Django 将查询集序列化为 JSON 以构造仅包含字段信息和 id 的 RESTful 响应

使用Django进行RESTful开发时，经常需要将查询集序列化为JSON格式以构造响应。有时候我们只需要返回某些字段的信息和对应的id，这可以提高数据传输的效率。本文将介绍如何使用Django的序列化工具，将查询集序列化为JSON，并构建一个只包含字段信息和id的RESTful响应。

python
from rest_framework import serializers
class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ['id', 'username', 'email']

python
from rest_framework.response import Response
def users(request):
    queryset = User.objects.all()
    serializer = UserSerializer(queryset, many=True)
    return Response(serializer.data)

python
class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ['id', 'username']

python
from django.contrib.auth.models import User
from rest_framework import serializers
from rest_framework.response import Response
from rest_framework.decorators import api_view
class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ['id', 'username']
@api_view(['GET'])
def users(request):
    queryset = User.objects.all()
    serializer = UserSerializer(queryset, many=True)
    return Response(serializer.data)