详解django的serializer序列化model几种方法

from django.views.generic import View
from goods.models import Goods
from django.core import serializers
from django.http import HttpResponse
 
class GoodsListView(View):
 
  def get(self,request):
   """
   通过django的view实现商品列表页
   :param request:
   :return:
   """
   #返回前所有商品的前10条数据
   goods_list = Goods.objects.all()[:10]
   #直接转换成json类型的字符串
   data = serializers.serialize("json",goods_list)
   #注意要加上："application/json"，否则在浏览器显示不正常
   return HttpResponse(data,"application/json")

from django.views.generic import View
from goods.models import Goods
from django.http import HttpResponse
import json
class GoodsListView(View):
  #重写get方法
  #django返回第一种方式
  def get(self,request):
    # 得到商品前10条数据
     goods=Goods.objects.all()[:10]
     goods_list=[]
     for good in goods:
       item={}
       item['name']=good.name
       item['click_num']=good.click_num
       item['shop_price']=good.shop_price
       goods_list.append(item)
    response_data=json.dumps(goods_list,ensure_ascii=False)
    #python字符串 设置为utf-8编码
    return HttpResponse(response_data,'application/json')

from django.views.generic import View
from goods.models import Goods
from django.core import serializers
import json
from django.http import JsonResponse
class GoodsListView(View):
  def get(self,request):
   """
   通过django的view实现商品列表页
   :param request:
   :return:
   """
   #返回前所有商品的前10条数据
   goods_list = Goods.objects.all()[:10] 
   #序列化，把内存中的python对象，转换成网络中能够传输的对象
   #直接转换成json类型的字符串
   data = serializers.serialize("json",goods_list)
   #转换成字典
   data = json.loads(data)
   return JsonResponse(data,safe=False)