75 lines
2.3 KiB
Java
75 lines
2.3 KiB
Java
package com.sky.service.impl;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.sky.constant.MessageConstant;
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import com.sky.dto.UserLoginDTO;
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import com.sky.entity.User;
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import com.sky.exception.LoginFailedException;
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import com.sky.mapper.UserMapper;
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import com.sky.properties.WeChatProperties;
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import com.sky.service.UserService;
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import com.sky.utils.HttpClientUtil;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.time.LocalDateTime;
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import java.util.HashMap;
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import java.util.Map;
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@Service
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public class UserServiceImpl implements UserService {
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//微信服务接口地址
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public static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";
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@Autowired
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private WeChatProperties weChatProperties;
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@Autowired
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private UserMapper userMapper;
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/**
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* 微信登录
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* @param userLoginDTO
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* @return
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*/
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@Override
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public User wxLogin(UserLoginDTO userLoginDTO) {
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//1.调用微信接口服务，获取当前微信用户端openid
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String openid = getOpenid(userLoginDTO.getCode());
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//2.判断openid是否是空，如果为空，表示登录失败，抛出业务异常
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if (openid == null) {
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throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
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}
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//3.判断当前用户是否为新用户
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User user = userMapper.getByOpenid(openid);
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//4.如果是新用户，自动完成注册
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if (user == null) {
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user = User.builder()
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.openid(openid)
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.createTime(LocalDateTime.now())
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.build();
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userMapper.insert(user);
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}
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//返回用户对象
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return user;
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}
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//调用微信接口服务，获取当前微信用户端openid
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private String getOpenid(String code){
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Map<String, String> map = new HashMap<>();
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map.put("appid", weChatProperties.getAppid());
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map.put("secret", weChatProperties.getSecret());
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map.put("js_code", code);
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map.put("grant_type", " authorization_code");
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String json = HttpClientUtil.doGet(WX_LOGIN, map);
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JSONObject jsonObject = JSON.parseObject(json);
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String openid = jsonObject.getString("openid");
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return openid;
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}
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}
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