flask開發微信公衆號

時間 2019-11-16

原文原文鏈接

1.進入微信公衆號首頁，進行註冊登陸 https://mp.weixin.qq.com/python

2.進入我的首頁，進行公衆號設置web

可參照公衆號文檔進行開發json

3.配置服務器 服務器地址(URL) 令牌(Token)
api

import hashlib
@app.route('/wx',methods=['GET','POST'])
def wx():
    if request.method == 'GET':
        signature = request.args.get('signature')
        timestamp = request.args.get('timestamp')
        echostr = request.args.get('echostr')
        nonce = request.args.get('nonce')
        token = 'mytoken1'
        if len(request.args)==0:
            return "hello, this is handle view"
        list = [token, timestamp, nonce]
        list.sort()
        s = list[0]+list[1]+list[2]
        hashcode = hashlib.sha1(s.encode('utf-8')).hexdigest()
        if hashcode == signature:
            return echostr
        else:
            print('驗證失敗')
            return ""

從新啓動成功後（python main.py 80），點擊提交按鈕。若提示」token驗證失敗」, 請認真檢查代碼或網絡連接等。若token驗證成功，會自動返回基本配置的主頁面，點擊啓動按鈕安全

4.接收用戶發送的消息 (即粉絲給公衆號發送的文本消息)
公衆平臺發送的xml至開發者服務器。
形式：服務器

# 接收
        import xml.etree.cElementTree as ET
        
        xml = ET.fromstring(request.data)
        toUser = xml.find('ToUserName').text
        fromUser = xml.find('FromUserName').text
        msgType = xml.find("MsgType").text

5.自動回覆文本消息微信

if msgType == 'text':
		......
        reply = '''<xml>
                            <ToUserName><![CDATA[%s]]></ToUserName>
                            <FromUserName><![CDATA[%s]]></FromUserName>
                            <CreateTime>%s</CreateTime>
                            <MsgType><![CDATA[text]]></MsgType>
                            <Content><![CDATA[%s]]></Content>
                            </xml>'''
        response = make_response(reply % (fromUser, toUser, str(int(time.time())), end))
        response.headers['content-type'] = 'application/xml'
        return response

6. 實現「圖」尚往來網絡

elif msgType == 'image':
            img = xml.find('MediaId').text
            reply = '''<xml>
                                <ToUserName><![CDATA[%s]]></ToUserName>
                                <FromUserName><![CDATA[%s]]></FromUserName>
                                <CreateTime>%s</CreateTime>
                                <MsgType><![CDATA[image]]></MsgType>
                                 <Image>
                                 <MediaId><![CDATA[%s]]></MediaId>
                                 </Image>
                                </xml>'''
            response = make_response(reply % (fromUser, toUser, str(int(time.time())), img))
            response.headers['content-type'] = 'application/xml'
            return response

7.臨時素材app

class Basic(object):
    def __init__(self):
        self.accessToken = ''
        self.leftTime = ''

    def real_get_access_token(self):
        AppID = '....'
        AppSecret = '...'
        postUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s" % (AppID, AppSecret)
        resp = requests.get(url=postUrl)
        urlResp = json.loads(resp.text)
        access_token = urlResp['access_token']
        print('access_token是',access_token)
        return access_token

class Media(object):
    def __init__(self):
        self.access_token = Basic().real_get_access_token()

    def upload(self,type='image',path=None):
        files = {'apk': open(path, 'rb')}
        data = {'enctype': 'multipart/form-data'}
        post_url = 'https://api.weixin.qq.com/cgi-bin/media/upload?access_token=%s&type=%s'%(self.access_token,type)
        resp = requests.post(url=post_url,data=data,files=files)
        urlResp = json.loads(resp.text)
        print(urlResp)

media = Media()
media.upload(path='123.png')

8.關注和取消事件

用戶在關注與取消關注公衆號時，微信會把這個事件推送到開發者填寫的URL。方便開發者給用戶下發歡迎消息或者作賬號的解綁。爲保護用戶數據隱私，開發者收到用戶取消關注事件時須要刪除該用戶的全部信息。

微信服務器在五秒內收不到響應會斷掉鏈接，而且從新發起請求，總共重試三次。

視圖處理：

elif msgType == 'event':
            event = xml.find('Event').text
            if event == 'subscribe':   #關注
                msg = '輸入想要視頻資源關鍵字試試~'  
            else:  #取消關注
                msg = '期待你的下次關注~'
            reply = '''<xml>
                                <ToUserName><![CDATA[%s]]></ToUserName>
                                <FromUserName><![CDATA[%s]]></FromUserName>
                                <CreateTime>%s</CreateTime>
                                <MsgType><![CDATA[text]]></MsgType>
                                <Content><![CDATA[%s]]></Content>
                                </xml>'''
            response = make_response(reply % (fromUser, toUser, str(int(time.time())), msg))
            response.headers['content-type'] = 'application/xml'
            return response

9.回覆圖文消息

reply = '''<xml>
                                <ToUserName><![CDATA[%s]]></ToUserName>
                                <FromUserName><![CDATA[%s]]></FromUserName>
                                <CreateTime>%s</CreateTime>
                                <MsgType><![CDATA[news]]></MsgType>
                                <ArticleCount>1</ArticleCount><Articles><item><Title><![CDATA[%s]]></Title>
                                <Description><![CDATA[%s]]></Description>
                                <PicUrl><![CDATA[%s]]></PicUrl><Url>
                                <![CDATA[%s]]></Url></item></Articles>
                                </xml>'''
            response = make_response(reply % (fromUser, toUser, int(time.time()), 'voice','voice Description','http://mmbiz.qpic.cn/mmbiz_jpg/jeXD1dScd9sHxTr4WGwywQiabrcrErmR9p86ZUDthLWcImgLepRMxYrhrVMemibp4nCHpyHFPn7yvYv5A49miarKQ/0?wx_fmt=jpeg','https://www.baidu.com'))
            response.headers['content-type'] = 'application/xml'
            return response

截圖：
10.js接口安全域名