/// <summary>
/// 将公众平台POST过来的数据转化成实体对象
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
public static ReceiveMessageBase ConvertMsgToObject(string token)
{
if (!CheckSignature(token))
{
return null;
}
string msgBody = string.Empty;
Stream s = System.Web.HttpContext.Current.Request.InputStream;
byte[] b = new byte[s.Length];
s.Read(b, 0, (int)s.Length);
msgBody = Encoding.UTF8.GetString(b);
if (string.IsNullOrEmpty(msgBody))
{
return null;
}
XmlDocument doc = null;
MsgType msgType = MsgType.UnKnown;
EventType eventType = EventType.UnKnown;
ReceiveMessageBase msg = new ReceiveMessageBase();
msg.MsgType = msgType;
msg.MessageBody = msgBody;
XmlNode node = null;
XmlNode tmpNode = null;
try
{
doc = new XmlDocument();
doc.LoadXml(msgBody);//读取XML字符串
XmlElement rootElement = doc.DocumentElement;
XmlNode msgTypeNode = rootElement.SelectSingleNode("MsgType");//获取字符串中的消息类型
node = rootElement.SelectSingleNode("FromUserName");
if (node != null)
{
msg.FromUserName = node.InnerText;
}
node = rootElement.SelectSingleNode("ToUserName");
if (node != null)
{
msg.ToUserName = node.InnerText;
}
node = rootElement.SelectSingleNode("CreateTime");
if (node != null)
{
msg.CreateTime = Convert.ToInt64(node.InnerText);
}
#region 获取具体的消息对象
string strMsgType = msgTypeNode.InnerText;
string msgId = string.Empty;
string content = string.Empty;
tmpNode = rootElement.SelectSingleNode("MsgId");
if (tmpNode != null)
{
msgId = tmpNode.InnerText.Trim();
}
switch (strMsgType)
{
case "text":
msgType = MsgType.Text;
tmpNode = rootElement.SelectSingleNode("Content");
if (tmpNode != null)
{
content = tmpNode.InnerText.Trim();
}
TextReceiveMessage txtMsg = new TextReceiveMessage()
{
CreateTime = msg.CreateTime,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
ToUserName = msg.ToUserName,
MsgId = Convert.ToInt64(msgId),
Content = content
};
return txtMsg;
case "image":
msgType = MsgType.Image;
ImageReceiveMessage imgMsg = new ImageReceiveMessage()
{
CreateTime = msg.CreateTime,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgId = Convert.ToInt64(msgId),
MsgType = msgType,
ToUserName = msg.ToUserName,
MediaId = rootElement.SelectSingleNode("MediaId").InnerText,
PicUrl = rootElement.SelectSingleNode("PicUrl").InnerText
};
return imgMsg;
case "voice":
msgType = MsgType.Voice;
XmlNode node1 = rootElement.SelectSingleNode("Recognition");
if (node1 != null)
{
msgType = MsgType.VoiceResult;
}
VoiceReceiveMessage voiceMsg = new VoiceReceiveMessage()
{
CreateTime = msg.CreateTime,
FromUserName = msg.FromUserName,
ToUserName = msg.ToUserName,
MessageBody = msg.MessageBody,
MsgId = Convert.ToInt64(msgId),
MsgType = msgType,
Recognition = node1 == null ? string.Empty : node1.InnerText.Trim(),
Format = rootElement.SelectSingleNode("Format").InnerText,
MediaId = rootElement.SelectSingleNode("MediaId").InnerText
};
return voiceMsg;
case "video":
msgType = MsgType.Video;
VideoReceiveMessage videoMsg = new VideoReceiveMessage()
{
CreateTime = msg.CreateTime,
FromUserName = msg.FromUserName,
MediaId = rootElement.SelectSingleNode("MediaId").InnerText,
MessageBody = msg.MessageBody,
MsgId = Convert.ToInt64(msgId),
MsgType = msgType,
ToUserName = msg.ToUserName,
ThumbMediaId = rootElement.SelectSingleNode("ThumbMediaId").InnerText
};
return videoMsg;
case "location":
msgType = MsgType.Location;
LocationReceiveMessage locationMsg = new LocationReceiveMessage()
{
CreateTime = msg.CreateTime,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgId = Convert.ToInt64(msgId),
MsgType = msgType,
ToUserName = msg.ToUserName,
Label = rootElement.SelectSingleNode("Label").InnerText,
Location_X = rootElement.SelectSingleNode("Location_X").InnerText,
Location_Y = rootElement.SelectSingleNode("Location_Y ").InnerText,
Scale = rootElement.SelectSingleNode("Scale").InnerText
