Spring+安卓项目开发。已成功一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架二.Adroid搭建三.安卓中实现的前端功能，以及IDEA中处理的后端请求

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我是靠谱客的博主鲤鱼可乐，这篇文章主要介绍Spring+安卓项目开发。已成功一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架二.Adroid搭建三.安卓中实现的前端功能，以及IDEA中处理的后端请求，现在分享给大家，希望可以做个参考。

文章目录

一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架
- - 1.Spring整合mybatis
  - - - 1.进入达内将SSM框架需要的依赖导入
      - 2.创建yml文件
  - 2.创建数据库并使用逆向工程导入
  - - - 1.建立需要的数据库
      - 2.在resources文件下创建使用generatorConfig.xml文件进行逆向工程配置
  - 3.封装高可用对象ServerResponse对象
  - - - 1.封装一个ServerResponse类，用于返回状态，信息，提示
      - 2.封装一个enum类ResponseCode，用于放状态码跟状态信息
      - 3.建立一个DateUtil时间化工具类
二.Adroid搭建
- - 1.安卓连上网，跟IDEA产生交互
  - - - 1.首先需要添加两端代码在对应module的build.gradle中，让我们可用在后续使用OkHttp协议获取URL数据
      - 2.在utils包下添加OkHttpCallback和OkhttpUtils文件
      - 3.头文件xml中进行操作
      - 4.在res中创建一个xml包，包下包含network_config.xml文件
  - 2.建立一个类，其中含有Static全局变量方便后续使用
  - 3.编写Baseadapter类，用来使得listview以一个layout为样例实现
  - 4.碎片化管理Fragment，实现类似于ajax的效果。
  - - - 1.创建统一管理的main
三.安卓中实现的前端功能，以及IDEA中处理的后端请求
- - I.登录功能(对应LoginActivity与其的layout界面以及IDEA中的接口处理)，以下都只展示Activity的代码
  - - 1.安卓端先创建好登录的界面，以下为LoginActivity代码详解
    - 2.由于URL触发login.do请求，将在IDEA中处理
    - - 1.在Controller层中的UserController中接收login.do的request请求
      - 2.Service层给调用的IUserService
      - 3.impl重写IUserService
      - 4.mapper层中的userMapper给调用了方法
      - 5.usermapper引用了UserMapper.xml来使用数据库查找数据
  - II 注册功能
  - - 1.创建RegisterAcitivity，用于将注册的信息传到URL上
    - 2.URL触发了register请求，在IDEA中的UserController处理请求
    - - 3.在IUserService接口中定义了controller中的方法，并且利用impl重写使用
      - 4.在mapper层接口中定义上面的各种方法，并且利用mapper.xml查找数据返回结果
  - III 工作功能
  - - 1.进入OneFragment界面
    - 2.其中有两个URL，分别请求了UserController中关于兼职跟全职的请求
    - - 3.Controller中调用的两个service请求在对应的IJianzhiService中定义
      - 4.在impl中重写上面service的两种方法
      - 5.impl中调用的mapper方法在JianzhiMapper中定义，并通过mapper.xml返回数据
      - 6.mapper.xml连接数据库返回数据
  - IV消息列表
  - - 1.编辑TowFragment界面用于显示消息列表
    - 2.根据URL请求，在UserController中接收，并调用list方法处理
    - - 3.在service中定义findbyPhCon来根据phone跟cond查找对应的id，并根据id的大小来调用不同的findbyid方法
      - 4.在impl中重写上述的三种方法
      - 5.在jianzhimapper中定义上述的三种方法
  - V 我的功能
  - - 1.编辑ThreeFragment用于显示我的界面

一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架

1.Spring整合mybatis

1.进入达内将SSM框架需要的依赖导入

2.创建yml文件

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//创建yml文件
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
druid:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/shopping?serverTimezone=GMT%2B8
username: root
password: root
max-active: 20
max-wait: 6000
min-idle: 1
test-on-borrow: true
test-on-return: true
thymeleaf:
mode: HTML
encoding: UTF-8
cache: false
mybatis:
//mapper/xml对应生成的路径
mapper-locations: classpath*:com/example/androidtest/mapper/*Mapper.xml
//配置文件
config-location: classpath:mybatis-config.xml
shopping:
host: http://img.neuedu.com

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//在resources文件下创建mybatis-config.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="logImpl" value="LOG4J"/>
</settings>
<typeAliases>
</typeAliases>
</configuration>

2.创建数据库并使用逆向工程导入

1.建立需要的数据库

2.在resources文件下创建使用generatorConfig.xml文件进行逆向工程配置

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>


<classPathEntry location="D:\alijavaweb\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar" ></classPathEntry>
<context id="context" targetRuntime="MyBatis3">

<commentGenerator>
<property name="suppressDate" value="true"></property>
<property name="suppressAllComments" value="true"></property>
</commentGenerator>
//跟yml里的配置一样
<jdbcConnection
driverClass="com.mysql.cj.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/shopping?serverTimezone=GMT%2B8"
userId="root"
password="root">
</jdbcConnection>

<javaTypeResolver>
<property name="forceBigDecimals" value="false"></property>
</javaTypeResolver>


<javaModelGenerator targetPackage="com.example.androidtest.pojo" targetProject="./src/main/java">

<property name="enableSubPackages" value="false"></property>

<property name="constructorBased" value="true"></property>

<property name="trimStrings" value="true"></property>

<property name="immutable" value="false"></property>
</javaModelGenerator>


<sqlMapGenerator targetPackage="com.example.androidtest.mapper" targetProject="./src/main/resources">
<property name="enableSubPackages" value="false"></property>
</sqlMapGenerator>



<javaClientGenerator type="XMLMAPPER" targetPackage="com.example.androidtest.dao" targetProject="./src/main/java">

<property name="enableSubPackages" value="false" ></property>
</javaClientGenerator>

<table tableName="nite_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>







</context>
</generatorConfiguration>

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<!--导入属性配置-->
<!--指定特定数据库的jdbc驱动jar包的位置,需要找到自己的jar包的位置-->
<classPathEntry location="D:\alijavaweb\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar" />
<context id="context" targetRuntime="MyBatis3">
<!-- optional，旨在创建class时，对注释进行控制 -->
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--jdbc的数据库连接 -->//跟yml里的配置一样
<jdbcConnection
driverClass="com.mysql.cj.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/shopping?serverTimezone=GMT%2B8"
userId="root"
password="root">
</jdbcConnection>
<!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制-->
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- Model模型生成器,用来生成含有主键key的类，记录类 以及查询Example类
targetPackage
指定生成的model生成所在的包名
targetProject
指定在该项目下所在的路径
-->
<!-- 生成表对应的实体类-->
<javaModelGenerator targetPackage="com.example.androidtest.pojo" targetProject="./src/main/java">
<!-- 是否允许子包，即targetPackage.schemaName.tableName -->
<property name="enableSubPackages" value="false"/>
<!-- 是否对model添加 构造函数 -->
<property name="constructorBased" value="true"/>
<!-- 是否对类CHAR类型的列的数据进行trim操作 -->
<property name="trimStrings" value="true"/>
<!-- 建立的Model对象是否 不可改变
即生成的Model对象不会有 setter方法，只有构造方法 -->
<property name="immutable" value="false"/>
</javaModelGenerator>
<!--mapper映射文件生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 -->
<!--生成对应的mapper.xml文件-->
<sqlMapGenerator targetPackage="com.example.androidtest.mapper" targetProject="./src/main/resources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
-->
<!-- targetPackage：mapper接口dao生成的位置 -->
<!--生成对应的mapper接口文件-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.example.androidtest.dao" targetProject="./src/main/java">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<!--将tableName改成自己数据库表一样的名字跟数量-->
<table tableName="nite_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
<!--
<table tableName="nite_category" domainObjectName="Category" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--
<table tableName="nite_product" domainObjectName="Product" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--
<table tableName="nite_cart" domainObjectName="Cart" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--
<table tableName="nite_order" domainObjectName="Order" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--
<table tableName="nite_item" domainObjectName="Item" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!--
<table tableName="nite_shipping" domainObjectName="Shipping" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>-->
<!-- geelynote mybatis插件的搭建 -->
</context>
</generatorConfiguration>

3.封装高可用对象ServerResponse对象

心得：为什么要用这个封装的对象呢？原来我们返回一个比如实体类对象，比如 Jianzhi selectByid(int id);这种，但是如果用了ServerResponse这个封装的类型，我们可以多返回一个状态码来方便我们辨别正确/错误信息。

1.封装一个ServerResponse类，用于返回状态，信息，提示

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import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonNaming;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import lombok.Data;
/**
* 封装前端返回的统一实体类
* @param <T>
*/
@Data
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)//只包含非空字段
public class ServerResponse<T> {
private int status; //状态 0；接口调用成功
private T data; //泛型T，当status=0，将返回的数据封装到data中
private String msg; //提示信息
private ServerResponse(){}
private ServerResponse(int status){
this.status = status;
}
private ServerResponse(int status, T data){
this.status = status;
this.data = data;
}
private ServerResponse(int status, T data, String msg){
this.status = status;
this.data = data;
this.msg = msg;
}
@JsonIgnore
public boolean isSuccess(){
return this.status == 0;
}
public static ServerResponse createServerResponseBySuccess(){
return new ServerResponse(0);
}
/**
*<T>后跟方法名表示泛型方法
*/
public static <T> ServerResponse createServerResponseBySuccess(T data){
return new ServerResponse(0,data);
}
public static <T> ServerResponse createServerResponseBySuccess(T data,String msg){
return new ServerResponse(0,data,msg);
}
public static ServerResponse createServerResponseByFail(int status){
return new ServerResponse(status);
}
public static ServerResponse createServerResponseByFail(int status,String msg){
return new ServerResponse(status,null,msg);
}
}

