.Net开发微信公众平台之自定义菜单代码详解

 public void MyMenu()    {     string weixin1 = "";     weixin1 = @" {    ""button"":[    {      ""type"":""click"",     ""name"":""你好!"",     ""key"":""Hello""    },    {     ""type"":""view"",     ""name"":""公司简介"",     ""url"":""http://www.4ugood.net""    },    {     ""name"":""产品介绍"",     ""sub_button"":[     {      ""type"":""click"",      ""name"":""产品1"",      ""key"":""P1""     },     {      ""type"":""click"",      ""name"":""产品2"",      ""key"":""P2""     }]    }]   }  ";     string access_token = IsExistAccess_Token();     string i = GetPage("https://api.weixin.qq.com/cgi-bin/menu/create?access_token="+access_token, weixin1);     Response.Write(i);    }

在你页面的 Page_Load 函数中调用这个MyMenu()，就可以显示出来了。既然显示出来了，菜单的时间如何出发呢？我们已经了解到了如果类型为view的话，他有url属性，这个不需要处理，点击后会直接跳转到你设定的url的页面，下面我来看看如何触发click吧，按照微信的文档可以用(!string.IsNullOrEmpty(wx.EventName) && wx.EventName.Trim() == "CLICK")来判断，我把之前的代码改造一下,同时把在GetWxMessage()方法中把EventKey的值附上,wx.EventKey = xml.SelectSingleNode("xml").SelectSingleNode("EventKey").InnerText;

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!");      }      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;    }    /// <summary>     /// 发送文字消息     /// </summary>     /// <param name="wx">获取的收发者信息</param>     /// <param name="content">内容</param>     /// <returns></returns>     private string sendTextMessage(wxmessage wx, string content)    {     string res = string.Format(@"<xml>           <ToUserName><![CDATA[{0}]]></ToUserName>           <FromUserName><![CDATA[{1}]]></FromUserName>           <CreateTime>{2}</CreateTime>           <MsgType><![CDATA[text]]></MsgType>           <Content><![CDATA[{3}]]></Content>           </xml> ",      wx.FromUserName, wx.ToUserName, DateTime.Now, content);     return res;    }

这样就可以相应你的菜单事件了，我上面的代码写的有很多可以优化的地方，这里主要以简介为主，以后我们会逐渐搭建起一个微信公共平台的.net框架，什么菜单类，消息类等等。

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