<SPAN style="FONT-SIZE: 13px">request.POST # Only handles <SPAN style="COLOR: #ff0000">form data</SPAN>. Only works for '<SPAN style="COLOR: #ff0000">POST</SPAN>' method. 
request.data # Handles <SPAN style="COLOR: #ff0000">arbitrary(任意的) data</SPAN>. Works for '<SPAN style="COLOR: #ff0000">POST', 'PUT' and 'PATCH</SPAN>' methods. 
</SPAN> 

@csrf_exempt
def snippet_list(request):
 """
 because we want to be able to POST to this view from clients
 that won't have a CSRF token we need to mark the view as csrf_exempt
 List all code snippets, or create a new snippet.
 """
 if request.method == "GET":
  snippets = Snippet.objects.all()
  serializer = SnippetSerializer(snippets, many=True)
  return JsonResponse(serializer.data, safe=False)

 elif request.method == "POST":
  data = JSONParser().parse(request)
  serializer = SnippetSerializer(data=data)
  if serializer.is_valid():
   serializer.save()
   return JsonResponse(serializer.data, status=201)
  return JsonResponse(serializer.errors, status=400)

<SPAN style="FONT-SIZE: 13px">return Response(data) # <SPAN style="COLOR: #ff0000">Renders to content type as requested by the client. 
</SPAN></SPAN> 

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


@api_view(['GET', 'POST'])
def snippet_list(request):
 """
 List all code snippets, or create a new snippet.
 """
 if request.method == 'GET':
  snippets = Snippet.objects.all()
  serializer = SnippetSerializer(snippets, many=True)
  return Response(serializer.data)

 elif request.method == 'POST':
  serializer = SnippetSerializer(data=request.data)
  if serializer.is_valid():
   serializer.save()
   return Response(serializer.data, status=status.HTTP_201_CREATED)
  return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

<SPAN style="FONT-SIZE: 13px">data = JSONParser().parse(request) 
serializer = SnippetSerializer(snippet, data=data) 
</SPAN> 

<SPAN style="FONT-SIZE: 13px">serializer = SnippetSerializer(data=request.data) 
</SPAN> 

<SPAN style="FONT-SIZE: 13px">return JsonResponse(serializer.data, status=201) 
</SPAN> 

<SPAN style="FONT-SIZE: 13px">return Response(serializer.data,status=status.HTTP_201_CREATED) 
</SPAN> 

@api_view(['GET', 'PUT', 'DELETE'])
def snippet_detail(request, pk):
 """
 Retrieve, update or delete a code snippet.
 """
 try:
  snippet = Snippet.objects.get(pk=pk)
 except Snippet.DoesNotExist:
  return Response(status=status.HTTP_404_NOT_FOUND)

 if request.method == 'GET':
  serializer = SnippetSerializer(snippet)
  return Response(serializer.data)

 elif request.method == 'PUT':
  serializer = SnippetSerializer(snippet, data=request.data)
  if serializer.is_valid():
   serializer.save()
   return Response(serializer.data)
  return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

 elif request.method == 'DELETE':
  snippet.delete()
  return Response(status=status.HTTP_204_NO_CONTENT)

def snippet_list(request, format=None): 

def snippet_detail(request, pk, format=None): 

from django.conf.urls import url
from rest_framework.urlpatterns import format_suffix_patterns
from snippets import views

urlpatterns = [
 url(r'^snippets/$', views.snippet_list),
 url(r'^snippets/(?P<pk>[0-9]+)$', views.snippet_detail),
]

urlpatterns = format_suffix_patterns(urlpatterns)

http http://127.0.0.1:8000/snippets/

HTTP/1.1 200 OK
...
[
 {
 "id": 1,
 "title": "",
 "code": "foo = \"bar\"\n",
 "linenos": false,
 "language": "python",
 "style": "friendly"
 },
 {
 "id": 2,
 "title": "",
 "code": "print \"hello, world\"\n",
 "linenos": false,
 "language": "python",
 "style": "friendly"
 }
]

<SPAN style="FONT-SIZE: 13px">http http://127.0.0.1:8000/snippets/ Accept:application/json # Request JSON 
http http://127.0.0.1:8000/snippets/ Accept:text/html   # Request HTML</SPAN> 

<SPAN style="FONT-SIZE: 13px">http http://127.0.0.1:8000/snippets.json # JSON suffix 
http http://127.0.0.1:8000/snippets.api # Browsable API suffix</SPAN> 

# POST using form data
http --form POST http://127.0.0.1:8000/snippets/ code="print 123"

{
 "id": 3,
 "title": "",
 "code": "print 123",
 "linenos": false,
 "language": "python",
 "style": "friendly"
}

# POST using JSON
http --json POST http://127.0.0.1:8000/snippets/ code="print 456"

{
 "id": 4,
 "title": "",
 "code": "print 456",
 "linenos": false,
 "language": "python",
 "style": "friendly"
}