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import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonNaming;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import lombok.Data;
/**
* 封装前端返回的统一实体类
* @param <T>
*/
@Data
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)//只包含非空字段
public class ServerResponse<T> {
private int status; //状态 0；接口调用成功
private T data; //泛型T，当status=0，将返回的数据封装到data中
private String msg; //提示信息
private ServerResponse(){}
private ServerResponse(int status){
this.status = status;
}
private ServerResponse(int status, T data){
this.status = status;
this.data = data;
}
private ServerResponse(int status, T data, String msg){
this.status = status;
this.data = data;
this.msg = msg;
}
@JsonIgnore
public boolean isSuccess(){
return this.status == 0;
}
public static ServerResponse createServerResponseBySuccess(){
return new ServerResponse(0);
}
/**
*<T>后跟方法名表示泛型方法
*/
public static <T> ServerResponse createServerResponseBySuccess(T data){
return new ServerResponse(0,data);
}
public static <T> ServerResponse createServerResponseBySuccess(T data,String msg){
return new ServerResponse(0,data,msg);
}
public static ServerResponse createServerResponseByFail(int status){
return new ServerResponse(status);
}
public static ServerResponse createServerResponseByFail(int status,String msg){
return new ServerResponse(status,null,msg);
}
}

2.封装一个enum类ResponseCode，用于放状态码跟状态信息

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public enum ResponseCode {
//状态信息放在;前面
USERNAME_NOT_EMPTY(1,"用户名不能为空"),
PASSWORD_NOT_EMPTY(2,"密码不能为空"),
USERNAME_NOT_EXIST(3,"用户名不存在"),
PASSWORD_ERROR(4,"密码错误"),
PARAMETER_NOT_EMPTY(5,"参数不能为空"),
EMAIL_NOT_EMPTY(6,"邮箱不能为空"),
QUESTION_NOT_EMPTY(7,"密保问题不能为空"),
ANSWER_NOT_EMPTY(8,"密保答案不能为空"),
PHONE_NOT_EMPTY(9,"电话不能为空"),
USERNAME_EXIST(10,"用户名已存在"),
EMAIL_EXIST(11,"邮箱已存在"),
REGISTER_FAIL(12,"注册失败"),
NEED_LOGIN(13,"未登录"),
USERINFO_UPDATE_FAIL(14,"用户信息修改失败"),
;
private int code;
private String msg;
ResponseCode(int code,String msg){
this.code = code;
this.msg = msg;
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
}

3.建立一个DateUtil时间化工具类

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import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import java.util.Date;
/*
时间格式化工具类
*/
public class DateUtil {
public static final String STANDARD = "yyyy-MM-dd HH:mm:ss";
//将String转成Date
public static Date string2Date(String strDate){
DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern(STANDARD);
DateTime dateTime = dateTimeFormatter.parseDateTime(strDate);
return dateTime.toDate();
}
//将Date转成String
public static String date2String(Date date){
if(date == null){
return StringUtils.EMPTY;
}
DateTime dateTime = new DateTime(date);
return dateTime.toString(STANDARD);
}
}

二.Adroid搭建

1.安卓连上网，跟IDEA产生交互

1.首先需要添加两端代码在对应module的build.gradle中，让我们可用在后续使用OkHttp协议获取URL数据

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implementation'com.squareup.okhttp3:okhttp:3.10.0'
implementation 'com.google.code.gson:gson:2.8.6'

2.在utils包下添加OkHttpCallback和OkhttpUtils文件

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//OkHttpUtils文件，用于获取URL上get或者post、downFile等方法的信息
public class OkHttpUtils {
private static final OkHttpClient CLIENT = new OkHttpClient();
public static void get(String url,OkHttpCallback Callback){
Callback.url = url;
//构建请求头
Request request = new Request.Builder().url(url).build();
//接收服务端的响应
CLIENT.newCall(request).enqueue(Callback);
}
public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
public static void post(String url,String json,OkHttpCallback callback){
callback.url = url;
RequestBody body = RequestBody.create(JSON,json);
Request request = new Request.Builder().url(url).post(body).build();
CLIENT.newCall(request).enqueue(callback);
}
public static void downFile(String url,final String saveDir,OkHttpCallback callback){
callback.url = url;
Request request = new Request.Builder().url(url).build();
CLIENT.newCall(request).enqueue( callback);
}
}

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import android.util.Log;
import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;
//监听服务端的响应，获取服务端的正确/报错信息
public class OkHttpCallback implements Callback {
private final String TAG
=com.example.onlinecareer.util.OkHttpCallback.class.getSimpleName();
public String url;
public String result;
//接口调用成功
@Override
public void onResponse(Call call, Response response) throws IOException {
Log.d(TAG,"url:"+url);
//成功时获取接口数据
result = response.body().string().toString();
Log.d(TAG,"请求成功:"+result);
//调用onFinish输出获取的信息，可用通过重写onFinish()方法，运用hashmap获取需要的值并存储
onFinish("success",result);
}
public void onFailure(Call call,IOException e){
Log.d(TAG,"url:"+url);
Log.d(TAG,"请求失败:"+e.toString());
//请求失败，输出失败的原因
onFinish("failure",e.toString());
}
public void onFinish(String status,String msg){
Log.d(TAG,"url:"+url + "status:" + status+"msg:"+msg);
}
}

3.头文件xml中进行操作

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<!--在头部插入-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!--在application标签中插入-->
android:networkSecurityConfig="@xml/network_config"
android:usesCleartextTraffic="true"

4.在res中创建一个xml包，包下包含network_config.xml文件

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<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<base-config cleartextTrafficPermitted="true" />
</network-security-config>

2.建立一个类，其中含有Static全局变量方便后续使用

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public class CommonData {
//登录状态
public static boolean isLogin=false;
//登录用户数据
public static HashMap<String, Object> user_hashMap;
public static HashMap<String, Object> user_hashMap1;
//所有用户数据
public static ArrayList<HashMap<String, Object>> list
=new ArrayList<HashMap<String,Object>>();
}

3.编写Baseadapter类，用来使得listview以一个layout为样例实现

复制代码

public class JobAdapter extends BaseAdapter {
//定义一个动态数组
private List<HashMap<String, Object>> data;
private Context context;
//这里的data是OneFragment传来的hashmap的数据
public JobAdapter(Context context, List<HashMap<String, Object>> data) {
this.context = context;
this.data = data;
}
@Override
public int getCount() {
return data.size();
}
@Override
public HashMap<String, Object> getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//跟目标的layout关联
if (convertView == null) {
convertView = View.inflate(context, R.layout.item_job, null);
new ViewHolder(convertView);
}
//获取目标layout的控件
final ViewHolder holder = (ViewHolder) convertView.getTag();
HashMap<String, Object> hashMap=getItem(position);
//将获得hashmap的数据放入控件列表中
holder.iv_job_icon.setBackgroundResource((Integer)hashMap.get("img"));
holder.tv_job_name.setText(hashMap.get("name").toString());
holder.tv_job_company.setText(hashMap.get("company").toString());
holder.tv_job_time.setText(hashMap.get("time").toString());
holder.tv_job_salary.setText(hashMap.get("salary").toString());
holder.tv_job_type.setText(hashMap.get("jobType").toString());
return convertView;
}
//跟目标layout的控件对应
class ViewHolder {
public ImageView iv_job_icon;
public TextView tv_job_name;
public TextView tv_job_company;
public TextView tv_job_time;
public TextView tv_job_salary;
public TextView tv_job_type;
public ViewHolder(View view) {
iv_job_icon = (ImageView) view.findViewById(R.id.iv_job_icon);
tv_job_name = (TextView) view.findViewById(R.id.tv_job_name);
tv_job_company = (TextView) view.findViewById(R.id.tv_job_company);
tv_job_time = (TextView) view.findViewById(R.id.tv_job_time);
tv_job_salary = (TextView) view.findViewById(R.id.tv_job_salary);
tv_job_type = (TextView) view.findViewById(R.id.tv_job_type);
view.setTag(this);
}
}
}

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public class JobAdapter extends BaseAdapter {
//定义一个动态数组
private List<HashMap<String, Object>> data;
private Context context;
//这里的data是OneFragment传来的hashmap的数据
public JobAdapter(Context context, List<HashMap<String, Object>> data) {
this.context = context;
this.data = data;
}
@Override
public int getCount() {
return data.size();
}
@Override
public HashMap<String, Object> getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//跟目标的layout关联
if (convertView == null) {
convertView = View.inflate(context, R.layout.item_job, null);
new ViewHolder(convertView);
}
//获取目标layout的控件
final ViewHolder holder = (ViewHolder) convertView.getTag();
HashMap<String, Object> hashMap=getItem(position);
//将获得hashmap的数据放入控件列表中
holder.iv_job_icon.setBackgroundResource((Integer)hashMap.get("img"));
holder.tv_job_name.setText(hashMap.get("name").toString());
holder.tv_job_company.setText(hashMap.get("company").toString());
holder.tv_job_time.setText(hashMap.get("time").toString());
holder.tv_job_salary.setText(hashMap.get("salary").toString());
holder.tv_job_type.setText(hashMap.get("jobType").toString());
return convertView;
}
//跟目标layout的控件对应
class ViewHolder {
public ImageView iv_job_icon;
public TextView tv_job_name;
public TextView tv_job_company;
public TextView tv_job_time;
public TextView tv_job_salary;
public TextView tv_job_type;
public ViewHolder(View view) {
iv_job_icon = (ImageView) view.findViewById(R.id.iv_job_icon);
tv_job_name = (TextView) view.findViewById(R.id.tv_job_name);
tv_job_company = (TextView) view.findViewById(R.id.tv_job_company);
tv_job_time = (TextView) view.findViewById(R.id.tv_job_time);
tv_job_salary = (TextView) view.findViewById(R.id.tv_job_salary);
tv_job_type = (TextView) view.findViewById(R.id.tv_job_type);
view.setTag(this);
}
}
}

