.Net實現微信公共服務平臺開發中的發送文本消息功能，具體內容如下

首先建立一個微信消息類。 

 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; }  } 

 后臺代碼如下： 

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;  }///   /// 發送文字消息   ///   /// 獲取的收發者信息   /// 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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