string appid = "wx145b4a8fd07b24e8";string appsecrect = "fe6951dcb99772411c42f724b1336065";string redirect_url = "配置域名下的回調地址";OAuthManage _oauth = null;/// <summary>///控制器構造函數/// </summary>public UserController(){  _oauth = new OAuthManage(appid, appsecrect, redirect_url);}/// <summary>/// 授權登錄/// </summary>/// <returns></returns>public ActionResult AuthLogin(){  ViewBag.url = _oauth.GetCodeUrl();  return View();}/// <summary>/// 回調處理/// </summary>/// <returns></returns>public ActionResult OAuthHandle(){  string result = "";  //注冊事件處理  _oauth.OnError = (e) =>  {    string msg = "";    Exception inner = e;    while (inner != null)    {      msg += inner.Message;      inner = inner.InnerException;    }    result = msg;    LogOperate.Write(msg);  };  _oauth.OnGetTokenSuccess = (token) =>  {    result += "<br/>";    result += token.ToJsonString();  };  _oauth.OnGetUserInfoSuccess = (user) =>  {    result += "<br/>";    result += user.ToJsonString();  };  //第二步  _oauth.GetAccess_Token();  //第三步  _oauth.GetUserInfo();  //顯示結果  ViewBag.msg = result;  return View();}

namespace WXPackage{  /// <summary>  /// 網頁授權邏輯處理，  /// 處理三步操作，處理成功，返回用戶基本信息  /// </summary>  public class OAuthManage  {    #region 基本信息定義    /// <summary>    /// 公眾號的唯一標識    /// </summary>    private string appid;    /// <summary>    /// 公眾號的appsecret    /// </summary>    private string secret;    /// <summary>    /// 回調url地址    /// </summary>    private string redirect_uri;    /// <summary>    /// 獲取微信用戶基本信息使用snsapi_userinfo模式    /// 如果使用靜默授權，無法獲取用戶基本信息但可以獲取到openid    /// </summary>    private string scope;    public OAuthManage(string appid, string appsecret, string redirect_uri, bool IsUserInfo = true)    {      this.appid = appid;      this.secret = appsecret;      this.redirect_uri = redirect_uri;      this.scope = IsUserInfo ? "snsapi_userinfo" : "snsapi_base";    }    #endregion    #region 請求過程信息    /// <summary>    /// 第一步獲取到的Code 值    /// </summary>    public string Code { get; set; }    /// <summary>    /// 第二步獲取到的access_token及相關數據    /// </summary>    public OAuthAccess_Token TokenData = null;    #endregion    #region 事件定義    /// <summary>    /// 當處理出現異常時，觸發    /// </summary>    public Action<Exception> OnError = null;    /// <summary>    /// 當獲取AccessToken成功是觸發    /// </summary>    public Action<OAuthAccess_Token> OnGetTokenSuccess = null;    /// <summary>    /// 當獲取用戶信息成功時觸發    /// </summary>    public Action<OAuthUser> OnGetUserInfoSuccess = null;    #endregion    #region 第二步,回調處理    /// <summary>    /// 第二步，通過code換取網頁授權access_token    /// </summary>    public void GetAccess_Token()    {      try      {        //1.處理跳轉        this.Code = ReqHelper.GetString("code");        if (string.IsNullOrEmpty(this.Code))          throw new Exception("獲取code參數失敗或用戶禁止授權獲取基本信息");        //1.發送獲取access_token請求        string url = GetAccess_TokenUrl();        string result = NetHelper.Get(url);        //2.解析相應結果        TokenData = JsonConvert.DeserializeObject<OAuthAccess_Token>(result);        if (TokenData == null)          throw new Exception("反序列化結果失敗，返回內容為：" + result);        //3.獲取成功        if (OnGetTokenSuccess != null)          OnGetTokenSuccess(TokenData);      }      catch (Exception ex)      {        Error("第二步，通過code換取網頁授權access_token異常", ex);      }    }    /// <summary>    /// 刷新當前access_token    /// </summary>    public OAuthAccess_Token RefreshAccess_Token()    {      try      {        //1.發送請求        string url = GetReferesh_TokenUrl();        string result = NetHelper.Get(url);        //2.解析結果        OAuthAccess_Token token = JsonConvert.DeserializeObject<OAuthAccess_Token>(result);        if (token == null)          throw new Exception("反序列化結果失敗，返回內容：" + result);        return token;      }      catch (Exception ex)      {        Error("刷新當前access_token失敗", ex);        return null;      }    }    #endregion    #region 第三步，獲取用戶基本信息    /// <summary>    /// 第三步，獲取基本信息    /// </summary>    public void GetUserInfo()    {      try      {        //1.