4.碎片化管理Fragment，实现类似于ajax的效果。

1.创建统一管理的main

复制代码

@SuppressLint("NewApi")
public class MainActivity extends Activity implements CompoundButton.OnCheckedChangeListener {
private FrameLayout frameLayout;
public OneFragment oneFragment;
public TwoFragment twoFragment;
public ThreeFragment threeFragment;
public Fragment fa;
private RadioButton radioButton1, radioButton2, radioButton3;
private int currentTab = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initView();
initEvent();
}
@Override
protected void onResume() {
super.onResume();
setSelect(currentTab);
}
private void initView() {
frameLayout = (FrameLayout) findViewById(R.id.fl_content);
radioButton1 = (RadioButton) findViewById(R.id.radioButton1);
radioButton2 = (RadioButton) findViewById(R.id.radioButton2);
radioButton3 = (RadioButton) findViewById(R.id.radioButton3);
}
//在刚开始点开的时候进入0代表的页面
private void initEvent() {
// TODO Auto-generated method stub
radioButton1.setOnCheckedChangeListener(this);
radioButton2.setOnCheckedChangeListener(this);
radioButton3.setOnCheckedChangeListener(this);
setSelect(0);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
radioButton1.setTextColor(0xff2C97D4);
}
//设置下面三个按钮的样式，并且全部设成灰色
private void setImg() {
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_normal), null, null);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_normal), null, null);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_normal), null, null);
radioButton1.setTextColor(0xff979797);
radioButton2.setTextColor(0xff979797);
radioButton3.setTextColor(0xff979797);
}
//这里是监听按钮，按下后可以给予需要的页面
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
switch (buttonView.getId()) {
case R.id.radioButton1:
setImg();
currentTab = 0;
radioButton1.setTextColor(0xff2C97D4);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
setSelect(0);
break;
case R.id.radioButton2:
if (CommonData.isLogin) {
setImg();
currentTab = 1;
radioButton2.setTextColor(0xff2C97D4);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_selected), null, null);
setSelect(1);
} else {
Intent intent = new Intent(this, LoginActivity.class);
startActivityForResult(intent, 1);
}
break;
case R.id.radioButton3:
setImg();
currentTab = 2;
radioButton3.setTextColor(0xff2C97D4);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_selected), null, null);
setSelect(2);
break;
}
}
}
//这是刚开始登录的时候传了个ok来，然后通过判断它来获得页面是否登录，登录则给进入1代表的界面
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
String result = data.getExtras().getString("result");// 得到新Activity
// 关闭后返回的数据
if (result.equals("ok")) {
setImg();
currentTab = 1;
radioButton2.setTextColor(0xff2C97D4);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_selected), null, null);
setSelect(1);
} else {
if (currentTab == 0) {
radioButton1.setChecked(true);
radioButton1.setTextColor(0xff2C97D4);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
setSelect(0);
} else if (currentTab == 2) {
radioButton3.setChecked(true);
radioButton3.setTextColor(0xff2C97D4);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_selected), null, null);
setSelect(2);
}
}
}
//该方法让界面上不需要的内容隐藏，需要的显示出来
public void setSelect(int i) {
FragmentManager fm = getFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
switch (i) {
case 0:
hideFragment(transaction, twoFragment);
hideFragment(transaction, threeFragment);
if (oneFragment == null) {
oneFragment = new OneFragment();
transaction.add(R.id.fl_content, oneFragment, "oneFragment");
} else {
transaction.show(oneFragment);
}
break;
case 1:
hideFragment(transaction, oneFragment);
hideFragment(transaction, threeFragment);
if (twoFragment == null) {
twoFragment = new TwoFragment();
transaction.add(R.id.fl_content, twoFragment, "twoFragment");
} else {
transaction.show(twoFragment);
}
break;
case 2:
hideFragment(transaction, oneFragment);
hideFragment(transaction, twoFragment);
if (threeFragment == null) {
threeFragment = new ThreeFragment();
transaction.add(R.id.fl_content, threeFragment, "threeFragment");
} else {
transaction.show(threeFragment);
}
break;
}
transaction.commit();
}
//隐藏fragment
private void hideFragment(FragmentTransaction transaction, Fragment fragment) {
if (fragment != null) {
transaction.hide(fragment);
}
}
/**
* 点击退出键退出界面的时候不会关闭,应用下次进入的时候不用重启
*/
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
&& event.getAction() == KeyEvent.ACTION_DOWN
&& event.getRepeatCount() == 0) {
// 具体的操作代码
moveTaskToBack(true);
return true;
}
return super.dispatchKeyEvent(event);
}
}

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@SuppressLint("NewApi")
public class MainActivity extends Activity implements CompoundButton.OnCheckedChangeListener {
private FrameLayout frameLayout;
public OneFragment oneFragment;
public TwoFragment twoFragment;
public ThreeFragment threeFragment;
public Fragment fa;
private RadioButton radioButton1, radioButton2, radioButton3;
private int currentTab = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initView();
initEvent();
}
@Override
protected void onResume() {
super.onResume();
setSelect(currentTab);
}
private void initView() {
frameLayout = (FrameLayout) findViewById(R.id.fl_content);
radioButton1 = (RadioButton) findViewById(R.id.radioButton1);
radioButton2 = (RadioButton) findViewById(R.id.radioButton2);
radioButton3 = (RadioButton) findViewById(R.id.radioButton3);
}
//在刚开始点开的时候进入0代表的页面
private void initEvent() {
// TODO Auto-generated method stub
radioButton1.setOnCheckedChangeListener(this);
radioButton2.setOnCheckedChangeListener(this);
radioButton3.setOnCheckedChangeListener(this);
setSelect(0);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
radioButton1.setTextColor(0xff2C97D4);
}
//设置下面三个按钮的样式，并且全部设成灰色
private void setImg() {
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_normal), null, null);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_normal), null, null);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_normal), null, null);
radioButton1.setTextColor(0xff979797);
radioButton2.setTextColor(0xff979797);
radioButton3.setTextColor(0xff979797);
}
//这里是监听按钮，按下后可以给予需要的页面
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
switch (buttonView.getId()) {
case R.id.radioButton1:
setImg();
currentTab = 0;
radioButton1.setTextColor(0xff2C97D4);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
setSelect(0);
break;
case R.id.radioButton2:
if (CommonData.isLogin) {
setImg();
currentTab = 1;
radioButton2.setTextColor(0xff2C97D4);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_selected), null, null);
setSelect(1);
} else {
Intent intent = new Intent(this, LoginActivity.class);
startActivityForResult(intent, 1);
}
break;
case R.id.radioButton3:
setImg();
currentTab = 2;
radioButton3.setTextColor(0xff2C97D4);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_selected), null, null);
setSelect(2);
break;
}
}
}
//这是刚开始登录的时候传了个ok来，然后通过判断它来获得页面是否登录，登录则给进入1代表的界面
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
String result = data.getExtras().getString("result");// 得到新Activity
// 关闭后返回的数据
if (result.equals("ok")) {
setImg();
currentTab = 1;
radioButton2.setTextColor(0xff2C97D4);
radioButton2.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.message_selected), null, null);
setSelect(1);
} else {
if (currentTab == 0) {
radioButton1.setChecked(true);
radioButton1.setTextColor(0xff2C97D4);
radioButton1.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.home_selected), null, null);
setSelect(0);
} else if (currentTab == 2) {
radioButton3.setChecked(true);
radioButton3.setTextColor(0xff2C97D4);
radioButton3.setCompoundDrawablesWithIntrinsicBounds(
null,
getApplication().getResources().getDrawable(
R.drawable.my_selected), null, null);
setSelect(2);
}
}
}
//该方法让界面上不需要的内容隐藏，需要的显示出来
public void setSelect(int i) {
FragmentManager fm = getFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
switch (i) {
case 0:
hideFragment(transaction, twoFragment);
hideFragment(transaction, threeFragment);
if (oneFragment == null) {
oneFragment = new OneFragment();
transaction.add(R.id.fl_content, oneFragment, "oneFragment");
} else {
transaction.show(oneFragment);
}
break;
case 1:
hideFragment(transaction, oneFragment);
hideFragment(transaction, threeFragment);
if (twoFragment == null) {
twoFragment = new TwoFragment();
transaction.add(R.id.fl_content, twoFragment, "twoFragment");
} else {
transaction.show(twoFragment);
}
break;
case 2:
hideFragment(transaction, oneFragment);
hideFragment(transaction, twoFragment);
if (threeFragment == null) {
threeFragment = new ThreeFragment();
transaction.add(R.id.fl_content, threeFragment, "threeFragment");
} else {
transaction.show(threeFragment);
}
break;
}
transaction.commit();
}
//隐藏fragment
private void hideFragment(FragmentTransaction transaction, Fragment fragment) {
if (fragment != null) {
transaction.hide(fragment);
}
}
/**
* 点击退出键退出界面的时候不会关闭,应用下次进入的时候不用重启
*/
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
&& event.getAction() == KeyEvent.ACTION_DOWN
&& event.getRepeatCount() == 0) {
// 具体的操作代码
moveTaskToBack(true);
return true;
}
return super.dispatchKeyEvent(event);
}
}

