Detailed explanation of the .Net code analysis method for sending text messages in the development of WeChat public platform

This article explains in detail the .Net code analysis method for sending text messages in the development of WeChat public platform

.Net implements the function of sending text messages in the development of WeChat public service platform. The specific content is as follows

First create a WeChat message class.

class wxmessage 
{ 
 public string FromUserName { get; set; } 
 public string ToUserName { get; set; } 
 public string MsgType { get; set; } 
 public string EventName { get; set; } 
 public string Content { get; set; }
 public string EventKey { get; set; } 
}

The background code is as follows:

protected void Page_Load(object sender, EventArgs e)
  {
   wxmessage wx = GetWxMessage();
   string res = "";
 
   if (!string.IsNullOrEmpty(wx.EventName) && wx.EventName.Trim() == "subscribe")
   {//刚关注时的时间，用于欢迎词
    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 (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
    {
     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;
   }
 
    
   return wx;
  }
 
/// 
  /// 发送文字消息 
  /// 
  /// 获取的收发者信息 
  /// 内容 
  /// 
  private string sendTextMessage(wxmessage wx, string content)
  {
   string res = string.Format(@" ",
    wx.FromUserName, wx.ToUserName, DateTime.Now, content);
   return res;
  }

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