一、Android前端实现
新建一个login的项目，主要的几个文件在这里
1、gradle引入OKhttp3依赖
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2implementation 'com.squareup.okhttp3:okhttp:3.14.7' implementation 'com.squareup.okio:okio:1.17.5'
2、activity_main.xml布局文件
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72<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <EditText android:id="@+id/username" android:layout_width="wrap_content" android:layout_height="wrap_content" android:hint="用户名" android:textSize="34sp" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.051" /> <EditText android:id="@+id/password" android:layout_width="wrap_content" android:layout_height="wrap_content" android:hint="密码" android:textSize="34sp" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/username" app:layout_constraintVertical_bias="0.067" /> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:onClick="register" android:text="注册" android:textSize="24sp" app:backgroundTint="#E91E63" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.501" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/password" app:layout_constraintVertical_bias="0.058" /> <Button android:id="@+id/getUser" android:layout_width="wrap_content" android:layout_height="wrap_content" android:onClick="getUser" android:text="获取" android:textSize="24sp" app:backgroundTint="#E91E63" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.501" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/button3" app:layout_constraintVertical_bias="0.174" /> <Button android:id="@+id/button3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="登录" android:textSize="24sp" app:backgroundTint="#E91E63" android:onClick="login" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.501" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/button" app:layout_constraintVertical_bias="0.113" /> </androidx.constraintlayout.widget.ConstraintLayout>
3、AndroidManifest.xml配置文件
这里需要加上网络请求权限，添加网络权限的时候注意：在res目录下新建xml目录，创建network_security_config.xml文件
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4<?xml version="1.0" encoding="utf-8"?> <network-security-config> <base-config cleartextTrafficPermitted="true" /> </network-security-config>
并在配置文件中加入这行代码：
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1android:networkSecurityConfig="@xml/network_security_config"
完整的AndroidManifest.xml文件如下
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25<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.login"> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:networkSecurityConfig="@xml/network_security_config" android:supportsRtl="true" android:theme="@style/Theme.Login"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
4、创建User实体类
新建entity目录创建User实体类。注意这里我是根据后端数据库的字段创建的，在实现登录注册的时候只需要id,username,password 几个基础的字段就行，这里我比较多，读者可以自行忽略。
User.java
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119package com.example.login.entity; public class User { private Integer userId; private String userName; private String userPassword; private String currentVersion; private String latestVersion; private String updateDescription; private String headPortrait; private String nickName; private String vipTime; private String userCategory; private String registerDate; public User(Integer userId, String userName, String userPassword, String currentVersion, String latestVersion, String updateDescription, String headPortrait, String nickName, String vipTime, String userCategory, String registerDate) { this.userId = userId; this.userName = userName; this.userPassword = userPassword; this.currentVersion = currentVersion; this.latestVersion = latestVersion; this.updateDescription = updateDescription; this.headPortrait = headPortrait; this.nickName = nickName; this.vipTime = vipTime; this.userCategory = userCategory; this.registerDate = registerDate; } public User() { } public Integer getUserId() { return userId; } public void setUserId(Integer userId) { this.userId = userId; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getUserPassword() { return userPassword; } public void setUserPassword(String userPassword) { this.userPassword = userPassword; } public String getCurrentVersion() { return currentVersion; } public void setCurrentVersion(String currentVersion) { this.currentVersion = currentVersion; } public String getLatestVersion() { return latestVersion; } public void setLatestVersion(String latestVersion) { this.latestVersion = latestVersion; } public String getUpdateDescription() { return updateDescription; } public void setUpdateDescription(String updateDescription) { this.updateDescription = updateDescription; } public String getHeadPortrait() { return headPortrait; } public void setHeadPortrait(String headPortrait) { this.headPortrait = headPortrait; } public String getNickName() { return nickName; } public void setNickName(String nickName) { this.nickName = nickName; } public String getVipTime() { return vipTime; } public void setVipTime(String vipTime) { this.vipTime = vipTime; } public String getUserCategory() { return userCategory; } public void setUserCategory(String userCategory) { this.userCategory = userCategory; } public String getRegisterDate() { return registerDate; } public void setRegisterDate(String registerDate) { this.registerDate = registerDate; } }