三.安卓中实现的前端功能，以及IDEA中处理的后端请求

I.登录功能(对应LoginActivity与其的layout界面以及IDEA中的接口处理)，以下都只展示Activity的代码

心得:在Spring中，一般是先定义mapper层，然后.xml取数据库查找返回需要的数据。再定Service层，impl重写service方法，在其中调用mapper层的方法拿去数据。最后在controller使用service方法处理请求

1.安卓端先创建好登录的界面，以下为LoginActivity代码详解

复制代码

public class LoginActivity extends Activity implements View.OnClickListener {
private TextView tv_back, tv_title, tv_register;
private EditText et_account, et_password;
private Button btn_login;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
initView();
}
private void initView() {
tv_title = (TextView) findViewById(R.id.tv_title);
tv_title.setText(R.string.login);
tv_back = (TextView) findViewById(R.id.tv_back);
tv_register = (TextView) findViewById(R.id.tv_register);
btn_login = (Button) findViewById(R.id.btn_login);
tv_back.setOnClickListener(this);
tv_register.setOnClickListener(this);
btn_login.setOnClickListener(this);
et_account = (EditText) findViewById(R.id.et_account);
et_password = (EditText) findViewById(R.id.et_password);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.tv_register:
Intent
intent=new Intent(this,RegisterActivity.class);
startActivity(intent);
break;
case R.id.btn_login:
String username=et_account.getText().toString();
String psd=et_password.getText().toString();
//通过OkHttoUtils.get的方法获取URL传来的json数据，json数据会存在onFinish方法的msg中
//此处的URL去访问了这个网址，触发了IDEA中的request请求，在IDEA中的UserController中处理
OkHttpUtils.get("http://172.21.254.44:8080/portal/user/login.do?username="+username+"&password="+psd,
new OkHttpCallback(){
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析msg
Looper.prepare();
Gson gson = new Gson();
//通过gson.from方法返回需要的类型的数据
ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
System.out.println(serverResponse.getData().getId());
if (serverResponse == null) {
Toast.makeText(LoginActivity.this,"用户名或密码不正确",Toast.LENGTH_SHORT).show();
}else{
//用hashMap静态全局变量转发获取的值。
HashMap<String,Object> hashMap = new HashMap<String,Object>();
hashMap.put("id",serverResponse.getData().getId());
hashMap.put("name",serverResponse.getData().getUsername());
hashMap.put("password",serverResponse.getData().getPassword());
hashMap.put("phone",serverResponse.getData().getPhone());
hashMap.put("major",serverResponse.getData().getIp());
hashMap.put("sex",serverResponse.getData().getQuestion());
hashMap.put("age",serverResponse.getData().getAnswer());
hashMap.put("school",serverResponse.getData().getEmail());
System.out.println(serverResponse.getData().getId());
//标志登录状态
CommonData.isLogin=true;
//将获取的数据存入CommonData的全局变量中
CommonData.user_hashMap1=hashMap;
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
intent.putExtra("result", "ok");
setResult(RESULT_OK, intent);
startActivity(intent);
}
Looper.loop();
}
});
break;
}
}
}

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public class LoginActivity extends Activity implements View.OnClickListener {
private TextView tv_back, tv_title, tv_register;
private EditText et_account, et_password;
private Button btn_login;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
initView();
}
private void initView() {
tv_title = (TextView) findViewById(R.id.tv_title);
tv_title.setText(R.string.login);
tv_back = (TextView) findViewById(R.id.tv_back);
tv_register = (TextView) findViewById(R.id.tv_register);
btn_login = (Button) findViewById(R.id.btn_login);
tv_back.setOnClickListener(this);
tv_register.setOnClickListener(this);
btn_login.setOnClickListener(this);
et_account = (EditText) findViewById(R.id.et_account);
et_password = (EditText) findViewById(R.id.et_password);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.tv_register:
Intent
intent=new Intent(this,RegisterActivity.class);
startActivity(intent);
break;
case R.id.btn_login:
String username=et_account.getText().toString();
String psd=et_password.getText().toString();
//通过OkHttoUtils.get的方法获取URL传来的json数据，json数据会存在onFinish方法的msg中
//此处的URL去访问了这个网址，触发了IDEA中的request请求，在IDEA中的UserController中处理
OkHttpUtils.get("http://172.21.254.44:8080/portal/user/login.do?username="+username+"&password="+psd,
new OkHttpCallback(){
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析msg
Looper.prepare();
Gson gson = new Gson();
//通过gson.from方法返回需要的类型的数据
ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
System.out.println(serverResponse.getData().getId());
if (serverResponse == null) {
Toast.makeText(LoginActivity.this,"用户名或密码不正确",Toast.LENGTH_SHORT).show();
}else{
//用hashMap静态全局变量转发获取的值。
HashMap<String,Object> hashMap = new HashMap<String,Object>();
hashMap.put("id",serverResponse.getData().getId());
hashMap.put("name",serverResponse.getData().getUsername());
hashMap.put("password",serverResponse.getData().getPassword());
hashMap.put("phone",serverResponse.getData().getPhone());
hashMap.put("major",serverResponse.getData().getIp());
hashMap.put("sex",serverResponse.getData().getQuestion());
hashMap.put("age",serverResponse.getData().getAnswer());
hashMap.put("school",serverResponse.getData().getEmail());
System.out.println(serverResponse.getData().getId());
//标志登录状态
CommonData.isLogin=true;
//将获取的数据存入CommonData的全局变量中
CommonData.user_hashMap1=hashMap;
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
intent.putExtra("result", "ok");
setResult(RESULT_OK, intent);
startActivity(intent);
}
Looper.loop();
}
});
break;
}
}
}

2.由于URL触发login.do请求，将在IDEA中处理

1.在Controller层中的UserController中接收login.do的request请求

复制代码

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@RestController//标注为Controller并且返回json数据
@RequestMapping("/portal/")//所有请求以/portal开头
public class UserController {
@Autowired
IUserService userService;
@Resource
IJianzhiService iJianzhiService;
@RequestMapping(value = "user/login.do")
public ServerResponse login(String username, String password, HttpSession session){
//调用Service层的userSerivce的loginLogic方法返回User对象的数据
ServerResponse serverResponse = userService.loginLogic(username,password);
if(serverResponse.isSuccess()){
session.setAttribute(Const.CURRENT_USER,serverResponse.getData());
}
//return返回带有User对象数据跟状态0的数据
return serverResponse;
}
}

2.Service层给调用的IUserService

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public interface IUserService {
public ServerResponse loginLogic(String username,String password);
}

3.impl重写IUserService

复制代码

@Service
public class UserService implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public ServerResponse loginLogic(String username,String password){
//step1:用户名和密码的非空判断
/**
* 通过commons-lang依赖中的封装方法也可以进行空判断
* 其中方法有StringUtils.isBlank,StringUtils.isEmpty
*/
if(StringUtils.isBlank(username)){
//return+ServerResponse中返回的失败信息
return ServerResponse.createServerResponseByFail
(ResponseCode.USERNAME_NOT_EMPTY.getCode()
,ResponseCode.USERNAME_NOT_EMPTY.getMsg());
}
if(StringUtils.isBlank(password)){
return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
}
//step2:查看用户名是否存在
Integer count = userMapper.findByUsername(username);
if(count == 0){
return ServerResponse.createServerResponseByFail
(ResponseCode.USERNAME_NOT_EXIST.getCode(),
ResponseCode.USERNAME_NOT_EXIST.getMsg());}
//step3:调用usermapper的方法根据用户名和密码查询该用户的信息。
User user = userMapper.findByUsernameAndPassword(username,password);
if(user == null){
return ServerResponse.createServerResponseByFail
(ResponseCode.PASSWORD_ERROR.getCode(),
ResponseCode.PASSWORD_ERROR.getMsg());}
//step4:返回结果，对应以下的方法获取了状态0，以及user对象中携带的json数据
return ServerResponse.createServerResponseBySuccess(convert(user));
/*public static <T> ServerResponse createServerResponseBySuccess(T data){
return new ServerResponse(0,data);}*/
}
//另外封装的UserVO对象返回的数据，给网页显示，可不给关键信息显示到前端给人看到。
private UserVO convert(User user){
UserVO userVO = new UserVO();
userVO.setId(user.getId());
userVO.setQuestion(user.getQuestion());
userVO.setAnswer(user.getAnswer());
userVO.setUsername(user.getUsername());
userVO.setPassword(user.getPassword());
userVO.setEmail(user.getEmail());
userVO.setPhone(user.getPhone());
userVO.setIp(user.getIp());
userVO.setCreateTime(DateUtil.date2String(user.getCreateTime()));
userVO.setUpdateTime(DateUtil.date2String(user.getUpdateTime()));
return userVO;
}
}

