protected string sendPicTextMessage(Msg _mode,string title,string description,string picurl,string url)  
    {  
         
        string res = string.Format(@"<xml>  
                                            <ToUserName><![CDATA[{0}]]></ToUserName>  
                                            <FromUserName><![CDATA[{1}]]></FromUserName>  
                                            <CreateTime>{2}</CreateTime>  
                                            <MsgType><![CDATA[news]]></MsgType>  
                                            <ArticleCount>1</ArticleCount>  
                                            <Articles>  
                                            <item>  
                                            <Title><![CDATA[{3}]]></Title>   
                                            <Description><![CDATA[{4}]]></Description>  
                                            <PicUrl><![CDATA[{5}]]></PicUrl>  
                                            <Url><![CDATA[{6}]]></Url>  
                                            </item>  
                                            </Articles>  
                                   </xml> ",  
           _mode.FromUserName, _mode.ToUserName, DateTime.Now,title, description, picurl, url);  
  
        return res;  
  
     }  

protected void Page_Load(object sender, EventArgs e)  
     {  
          
         MyMenu();  
         wxmessage wx = GetWxMessage();  
         string res = "";  
  
         if (!string.IsNullOrEmpty(wx.EventName) && wx.EventName.Trim() == "subscribe")  
         {  
             string content = "";  
             content = "/:rose欢迎北京永杰友信科技有限公司/:rose\n直接回复“你好”";  
             res = sendTextMessage(wx, content);  
         }  
         else if (!string.IsNullOrEmpty(wx.EventName) && wx.EventName.Trim() == "CLICK")  
         {  
             if(wx.EventKey=="Hello")  
                 res = sendTextMessage(wx, "你好,欢迎使用北京永杰友信科技有限公司公共微信平台!");  
             if(wx.EventKey=="P1")  
                 res = sendTextMessage(wx, "你好,点击了产品1");  
             if(wx.EventKey=="P2")  
                 res = sendTextMessage(wx, "你好,点击了产品2");  
         }  
         else  
         {  
             if (wx.MsgType == "text" && wx.Content == "你好")  
             {  
                 res = sendTextMessage(wx, "你好,欢迎使用北京永杰友信科技有限公司公共微信平台!");  
             }  
             if (wx.MsgType == "text" && wx.Content == "图文")  
             {  
                 res = sendPicTextMessage(wx,"这里是一个标题","这里是摘要","http://mp.weixin.qq.com/wiki/skins/common/images/weixin_wiki_logo.png","http://www.4ugood.net");  
             }  
             else if (wx.MsgType == "voice")  
             {  
                 res = sendTextMessage(wx, wx.Recognition);  
             }  
             else  
             {  
                 res = sendTextMessage(wx, "你好,未能识别消息!");  
             }  
         }  
  
         Response.Write(res);  
     }  
  
  
  
     private wxmessage GetWxMessage()  
     {  
         wxmessage wx = new wxmessage();  
         StreamReader str = new StreamReader(Request.InputStream, System.Text.Encoding.UTF8);  
         XmlDocument xml = new XmlDocument();  
         xml.Load(str);  
         wx.ToUserName = xml.SelectSingleNode("xml").SelectSingleNode("ToUserName").InnerText;  
         wx.FromUserName = xml.SelectSingleNode("xml").SelectSingleNode("FromUserName").InnerText;  
         wx.MsgType = xml.SelectSingleNode("xml").SelectSingleNode("MsgType").InnerText;  
         if (wx.MsgType.Trim() == "text")  
         {  
             wx.Content = xml.SelectSingleNode("xml").SelectSingleNode("Content").InnerText;  
         }  
         if (wx.MsgType.Trim() == "event")  
         {  
             wx.EventName = xml.SelectSingleNode("xml").SelectSingleNode("Event").InnerText;  
             wx.EventKey = xml.SelectSingleNode("xml").SelectSingleNode("EventKey").InnerText;  
         }  
         if (wx.MsgType.Trim() == "voice")  
         {  
             wx.Recognition = xml.SelectSingleNode("xml").SelectSingleNode("Recognition").InnerText;  
         }  
           
         return wx;  
     }