django rest_framework（三）——Requests和Responses

1.Requests和Responses对象的特点
1)Request对象
request.data #处理任意数据，接收'POST','PUT'和'PATCH'方法。
2)Response对象
HttpResponse只能返回string，而Response可以对任意类型自动处理，更加方便。
3)状态码
rest_framework提供了状态码，使用它们替换数字可读性更强。

2.rest_framework编写视图
rest_framework提供了两种方法来编写视图：
1)基于函数视图的@api_view装饰器
2)基于类视图的APIView

3.使用示例

import json

from rest_framework import status
from rest_framework.decorators import api_view from rest_framework.response import Response from snippets.models import Snippet from snippets.serializers import SnippetSerializer # Create your views here. @api_view(['GET', 'POST']) def snippet_list(request): if request.method == 'GET': snippets = Snippet.objects.all() serializer = SnippetSerializer(snippets, many=True) result_type = type(serializer.data) result = serializer.data return Response(result) if request.method == 'POST': data = request.data serializer = SnippetSerializer(data=data) if serializer.is_valid(): serializer.save() result = json.dumps(serializer.data) return Response(result, status = status.HTTP_201_CREATED) return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)