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@Service
public class UserService implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public ServerResponse loginLogic(String username,String password){
//step1:用户名和密码的非空判断
/**
* 通过commons-lang依赖中的封装方法也可以进行空判断
* 其中方法有StringUtils.isBlank,StringUtils.isEmpty
*/
if(StringUtils.isBlank(username)){
//return+ServerResponse中返回的失败信息
return ServerResponse.createServerResponseByFail
(ResponseCode.USERNAME_NOT_EMPTY.getCode()
,ResponseCode.USERNAME_NOT_EMPTY.getMsg());
}
if(StringUtils.isBlank(password)){
return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
}
//step2:查看用户名是否存在
Integer count = userMapper.findByUsername(username);
if(count == 0){
return ServerResponse.createServerResponseByFail
(ResponseCode.USERNAME_NOT_EXIST.getCode(),
ResponseCode.USERNAME_NOT_EXIST.getMsg());}
//step3:调用usermapper的方法根据用户名和密码查询该用户的信息。
User user = userMapper.findByUsernameAndPassword(username,password);
if(user == null){
return ServerResponse.createServerResponseByFail
(ResponseCode.PASSWORD_ERROR.getCode(),
ResponseCode.PASSWORD_ERROR.getMsg());}
//step4:返回结果，对应以下的方法获取了状态0，以及user对象中携带的json数据
return ServerResponse.createServerResponseBySuccess(convert(user));
/*public static <T> ServerResponse createServerResponseBySuccess(T data){
return new ServerResponse(0,data);}*/
}
//另外封装的UserVO对象返回的数据，给网页显示，可不给关键信息显示到前端给人看到。
private UserVO convert(User user){
UserVO userVO = new UserVO();
userVO.setId(user.getId());
userVO.setQuestion(user.getQuestion());
userVO.setAnswer(user.getAnswer());
userVO.setUsername(user.getUsername());
userVO.setPassword(user.getPassword());
userVO.setEmail(user.getEmail());
userVO.setPhone(user.getPhone());
userVO.setIp(user.getIp());
userVO.setCreateTime(DateUtil.date2String(user.getCreateTime()));
userVO.setUpdateTime(DateUtil.date2String(user.getUpdateTime()));
return userVO;
}
}

4.mapper层中的userMapper给调用了方法

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public interface UserMapper {
int findByUsername(@Param("username") String username);
User findByUsernameAndPassword(@Param("username") String username,@Param("password")
String password);
}

5.usermapper引用了UserMapper.xml来使用数据库查找数据

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--将对应的mapper对应上-->
<mapper namespace="com.example.androidtest.dao.UserMapper">
<!--其中paramterType为输入数据类型，resultType为输出的数据类型-->
<!--id对应方法名-->
<select id="findByUsername" parameterType="String" resultType="int">
select count(*)
from nite_user
where username = #{username}
</select>
<select id="findByUsernameAndPassword" parameterType="map" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from nite_user
where username = #{username} and password = #{password}
</select>
</mapper>

II 注册功能

思路：1.安卓端建立注册页面，当点击了注册按钮之后，可以把需要的信息通过实例化对象获取，并用URL get请求来给予后端 2.后端处理URL请求，存入数据库。

1.创建RegisterAcitivity，用于将注册的信息传到URL上

$< E m p t y M a t h B l o c k >$

复制代码

@SuppressLint("NewApi")
public class RegisterActivity extends Activity implements View.OnClickListener {
private TextView tv_back, tv_title;
private EditText et_phone, et_password, et_re_password,et_name;
private Button btn_register;
RadioButton rb_nan,rb_nv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
initView();
}
private void initView() {
tv_title = (TextView) findViewById(R.id.tv_title);
tv_title.setText(R.string.register);
tv_back = (TextView) findViewById(R.id.tv_back);
btn_register = (Button) findViewById(R.id.btn_register);
rb_nan = findViewById(R.id.rb_man);
rb_nv = findViewById(R.id.rb_woman);
tv_back.setOnClickListener(this);
btn_register.setOnClickListener(this);
et_phone = (EditText) findViewById(R.id.et_phone);
et_password = (EditText) findViewById(R.id.et_password);
et_re_password = (EditText) findViewById(R.id.et_re_password);
et_name = findViewById(R.id.et_name);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.tv_back:
Intent intent = new Intent(this,LoginActivity.class);
startActivity(intent);
break;
case R.id.btn_register:
String name = et_name.getText().toString();
String phone = et_phone.getText().toString();
String psd= et_password.getText().toString();
String psd1 = et_re_password.getText().toString();
if(phone.equals("")||psd.equals("")||psd1.equals("")||name.equals("")){
Toast.makeText(RegisterActivity.this,"填写信息不完整", Toast.LENGTH_LONG).show();
}else if(!psd.equals(psd1)){
Toast.makeText(RegisterActivity.this,"密码不一致", Toast.LENGTH_LONG).show();
}else {
//将输入的姓名、密码、电话传到URL请求中，让IDEA中的UserController中的方法来获取并处理
OkHttpUtils.get("http://172.21.254.44:8080/portal/user/register.do?username="+name+"&password="+psd+"&phone"+phone,
new OkHttpCallback(){
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析msg
Gson gson = new Gson();
ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
int status1 = serverResponse.getStatus();
if(status1 == 0){
Looper.prepare();
//子线程弹窗需添加
Toast.makeText(RegisterActivity.this,"注册成功",Toast.LENGTH_SHORT).show();
Looper.loop();
//子线程弹窗需添加
}
}
});
Intent intent1 = new Intent(RegisterActivity.this,LoginActivity.class);
startActivity(intent1);
}
break;
}
}
//用户是否已存在
private boolean isExist(SQLiteDatabase db, String tel) {
//
DBHelper helper=new DBHelper(this);
//
db=helper.getReadableDatabase();
String sql = "select * from user_table where tel = '" + tel + "'";
Cursor cursor = db.rawQuery(sql, new String[0]);
//
db.close();
if (cursor.getCount() != 0) {
Toast.makeText(RegisterActivity.this, "用户已经存在，不能重复注册！", Toast.LENGTH_SHORT).show();
cursor.close();
return true;
}else{
cursor.close();
return false;
}
}
// 验证电话号码
public boolean isMobileNumber(String mobiles) {
Pattern p = Pattern
.compile("^((13[0-9])|(14[5,7])|(15[^4,\D])|(18[0-9])|(17[0,6,7,8]))\d{8}$");
Matcher m = p.matcher(mobiles);
return m.matches();
}
}

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@SuppressLint("NewApi")
public class RegisterActivity extends Activity implements View.OnClickListener {
private TextView tv_back, tv_title;
private EditText et_phone, et_password, et_re_password,et_name;
private Button btn_register;
RadioButton rb_nan,rb_nv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
initView();
}
private void initView() {
tv_title = (TextView) findViewById(R.id.tv_title);
tv_title.setText(R.string.register);
tv_back = (TextView) findViewById(R.id.tv_back);
btn_register = (Button) findViewById(R.id.btn_register);
rb_nan = findViewById(R.id.rb_man);
rb_nv = findViewById(R.id.rb_woman);
tv_back.setOnClickListener(this);
btn_register.setOnClickListener(this);
et_phone = (EditText) findViewById(R.id.et_phone);
et_password = (EditText) findViewById(R.id.et_password);
et_re_password = (EditText) findViewById(R.id.et_re_password);
et_name = findViewById(R.id.et_name);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.tv_back:
Intent intent = new Intent(this,LoginActivity.class);
startActivity(intent);
break;
case R.id.btn_register:
String name = et_name.getText().toString();
String phone = et_phone.getText().toString();
String psd= et_password.getText().toString();
String psd1 = et_re_password.getText().toString();
if(phone.equals("")||psd.equals("")||psd1.equals("")||name.equals("")){
Toast.makeText(RegisterActivity.this,"填写信息不完整", Toast.LENGTH_LONG).show();
}else if(!psd.equals(psd1)){
Toast.makeText(RegisterActivity.this,"密码不一致", Toast.LENGTH_LONG).show();
}else {
//将输入的姓名、密码、电话传到URL请求中，让IDEA中的UserController中的方法来获取并处理
OkHttpUtils.get("http://172.21.254.44:8080/portal/user/register.do?username="+name+"&password="+psd+"&phone"+phone,
new OkHttpCallback(){
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析msg
Gson gson = new Gson();
ServerResponse<User> serverResponse = gson.fromJson(msg, new TypeToken<ServerResponse<User>>(){}.getType());
int status1 = serverResponse.getStatus();
if(status1 == 0){
Looper.prepare();
//子线程弹窗需添加
Toast.makeText(RegisterActivity.this,"注册成功",Toast.LENGTH_SHORT).show();
Looper.loop();
//子线程弹窗需添加
}
}
});
Intent intent1 = new Intent(RegisterActivity.this,LoginActivity.class);
startActivity(intent1);
}
break;
}
}
//用户是否已存在
private boolean isExist(SQLiteDatabase db, String tel) {
//
DBHelper helper=new DBHelper(this);
//
db=helper.getReadableDatabase();
String sql = "select * from user_table where tel = '" + tel + "'";
Cursor cursor = db.rawQuery(sql, new String[0]);
//
db.close();
if (cursor.getCount() != 0) {
Toast.makeText(RegisterActivity.this, "用户已经存在，不能重复注册！", Toast.LENGTH_SHORT).show();
cursor.close();
return true;
}else{
cursor.close();
return false;
}
}
// 验证电话号码
public boolean isMobileNumber(String mobiles) {
Pattern p = Pattern
.compile("^((13[0-9])|(14[5,7])|(15[^4,\D])|(18[0-9])|(17[0,6,7,8]))\d{8}$");
Matcher m = p.matcher(mobiles);
return m.matches();
}
}

