如何覆盖Django的默认响应代码？

from django.http import HttpResponse

def my_view(request):
    return HttpResponse("Hello, World!", status=201)

from django.http import HttpResponseForbidden
from django.views import View

class MyView(View):
    def dispatch(self, request, *args, **kwargs):
        if not request.user.is_authenticated:
            return HttpResponseForbidden("You are not allowed to access this page.")
        return super().dispatch(request, *args, **kwargs)

# 在你的应用目录下创建一个文件，例如 `exceptions.py`
from django.http import JsonResponse

def custom_exception_handler(exc, context):
    response = JsonResponse({'error': str(exc)}, status=500)
    return response

# settings.py
handler500 = 'your_app.exceptions.custom_exception_handler'

from django.shortcuts import render

def my_view(request):
    response = render(request, 'my_template.html', {'key': 'value'}, status=201)
    return response