微信公众平台开发之发送图文消息.Net代码解析

之前我们讲过让微信发送给我们普通的文本信息,下面我们来看看如何发送图文信息,需要注意的是这里说的是,让微信发给我们,而不是我们拍个图片发给微信处理,我们上传图片在以后的章节介绍.下面是发送图文消息的函数,涉及title(标题),description(摘要),picurl(图片),链接(url)几个关键的参数: 

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;

   }

直接在调用函数即可: 

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;
   }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。