發送get請求        string url = GetUserInfoUrl();        string result = NetHelper.Get(url);        //2.解析結果        OAuthUser user = JsonConvert.DeserializeObject<OAuthUser>(result);        if (user == null)          throw new Exception("反序列化結果失敗，返回內容：" + result);        //3.獲取成功        if (OnGetUserInfoSuccess != null)          OnGetUserInfoSuccess(user);      }      catch (Exception ex)      {        Error("第三步、獲取用戶基本信息異常", ex);      }    }    #endregion    #region 靜態方法    /// <summary>    /// 驗證授權憑證是否有效    /// </summary>    /// <param name="access_token">access_token</param>    /// <param name="openid">用戶針對當前公眾號的openid</param>    /// <returns></returns>    public static bool CheckWebAccess_Token(string access_token, string openid)    {      try      {        string url = string.Format("https://api.weixin.qq.com/sns/auth?access_token={0}&openid={1}",       access_token,       openid);        string result = NetHelper.Get(url);        JObject obj = JObject.Parse(result);        int errcode = (int)obj["errcode"];        return errcode == 0;      }      catch (Exception ex)      {        throw new Exception("，" + ex.Message);      }    }    #endregion    #region 獲取請求連接    /// <summary>    /// 獲取Code的url 地址    /// </summary>    /// <returns></returns>    public string GetCodeUrl()    {      string url = string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope={2}&state=STATE#wechat_redirect",        this.appid,        SecurityHelper.UrlEncode(this.redirect_uri),        this.scope);      return url;    }    /// <summary>    /// 獲取access_token的url地址    /// </summary>    /// <returns></returns>    private string GetAccess_TokenUrl()    {      string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code",        this.appid,        this.secret,        this.Code);      return url;    }    /// <summary>    /// 獲取刷新AccessToke的地址    /// </summary>    /// <returns></returns>    private string GetReferesh_TokenUrl()    {      string url = string.Format("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid={0}&grant_type=refresh_token&refresh_token={1}",        this.appid,        this.TokenData.refresh_token        );      return url;    }    /// <summary>    /// 獲取用戶基本信息地址    /// </summary>    /// <returns></returns>    private string GetUserInfoUrl()    {      string url = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN",        this.TokenData.access_token,        this.TokenData.openid);      return url;    }    #endregion    private void Error(string msg, Exception inner)    {      if (this.OnError != null)      {        this.OnError(new Exception(msg, inner));      }    }  }  /// <summary>  /// 授權之后獲取用戶基本信息  /// </summary>  public class OAuthUser  {    public string openid { get; set; }    public string nickname { get; set; }    public int sex { get; set; }    public string province { get; set; }    public string city { get; set; }    public string country { get; set; }    public string headimgurl { get; set; }    /// <summary>    /// 用戶特權信息，json 數組    /// </summary>    public JArray privilege { get; set; }    public string unionid { get; set; }  }  /// <summary>  /// 獲取Access_Token或者刷新返回的數據對象  /// </summary>  public class OAuthAccess_Token  {    public string access_token { get; set; }    public int expires_in { get; set; }    public string refresh_token { get; set; }    /// <summary>    /// 用戶針對當前公眾號的唯一標識    /// 關注后會產生，返回公眾號下頁面也會產生    /// </summary>    public string openid { get; set; }    public string scope { get; set; }    /// <summary>    /// 當前用戶的unionid，只有在用戶將公眾號綁定到微信開放平臺帳號后    /// </summary>    public string unionid { get; set; }  }}