Django笔记(一)用户登陆和模板渲染的实现

class LoginView(View):
    def get(self,request):
        return render(request,‘login.html‘)

    def post(self,request):
        login_form=LoginForm(request.POST)
        if login_form.is_valid():
            user_name=request.POST.get(‘username‘,‘‘)
            pass_word=request.POST.get(‘password‘,‘‘)
            user=authenticate(username=user_name,password=pass_word)
            if user is not None: #验证user是否非空
                login(request,user) #执行登陆
                return render(request,‘index.html‘)
            else:#user验证不合法，返回登陆页
                context={
                    ‘error_msg‘:‘密码或账号错误‘
                }
                return render(request,‘login.html‘,context)
        else:# login_form用户名和密码不合法, 返回登录页面, 并提示错误信息

            return render(request,‘login.html‘,{‘login_form‘:login_form})