• day93之微信推送


    python之微信推送详解

    用什么推送
        -邮件
        -微信推送
        -短信推送
    微信推送
       -公众号(不能主动给用户发消息)
         -认证的公众号:需要营业执照,需要交钱,可以发多篇文章
         -未认证的公众号:一天只能发一篇文章
       -服务号(微信推送)
         -需要申请,需要认证
         -可以主动给用户推送消息
         -能给推送的人,必须关注我的服务号
         -沙箱环境
       -企业号
         -企业里用的:
        -你们所见的二维码:其实就是一个url地址
        -咱们在前端通过url(https://open.weixin.qq.com/connect/oauth2.....)生成一个二维码
      -注意*****修改:网页授权获取用户基本信息

    本次使用的是基于服务号的推送!!!

      首先我们需要让用户关注我们,但是关注我们之后用户只是成为了我们服务号下的粉丝,我们并不能直接给他们推送我们,需要在数据库中存储用户的唯一ID,当然我们也不能直接弹出输入框让用户自己输入吧,所以我们需要循循善诱的让用户再次扫码让我们后台存储其ID。

      全场最佳分析图:(注:只是自动存储用户唯一ID“open-id”的流程图)

    文件目录图:

    视图层:

    import json
    import functools
    import requests
    from django.conf import settings
    from django.shortcuts import render, redirect, HttpResponse
    from django.http import JsonResponse
    from app01 import models
    # 沙箱环境地质:https://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=sandbox/login
    def index(request):
        obj = models.UserInfo.objects.get(id=1)
        return render(request,'index.html',{'obj':obj})
    
    
    def auth(func):
        def inner(request, *args, **kwargs):
            user_info = request.session.get('user_info')
            if not user_info:
                return redirect('/login/')
            return func(request, *args, **kwargs)
    
        return inner
    
    
    def login(request):
        """
        用户登录
        :param request: 
        :return: 
        """
        # models.UserInfo.objects.create(username='luffy',password=123)
    
        if request.method == "POST":
            user = request.POST.get('user')
            pwd = request.POST.get('pwd')
            obj = models.UserInfo.objects.filter(username=user, password=pwd).first()
            if obj:
                request.session['user_info'] = {'id': obj.id, 'name': obj.username, 'uid': obj.uid}
                return redirect('/bind/')
        else:
            return render(request, 'login.html')
    
    
    @auth
    def bind(request):
        """
        用户登录后,关注公众号,并绑定个人微信(用于以后消息推送)
        :param request: 
        :return: 
        """
        return render(request, 'bind.html')
    
    
    @auth
    def bind_qcode(request):
        """
        生成二维码
        :param request: 
        :return: 
        """
        ret = {'code': 1000}
        try:
            access_url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={appid}&redirect_uri={redirect_uri}&response_type=code&scope=snsapi_userinfo&state={state}#wechat_redirect"
            access_url = access_url.format(
                # 商户的appid
                appid=settings.WECHAT_CONFIG["app_id"], # 'wx6edde7a6a97e4fcd',
                # 回调地址
                redirect_uri=settings.WECHAT_CONFIG["redirect_uri"],
                # 当前登录用户的唯一id
                state=request.session['user_info']['uid'] # 为当前用户生成MD5值
            )
            ret['data'] = access_url
        except Exception as e:
            ret['code'] = 1001
            ret['msg'] = str(e)
    
        return JsonResponse(ret)
    
    
    def callback(request):
        """
        用户在手机微信上扫码后,微信自动调用该方法。
        用于获取扫码用户的唯一ID,以后用于给他推送消息。
        :param request: 
        :return: 
        """
        code = request.GET.get("code")
    
        # 用户md5值,用户唯一id
        state = request.GET.get("state")
    
        # 获取该用户openId(用户唯一,用于给用户发送消息)
        # request模块朝https://api.weixin.qq.com/sns/oauth2/access_token地址发get请求
        res = requests.get(
            url="https://api.weixin.qq.com/sns/oauth2/access_token",
            params={
                "appid": 'wx3e1f0883236623f9',
                "secret": '508ec4590702c76e6863be6df01ad95a',
                "code": code,
                "grant_type": 'authorization_code',
            }
        ).json()
        # res.data   是json格式
        # res=json.loads(res.data)
        # res是一个字典
        # 获取的到openid表示用户授权成功
        openid = res.get("openid")
        if openid:
            models.UserInfo.objects.filter(uid=state).update(wx_id=openid)
            response = "<h1>授权成功 %s </h1>" % openid
        else:
            response = "<h1>用户扫码之后,手机上的提示</h1>"
        return HttpResponse(response)
    
