.net core 实现微信登陆

       public const string appId = "";//申请的微信给的appId         public const string appSecret = "";//申请的微信给的appsecret         public const string redirecturl = "";//申请的微信的回调地址    #region 微信登陆         /// <summary>         /// 微信授权页面         /// </summary>         /// <returns></returns>         public virtual IActionResult WechatAuthorize()         {             var url = $"https://open.weixin.qq.com/connect/qrconnect?appid={appId}&redirect_uri={redirecturl}&response_type=code&scope=snsapi_login&state=STATE#wechat_redirect";             return new RedirectResult(url);         }         /// <summary>         /// 微信回调方法         /// </summary>         /// <returns></returns>         public virtual IActionResult WechatLogin()         {             var code = Request.Query["code"];             var dis = GetAuthorityWechatAccessToken(code);             if (!dis.ContainsKey("openid") || !dis.ContainsKey("access_token"))                 return null;             var userinfo = GetWechatUserInfo(dis["access_token"], dis["openid"]);             return null;         }          /// <summary>         /// 微信比QQ在获取Token的时候返回了OpenId和UnionId。         /// </summary>         /// <param name="code"></param>         /// <returns></returns>         public virtual Dictionary<string,string> GetAuthorityWechatAccessToken(string code)         {             if (string.IsNullOrEmpty(code))                 return null;             var url =                 string.Format(                     "https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code",                     appId, appSecret, code);             HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;             var json = WebRequestHelper.GetResponse(request, "utf-8");             if (string.IsNullOrEmpty(json))                 return null;             if (!json.Contains("access_token"))             {                 return null;             }             var dis = json.DeserializeJson<Dictionary<string, string>>();             return dis;         }          /// <summary>         /// 获取微信用户信息         /// </summary>         /// <param name="token"></param>         /// <param name="openid"></param>         /// <returns></returns>         public virtual  Dictionary<string,object>GetWechatUserInfo(string token,string openid)         {             var url = $"https://api.weixin.qq.com/sns/userinfo?access_token={token}&openid={openid}";             HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;             var json = WebRequestHelper.GetResponse(request, "utf-8");             var dis = json.DeserializeJson<Dictionary<string, object>>();             if (dis == null || dis.ContainsKey("errcode"))                 return null;             return dis;         }          #endregion

//请求接口方法    public static string GetResponse(WebRequest request, string encoding)         {             using (WebResponse response = request.GetResponse())             {                 var stream = response.GetResponseStream();                 if (stream == null) return null;                 using (var reader = new StreamReader(stream, Encoding.GetEncoding(encoding)))                 {                     return reader.ReadToEnd();                 }             }         }

这个没有测试登陆，因为看文档和QQ登陆大同小异，连代码都是差不多的。所以就没有测试了。

望参考的游客，还仅供参考。

来源：博客园

作者：随兴‖随心

链接：https://www.cnblogs.com/CnnBlog/p/11451374.html