LoginUser.java
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28public class LoginUser { private String userName; private String userPassword; public LoginUser(String userName, String userPassword) { this.userName = userName; this.userPassword = userPassword; } public LoginUser() { } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getUserPassword() { return userPassword; } public void setUserPassword(String userPassword) { this.userPassword = userPassword; } }
5、MainActivity.java
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161package com.example.login; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import com.example.login.entity.User; import org.json.JSONException; import org.json.JSONObject; import java.io.IOException; import okhttp3.Call; import okhttp3.Callback; import okhttp3.MediaType; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; public class MainActivity extends AppCompatActivity { private EditText username; private EditText password; private User user; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); username = findViewById(R.id.username); password = findViewById(R.id.password); } public void register(View view) { user = new User(); user.setUserName(username.getText().toString()); user.setUserPassword(password.getText().toString()); Log.d("whqusername",username.getText().toString()); Log.d("whqpassword",password.getText().toString()); new Thread(new Runnable() { @Override public void run() { MediaType JSON = MediaType.parse("application/json;charset=utf-8"); JSONObject jsonObject = new JSONObject(); OkHttpClient httpClient = new OkHttpClient(); try { jsonObject.put("userId",10); jsonObject.put("userName",user.getUserName()); jsonObject.put("userPassword",user.getUserPassword()); jsonObject.put("currentVersion",null); jsonObject.put("latestVersion",null); jsonObject.put("updateDescription",null); jsonObject.put("headPortrait",null); jsonObject.put("nickName",user.getUserName()); jsonObject.put("vipTime",null); jsonObject.put("userCategory",null); jsonObject.put("registerDate",null); } catch (JSONException e) { e.printStackTrace(); } RequestBody requestBody = RequestBody.create(JSON, String.valueOf(jsonObject)); String url = "http://ip:8001/server/user/addUser/"; Request request = new Request.Builder() .url(url) .post(requestBody) .build(); Call call = httpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.d("whq","失败了"); } @Override public void onResponse(Call call, Response response) throws IOException { Log.d("whq",response.toString()+"------------------"); Log.d("whq",response.body().toString()+"------------------"); } }); } }).start(); } public void getUser(View view) { OkHttpClient httpClient = new OkHttpClient(); String url = "http://ip:8001/server/user/getAllUserName"; Request getRequest = new Request.Builder() .url(url) .get() .build(); Call call = httpClient.newCall(getRequest); new Thread(new Runnable() { @Override public void run() { try { //同步请求，要放到子线程执行 Response response = call.execute(); Log.i("whq+getAllUserName", "okHttpGet run: response:"+ response.body().string()); } catch (IOException e) { e.printStackTrace(); } } }).start(); } public void login(View view) { loginUser = new LoginUser(); loginUser.setUserName(username.getText().toString()); loginUser.setUserPassword(password.getText().toString()); new Thread(new Runnable() { @Override public void run() { MediaType JSON = MediaType.parse("application/json;charset=utf-8"); JSONObject jsonObject = new JSONObject(); OkHttpClient httpClient = new OkHttpClient(); try { jsonObject.put("userName",loginUser.getUserName()); jsonObject.put("userPassword",MD5.encrypt(loginUser.getUserPassword())); } catch (JSONException e) { e.printStackTrace(); } RequestBody requestBody = RequestBody.create(JSON, String.valueOf(jsonObject)); String url = "http://ip:8001/server/user/login"; Request request = new Request.Builder() .url(url) .post(requestBody) .build(); Call call = httpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.d("whq登录","失败了"); } @Override public void onResponse(Call call, Response response) throws IOException { String MyResult = response.body().string(); Log.d("whq登录",response+"---------response---------"); Log.d("whq登录",response.message()+"---------message---------"); Log.d("whq登录",response.body().toString()+"------------------"); Log.d("whq登录",MyResult+"-----------MyResult-------"); } }); } }).start(); } }
