上一篇做了php的微信登录，所以也总结一下Java的微信授权登录并获取用户信息这个功能的开发流程。

前言

上一篇做了php的微信登录，所以也总结一下Java的微信授权登录并获取用户信息这个功能的开发流程。

配置

配置什么的就不多说了，详细的配置可以直接前往我上一篇查看。

https://www.cnblogs.com/nothavebug/p/18277732

流程实现(后端)(JAVA)(springboot)

1.首先先配置一下application.yml文件

配置一下微信小程序的Appid 和 appSecret

2.编写控制层

package com.xiangwu.controller.Wx;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;

import com.xiangwu.common.exception.BaseException;

import com.xiangwu.common.exception.BussinessException;

import com.xiangwu.common.exception.MessageConstant;

import com.xiangwu.common.interceptor.BaseContext;

import com.xiangwu.common.interceptor.JwtProperties;

import com.xiangwu.common.jwt.JwtClaimsConstant;

import com.xiangwu.common.response.BaseResponse;

import com.xiangwu.common.utils.JwtUtil;

import com.xiangwu.entiry.Demand;

import com.xiangwu.entiry.Member;

import com.xiangwu.entiry.Member1;

import com.xiangwu.savedto.MemberDto;

import com.xiangwu.savedto.UserLoginDto;

import com.xiangwu.savedto.UserLoginVo;

import com.xiangwu.service.MemberService;

import io.swagger.annotations.Api;

import io.swagger.annotations.ApiOperation;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.BeanUtils;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.*;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

/**

* @Author nothavebug

* @Date 2024/7/2 14:58

* @PackageName:com.yisen.controller

* @ClassName: MenberController

* @Description:

* @Version 1.0

*/

@RestController("wxMemberController")

@RequestMapping("/user")

@Api(tags = "微信登录")

@Slf4j

public class MemberController {

@Autowired

private MemberService memberService;

@Autowired

private JwtProperties jwtProperties;

//C端用户登录--微信登录

@PostMapping("/user/login")

@ApiOperation("登录")

public BaseResponse<UserLoginVo> login(@RequestBody UserLoginDto userLoginDto) {

//微信登录

Member1 member = memberService.wxLogin(userLoginDto);

//为微信生成jwt

Map claims = new HashMap();

//用户唯一标识

claims.put(JwtClaimsConstant.USER_ID, member.getId());

String token = JwtUtil.createJWT(jwtProperties.getUserSecretKey(), jwtProperties.getUserTtl(), claims);

//其他处理

return new BaseResponse<>(token);

}

}

3.编写Service层

package com.xiangwu.service;

import com.baomidou.mybatisplus.extension.service.IService;

import com.xiangwu.entiry.Member;

import com.xiangwu.entiry.Member1;

import com.xiangwu.savedto.UserLoginDto;

/**

* @Author nothavebug

* @Date 2024/7/2 14:58

* @PackageName:com.xiangwu.service

* @ClassName: MemberService

* @Description:

* @Version 1.0

*/

public interface MemberService extends IService<Member> {

//微信登录

Member1 wxLogin(UserLoginDto userLoginDto);

}

4.编写Impl

package com.xiangwu.service.impl;

import cn.binarywang.wx.miniapp.api.WxMaService;

import cn.binarywang.wx.miniapp.bean.WxMaJscode2SessionResult;

import cn.binarywang.wx.miniapp.bean.WxMaPhoneNumberInfo;

import cn.binarywang.wx.miniapp.bean.WxMaUserInfo;

import com.alibaba.fastjson.JSON;

import com.alibaba.fastjson.JSONObject;

import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.xiangwu.common.exception.LoginFailedException;

import com.xiangwu.common.interceptor.WeChatProperties;

import com.xiangwu.common.utils.HttpClientUtil;

import com.xiangwu.entiry.Demand;

import com.xiangwu.entiry.Member;

import com.xiangwu.entiry.Member1;

import com.xiangwu.mapper.DemandMapper;

import com.xiangwu.mapper.Member1Mapper;

import com.xiangwu.mapper.MemberMapper;

import com.xiangwu.savedto.UserLoginDto;

import com.xiangwu.service.DemandService;

import com.xiangwu.service.MemberService;

import lombok.extern.slf4j.Slf4j;

import me.chanjar.weixin.common.error.WxErrorException;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import javax.security.auth.login.LoginException;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

/**

* @Author nothavebug

* @Date 2024/7/2 14:58

* @PackageName:com.xiangwu.service.impl

* @ClassName: MemberServiceImpl

* @Description:

* @Version 1.0

*/

@Service

@Slf4j

public class MemberServiceImpl extends ServiceImpl<MemberMapper, Member> implements MemberService {

public static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";

@Autowired

private WxMaService wxMaService;

@Autowired

private MemberMapper memberMapper;

@Autowired

private WeChatProperties weChatProperties;

@Autowired

private Member1Mapper member1Mapper;

@Override

public Member1 wxLogin(UserLoginDto userLoginDto) {

String code = userLoginDto.getCode();

try {

WxMaJscode2SessionResult session = wxMaService.getUserService().getSessionInfo(code);

String openid = session.getOpenid();

// 调用微信 API 获取用户的手机号

WxMaPhoneNumberInfo phoneInfo = wxMaService.getUserService().getPhoneNoInfo(session.getSessionKey(), userLoginDto.getEncryptedData(), userLoginDto.getIv());

String phoneNumber = phoneInfo.getPhoneNumber();

if (openid==null){

throw new LoginFailedException("登录失败");

}

Member1 member = memberMapper.getBymobile(phoneNumber);

if (member ==null){

Member1 member1 = new Member1();

member1.setOpenid(openid);

member1.setAddTime(new Date());

member1.setMobile(phoneNumber);

member1.setAvatar("http://springboot.itliu.top/wx/images/20220225072654_1.jpg");

member1.setMemberType("1");

member1Mapper.insert(member1);

}

// 更新openid

LambdaUpdateWrapper<Member1> member1LambdaUpdateWrapper = new LambdaUpdateWrapper<>();

member1LambdaUpdateWrapper.set(Member1::getOpenid,openid)

.eq(Member1::getMobile,phoneNumber);

member1Mapper.update(member,member1LambdaUpdateWrapper);

return member;

} catch (WxErrorException e) {

throw new RuntimeException(e);

}

}

private String getOpenid(String code){

//请求参数封装

Map map = new HashMap();

map.put("appid",weChatProperties.getAppid());

map.put("secret",weChatProperties.getSecret());

map.put("js_code",code);

map.put("grant_type","authorization_code");

//调用工具类，向微信接口服务发送请求

String json = HttpClientUtil.doGet(WX_LOGIN, map);

log.info("微信登录返回结果：{}", json);

//解析json字符串

JSONObject jsonObject = JSON.parseObject(json);

log.info("jsonObject: {}",jsonObject);

String openid = jsonObject.getString("openid");

log.info("微信用户的openid为：{}", openid);

return openid;

}

}

流程实现(前端)(Vue)(uniapp)

前端微信登录流程实现请移步我上一篇：https://www.cnblogs.com/nothavebug/p/18277732