微信公眾平臺開發之語音識別.Net代碼解析

 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 Recognition { get; set; }
 public string EventKey { get; set; } 
 } 

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 if (wx.MsgType == "voice")//識別消息類型為語音
 {
 res = sendTextMessage(wx, wx.Recognition);//wx.Recognition就是語音識別的結果了，我們直接引用，以文本形式反饋就OK了

 }
 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;
 }
 if (wx.MsgType.Trim() == "voice")//如果是語音消息的話就把識別結果賦值給實體類的相應屬性Recognition 
 {
 wx.Recognition = xml.SelectSingleNode("xml").SelectSingleNode("Recognition").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;
 }