安装好所有的环境后，我们来写一个drf的基本接口
1：准备好数据model
students下的models.py
from django.db import models
# Create your models here.
class Student(models.Model):
name = models.CharField(null=False, max_length=32, verbose_name='姓名')
sex = models.BooleanField(default=True, verbose_name='性别')
age = models.IntegerField(verbose_name='年龄')
class_num = models.CharField(max_length=5, verbose_name='班级编号')
description = models.TextField(max_length=100, verbose_name='个性签名')
class Meta:
db_table = 'tb_student'
verbose_name = '学生'
verbose_name_plural = verbose_name
def __str__(self):
return self.name
2:建立序列化器
students下的sersize.py
#序列化器
from rest_framework import serializers
from .models import Student
class StudentModelSerializers(serializers.ModelSerializer):
#学生信息序列化器
#1字段声明
#2模型序列化器相关申明
class Meta:
model = Student
fields = '__all__'
#fields=['id','name','age']
#3验证代码 反序列化
#4操作数据 ---反序列化
3:将序列化器加入视图
students下的views.py
from rest_framework.viewsets import ModelViewSet
from .models import Student
from .sersizes import StudentModelSerializers
from django.shortcuts import render
# Create your views here.
class StudentViewSet(ModelViewSet):
queryset = Student.objects.all()
serializer_class = StudentModelSerializers
4:将组装好的views视图，放入路由urls中
students下的urls.py
from django.urls import path
from rest_framework.routers import DefaultRouter
from . import views
urlpatterns=[]
router = DefaultRouter() #可以处理视图的路由器
router.register('student',views.StudentViewSet) #向路由器中注册视图集
urlpatterns += router.urls #将路由器中的所有路由信息追加到django的路由列表中
5:在总的路由中，加入连接
drfdemo下的urls.py
from django.contrib import admin
from django.urls import path,include
urlpatterns = [
path('admin/', admin.site.urls),
path('student/',include('students.urls')),
path('sers/',include('sers.urls'))
]
7：最后上顺序图测试
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大功告成~~~~
以上就是多个数据列表的获取，下面测试单个数据的
步骤一样，大同小异，但是要注意下面几个地方
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from django.shortcuts import render,HttpResponse
from django.http.response import JsonResponse
from django.views import View
from .serializers import StudentSerializer
from students.models import Student
# Create your views here.
class StudentView(View):
def get1(self,request):
#实例化序列器创建序列化对象
'''
:参数
instance 模型或者模型列表
data 进行反序列化阶段中使用的数据，数据来自客户端的提交
context 当需要从视图中转发数据到序列化器时，可以使用
many 当instance参数为模型列表时候，则many的值必须是true
:param request:
:return:
'''
student_list = Student.objects.all()
print(student_list)
serializer = StudentSerializer(instance=student_list,many=True)
print(serializer.data)
return JsonResponse(serializer.data,safe=False)
def get(self,request):
student_one =Student.objects.get(pk=3)
print(student_one)
serializer = StudentSerializer(instance=student_one)
print(serializer.data)
return JsonResponse(serializer.data,safe=False)
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效果图
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