2.URL触发了register请求，在IDEA中的UserController处理请求

复制代码

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@RequestMapping(value = "user/register.do")
public ServerResponse register(User user){
return userService.registerLogic(user);
}

3.在IUserService接口中定义了controller中的方法，并且利用impl重写使用

复制代码

@Override
public ServerResponse registerLogic(User user){
//step1:用户名和密码等一些列数据的非空判断
if(user == null){
return ServerResponse.createServerResponseByFail(ResponseCode.PARAMETER_NOT_EMPTY.getCode(),ResponseCode.PARAMETER_NOT_EMPTY.getMsg());
}
String username = user.getUsername();
String password = user.getPassword();
String email = user.getEmail();
String question = user.getQuestion();
String answer = user.getAnswer();
String phone = user.getPhone();
if(StringUtils.isBlank(username)){
return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_NOT_EMPTY.getCode(),ResponseCode.USERNAME_NOT_EMPTY.getMsg());
}
if(StringUtils.isBlank(password)){
return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
}
//step2 判断用户名是否存在
Integer count = userMapper.findByUsername(username);
if(count > 0){
return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_EXIST.getCode(),ResponseCode.USERNAME_EXIST.getMsg());
}
//step3 判断邮箱是否存在
Integer email_count = userMapper.findByEmail(email);
if(email_count > 0){
return ServerResponse.createServerResponseByFail(ResponseCode.EMAIL_EXIST.getCode(),ResponseCode.EMAIL_EXIST.getMsg());
}
//step4 注册
//可加密
user.setRole(Const.CUSTOM);
Integer result = userMapper.insert(user);
if(result == 0){
return ServerResponse.createServerResponseByFail(ResponseCode.REGISTER_FAIL.getCode(),ResponseCode.REGISTER_FAIL.getMsg());
}
return ServerResponse.createServerResponseBySuccess();
}

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@Override
public ServerResponse registerLogic(User user){
//step1:用户名和密码等一些列数据的非空判断
if(user == null){
return ServerResponse.createServerResponseByFail(ResponseCode.PARAMETER_NOT_EMPTY.getCode(),ResponseCode.PARAMETER_NOT_EMPTY.getMsg());
}
String username = user.getUsername();
String password = user.getPassword();
String email = user.getEmail();
String question = user.getQuestion();
String answer = user.getAnswer();
String phone = user.getPhone();
if(StringUtils.isBlank(username)){
return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_NOT_EMPTY.getCode(),ResponseCode.USERNAME_NOT_EMPTY.getMsg());
}
if(StringUtils.isBlank(password)){
return ServerResponse.createServerResponseByFail(ResponseCode.PASSWORD_NOT_EMPTY.getCode(),ResponseCode.PASSWORD_NOT_EMPTY.getMsg());
}
//step2 判断用户名是否存在
Integer count = userMapper.findByUsername(username);
if(count > 0){
return ServerResponse.createServerResponseByFail(ResponseCode.USERNAME_EXIST.getCode(),ResponseCode.USERNAME_EXIST.getMsg());
}
//step3 判断邮箱是否存在
Integer email_count = userMapper.findByEmail(email);
if(email_count > 0){
return ServerResponse.createServerResponseByFail(ResponseCode.EMAIL_EXIST.getCode(),ResponseCode.EMAIL_EXIST.getMsg());
}
//step4 注册
//可加密
user.setRole(Const.CUSTOM);
Integer result = userMapper.insert(user);
if(result == 0){
return ServerResponse.createServerResponseByFail(ResponseCode.REGISTER_FAIL.getCode(),ResponseCode.REGISTER_FAIL.getMsg());
}
return ServerResponse.createServerResponseBySuccess();
}

4.在mapper层接口中定义上面的各种方法，并且利用mapper.xml查找数据返回结果

III 工作功能

因为进入LoginActivity登录会转入MainActivity判断，刚开始默认进入0代表的Fragment界面。

1.进入OneFragment界面

复制代码

@SuppressLint("NewApi")
public class OneFragment extends Fragment implements OnClickListener {
private View rootView;
private TextView tv_part_job,tv_full_time;
private ListView lv_job;
private JobAdapter adapter;
//创建两个hashmap的list类型用于存放全职跟兼职的数据
private List<HashMap<String, Object>> part_job_Data;
private List<HashMap<String, Object>> full_job_Data;
private int job_type=0;//0代表兼职，1代表全职
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater.inflate(R.layout.fragment_one, container, false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initData();
initView();
//进入职位详情
lv_job.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapter, View arg1, int position,
long arg3) {
Intent intent=new Intent(getActivity(), JobDetailActivity.class);
Bundle data = new Bundle();
data.putSerializable("job", (HashMap<String, Object>)adapter.getItemAtPosition(position));
intent.putExtras(data);
startActivity(intent);
}
});
}
private void initData(){
part_job_Data=new ArrayList<HashMap<String, Object>>();
full_job_Data=new ArrayList<HashMap<String, Object>>();
//通过URL去UserController中使用findjianzhi方法获取数据库中的兼职数据并返回。
OkHttpUtils.get("http://172.21.254.44:8080/portal/findjianzhi.do"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name",job.get(i).getPartjobname());
hashMap.put("jobType", "兼职");
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
part_job_Data.add(hashMap);
}
//Looper.loop();
}
});
//通过URL去UserController中使用findquanzhi方法获取数据库中的兼职数据并返回。
OkHttpUtils.get("http://172.21.254.44:8080/portal/findquanzhi.do"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
hashMap.put("jobType", "全职");
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime().toString());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
full_job_Data.add(hashMap);
}
//Looper.loop();
}
});
}
private void initView() {
tv_part_job=(TextView) rootView.findViewById(R.id.tv_part_job);
tv_full_time=(TextView) rootView.findViewById(R.id.tv_full_time);
lv_job=(ListView) rootView.findViewById(R.id.lv_job);
tv_part_job.setOnClickListener(this);
tv_full_time.setOnClickListener(this);
//刚开始进入OneFragment时，先通过adapter将兼职的信息放入listview中
adapter=new JobAdapter(getActivity(), part_job_Data);
lv_job.setAdapter(adapter);
}
//通过点击事件来切换兼职跟全职信息
@Override
public void onClick(View v) {
setTextColor();
switch (v.getId()) {
case R.id.tv_part_job:
tv_part_job.setTextColor(getResources().getColor(R.color.basecolor));
job_type=0;
//运用adapter让listview跟item联系起来。
adapter=new JobAdapter(getActivity(), part_job_Data);
lv_job.setAdapter(adapter);
break;
case R.id.tv_full_time:
tv_full_time.setTextColor(getResources().getColor(R.color.basecolor));
job_type=1;
adapter=new JobAdapter(getActivity(), full_job_Data);
lv_job.setAdapter(adapter);
break;
}
}
//改变字体的背景颜色
public void setTextColor() {
tv_part_job.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_full_time.setTextColor(getResources().getColor(R.color.text_color_primary));
}
}

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@SuppressLint("NewApi")
public class OneFragment extends Fragment implements OnClickListener {
private View rootView;
private TextView tv_part_job,tv_full_time;
private ListView lv_job;
private JobAdapter adapter;
//创建两个hashmap的list类型用于存放全职跟兼职的数据
private List<HashMap<String, Object>> part_job_Data;
private List<HashMap<String, Object>> full_job_Data;
private int job_type=0;//0代表兼职，1代表全职
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater.inflate(R.layout.fragment_one, container, false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initData();
initView();
//进入职位详情
lv_job.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapter, View arg1, int position,
long arg3) {
Intent intent=new Intent(getActivity(), JobDetailActivity.class);
Bundle data = new Bundle();
data.putSerializable("job", (HashMap<String, Object>)adapter.getItemAtPosition(position));
intent.putExtras(data);
startActivity(intent);
}
});
}
private void initData(){
part_job_Data=new ArrayList<HashMap<String, Object>>();
full_job_Data=new ArrayList<HashMap<String, Object>>();
//通过URL去UserController中使用findjianzhi方法获取数据库中的兼职数据并返回。
OkHttpUtils.get("http://172.21.254.44:8080/portal/findjianzhi.do"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name",job.get(i).getPartjobname());
hashMap.put("jobType", "兼职");
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
part_job_Data.add(hashMap);
}
//Looper.loop();
}
});
//通过URL去UserController中使用findquanzhi方法获取数据库中的兼职数据并返回。
OkHttpUtils.get("http://172.21.254.44:8080/portal/findquanzhi.do"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
hashMap.put("jobType", "全职");
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime().toString());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
full_job_Data.add(hashMap);
}
//Looper.loop();
}
});
}
private void initView() {
tv_part_job=(TextView) rootView.findViewById(R.id.tv_part_job);
tv_full_time=(TextView) rootView.findViewById(R.id.tv_full_time);
lv_job=(ListView) rootView.findViewById(R.id.lv_job);
tv_part_job.setOnClickListener(this);
tv_full_time.setOnClickListener(this);
//刚开始进入OneFragment时，先通过adapter将兼职的信息放入listview中
adapter=new JobAdapter(getActivity(), part_job_Data);
lv_job.setAdapter(adapter);
}
//通过点击事件来切换兼职跟全职信息
@Override
public void onClick(View v) {
setTextColor();
switch (v.getId()) {
case R.id.tv_part_job:
tv_part_job.setTextColor(getResources().getColor(R.color.basecolor));
job_type=0;
//运用adapter让listview跟item联系起来。
adapter=new JobAdapter(getActivity(), part_job_Data);
lv_job.setAdapter(adapter);
break;
case R.id.tv_full_time:
tv_full_time.setTextColor(getResources().getColor(R.color.basecolor));
job_type=1;
adapter=new JobAdapter(getActivity(), full_job_Data);
lv_job.setAdapter(adapter);
break;
}
}
//改变字体的背景颜色
public void setTextColor() {
tv_part_job.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_full_time.setTextColor(getResources().getColor(R.color.text_color_primary));
}
}

