.netcore实现微信登陆

public const string appId &＃61; "";//申请的微信给的appIdpublic const string appSecret &＃61; "";//申请的微信给的appsecretpublic const string redirecturl &＃61; "";//申请的微信的回调地址#region 微信登陆///

/// 微信授权页面///

/// public virtual IActionResult WechatAuthorize(){var url &＃61; $"https://open.weixin.qq.com/connect/qrconnect?appid&＃61;{appId}&redirect_uri&＃61;{redirecturl}&response_type&＃61;code&scope&＃61;snsapi_login&state&＃61;STATE#wechat_redirect";return new RedirectResult(url);}///

/// 微信回调方法///

/// public virtual IActionResult WechatLogin(){var code &＃61; Request.Query["code"];var dis &＃61; GetAuthorityWechatAccessToken(code);if (!dis.ContainsKey("openid") || !dis.ContainsKey("access_token"))return null;var userinfo &＃61; GetWechatUserInfo(dis["access_token"], dis["openid"]);return null;}///

/// 微信比QQ在获取Token的时候返回了OpenId和UnionId。///

/// /// public virtual Dictionary<string,string> GetAuthorityWechatAccessToken(string code){if (string.IsNullOrEmpty(code))return null;var url &＃61;string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid&＃61;{0}&secret&＃61;{1}&code&＃61;{2}&grant_type&＃61;authorization_code",appId, appSecret, code);HttpWebRequest request &＃61; WebRequest.Create(url) as HttpWebRequest;var json &＃61; WebRequestHelper.GetResponse(request, "utf-8");if (string.IsNullOrEmpty(json))return null;if (!json.Contains("access_token")){return null;}var dis &＃61; json.DeserializeJsonstring, string>>();return dis;}///

/// 获取微信用户信息///

/// /// /// public virtual Dictionary<string,object>GetWechatUserInfo(string token,string openid){var url &＃61; $"https://api.weixin.qq.com/sns/userinfo?access_token&＃61;{token}&openid&＃61;{openid}";HttpWebRequest request &＃61; WebRequest.Create(url) as HttpWebRequest;var json &＃61; WebRequestHelper.GetResponse(request, "utf-8");var dis &＃61; json.DeserializeJsonstring, object>>();if (dis &＃61;&＃61; 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 &＃61; request.GetResponse()){var stream &＃61; response.GetResponseStream();if (stream &＃61;&＃61; null) return null;using (var reader &＃61; new StreamReader(stream, Encoding.GetEncoding(encoding))){return reader.ReadToEnd();}}}