概述
获取微信小程序授权信息并保存到数据库中(包含openId和session_key,java后台)
先来看效果图
微信小程序:
数据库,第一行数据是笔者写测试的时候随便加的。
这是java控制台显示信息,因为已经存在过了,所以不再存储
废话不多说,上代码:
wxml(真正有用的就是view_1):
<view class="view_contain">
<!-- 第一部分 -->
<view class="view_1">
<view class="btn" hidden="{{hidden_actionSheet}}" bindchange="actionSheetChange">
<button class="bt_login" open-type="getUserInfo" bindgetuserinfo="allowGetUserInfo"> 微信授权登录 </button>
</view>
<view class="title_name" hidden="{{!hidden_actionSheet}}">
<image class="userinfo-avatar" src="{{userInfo.avatarUrl}}" mode="cover"></image>
</view>
<view class="text" hidden="{{!hidden_actionSheet}}">
<text class="userinfo-nickname">{{userInfo.nickName}}</text>
</view>
</view>
<!-- 第二部分 -->
<view class="view_2">
<view class="view_tupianwenzi">
<image class="image_tupian" src="../../img/签到.png"></image>
<text class="text_saoyisao ">签到</text>
</view>
<view class="view_tupianwenzi ">
<image class="image_tupian " src="../../img/wxb账户.png"></image>
<text class="text_saoyisao ">账户</text>
</view>
<view class="view_tupianwenzi ">
<image class="image_tupian " src="../../img/消息通知.png"></image>
<text class="text_saoyisao ">通知</text>
</view>
<view class="view_tupianwenzi ">
<image class="image_tupian " src="../../img/设置.png"></image>
<text class="text_saoyisao ">设置</text>
</view>
</view>
<!-- 第三部分 -->
<view class="view_3 ">
<view class="list-item ">
<image class="item-image " src=""></image>
<text class="item-text ">我的事务</text>
<image class="image-jiantou " src="../../img/arrow.png"></image>
</view>
<view class="line "></view>
<view class="list-item ">
<image class="item-image " src=""></image>
<text class="item-text ">请假记录</text>
<image class="image-jiantou " src="../../img/arrow.png"></image>
</view>
<view class="line "></view>
<view class="list-item ">
<image class="item-image " src=""></image>
<text class="item-text ">修改密码</text>
<image class="image-jiantou " src="../../img/arrow.png"></image>
</view>
<view class="line "></view>
<view class="list-item ">
<image class="item-image " src=""></image>
<text class="item-text ">我的反馈</text>
<image class="image-jiantou " src="../../img/arrow.png"></image>
</view>
<view class="line "></view>
<view class="list-item ">
<image class="item-image " src=""></image>
<text class="item-text ">联系我们</text>
<image class="image-jiantou " src="../../img/arrow.png"></image>
</view>
<view class="line "></view>
</view>
</view>
wxss:
page {
width: 100%;
height: 100%;
}
.userinfo-avatar {
width: 128rpx;
height: 128rpx;
margin: 20rpx;
border-radius: 50%;
}
.bt_login {
width: 200rpx;
height: 70rpx;
color: #6699FF;
border: 3rpx solid #6699FF;
border-radius: 80rpx;
font-size: 35rpx;
margin: 20rpx 0;
display: flex;
justify-content: center;
align-items: center;
}
.title_name{
width: 100%;
height: 200rpx;
font-size: 35rpx;
text-align: center;
}
.text{
font-size: larger;
}
.cancel {
font-size: 35rpx;
}
.userinfo-nickname {
color: #aaa;
}
.view_contain {
width: 100%;
height: 100%;
background: #f0eeed;
}
/* 第一部分 */
.view_1 {
display: flex;
justify-content: center;
flex-flow: column;
width: 100%;
height: 333rpx;
background: #f0eeed;
}
.view_image_text {
width: 100%;
height: 300rpx;
/* 水平垂直居中 */
display: flex;
justify-content: center;
align-items: center;
}
.view_image_text>image {
width: 200rpx;
height: 200rpx;
border-radius: 50%;
border: 10rpx solid rgba(0, 0, 0, 0.1);
}
.text {
display: flex;
justify-content: center;
align-items: center;
}
/* 第二部分 */
.view_2 {
width: 100%;
height: 15%;
display: flex;
flex-direction: row;
align-items: center;
justify-content: center;
background: white;
}
.view_tupianwenzi {
display: flex;
flex-direction: column;
width: 120rpx;
align-items: center;
margin-left: 25rpx;
margin-right: 25rpx;
}
.image_tupian {
display: flex;
width: 100rpx;
height: 100rpx;
}
/* 第三部分 */
.view_3 {
width: 100%;
height: 50%;
/* background: #f0eeed; */
}
.list-item {
display: flex;
flex-direction: row;
align-items: center;
width: 100%;
height: 80rpx;
margin-top: 20rpx;
position: relative;
/*父元素位置要设置为相对*/
background: white;
}
.item-image {
width: 50rpx;
height: 50rpx;
margin: 20rpx;
}
.item-text {
color: gray;
font-size: 35rpx;
margin-left: 20rpx;
}
.image-jiantou {
width: 20rpx;
height: 35rpx;
position: absolute;
/* 要约束所在位置的子元素的位置要设置成绝对 */
right: 0;
/* 靠右调节 */
margin-right: 35rpx;
}
/* 黑线 使得产生阴影效果 */
.line {
width: 100%;
height: 3rpx;
background: lightgray;
margin-left: 90rpx;
}
核心js(注意看注释):
wx.login({
success: function(res) {