2.其中有两个URL，分别请求了UserController中关于兼职跟全职的请求

复制代码

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@RequestMapping(value = "findjianzhi.do")
public List<Jianzhi> findjianzhi(){
List<Jianzhi> jianzhi = iJianzhiService.FindAll();
return jianzhi;
}
@RequestMapping(value = "findquanzhi.do")
public List<Jianzhi> findquanzhi(){
List<Jianzhi> quanzhi = iJianzhiService.FindQz();
return quanzhi;
}

3.Controller中调用的两个service请求在对应的IJianzhiService中定义

复制代码

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List<Jianzhi> FindAll();
List<Jianzhi> FindQz();

4.在impl中重写上面service的两种方法

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@Override
public List<Jianzhi> FindAll() {
List<Jianzhi> jianzhi = jianzhiMapper.findbyall();
return
jianzhi;
}
@Override
public List<Jianzhi> FindQz() {
List<Jianzhi> quanzhi = jianzhiMapper.findbyqz();
return quanzhi;
}

5.impl中调用的mapper方法在JianzhiMapper中定义，并通过mapper.xml返回数据

复制代码

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List<Jianzhi> findbyall();
List<Jianzhi> findbyqz();

6.mapper.xml连接数据库返回数据

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<select id="findbyall" resultType="com.example.androidtest.pojo.Jianzhi" parameterType="string">
select id,partjobname,partjobimg,partjobcompany,partjobtime
,partjobsalary,partjobpeople,partjobaddress,partjobpayway
from jianzhi
</select>
<select id="findbyqz" resultType="com.example.androidtest.pojo.Jianzhi" parameterType="string">
select id,partjobname,partjobimg,partjobcompany,partjobtime,partjobsalary,partjobpeople
,partjobaddress,partjobpayway
from quanzhi
</select>

IV消息列表

1.编辑TowFragment界面用于显示消息列表

复制代码

@SuppressLint("NewApi")
public class TwoFragment extends Fragment implements View.OnClickListener {
private View rootView;
private TextView tv_start, tv_going, tv_over;
private ListView lv_task;
private JobAdapter adapter;
//用于显示三种消息的三个list
private List<HashMap<String, Object>> start_Data;
private List<HashMap<String, Object>> going_Data;
private List<HashMap<String, Object>> over_Data;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater
.inflate(R.layout.fragment_two, container, false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initData();
initView();
lv_task.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
}
});
}
private void initData(){
start_Data=new ArrayList<HashMap<String,Object>>();
//已录用
going_Data=new ArrayList<HashMap<String,Object>>();
//未录用
over_Data=new ArrayList<HashMap<String,Object>>();
//已报名
//调用不同的cond的URL请求，将三种cond放入三个list中。
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已录用"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
start_Data.add(hashMap);
}
//Looper.loop();
}
}
});
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=未录用"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
going_Data.add(hashMap);
}
//Looper.loop();
}
}
});
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已报名"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
over_Data.add(hashMap);
}
//Looper.loop();
}
}
});
}
private void initView() {
tv_start = (TextView) rootView.findViewById(R.id.tv_start);
tv_going = (TextView) rootView.findViewById(R.id.tv_going);
tv_over = (TextView) rootView.findViewById(R.id.tv_over);
lv_task = (ListView) rootView.findViewById(R.id.lv_task);
tv_start.setOnClickListener(this);
tv_going.setOnClickListener(this);
tv_over.setOnClickListener(this);
adapter=new JobAdapter(getActivity(), start_Data);
lv_task.setAdapter(adapter);
//
System.out.println(CommonData.user_hashMap1.get("phone"));
}
@Override
public void onClick(View v) {
setTextColor();
switch (v.getId()) {
case R.id.tv_start:
adapter=new JobAdapter(getActivity(), start_Data);
lv_task.setAdapter(adapter);
tv_start.setTextColor(getResources().getColor(R.color.basecolor));
break;
case R.id.tv_going:
adapter=new JobAdapter(getActivity(), going_Data);
lv_task.setAdapter(adapter);
tv_going.setTextColor(getResources().getColor(R.color.basecolor));
break;
case R.id.tv_over:
adapter=new JobAdapter(getActivity(), over_Data);
lv_task.setAdapter(adapter);
tv_over.setTextColor(getResources().getColor(R.color.basecolor));
break;
}
}
//改变字体的背景颜色
public void setTextColor() {
tv_start.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_going.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_over.setTextColor(getResources().getColor(R.color.text_color_primary));
}
}

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@SuppressLint("NewApi")
public class TwoFragment extends Fragment implements View.OnClickListener {
private View rootView;
private TextView tv_start, tv_going, tv_over;
private ListView lv_task;
private JobAdapter adapter;
//用于显示三种消息的三个list
private List<HashMap<String, Object>> start_Data;
private List<HashMap<String, Object>> going_Data;
private List<HashMap<String, Object>> over_Data;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater
.inflate(R.layout.fragment_two, container, false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initData();
initView();
lv_task.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
}
});
}
private void initData(){
start_Data=new ArrayList<HashMap<String,Object>>();
//已录用
going_Data=new ArrayList<HashMap<String,Object>>();
//未录用
over_Data=new ArrayList<HashMap<String,Object>>();
//已报名
//调用不同的cond的URL请求，将三种cond放入三个list中。
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已录用"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
start_Data.add(hashMap);
}
//Looper.loop();
}
}
});
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=未录用"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
going_Data.add(hashMap);
}
//Looper.loop();
}
}
});
OkHttpUtils.get("http://172.21.254.44:8080/portal/list.do?phone="+ CommonData.user_hashMap1.get("phone")+"&cond=已报名"
, new OkHttpCallback() {
@Override
public void onFinish(String status, String msg) {
super.onFinish(status, msg);
//解析数据
Gson gson = new Gson();
List<Jianzhi> job = gson.fromJson(msg, new TypeToken<List<Jianzhi>>() {}.getType());
//Looper.prepare();
if (job.size() > 0) {
for (int i = 0; i < job.size(); i++) {
HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("id", job.get(i).getId());
hashMap.put("img", R.drawable.ic_launcher);
hashMap.put("name", job.get(i).getPartjobname());
if (job.get(i).getId() < 100) {
hashMap.put("jobType", "兼职");
} else {
hashMap.put("jobType", "全职");
}
hashMap.put("company", job.get(i).getPartjobcompany());
hashMap.put("time", job.get(i).getPartjobtime());
hashMap.put("salary", job.get(i).getPartjobsalary());
hashMap.put("people", job.get(i).getPartjobpeople());
hashMap.put("address", job.get(i).getPartjobaddress());
hashMap.put("payWay", job.get(i).getPartjobpayway());
over_Data.add(hashMap);
}
//Looper.loop();
}
}
});
}
private void initView() {
tv_start = (TextView) rootView.findViewById(R.id.tv_start);
tv_going = (TextView) rootView.findViewById(R.id.tv_going);
tv_over = (TextView) rootView.findViewById(R.id.tv_over);
lv_task = (ListView) rootView.findViewById(R.id.lv_task);
tv_start.setOnClickListener(this);
tv_going.setOnClickListener(this);
tv_over.setOnClickListener(this);
adapter=new JobAdapter(getActivity(), start_Data);
lv_task.setAdapter(adapter);
//
System.out.println(CommonData.user_hashMap1.get("phone"));
}
@Override
public void onClick(View v) {
setTextColor();
switch (v.getId()) {
case R.id.tv_start:
adapter=new JobAdapter(getActivity(), start_Data);
lv_task.setAdapter(adapter);
tv_start.setTextColor(getResources().getColor(R.color.basecolor));
break;
case R.id.tv_going:
adapter=new JobAdapter(getActivity(), going_Data);
lv_task.setAdapter(adapter);
tv_going.setTextColor(getResources().getColor(R.color.basecolor));
break;
case R.id.tv_over:
adapter=new JobAdapter(getActivity(), over_Data);
lv_task.setAdapter(adapter);
tv_over.setTextColor(getResources().getColor(R.color.basecolor));
break;
}
}
//改变字体的背景颜色
public void setTextColor() {
tv_start.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_going.setTextColor(getResources().getColor(R.color.text_color_primary));
tv_over.setTextColor(getResources().getColor(R.color.text_color_primary));
}
}