到这里就实现了Android的前端实现。
二、数据库
数据库就是简单的一个user表
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23SET NAMES utf8mb4; SET FOREIGN_KEY_CHECKS = 0; -- ---------------------------- -- Table structure for user -- ---------------------------- DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `userId` int(11) NOT NULL AUTO_INCREMENT, `userName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `userPassword` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `currentVersion` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `latestVersion` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `updateDescription` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `headPortrait` mediumblob NULL, `nickName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `vipTime` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `userCategory` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT 'normal', `registerDate` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, PRIMARY KEY (`userId`, `userName`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 13 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = DYNAMIC; SET FOREIGN_KEY_CHECKS = 1;
三、SpringBoot后端搭建
后端搭建用到的是SSM框架
1、新建一个springboot项目，添加依赖
pom.xml文件。这里有mybatis-plus+swagger+velocity，使用了代码生成器
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76<properties> <java.version>1.8</java.version> <mybatis-plus.version>3.0.5</mybatis-plus.version> <swagger.version>2.7.0</swagger.version> <jodatime.version>2.10.1</jodatime.version> <poi.version>3.17</poi.version> <httpclient.version>4.5.1</httpclient.version> <gson.version>2.8.2</gson.version> <velocity.version>2.0</velocity.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--Spring Cloud--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Hoxton.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> <!--mybatis-plus 持久层--> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatis-plus.version}</version> </dependency> <!-- velocity 模板引擎, Mybatis Plus 代码生成器需要 --> <dependency> <groupId>org.apache.velocity</groupId> <artifactId>velocity-engine-core</artifactId> <version>${velocity.version}</version> </dependency> <!--swagger--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>${swagger.version}</version> </dependency> <!--swagger ui--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>${swagger.version}</version> </dependency> <!--日期时间工具--> <dependency> <groupId>joda-time</groupId> <artifactId>joda-time</artifactId> <version>${jodatime.version}</version> </dependency> <!--mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!--lombok用来简化实体类：需要安装lombok插件--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies>
2、application.properties文件
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24# 服务端口 server.port=8001 # 服务名 spring.application.name=heartrate # 环境设置：dev、test、prod spring.profiles.active=dev # mysql数据库连接 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://ip:3310/heartrate?serverTimezone=GMT%2B8&useSSL=false spring.datasource.username=root spring.datasource.password=123456 #返回json的全局时间格式 spring.jackson.date-format=yyyy-MM-dd HH:mm:ss spring.jackson.time-zone=GMT+8 ##mybatis日志//要使用logback日志，就需要注释掉 #mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl #配置mapper xml文件的路径 mybatis-plus.mapper-locations=classpath:com/atguigu/eduservice/mapper/xml/*.xml
这里的数据库连接发现我是使用3310端口，因为我的服务器是使用docker创建数据库的。请自行查看我之前的文章。
3、CodeGenerator.java代码生成器
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79import com.baomidou.mybatisplus.annotation.DbType; import com.baomidou.mybatisplus.annotation.IdType; import com.baomidou.mybatisplus.generator.AutoGenerator; import com.baomidou.mybatisplus.generator.config.DataSourceConfig; import com.baomidou.mybatisplus.generator.config.GlobalConfig; import com.baomidou.mybatisplus.generator.config.PackageConfig; import com.baomidou.mybatisplus.generator.config.StrategyConfig; import com.baomidou.mybatisplus.generator.config.rules.DateType; import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy; import org.junit.Test; /** * @author ahuwhq * @since 2021/7/27 */ public class CodeGenerator { @Test public void run() { // 1、创建代码生成器 AutoGenerator mpg = new AutoGenerator(); // 2、全局配置 GlobalConfig gc = new GlobalConfig(); String projectPath = System.getProperty("user.dir"); //这里改成自己的目录 gc.setOutputDir("E:\LaboratoryCode\service\server" + "/src/main/java"); gc.setAuthor("ahuwhq"); gc.setOpen(false); //生成后是否打开资源管理器 gc.setFileOverride(false); //重新生成时文件是否覆盖 gc.setServiceName("%sService"); //去掉Service接口的首字母I gc.setIdType(IdType.ID_WORKER_STR); //主键策略 gc.setDateType(DateType.ONLY_DATE);//定义生成的实体类中日期类型 gc.setSwagger2(true);//开启Swagger2模式 mpg.setGlobalConfig(gc); // 3、数据源配置 DataSourceConfig dsc = new DataSourceConfig(); //这里的数据库改为自己的 