if (res.code) { //wx.login获取code。
console.log(res.code);
//发起网络请求
wx.getUserInfo({
success:function(res_user){
console.log(res_user.userInfo)
wx.request({
url: 'http://xxx.xxx.xxx.xxx:服务器端口/自定义名字',//填写自己的url
method:'POST',
//向后端发送的数据
data: {
code: res.code , //将code发送到后台服务器。
imgurl: res_user.userInfo.avatarUrl,//获取头像url
nickname:res_user.userInfo.nickName,//获取昵称
sex:res_user.userInfo.gender,//获取性别
},
header: {
"Content-Type": "application/x-www-form-urlencoded" //POST方式是这个
},
})
}
})
} else {
console.log('获取用户登录态失败!' + res.errMsg)
}
}
});
数据库设计(这个是我自己随便设计的,根据需求自己设计):
java,这里我使用的是springboot+mybatisplus:
entity层:
package com.hkd.entity;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
/**
* @author xzbz
* @create 2022-01-07 16:51
*/
@Data
@TableName("user")
public class user {
@TableId
private long id;
private String nickname;
private String password;
private String sex;
private String openid;
private String session_key;
private String imgurl;
}
mapper层:
package com.hkd.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.hkd.entity.user;
import org.apache.ibatis.annotations.Mapper;
/**
* @author xzbz
* @create 2022-01-07 16:56
*/
@Mapper
public interface UserMapper extends BaseMapper<user> {
public user selectUserByOpenId(String Openid);
}
service层:
package com.hkd.service;
import com.hkd.entity.user;
import com.hkd.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* @author xzbz
* @create 2022-01-07 16:58
*/
@Service
public class UserService {
@Autowired
private UserMapper userMapper;
public boolean save(user user){
return userMapper.insert(user)>0;
}
public int update(user user){
return userMapper.updateById(user);
}
public user selectUserByOpenId(String openId){
return userMapper.selectUserByOpenId(openId);
}
}
Controller层(里面的appid和appsecret填写自己的):
package com.hkd.controller;
import com.hkd.entity.user;
import com.hkd.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import static org.springframework.web.bind.annotation.RequestMethod.POST;
/**
* @author xzbz
* @create 2022-01-07 17:01
*/
@RestController
public class UserController {
@Autowired
private UserService userService;
@ResponseBody
@RequestMapping(value = "/login",method = POST)
public void getOpenid(@RequestParam(value="code",required=false)String code,@RequestParam(value = "imgurl")String imgurl,
@RequestParam(value = "nickname")String nickname,@RequestParam(value = "sex")String sex){
//微信官方提供获取openid的url
String WX_URL = "https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&js_code=JSCODE&grant_type=authorization_code";
//替换appid,appsecret,和code
String requestUrl = WX_URL.replace("APPID", "").//填写自己的appid
replace("SECRET", "").replace("JSCODE", code).//填写自己的appsecret,
replace("authorization_code", "authorization_code");
//定义json对象
JSONObject convertvalue=new JSONObject();
//调用get方法
String returnvalue=GET(requestUrl);
//解析返回值,对象解析成字符串
convertvalue= (JSONObject) JSON.parse(returnvalue);
String session_key= (String) convertvalue.get("session_key");
String openid= (String) convertvalue.get("openid");
user user1 = userService.selectUserByOpenId(openid);//判断数据库中是否已存在
if(user1==null){//不存在就存入数据库
user user=new user();
user.setSex(sex);
user.setOpenid(openid);
user.setImgurl(imgurl);
user.setNickname(nickname);
user.setPassword("123456");
user.setSession_key(session_key);
userService.save(user);
}else{
System.out.println("用户已存在,请登录");
}
System.out.println(returnvalue);//打印测试
System.out.println("openid:"+openid);//打印测试
System.out.println("session_key:"+session_key);//打印测试
}
//发起ge请求---生成openid和session_key
public String GET(String url) {
String result="";
BufferedReader in = null;
InputStream is = null;
InputStreamReader isr = null;
try{
//构造url对象
URL realUrl = new URL(url);
//获取一个对应该URL的URLConnection对象
URLConnection conn = realUrl.openConnection();
conn.connect();
is = conn.getInputStream();
isr = new InputStreamReader(is);
in = new BufferedReader(isr);
String line;
while ((line = in.readLine()) != null) {
result += line;
}
}catch (Exception e){
e.printStackTrace();
System.out.println("异常出现");
}
//关闭资源
finally {
try {
if (in != null) {
in.close();
}
if (is != null) {
is.close();
}
if (isr != null) {
isr.close();
}
} catch (Exception e) {
e.printStackTrace();
System.out.println("出现异常");
}
}
return result;
}
}
appid和appsecret获取方法:https://mp.weixin.qq.com/
扫码登录之后
然后将获取到的AppID和AppSecret填入到代码中就可以返回了到openid和session_key了。
最后
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