public async Task <CommonResult> MpLogin([FromBody] LoginReq req) { //已登录直接跳过 if (HttpContext.IsAuthenticated()) { return(new CommonResult()); } //微信获取session_key var session = await WeixinRemote.GetSessionKey(req.Code); if (session?.ErrCode != 0) { return(CommonResult.CreateError(1, "")); } //数据库中获取微信校验过的身份,没有则新增 var user = new User { OpenId = session.OpenId, UnionId = session.UnionId }; var userDao = new UserDao(); user = userDao.GetLoginUser(user); //写入cookie中 await SetCookie(user); return(new CommonResult()); }