Django实现自定义404，500页面教程

1.创建一个项目

django-admin.py startproject HelloWorld

2.进入HelloWorld项目,在manage.py的同一级目录，创建templates目录，并在templates目录下新建404.html，500.html两个文件。

3.修改settings.py

（1.）DEBUG修改为False,（2.）ALLOWED_HOSTS添加指定域名或者IP，（3.）指定模板路径 'DIRS' : [os.path.join(BASE_DIR,'templates')],

    # SECURITY WARNING: don't run with debug turned on in production!


    DEBUG = False


    ALLOWED_HOSTS = ['localhost','www.example.com', '127.0.0.1']



    TEMPLATES = [


     {


      'BACKEND': 'django.template.backends.django.DjangoTemplates',


      'DIRS': [os.path.join(BASE_DIR, 'templates')],


      'APP_DIRS': True,


      'OPTIONS': {


       'context_processors': [


        'django.template.context_processors.debug',


        'django.template.context_processors.request',


        'django.contrib.auth.context_processors.auth',


        'django.contrib.messages.context_processors.messages',


       ],


      },


     },


    ]

4.新建一个views.py

    from django.http import HttpResponse

    from django.shortcuts import render_to_response

    from django.views.decorators.csrf import csrf_exempt

    @csrf_exempt

    def hello(request):

     return HttpResponse('Hello World!')

    @csrf_exempt

    def page_not_found(request):

     return render_to_response('404.html')

    @csrf_exempt

    def page_error(request):

     return render_to_response('500.html')

5.修改urls.py，代码如下

    from django.conf.urls import url
    from django.contrib import admin
    import HelloWorld.views as view
    urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^test$', view.hello),
    ]
    handler404 = view.page_not_found
    handler500 = view.page_error

重新编译，重启uwsgi，输入localhost/HelloWorld/test，显示'Hello World!',输入其它地址会显示404.html内容,如果出错则显示500.html内容。