// 微信跳转的网址列表ArrayList addressList = new ArrayList();private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e){string url = e.Url.ToString();//微信每次跳转的页面放到list中，第一个是包含code的网址
            addressList.Add(url);            } 

   /// <summary>/// 微信Access_token类/// </summary>public class OAuth_Token{public OAuth_Token(){////TODO: 在此处添加构造函数逻辑//
        }//access_token    网页授权接口调用凭证,注意：此access_token与基础支持的access_token不同//expires_in    access_token接口调用凭证超时时间，单位（秒）//refresh_token    用户刷新access_token//openid    用户唯一标识，请注意，在未关注公众号时，用户访问公众号的网页，也会产生一个用户和公众号唯一的OpenID//scope    用户授权的作用域，使用逗号（,）分隔public string _access_token;public string _expires_in;public string _refresh_token;public string _openid;public string _scope;public string access_token{set { _access_token = value; }get { return _access_token; }}public string expires_in{set { _expires_in = value; }get { return _expires_in; }}public string refresh_token{set { _refresh_token = value; }get { return _refresh_token; }}public string openid{set { _openid = value; }get { return _openid; }}public string scope{set { _scope = value; }get { return _scope; }}}

       //访问微信url并返回微信信息protected string GetJson(string url){WebClient wc = new WebClient();wc.Credentials = CredentialCache.DefaultCredentials;wc.Encoding = Encoding.UTF8;string returnText = wc.DownloadString(url);if (returnText.Contains("errcode")){//可能发生错误
            }return returnText;//根据appid，secret，code获取微信openid、access token信息protected OAuth_Token Get_token(string Code){//获取微信回传的openid、access tokenstring Str = GetJson("https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + appid + "&secret=" + appsecret + "&code=" + Code + "&grant_type=authorization_code");//微信回传的数据为Json格式，将Json格式转化成对象OAuth_Token Oauth_Token_Model = JsonHelper.ParseFromJson<OAuth_Token>(Str);return Oauth_Token_Model;}/// <summary>/// 将Json格式数据转化成对象/// </summary>public class JsonHelper{/// <summary>  /// 生成Json格式  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="obj"></param>  /// <returns></returns>  public static string GetJson<T>(T obj){DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());using (MemoryStream stream = new MemoryStream()){json.WriteObject(stream, obj);string szJson = Encoding.UTF8.GetString(stream.ToArray()); return szJson;}}/// <summary>  /// 获取Json的Model  /// </summary>  /// <typeparam name="T"></typeparam>  /// <param name="szJson"></param>  /// <returns></returns>  public static T ParseFromJson<T>(string szJson){T obj = Activator.CreateInstance<T>();using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson))){DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());return (T)serializer.ReadObject(ms);}}}

    /// <summary>/// 微信用户信息类/// </summary>public class OAuthUser{public OAuthUser(){ }#region 数据库字段private string _openID;private string _searchText;private string _nickname;private string _sex;private string _province;private string _city;private string _country;private string _headimgUrl;private string _privilege;private string _unionid;#endregion#region 字段属性/// <summary>/// 用户的唯一标识/// </summary>public string openid{set { _openID = value; }get { return _openID; }}/// <summary>////// </summary>public string SearchText{set { _searchText = value; }get { return _searchText; }}/// <summary>/// 用户昵称/// </summary>public string nickname{set { _nickname = value; }get { return _nickname; }}/// <summary>/// 用户的性别，值为1时是男性，值为2时是女性，值为0时是未知/// </summary>public string sex{set { _sex = value; }get { return _sex; }}/// <summary>/// 用户个人资料填写的省份/// </summary>public string province{set { _province = value; }get { return _province; }}/// <summary>/// 普通用户个人资料填写的城市/// </summary>public string city{set { _city = value; }get { return _city; }}/// <summary>/// 国家，如中国为CN/// </summary>public string country{set { _country = value; }get { return _country; }}/// <summary>/// 用户头像，最后一个数值代表正方形头像大小（有0、46、64、96、132数值可选，0代表640*640正方形头像），用户没有头像时该项为空/// </summary>public string headimgurl{set { _headimgUrl = value; }get { return _headimgUrl; }}/// <summary>/// 用户特权信息，json 数组，如微信沃卡用户为（chinaunicom）其实这个格式称不上JSON，只是个单纯数组/// </summary>public string privilege{set { _privilege = value; }get { return _privilege; }}public string unionid{set { _unionid = value; }get { return _unionid; }}#endregion}

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e){            //获取微信跳转的第一个页面的网址string tempCode = addressList[0].ToString();//微信最终获得的codestring code = "";if (tempCode.Contains("code")){int iStart = tempCode.IndexOf("=");int iEnd = tempCode.IndexOf('&', iStart);if (iEnd < 0){iEnd = tempCode.Length - iStart;}else{iEnd -= iStart;}code = tempCode.Substring(iStart + 1, iEnd - 1);                }else{return;                }           if (string.IsNullOrEmpty(code))return;OAuth_Token Model = Get_token(code);  //获取access_tokenOAuthUser OAuthUser_Model = Get_UserInfo(Model.access_token, Model.openid);//获取用户信息