微信公众平台开发之语音识别.Net代码解析

时间:2022-04-11 00:58:57

语音识别这个功能属于高级功能,必须微信实名认证后才能实现,认证费用300元/年,如果你作为开发者可以申请测试帐号,也是可以的。首先建立一个微信消息类,这个类比之前多了一个属性。

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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; }
 }

语音识别是微信自带的功能,非常强大无需我们做过多的操作:

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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 if (wx.MsgType == "voice")//识别消息类型为语音
       {
         res = sendTextMessage(wx, wx.Recognition);//wx.Recognition就是语音识别的结果了,我们直接引用,以文本形式反馈就OK了
 
       }
       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;
     }
     if (wx.MsgType.Trim() == "voice")//如果是语音消息的话就把识别结果赋值给实体类的相应属性Recognition
     {
       wx.Recognition = xml.SelectSingleNode("xml").SelectSingleNode("Recognition").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;
   }

 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。