dj鲜生-26-登陆时-记住用户名的操作

login页给复选框加上name

流程图

post请求

get请求

视图类代码

# /user/login
class LoginView(View):
    def get(self, request):
        print('get method')
        print('cookie...',  request.COOKIES)
        print('cookie中的remember值', request.COOKIES.get("remember"))

        # 获取用户名
        if "username" in request.COOKIES:
            # {"username":"pyhui"}
            username = request.COOKIES.get("username")
            username = username
            checked = "checked"
        else:
            # {}
            print('cookie里没有存入username')
            username = ""
            checked = ""
        # 渲染页面
        return render(request, "login.html",
                      {"username":username, "checked": checked})

    def post(self, request):
        # 用户登陆
        print('post method')
        print('获取cookie', request.COOKIES)
        print('cookie中的remember值', request.POST.get("remember"))

        # 1，接收数据
        username = request.POST.get("username")
        password = request.POST.get("password")
        print(username)
        print(password)
        # 2，校验数据
        from django.contrib.auth import authenticate
        user = authenticate(username=username, password=password)
        # 如果用户验证成功
        if user is not None:
            print('user, is active', user, user.is_active)
            # 如果用户已激活
            if user.is_active:
                # 3，登陆逻辑
                print('登陆用户')
                from django.contrib.auth import login
                login(request, user)
                print('页面跳转')

                response = redirect(reverse("goods:index"))
                remember = request.POST.get("remember")
                if remember == 'on':
                    # 响应对象.set_cookie(键，值，过期时间)
                    response.set_cookie("username", username, max_age=7*24*3600)
                else:
                    response.delete_cookie("username")

                return response
            # 用户未激活
            else:
                # 用户未激活，给他一个链接，让用户点击这个链接就可以发送一个激活邮件
                html = "<a href='/user/resend_active_mail/{}/'>重新发送激活码</a>".format(user.id)
                return render(request, "login.html", {"errmsg": html})
        # 如果用户验证不成功
        else:
            return render(request, "login.html", {"errmsg": "用户名或者密码错误"})

模板页面的布置