dsc.setUrl("jdbc:mysql://ip:3310/heartrate?serverTimezone=GMT%2B8"); dsc.setDriverName("com.mysql.cj.jdbc.Driver"); dsc.setUsername("root"); dsc.setPassword("123456"); dsc.setDbType(DbType.MYSQL); mpg.setDataSource(dsc); // 4、包配置 PackageConfig pc = new PackageConfig(); pc.setParent("com.message"); pc.setModuleName("server"); //模块名 pc.setController("controller"); pc.setEntity("entity"); pc.setService("service"); pc.setMapper("mapper"); mpg.setPackageInfo(pc); // 5、策略配置 StrategyConfig strategy = new StrategyConfig(); //这里是对应的数据库的表 strategy.setInclude("user"); strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略 strategy.setTablePrefix(pc.getModuleName() + "_"); //生成实体时去掉表前缀 strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略 strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作 strategy.setRestControllerStyle(true); //restful api风格控制器 strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符 mpg.setStrategy(strategy); // 6、执行 mpg.execute(); } }
点击运行就会自动生成文件
4、添加config目录
这里的config目录代码生成器没有帮我们生成，我们添加这个目录主要是想使用swagger测试（SwaggerConfig），并且代码生成器生成文件之后，我们需要配置一下能扫描到mapper文件（ServerConfig）
ServerConfig.java
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30package com.message.server.config; import com.baomidou.mybatisplus.core.injector.ISqlInjector; import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector; import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor; import org.mybatis.spring.annotation.MapperScan; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration @MapperScan("com.message.server.mapper") public class ServerConfig { /** * 逻辑删除插件 */ @Bean public ISqlInjector sqlInjector() { return new LogicSqlInjector(); } /** * 分页插件 */ @Bean public PaginationInterceptor paginationInterceptor() { return new PaginationInterceptor(); } }
SwaggerConfig.java
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35import com.google.common.base.Predicates; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import springfox.documentation.builders.ApiInfoBuilder; import springfox.documentation.builders.PathSelectors; import springfox.documentation.service.ApiInfo; import springfox.documentation.service.Contact; import springfox.documentation.spi.DocumentationType; import springfox.documentation.spring.web.plugins.Docket; import springfox.documentation.swagger2.annotations.EnableSwagger2; @Configuration//配置类 @EnableSwagger2//swagger2注解 public class SwaggerConfig { @Bean public Docket webApiConfig(){ return new Docket(DocumentationType.SWAGGER_2) .groupName("webApi") .apiInfo(webApiInfo()) .select() // .paths(Predicates.not(PathSelectors.regex("/admin/.*"))) .paths(Predicates.not(PathSelectors.regex("/error.*"))) .build(); } private ApiInfo webApiInfo(){ return new ApiInfoBuilder() .title("网站-课程中心API文档") .description("本文档描述了课程中心微服务接口定义") .version("1.0") .contact(new Contact("java", "http://ahuwhq.com", "ahuwhq@163.com")) .build(); } }
5、Controller层实现 UserController.java
这里我实现了好多种方法，不仅是登录注册，但是Android前段我们只用到登录注册和获取全部用户
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96import com.message.server.entity.User; import com.message.server.entity.vo.UserAll; import com.message.server.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import java.util.List; /** * <p> * 前端控制器 * </p> * * @author ahuwhq * @since 2021-07-27 */ @RestController @RequestMapping("/server/user") public class UserController { //访问地址：http://ip:8001/server/user/findAll 最终部署到服务器时使用这个来访问 //访问地址：http://localhost:8001/server/user/findAll 这是本地测试地址也是Swagger地址 @Autowired private UserService userService; /** * 查询所有的用户 * @return */ @GetMapping("getAllUsers") public List<User> findAllUser(){ //调用方法查询 List<User> list = userService.list(null); return list; } /** * 添加用户,注册功能 * @param user * @return */ @PostMapping("addUser") public Boolean addUser(@RequestBody User user){ boolean save = userService.save(user); return save; } /** * 获取所有用户名 */ @GetMapping("getAllUserName") public List<UserAll> getAllUserName(){ List<UserAll> userNamelist = userService.getAllUserName(); return userNamelist; } /** * 根据用户ID查询用户的昵称 * @param id * @return */ @GetMapping("getUserNickname/{id}") public String getUserNickname(@PathVariable Integer id){ User user = userService.getById(id); String nickName = user.getNickName(); return nickName; } /** *修改密码 * @param userName * @return */ @PostMapping("changePassword/{userName}/{password}") public Boolean changePassword(@PathVariable String userName, @PathVariable String password){ Boolean result = userService.changePassword(userName,password); return result; } /** * 用户的登录功能PostMapping * @param loginuser * @return */ @PostMapping("login") public R login(@RequestBody loginUser loginuser){ String token = userService.login(loginuser); if (token == "wrong Password"){ return R.error().data("result",token); }else{ return R.ok().data("result",token); } } }
这里用到了几个文件R.java，ResultCode.java,MyException.java
R.java