2.根据URL请求，在UserController中接收，并调用list方法处理

复制代码

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 /*
利用findPhCon方法返回一个关于id的列表，然后遍历这个列表里的id，根据id去寻找对应的工作。
*/
@RequestMapping(value = "list.do")
public List<Jianzhi> list(String phone,String cond){
List<Integer> list1 = iJianzhiService.findbyPhCon(phone,cond);
ArrayList<Jianzhi> arrayList = new ArrayList<Jianzhi>();
for(int i=0;i<list1.size();i++){
if(list1.get(i)<100){
Jianzhi jianzhi = iJianzhiService.selectByid(list1.get(i));
arrayList.add(jianzhi);
}else{
Jianzhi quanzhi = iJianzhiService.selectByquanzhi(list1.get(i));
arrayList.add(quanzhi);
}
}
return
arrayList;
}

3.在service中定义findbyPhCon来根据phone跟cond查找对应的id，并根据id的大小来调用不同的findbyid方法

复制代码

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//通过电话号码跟录取信息来获取id列表
List<Integer> findbyPhCon(String phone,String cond);
//通过id找兼职
Jianzhi
selectByid(int id);
//通过id找全职
Jianzhi selectByquanzhi(int id);

4.在impl中重写上述的三种方法

复制代码

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@Override
public List<Integer> findbyPhCon(String phone,String cond) {
Userwork userwork = new Userwork(phone,cond);
List<Integer> id = jianzhiMapper.findbyPhCon(userwork);
return id;
}
@Override
public Jianzhi
selectByid(int id) {
return jianzhiMapper.selectByid(id) ;
}
@Override
public Jianzhi
selectByquanzhi(int id) {
return jianzhiMapper.selectByquanzhi(id) ;
}

5.在jianzhimapper中定义上述的三种方法

复制代码

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 //根据电话跟是否录用来找id
List<Integer>
findbyPhCon(Userwork userwork);
//根据id来找工作
Jianzhi selectByid(int id);
Jianzhi
selectByquanzhi(int id);

V 我的功能

1.编辑ThreeFragment用于显示我的界面

复制代码

@SuppressLint("NewApi")
public class ThreeFragment extends Fragment implements View.OnClickListener {
private View rootView;
private TextView tv_person, tv_about, tv_loginout, tv_nickName;
private ImageView iv_head;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater.inflate(R.layout.fragment_three, container,
false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initView();
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
if (CommonData.isLogin)
//如果登录了就将名字显示出来
tv_nickName.setText(CommonData.user_hashMap1.get("name").toString());
}
private void initView() {
tv_person = (TextView) rootView.findViewById(R.id.tv_person);
tv_about = (TextView) rootView.findViewById(R.id.tv_about);
tv_loginout = (TextView) rootView.findViewById(R.id.tv_loginout);
tv_nickName = (TextView) rootView.findViewById(R.id.tv_nickName);
iv_head=(ImageView)rootView.findViewById(R.id.iv_head);
tv_person.setOnClickListener(this);
tv_about.setOnClickListener(this);
tv_loginout.setOnClickListener(this);
iv_head.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.iv_head:
if(CommonData.isLogin){
Intent intent = new Intent(getActivity(), PersonActivity.class);
startActivity(intent);
}else{
Intent intent=new Intent(getActivity(), LoginActivity.class);
startActivity(intent);
//
Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
}
break;
case R.id.tv_person:
if(CommonData.isLogin){
Intent intent = new Intent(getActivity(), PersonActivity.class);
startActivity(intent);
}else{
Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
}
break;
case R.id.tv_about:
Intent intent = new Intent(getActivity(), AboutActivity.class);
startActivity(intent);
break;
case R.id.tv_loginout:
CommonData.isLogin = false;
CommonData.user_hashMap=null;
tv_nickName.setText("未登录");
Toast.makeText(getActivity(), "退出登录！", Toast.LENGTH_SHORT).show();
break;
}
}
}

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@SuppressLint("NewApi")
public class ThreeFragment extends Fragment implements View.OnClickListener {
private View rootView;
private TextView tv_person, tv_about, tv_loginout, tv_nickName;
private ImageView iv_head;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (rootView == null) {
rootView = inflater.inflate(R.layout.fragment_three, container,
false);
}
return rootView;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initView();
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
if (CommonData.isLogin)
//如果登录了就将名字显示出来
tv_nickName.setText(CommonData.user_hashMap1.get("name").toString());
}
private void initView() {
tv_person = (TextView) rootView.findViewById(R.id.tv_person);
tv_about = (TextView) rootView.findViewById(R.id.tv_about);
tv_loginout = (TextView) rootView.findViewById(R.id.tv_loginout);
tv_nickName = (TextView) rootView.findViewById(R.id.tv_nickName);
iv_head=(ImageView)rootView.findViewById(R.id.iv_head);
tv_person.setOnClickListener(this);
tv_about.setOnClickListener(this);
tv_loginout.setOnClickListener(this);
iv_head.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.iv_head:
if(CommonData.isLogin){
Intent intent = new Intent(getActivity(), PersonActivity.class);
startActivity(intent);
}else{
Intent intent=new Intent(getActivity(), LoginActivity.class);
startActivity(intent);
//
Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
}
break;
case R.id.tv_person:
if(CommonData.isLogin){
Intent intent = new Intent(getActivity(), PersonActivity.class);
startActivity(intent);
}else{
Toast.makeText(getActivity(), "用户还未登录！", Toast.LENGTH_SHORT).show();
}
break;
case R.id.tv_about:
Intent intent = new Intent(getActivity(), AboutActivity.class);
startActivity(intent);
break;
case R.id.tv_loginout:
CommonData.isLogin = false;
CommonData.user_hashMap=null;
tv_nickName.setText("未登录");
Toast.makeText(getActivity(), "退出登录！", Toast.LENGTH_SHORT).show();
break;
}
}
}

最后

以上就是鲤鱼可乐最近收集整理的关于Spring+安卓项目开发。已成功一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架二.Adroid搭建三.安卓中实现的前端功能，以及IDEA中处理的后端请求的全部内容，更多相关Spring+安卓项目开发。已成功一、IDEA中使用SpringBoot来管理后端内容请搜索靠谱客的其他文章。

本图文内容来源于网友提供，作为学习参考使用，或来自网络收集整理，版权属于原作者所有。

本文分类：spring
浏览次数：169 次浏览
发布日期：2023-12-15 16:35:06
本文链接：https://www.kaopuke.com/article/k-p-k_13_u_23_o_2_fx_14__7__6_0.html

Spring+安卓项目开发。已成功一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架二.Adroid搭建三.安卓中实现的前端功能，以及IDEA中处理的后端请求

文章目录

一、IDEA中使用SpringBoot来管理后端的请求，IDEA中的基本框架

1.Spring整合mybatis

1.进入达内将SSM框架需要的依赖导入

2.创建yml文件

2.创建数据库并使用逆向工程导入

1.建立需要的数据库

2.在resources文件下创建使用generatorConfig.xml文件进行逆向工程配置

3.封装高可用对象ServerResponse对象

1.封装一个ServerResponse类，用于返回状态，信息，提示

2.封装一个enum类ResponseCode，用于放状态码跟状态信息

3.建立一个DateUtil时间化工具类

二.Adroid搭建

1.安卓连上网，跟IDEA产生交互

1.首先需要添加两端代码在对应module的build.gradle中，让我们可用在后续使用OkHttp协议获取URL数据

2.在utils包下添加OkHttpCallback和OkhttpUtils文件

3.头文件xml中进行操作

4.在res中创建一个xml包，包下包含network_config.xml文件

2.建立一个类，其中含有Static全局变量方便后续使用

3.编写Baseadapter类，用来使得listview以一个layout为样例实现

4.碎片化管理Fragment，实现类似于ajax的效果。

1.创建统一管理的main

三.安卓中实现的前端功能，以及IDEA中处理的后端请求

I.登录功能(对应LoginActivity与其的layout界面以及IDEA中的接口处理)，以下都只展示Activity的代码

1.安卓端先创建好登录的界面，以下为LoginActivity代码详解

2.由于URL触发login.do请求，将在IDEA中处理

1.在Controller层中的UserController中接收login.do的request请求

2.Service层给调用的IUserService

3.impl重写IUserService

4.mapper层中的userMapper给调用了方法

5.usermapper引用了UserMapper.xml来使用数据库查找数据

II 注册功能

1.创建RegisterAcitivity，用于将注册的信息传到URL上

2.URL触发了register请求，在IDEA中的UserController处理请求

3.在IUserService接口中定义了controller中的方法，并且利用impl重写使用

4.在mapper层接口中定义上面的各种方法，并且利用mapper.xml查找数据返回结果

III 工作功能

1.进入OneFragment界面

2.其中有两个URL，分别请求了UserController中关于兼职跟全职的请求

3.Controller中调用的两个service请求在对应的IJianzhiService中定义

4.在impl中重写上面service的两种方法

5.impl中调用的mapper方法在JianzhiMapper中定义，并通过mapper.xml返回数据

6.mapper.xml连接数据库返回数据

IV消息列表

1.编辑TowFragment界面用于显示消息列表

2.根据URL请求，在UserController中接收，并调用list方法处理

3.在service中定义findbyPhCon来根据phone跟cond查找对应的id，并根据id的大小来调用不同的findbyid方法

4.在impl中重写上述的三种方法

5.在jianzhimapper中定义上述的三种方法

V 我的功能

1.编辑ThreeFragment用于显示我的界面

最后

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