    
    def sendmsg(request):
        def get_access_token():
            """
            获取微信全局接口的凭证(默认有效期俩个小时)
            如果不每天请求次数过多, 通过设置缓存即可
            """
            result = requests.get(
                url="https://api.weixin.qq.com/cgi-bin/token",
                params={
                    "grant_type": "client_credential",
                    "appid": settings.WECHAT_CONFIG['app_id'],
                    "secret": settings.WECHAT_CONFIG['appsecret'],
                }
            ).json()
            if result.get("access_token"):
                access_token = result.get('access_token')
            else:
                access_token = None
            return access_token
    
        access_token = get_access_token()
    
        openid = models.UserInfo.objects.get(id=1).wx_id
    
        def send_custom_msg():
            body = {
                "touser": openid,
                "msgtype": "text",
                "text": {
                    "content": 'lqz大帅哥'
                }
            }
            response = requests.post(
                url="https://api.weixin.qq.com/cgi-bin/message/custom/send",
                # 放到路径?后面的东西
                params={
                    'access_token': access_token
                },
                # 这是post请求body体中的内容
                data=bytes(json.dumps(body, ensure_ascii=False), encoding='utf-8')
            )
            # 这里可根据回执code进行判定是否发送成功(也可以根据code根据错误信息)
            result = response.json()
            return result
    
        def send_template_msg():
            """
            发送模版消息
            """
            res = requests.post(
                url="https://api.weixin.qq.com/cgi-bin/message/template/send",
                params={
                    'access_token': access_token
                },
                json={
                    "touser": openid,
                    "template_id": 'IaSe9s0rukUfKy4ZCbP4p7Hqbgp1L4hG6_EGobO2gMg',
                    "data": {
                        "first": {
                            "value": "lqz",
                            "color": "#173177"
                        },
                        "keyword1": {
                            "value": "大帅哥",
                            "color": "#173177"
                        },
                    }
                }
            )
            result = res.json()
            return result
    
        result = send_custom_msg()
    
        if result.get('errcode') == 0:
            return HttpResponse('发送成功')
        return HttpResponse('发送失败')
    View Code

    路由层:

    from django.conf.urls import url
    from django.contrib import admin
    from app01 import views
    
    urlpatterns = [
        url(r'^admin/', admin.site.urls),
        url(r'^login/$', views.login),
        url(r'^index/$', views.index),
        url(r'^bind/$', views.bind),
        url(r'^bind_qcode/$', views.bind_qcode),
        url(r'^callback/$', views.callback),
        url(r'^sendmsg/$', views.sendmsg),
    ]
    View Code

    模板层:

    bing:

    {% load staticfiles %}
    
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    <div style=" 600px;margin: 0 auto">
        <div>
            <h3>第一步:关注微信服务号</h3>
            <img style="height: 100px; 100px" src="{% static "img/luffy.jpeg" %}">
        </div>
        <input type="button" value="下一步【获取绑定二维码】" onclick="getBindUserQcode()">
        <div>
            <h3>第二步:绑定个人账户</h3>
            <div id="qrcode" style=" 250px;height: 250px;background-color: white;margin: 100px auto;"></div>
        </div>
    </div>
    <script src="{% static "js/jquery.min.js" %}"></script>
    {#qrcode 可以生成二维码 #}
    <script src="{% static "js/jquery.qrcode.min.js" %}"></script>
    <script src="{% static "js/qrcode.js" %}"></script>
    <script>
        function getBindUserQcode() {
            $.ajax({
                url: '/bind_qcode/',
                type: 'GET',
                success: function (result) {
                    console.log(result);
                    //result.data 取出来的是什么?是后台生成的一个地址
                    //通过js生成一个二维码图片放到div中
                    $('#qrcode').empty().qrcode({text: result.data});
                }
            });
        }
    </script>
    
    </body>
    </html>
    View Code

    index:

    <!DOCTYPE html>
    <html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>
        <h1>{{ obj.username }} -> {{ obj.wx_id }}</h1>
    </body>
    </html>
    View Code

    login:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <form action="/login/" method="post">
            {% csrf_token %}
            <input type="text" name="user" placeholder="用户名">
            <input type="password" name="pwd" placeholder="密码">
            <input type="submit" value="登录">
        </form>
    </body>
    </html>
    View Code
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  • 原文地址:https://www.cnblogs.com/yaoxiaofeng/p/10187485.html
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