This article mainly provides a detailed analysis of the .Net code for sending graphic messages in the development of WeChat public platform. Interested friends can refer to it

We talked about letting WeChat send us ordinary messages before Text information, let's take a look at how to send graphic information. It should be noted that what is said here is to let WeChat send it to us, instead of us taking a picture and sending it to WeChat for processing. We will upload the picture and introduce it in a later chapter. The following is the function for sending graphic messages, involving several key parameters: title (title), description (summary), picurl (picture), and link (url):

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;

   }

Directly in Just call the function:

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歡迎北京永杰友信科技有限公司/:rose\n直接回復(fù)“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,歡迎使用北京永杰友信科技有限公司公共微信平臺!");
       if(wx.EventKey=="P1")
         res = sendTextMessage(wx, "你好,點(diǎn)擊了產(chǎn)品1");
       if(wx.EventKey=="P2")
         res = sendTextMessage(wx, "你好,點(diǎn)擊了產(chǎn)品2");
     }
     else
     {
       if (wx.MsgType == "text" && wx.Content == "你好")
       {
         res = sendTextMessage(wx, "你好,歡迎使用北京永杰友信科技有限公司公共微信平臺!");
       }
       if (wx.MsgType == "text" && wx.Content == "圖文")
       {
         res = sendPicTextMessage(wx,"這里是一個標(biāo)題","這里是摘要","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,未能識別消息!");
       }
     }

     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;
   }

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