zoukankan      html  css  js  c++  java
  • Django day29 视图,路由控制,响应器

    一:视图

       1、视图的几种方式:

        (1) 第一种

    from rest_framework.mixins import ListModelMixin, CreateModelMixin
        class PublishView(GenericAPIView, ListModelMixin, CreateModelMixin):
            queryset = Publish.objects.all()
            serializer_class = PublishSerializers
                
            def get(self, request):
            return self.list(request)
                
            def post(self, request):
            # 添加一条数据
            return self.create(request)

        (2) 第二种

    ListCreateAPIView 继承了GenericAPIView, ListModelMixin, CreateModelMixin
        class PublishView(GenericAPIView, ListModelMixin, CreateModelMixin):
        class PublishView(ListCreateAPIView):
            queryset = Publish.objects.all()
            serializer_class = PublishSerializers

        (3) 第三种

    # 路由:
    url(r'^publish/$', views.PublishView.as_view({'get': 'list', 'post': 'create'})),
            url(r'^publish/(?P<pk>d+)', views.PublishView.as_view({'get': 'retrieve', 'put': 'update','delete':'destroy'})),
        from rest_framework.viewsets import ModelViewSet
         class PublishView(ModelViewSet):
            queryset = Publish.objects.all()
            serializer_class = PublishSerializers

      2、最终:ViewSetMixin 它有什么作用 ?

        用了它之后,视图类中不需要写get,post,put方法了,自己定义方法就可以了让请求方法对应到自己定义的方法上,配置路由

    二:路由控制 

      1、一种基本路由:url(r'^publish/$', views.PublishView.as_view()),
      2、半自动路径:views.PublishView.as_view({'get': 'list', 'post': 'create'}))
        (1)必须继承:ViewSetMixin
        (2)继承ViewSetMixin的先后顺序
      3、全自动路由:(基本不用)

    from rest_framework import routers
    # 生成一个router对象
    router=routers.DefaultRouter()
    # 需要传两个参数,第一个参数就是匹配的路径,第二个参数,是视图类
    router.register('publish',views.PublishView)
                    
    url('', include(router.urls)),
    #自动生成四个路由(PublishView必须继承ModelViewSet)

    三:响应器:(基本上不需要你配置)

      1、局部配置
        视图类中:

    renderer_classes=[JSONRenderer,BrowsableAPIRenderer]

      2、全局配置
        在setting中:

    REST_FRAMEWORK = {
        'DEFAULT_RENDERER_CLASSES':['rest_framework.renderers.JSONRenderer']
    }
  • 相关阅读:
    AMBA总线介绍
    placeholder不显示的解决办法(支持ie8以上)
    通过新浪微博API获取数据
    PHP时间运算
    PHP队列
    stream_context_create()
    http_build_query()
    shuffle()
    session_id()
    session_name()
  • 原文地址:https://www.cnblogs.com/zedong/p/10132200.html
Copyright © 2011-2022 走看看