申请到自己的公众号以及有了自己的服务器后，可以编写并配置自己的微信开发接口.

如果没有服务器，可以去搜索小米球，作为临时学习用。非常方便。

在django里面定义处理微信访问的视图

@csrf_exempt
def wechatindex(request):
    wechatObj = wechatCallbackapiTest(request)
    if request.GET.get(\'echostr\',None):
        echostr = wechatObj.valid()
        return HttpResponse(echostr)
    else:
        #POST
        print(request.body)
        result = wechatObj.responseMsg()
        print(result)
        return HttpResponse(result)

微信访问的url都带有 timestamp, signature, nonce 等微信验证需要的参数

    def _checkSignature(self):
        signature = self.request.GET[\'signature\']
        timestamp = self.request.GET[\'timestamp\']
        nonce = self.request.GET[\'nonce\']
        list = [TOKEN,timestamp,nonce]
        list.sort()
        sha1 = hashlib.sha1()
        sha1.update(list[0].encode(\'utf-8\'))
        sha1.update(list[1].encode(\'utf-8\'))
        sha1.update(list[2].encode(\'utf-8\'))
        hashcode = sha1.hexdigest()
        print(\'hashcode:\' + hashcode)
        print(\'signature:\' + signature)
        if hashcode == signature:
            return True
        else:
            return False
 def valid(self):
        echoStr = self.request.GET[\'echostr\']
        if self._checkSignature():
            return echoStr #验证成功的话，要返回 echoStr到微信公众平台
        else:
            return \'\'

解析用户发送的消息。用户post的消息存在 request.body里面

 def _parseMsg(self,xmlbody):
        \'\'\'解析用户发送的消息\'\'\'
        try:
            xmlData = ET.fromstring(xmlbody)
            msg ={}
            msg[\'ToUserName\'] = xmlData.find(\'ToUserName\').text
            msg[\'FromUserName\'] = xmlData.find(\'FromUserName\').text
            msg[\'CreateTime\'] = xmlData.find(\'CreateTime\').text
            msg[\'MsgType\'] = xmlData.find(\'MsgType\').text
            msg[\'MsgId\'] = xmlData.find(\'MsgId\').text
            if msg[\'MsgType\']  == \'text\':
                msg[\'Content\'] = xmlData.find(\'Content\').text
            elif msg[\'MsgType\']  == \'image\':
                msg[\'PicUrl\'] = xmlData.find(\'PicUrl\').text
                msg[\'MediaId\'] = xmlData.find(\'MediaId\').text
            elif msg[\'MsgType\']  == \'voice\':
                msg[\'MediaId\'] = xmlData.find(\'MediaId\').text
                msg[\'Format\'] = xmlData.find(\'Format\').text
                msg[\'Recognition\'] = xmlData.find(\'Recognition\').text
            elif msg[\'MsgType\']  == \'video\':
                msg[\'MediaId\'] = xmlData.find(\'MediaId\').text
                msg[\'ThumbMediaId\'] = xmlData.find(\'ThumbMediaId\').text
            elif msg[\'MsgType\']  == \'location\':
                msg[\'MediaId\'] = xmlData.find(\'MediaId\').text
                msg[\'Location_X\'] = xmlData.find(\'Location_X\').text  # 地理位置消息
                msg[\'Location_Y\'] = xmlData.find(\'Location_Y\').text
                msg[\'Scale\'] = xmlData.find(\'Scale\').text
                msg[\'Label\'] = xmlData.find(\'Label\').text
            elif msg[\'MsgType\']  == \'link\':
                msg[\'Title\'] = xmlData.find(\'Title\').text
                msg[\'Description\'] = xmlData.find(\'Description\').text
                msg[\'Url\'] = xmlData.find(\'Url\').text

            return msg
        except Exception as e:
            raise  e

公众号回复用户消息的简单示例：

 def responseMsg(self):
        if self.request.body !=\'\':
            postObj = self._parseMsg(self.request.body)
            keyword = postObj[\'Content\']
            textTpl = \'\'\'
            <xml>
<ToUserName><![CDATA[{0}]]></ToUserName>
<FromUserName><![CDATA[{1}]]></FromUserName>
<CreateTime>{2}</CreateTime>
<MsgType><![CDATA[{3}]]></MsgType>
<Content><![CDATA[{4}]]></Content>
</xml>
            \'\'\'
            if keyword == \'?\' or keyword == \'？\':
                result = textTpl.format(postObj[\'FromUserName\'],
                                        postObj[\'ToUserName\'],
                                        int(time.time()),
                                        \'text\',
                                        time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime())
                                        )
                return result
            else:
                return \'\'

版权声明：本文为ahMay原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://www.cnblogs.com/ahMay/p/12033303.html