SpringCloud : 接入 微信公众号平台(四)、获取微信用户信息接口

import com.phpdragon.wechat.proxy.config.WeChatConfig;
import com.phpdragon.wechat.proxy.dto.mp.user.GetOauthUserInfoDto;
import com.phpdragon.wechat.proxy.dto.mp.user.GetOpenidDto;
import com.phpdragon.wechat.proxy.dto.mp.user.GetUserInfoDto;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import me.chanjar.weixin.mp.bean.result.WxMpUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;

@Slf4j
@RequestMapping("/user/")
@RestController
public class UserController {

    @Autowired
    private WeChatConfig weChatConfig;

    /**
     * 通过openid获得基本用户信息
     * 详情请见: https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#3
     *
     * @param req
     * @return
     */
    @ResponseBody
    @PostMapping("/getUserInfo")
    public WxMpUser getUserInfo(@RequestBody @Valid GetUserInfoDto req) throws WxErrorException {
        WxMpService wxMpService = weChatConfig.getWxMpService(req.getAppId());
        return wxMpService.getUserService().userInfo(req.getOpenid(), req.getLang());
    }

    /**
     * 通过code获得基本用户信息
     * 详情请见:
     * https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#1
     * https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#3
     *
     * @param req
     * @return
     */
    @ResponseBody
    @RequestMapping("/getOAuth2UserInfo")
    public WxMpUser getOAuth2UserInfo(@RequestBody @Valid GetOauthUserInfoDto req) throws WxErrorException {
        WxMpService wxMpService = weChatConfig.getWxMpService(req.getAppId());
        WxMpOAuth2AccessToken accessToken = wxMpService.oauth2getAccessToken(req.getCode());
        return wxMpService.getUserService().userInfo(accessToken.getOpenId(), req.getLang());
    }

    /**
     * 用code换取oauth2的openid
     * 详情请见: https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#1
     *
     * @param req
     */
    @ResponseBody
    @PostMapping("/getOpenid")
    public String getOpenid(@RequestBody @Valid GetOpenidDto req) throws WxErrorException {
        WxMpService wxMpService = weChatConfig.getWxMpService(req.getAppId());
        WxMpOAuth2AccessToken accessToken = wxMpService.oauth2getAccessToken(req.getCode());
        return accessToken.getOpenId();
    }

}