{"button":[{    "type":"click","name":"今日歌曲","key":"V1001_TODAY_MUSIC"},{"type":"click","name":"歌手简介","key":"V1001_TODAY_SINGER"},{"name":"菜单","sub_button":[{    "type":"view","name":"搜索","url":"https://open.weixin.qq.com/connect/oauth2/authorize?appid=你的微信公众号appid&redirect_uri=http://xxx.com/WeiXin/OAuthRedirectUrl.aspx?reurl=so&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect"},{"type":"view","name":"视频","url":"http://v.qq.com/"},{"type":"click","name":"赞一下我们","key":"V1001_GOOD"}]}]}

private string _appid = "你的微信公众号appid";private string _appsecret = "你的微信公众号appsecret";private string reurl = "";protected void Page_Load(object sender, EventArgs e){if (!IsPostBack){//获取传过来的值if (Request.QueryString["reurl"] != null && Request.QueryString["reurl"].ToString() != ""){reurl = Request.QueryString["reurl"].ToString();}string code = "";if (Request.QueryString["code"] != null && Request.QueryString["code"] != ""){code = Request.QueryString["code"].ToString();OAuth_Token Model = Get_token(code);OAuthUser OAuthUser_Model = Get_UserInfo(Model.access_token, Model.openid);//"http://xx.com/" + reurl + ".aspx?openid=" + OAuthUser_Model.openid;string strurl = "";switch (reurl){case "so":strurl = "http://www.cnblogs.com/HappyAnt/";break;}Response.Redirect(strurl);//Response.Write("reurl:" + reurl + ",code:" + code + ",openid:" + OAuthUser_Model.openid);
                }}}//获得Tokenprotected OAuth_Token Get_token(string Code){string Str = GetJson("https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + _appid + "&secret=" + _appsecret + "&code=" + Code + "&grant_type=authorization_code");OAuth_Token Oauth_Token_Model = JsonHelper.ParseFromJson<OAuth_Token>(Str);return Oauth_Token_Model;}//刷新Tokenprotected OAuth_Token refresh_token(string REFRESH_TOKEN){string Str = GetJson("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=" + _appid + "&grant_type=refresh_token&refresh_token=" + REFRESH_TOKEN);OAuth_Token Oauth_Token_Model = JsonHelper.ParseFromJson<OAuth_Token>(Str);return Oauth_Token_Model;}//获得用户信息protected OAuthUser Get_UserInfo(string REFRESH_TOKEN, string OPENID){// Response.Write("获得用户信息REFRESH_TOKEN:" + REFRESH_TOKEN + "||OPENID:" + OPENID);string Str = GetJson("https://api.weixin.qq.com/sns/userinfo?access_token=" + REFRESH_TOKEN + "&openid=" + OPENID);OAuthUser OAuthUser_Model = JsonHelper.ParseFromJson<OAuthUser>(Str);return OAuthUser_Model;}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
            }//Response.Write(returnText);return returnText;}}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 { get; set; }public string expires_in { get; set; }public string refresh_token { get; set; }public string openid { get; set; }public string scope { get; set; }}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;#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; }}#endregion}