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")
   {//剛關注時的時間，用于歡迎詞
    string content = "";
    content = "/:rose歡迎北京永杰友信科技有限公司/:rose\n直接回復“你好”";
    res = sendTextMessage(wx, content);
   }
   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!");
    }
    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;
   }
 
    
   return wx;
  }
 
/// 
  /// 發(fā)送文字消息 
  /// 
  /// 獲取的收發(fā)者信息 
  /// 內容 
  /// 
  private string sendTextMessage(wxmessage wx, string content)
  {
   string res = string.Format(@" ",
    wx.FromUserName, wx.ToUserName, DateTime.Now, content);
   return res;
  }

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