java实现微信登录
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
