class LoginView(View):
    def get(self,request):
        return render(request,'login.html')
    def post(self,request):
        data = request.POST
        username = data.get("username")
        password = data.get("pwd")
        remembered = data.get("remembered")
        if not all([username,password]):
            return render(request,'login.html',{'error':'请输入正确的账号或密码'})

　　　　　#验证用户和密码
        user = authenticate(username=username,password=password)
        if not user:
            return render(request, 'login.html', {'error': '请输入正确的账号或密码'})

        #是否激活
        if user.is_active == False:
            return render(request, 'login.html', {'error': '邮箱未激活'})
　　　　
　　　　　#登录
        login(request,user)

        #记住用户名     session存储位置 mysql--...-- django_session里
        if remembered != 'on':
            request.session.set_expiry(0)
        else:
            request.session.set_expiry(3600*24)

        response = redirect('/goods/index')
        return response

#退出登陆 清空session
class LogoutUser(View):
    def get(self,request):
        logout(request)
        return redirect('/goods/index')