def responseMsg(self):
        encrypt_type = self.request.GET.get(\'encrypt_type\', None)
        pc, postStr = self._encrypt_data(encrypt_type)
        postObj = self._parseMsg(postStr)
        print(postObj)
        msg_type = postObj[\'MsgType\']
        result = \'\'
        if msg_type == \'text\':
            result = self._receiveText(postObj)
        elif msg_type == \'image\':
            result = self._receiveImage(postObj)
        elif msg_type == \'voice\':
            result = self._receiveVoice(postObj)
        elif msg_type == \'video\' or msg_type == \'shortvideo\':
            print(\'视频\')
            print(msg_type)
            result = self._receiveVideo(postObj)
        elif msg_type == \'location\':
            result = self._receiveLocation(postObj)
        elif msg_type == \'link\':
            result = self._receiveLink(postObj)
        elif msg_type == \'event\':
            result = self._receiveEvent(postObj)
        else:
            result = \'不能识别的 msg type: \' + msg_type

    def _transmitText(self,obj,content):
        xmlTpl =\'\'\'
        <xml>
  <ToUserName><![CDATA[{0}]]></ToUserName>
  <FromUserName><![CDATA[{1}]]></FromUserName>
  <CreateTime>{2}</CreateTime>
  <MsgType><![CDATA[text]]></MsgType>
  <Content><![CDATA[{3}]]></Content>
</xml>
        \'\'\'
        result = xmlTpl.format(obj[\'FromUserName\'],obj[\'ToUserName\'],int(time.time()),content)
        return result

\'\'\'微信公众号接收到的用户消息类型
https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Receiving_standard_messages.html
\'\'\'

import xml.etree.ElementTree as ET

def parse_xml(web_data):
    if len(web_data) == 0:
        return None
    xmlData = ET.fromstring(web_data)
    msg_type = xmlData.find(\'MsgType\').text
    if msg_type == \'text\':
        return ReceiveTextMsg(xmlData)
    elif msg_type == \'image\':
        return ReceiveImageMsg(xmlData)
    elif msg_type == \'voice\':
        return ReceiveVoiceMsg(xmlData)
    elif msg_type in (\'video\',\'shortvideo\'):
        return ReceiveVideoMsg(xmlData)
    elif msg_type == \'location\':
        return ReceiveLocationMsg(xmlData)
    elif msg_type == \'link\':
        return ReceiveLinkMsg(xmlData)
    else:
        print(\'不能识别的消息类型:\'+ msg_type)
        return None

class ReceiveMsg(object):
    \'\'\'基类\'\'\'
    def __init__(self,xmlData):
        self.ToUserName = xmlData.find(\'ToUserName\').text
        self.FromUserName = xmlData.find(\'FromUserName\').text
        self.CreateTime = xmlData.find(\'CreateTime\').text
        self.MsgType = xmlData.find(\'MsgType\').text
        self.MsgId = xmlData.find(\'MsgId\').text

class ReceiveTextMsg(ReceiveMsg):
    \'\'\'文本消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveTextMsg,self).__init__(xmlData)
        self.Content = xmlData.find(\'Content\').text

class ReceiveImageMsg(ReceiveMsg):
    \'\'\'图片消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveImageMsg,self).__init__(xmlData)
        self.PicUrl = xmlData.find(\'PicUrl\').text
        self.MediaId = xmlData.find(\'MediaId\').text

class ReceiveVoiceMsg(ReceiveMsg):
    \'\'\'语音消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveVoiceMsg,self).__init__(xmlData)
        self.Format = xmlData.find(\'Format\').text
        self.MediaId = xmlData.find(\'MediaId\').text
        self.Recognition = \'\'
        if xmlData.find(\'Recognition\') is not None:
            self.Recognition = xmlData.find(\'Recognition\').text

class ReceiveVideoMsg(ReceiveMsg):
    \'\'\'视频消息和小视频消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveVideoMsg,self).__init__(xmlData)
        self.ThumbMediaId = xmlData.find(\'ThumbMediaId\').text
        self.MediaId = xmlData.find(\'MediaId\').text

class ReceiveLocationMsg(ReceiveMsg):
    \'\'\'地理位置消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveLocationMsg,self).__init__(xmlData)
        self.Location_X = xmlData.find(\'Location_X\').text
        self.Location_Y = xmlData.find(\'Location_Y\').text
        self.Scale = xmlData.find(\'Scale\').text
        self.Label = xmlData.find(\'Label\').text

class ReceiveLinkMsg(ReceiveMsg):
    \'\'\'链接消息\'\'\'
    def __init__(self,xmlData):
        super(ReceiveLinkMsg,self).__init__(xmlData)
        self.Title = xmlData.find(\'Title\').text
        self.Description = xmlData.find(\'Description\').text
        self.Url = xmlData.find(\'Url\').text

class ReceiveEventMsg(ReceiveMsg):
    \'\'\'普通事件\'\'\'
    def __init__(self, xmlData):
        super(ReceiveEventMsg,self).__init__(xmlData)
        self.Event = xmlData.find(\'Event\').text
        self.EventKey = (False,\'\')
        if xmlData.find(\'EventKey\') is not None:
            self.EventKey =(True, xmlData.find(\'EventKey\').text)

        self.Ticket = (False,\'\')
        if xmlData.find(\'Ticket\') is not None:
            self.EventKey =(True, xmlData.find(\'Ticket\').text)

class ReveiveLocationEventMsg(ReceiveEventMsg):
    \'\'\'上报地理位置事件\'\'\'
    def __init__(self,xmlData):
        super(ReveiveLocationEventMsg,self).__init__(xmlData)
        self.Latitude = xmlData.find(\'Latitude\').text
        self.Longitude = xmlData.find(\'Longitude\').text
        self.Precision = xmlData.find(\'Precision\').text