};
return locationMsg;
case "link":
msgType = MsgType.Link;
LinkReceiveMessage linkMsg = new LinkReceiveMessage()
{
CreateTime = msg.CreateTime,
Description = rootElement.SelectSingleNode("Description").InnerText,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgId = Convert.ToInt64(msgId),
MsgType = msgType,
Title = rootElement.SelectSingleNode("Title").InnerText,
ToUserName = msg.ToUserName,
Url = rootElement.SelectSingleNode("Url ").InnerText
};
return linkMsg;
case "event":
msgType = MsgType.Event;
eventType = EventType.UnKnown;
msg.MsgType = msgType;
XmlNode eventNode = rootElement.SelectSingleNode("Event");
if (eventNode != null)
{
switch (eventNode.InnerText)
{
case "subscribe":
eventType = EventType.Subscribe;
tmpNode = rootElement.SelectSingleNode("EventKey");
var tmp = rootElement.SelectSingleNode("Ticket");
if (tmpNode != null && !string.IsNullOrEmpty(tmpNode.InnerText)) //&& tmpNode.InnerText.StartsWith("qrscene_")
{
//扫描二维码关注事件
ScanSubscribeEventMessage scanSubEvt = new ScanSubscribeEventMessage()
{
CreateTime = msg.CreateTime,
EventKey = rootElement.SelectSingleNode("EventKey").InnerText,
EventType = EventType.Subscribe,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
ToUserName = msg.ToUserName,
Ticket = rootElement.SelectSingleNode("Ticket").InnerText
};
return scanSubEvt;
}
else
{
//普通关注事件
SubscribeEventMessage subEvt = new SubscribeEventMessage()
{
CreateTime = msg.CreateTime,
EventType = EventType.Subscribe,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
ToUserName = msg.ToUserName
};
return subEvt;
}
case "unsubscribe":
eventType = EventType.UnSubscribe;
UnSubscribeEventMessage unSubEvt = new UnSubscribeEventMessage()
{
CreateTime = msg.CreateTime,
EventType = eventType,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
ToUserName = msg.ToUserName
};
return unSubEvt;
case "scan":
eventType = EventType.Scan;
ScanEventMessage scanEvt = new ScanEventMessage()
{
CreateTime = msg.CreateTime,
EventKey = rootElement.SelectSingleNode("EventKey").InnerText,
EventType = eventType,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
Ticket = rootElement.SelectSingleNode("Ticket").InnerText,
ToUserName = msg.ToUserName
};
return scanEvt;
case "LOCATION":
eventType = EventType.Location;
UploadLocationEventMessage locationEvt = new UploadLocationEventMessage()
{
CreateTime = msg.CreateTime,
EventType = eventType,
FromUserName = msg.FromUserName,
Latitude = rootElement.SelectSingleNode("Latitude").InnerText,
Longitude = rootElement.SelectSingleNode("Longitude").InnerText,
MessageBody = msg.MessageBody,
MsgType = msgType,
Precision = rootElement.SelectSingleNode("Precision").InnerText,
ToUserName = msg.ToUserName
};
return locationEvt;
case "CLICK":
eventType = EventType.Click;
MenuEventMessage menuEvt = new MenuEventMessage()
{
CreateTime = msg.CreateTime,
EventKey = rootElement.SelectSingleNode("EventKey").InnerText,
EventType = eventType,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = msgType,
ToUserName = msg.ToUserName
};
return menuEvt;
default:
EventMessage evtMsg = new EventMessage()
{
CreateTime = msg.CreateTime,
EventType = EventType.UnKnown,
FromUserName = msg.FromUserName,
MessageBody = msg.MessageBody,
MsgType = MsgType.Event,
ToUserName = msg.ToUserName
};
return evtMsg;
}
}
break;
}
msg.MsgType = msgType;
#endregion
}
finally
{
if (doc != null)
{
doc = null;
}
}
msg.MsgType = msgType;
return msg;
}
/// <summary>
/// 处理扫描二维码事件
/// </summary>
/// <param name="msg"></param>
/// <param name="args"></param>
/// <returns></returns>
public bool ProcessScanEvent(ScanEventMessage msg, params object[] args)
{
//这里回应1条文本消息，当然您也可以回应其他消息
MessageHandler.SendTextReplyMessage(msg.ToUserName, msg.FromUserName, "您扫描了我们的二维码");
return true;
}