微信公众号开发客服接口实例代码

SysVisitor.cs代码:

class SysVisitor
 {
   private static SysVisitor visit = null;
   public static SysVisitor Current
   {
     get
     {
       if (visit == null)
         visit = new SysVisitor();
 
       return visit;
     }
   }
   /// <summary>
   /// 获取access_token
   /// </summary>
   ///<param name="appid">appid
   ///<param name="secret">appsecret
   /// <returns></returns>
   public string Get_Access_token(string appid, string appsecret)
   {
     string secondappid = INIFile.ContentValue("weixin", "secondappid");
     if (appid.ToLower() == secondappid.ToLower())
     {
       string ls_time = INIFile.ContentValue("weixin", "gettime");
       Decimal ldt;
       try
       {
         ldt = Convert.ToDecimal(ls_time);
         if (Convert.ToDecimal(DateTime.Now.ToString("yyyyMMddHHmmss")) - ldt < 7100)//每两个小时刷新一次
         {
           return INIFile.ContentValue("weixin", "access_token");
         }
       }
       catch
       { }
     }
     string ls_appid = appid.Replace(" ", "");
     string ls_secret = appsecret.Replace(" ", "");
     string access_token = "";
     string url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", ls_appid, ls_secret);
     string json_access_token = GetPageInfo(url);
     //DataTable dt = Json.JsonToDataTable(json_access_token);
     DataTable dt = JsonHelper.JsonToDataTable(json_access_token);
     try
     {
       access_token = dt.Rows[0]["access_token"].ToString();
     }
     catch
     {
       return "";
     }
     INIFile.SetINIString("weixin", "gettime", DateTime.Now.ToString("yyyyMMddHHmmss"));
     INIFile.SetINIString("weixin", "access_token", access_token);
     INIFile.SetINIString("weixin", "secondappid", ls_appid);
 
     return access_token;
   }
 
   /// <summary>
   /// 获取access_token
   /// </summary>
   public string Get_Access_token()
   {
     string ls_appid = INIFile.ContentValue("weixin", "Appid");
     string ls_secret = INIFile.ContentValue("weixin", "AppSecret");
     return Get_Access_token(ls_appid, ls_secret);
   }
 
   /// <summary>
   /// Get方法请求url并接收返回消息
   /// </summary>
   ///<param name="strUrl">Url地址
   /// <returns></returns>
   public string GetPageInfo(string url)
   {
     HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
     HttpWebResponse response = (HttpWebResponse)request.GetResponse();
 
     string ret = string.Empty;
     Stream s;
     string StrDate = "";
     string strValue = "";
 
     if (response.StatusCode == HttpStatusCode.OK)
     {
       s = response.GetResponseStream();
       ////在这儿处理返回的文本
       StreamReader Reader = new StreamReader(s, Encoding.UTF8);
 
       while ((StrDate = Reader.ReadLine()) != null)
       {
         strValue += StrDate + "rn";
       }
       //strValue = Reader.ReadToEnd();
     }
     return strValue;
   }
 
   /// <summary>
   /// Post方法
   /// </summary>
   ///<param name="posturl">URL
   ///<param name="postData">Post数据
   /// <returns></returns>
   public string PostPage(string posturl, string postData)
   {
     Stream outstream = null;
     Stream instream = null;
     StreamReader sr = null;
     HttpWebResponse response = null;
     HttpWebRequest request = null;
     Encoding encoding = Encoding.UTF8;
     byte[] data = encoding.GetBytes(postData);
     // 准备请求...
     try
     {
       // 设置参数
       request = WebRequest.Create(posturl) as HttpWebRequest;
       CookieContainer cookieContainer = new CookieContainer();
       request.CookieContainer = cookieContainer;
       request.AllowAutoRedirect = true;
       request.Method = "POST";
       request.ContentType = "application/x-www-form-urlencoded";
       request.ContentLength = data.Length;
       outstream = request.GetRequestStream();
       outstream.Write(data, 0, data.Length);
       outstream.Close();
       //发送请求并获取相应回应数据
       response = request.GetResponse() as HttpWebResponse;
       //直到request.GetResponse()程序才开始向目标网页发送Post请求
       instream = response.GetResponseStream();
       sr = new StreamReader(instream, encoding);
       //返回结果网页（html）代码
       string content = sr.ReadToEnd();
       string err = string.Empty;
       return content;
     }
     catch (Exception ex)
     {
       string err = ex.Message;
       return string.Empty;
     }
   }
 
   /// <summary>
   /// 格式化字符串
   /// </summary>
   ///<param name="str">
   /// <returns></returns>
   public string GetFormatStr(string str)
   {
     if ("" == str)
       return "";
     else
     {
       str = str.Trim();
       str = str.Replace("'", "'");
       str = str.Replace("〈", "<");
       str = str.Replace("〉", ">");
       str = str.Replace("，", ",");
       return str;
     }
   }
   string ls_username = "";
   /// <summary>
   /// 用户名
   /// </summary>
   public string Wx_username
   {
     get
     {
       return ls_username;
     }
     set
     {
       ls_username = value;
     }
   }
   string ls_openid = "";
   /// <summary>
   /// Openid
   /// </summary>
   public string Wx_openid
   {
     get
     {
       return ls_openid;
     }
     set
     {
       ls_openid = value;
     }
   }
 }
								 
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