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74//统一返回结果 import io.swagger.annotations.ApiModelProperty; import lombok.Data; import java.util.HashMap; import java.util.Map; @Data public class R { @ApiModelProperty(value = "是否成功") private Boolean success; @ApiModelProperty(value = "返回码") private Integer code; @ApiModelProperty(value = "返回消息") private String message; @ApiModelProperty(value = "返回数据") private Map<String, Object> data = new HashMap<String, Object>(); //构造方法私有化 private R(){} //链式编程 //成功静态方法 public static R ok(){ R r = new R(); r.setSuccess(true); r.setCode(ResultCode.SUCCESS); r.setMessage("成功"); return r; } //失败静态方法 public static R error(){ R r = new R(); r.setSuccess(false); r.setCode(ResultCode.ERROR); r.setMessage("失败"); return r; } public R success(Boolean success){ this.setSuccess(success); return this; } public R message(String message){ this.setMessage(message); return this; } public R code(Integer code){ this.setCode(code); return this; } public R data(String key, Object value){ this.data.put(key, value); return this; } public R data(Map<String, Object> map){ this.setData(map); return this; } }
ResultCode.java
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6public interface ResultCode { public static Integer SUCCESS = 20000;//成功 public static Integer ERROR = 20001;//失败 }
MyException.java
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14import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; @Data @AllArgsConstructor//生成有参构造方法 @NoArgsConstructor//生成无参构造方法 public class MyException extends RuntimeException{ private Integer code;//状态码 private String msg;//异常信息 }
5、UserService接口
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23public interface UserService extends IService<User> { /** * 获取所有用户名 * @return */ List<UserAll> getAllUserName(); /** * 修改密码 * @param userName * @return */ Boolean changePassword(String userName,String password); /** * 用户的登录功能 * @param userName * @param password * @return */ Boolean login(String userName, String password); }
6、UserServiceImpl.java
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78public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService { @Autowired private UserService userService; /** * 获取所有用户名 */ @Override public List<UserAll> getAllUserName() { //创建一个构造器 QueryWrapper<User> wrapper = new QueryWrapper<>(); //查询所有的userName wrapper.eq("userName",0); //重新封装一个UserAll的类，专门来查询所有用户名 List<User> users = baseMapper.selectList(wrapper); List<UserAll> userAlls = new ArrayList<>(); for (int i = 0; i < users.size(); i++) { User user = users.get(i); String userName = user.getUserName(); UserAll userAll = new UserAll(); userAll.setUserName(userName); userAlls.add(userAll); } return userAlls ; } /** * 修改密码 * @param userName * @param password * @return */ @Override public Boolean changePassword(String userName,String password) { QueryWrapper<User> wrapper = new QueryWrapper<>(); wrapper.eq("userName",userName); User user = baseMapper.selectOne(wrapper); if (user == null){ return false; } user.setUserPassword(password); boolean save = userService.update(user,null); return save; } /** * 用户的登录功能PostMapping * @param loginuser * @return */ @Override public String login(loginUser loginuser) { String userName = loginuser.getUserName(); String userPassword = loginuser.getUserPassword(); //用户名和密码非空判断 if(org.springframework.util.StringUtils.isEmpty(userName) || org.springframework.util.StringUtils.isEmpty(userPassword)) { return "wrong Password"; } //判断手机号是否正确 QueryWrapper<User> wrapper = new QueryWrapper<>(); wrapper.eq("userName",userName); User user = baseMapper.selectOne(wrapper); //判断密码 //因为存储到数据库密码肯定加密的 //把输入的密码进行加密，再和数据库密码进行比较 //加密方式 MD5 if(!userPassword.equals(user.getUserPassword())) { return "wrong Password"; } else { return "success login"; } } }
注意：第一个获取所有用户名的方法会发现我自己生成一个实体类，原因是我的数据库表里面有很多字段，但是我在前端展示的时候只能显示几个字段，就是起到保护隐私安全的作用。所以我新建了UserAll类。不影响阅读这些逻辑。
UserAll.java
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5@Data public class UserAll { private String userName; }
7、运行springboot
这就是全部代码，我们运行之后启动成功。然后打开swagger测试
这里就可以进行接口测试。这里就不进行展示了。
四、部署至服务器
我们使用maven打包。点击package。就可以生成jar包了。
然后上传至服务器。
这里我们就使用 java -jar server-0.0.1-SNAPSHOT.jar 命令运行起来就可以了。
这样就跑起来了。
注意：
这里有一个坑，要看服务器8001的端口有没有开放，否则是不能通过ip访问到的。
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4firewall-cmd --list-port firewall-cmd --zone=public --add-port=8001/tcp --permanent firewall-cmd --reload firewall-cmd --query-port=8001/tcp
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3firewall-cmd --zone=public --remove-port=8001/tcp --permanent # 删除 netstat -anp|grep 8001
然后打开一个接口
五、运行测试
打开AS ,运行APP，打印日志
简单的登录注册基本功能逻辑就已经实现了，大致流程可以走通。接下来就可以继续开发其他了。
注：这里只是最基本的登录注册，还不完善，比如这里密码用户名是明文传送，很容易被抓包，所以这篇花了一点时间做的demo，并不完善，后面会补充完整。
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最后
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