Django Rest_Framework

作用:大量缩减编写api接口代码

 思路:

 安装教程

1.安装django

2.安装djangorestframework

3.django的settings.py中注册'rest_framework'

使用教程:

• 创建模型类:数据库链接 ,并且建立好数据库模型(Student)

• from django.db import models
  
  
  class Student(models.Model):
      """学生模型"""
      name = models.CharField(max_length=100, verbose_name="姓名")
      sex = models.BooleanField(default=1, verbose_name="性别")
      age = models.IntegerField(verbose_name="年龄")
      class_null = models.CharField(max_length=5, verbose_name="班级编号")
      description = models.TextField(max_length=1000, verbose_name="个性签名")
  
      class Mate:
          db_table = 'tb_student'
          verbose_name = '学生'
          verbose_name_plural = verbose_name

   

• 创建序列化器:创建serializers.py：将数据库模型序列化，创建出序列化器

from rest_framework import serializers  # 导入序列化器基类(2个)
from FRAMEWORK.models import Student


# 序列化基类
# serializers.Serializers
# serializers.ModelSerializers
class StudentModelSerializers(serializers.ModelSerializer):
    # 指定序列化模型
    class Meta:
        model = Student
        fields = "__all__"  # 全部字段
        # fields=['id',"name"]部分字段

• 编写视图:Student视图：创建ViewSet

• from rest_framework.viewsets import ModelViewSet
  from FRAMEWORK.models import Student
  from FRAMEWORK.serializers import StudentModelSerializers
  
  
  class StudentModelViewSet(ModelViewSet):
      queryset = Student.objects.all()  # 指明视图集在查询数据时使用的查询集
      serializer_class = StudentModelSerializers  # 指定序列化器或者反序列化器

• 定义路由:urls.py路由:自动生成路由

• from django.urls import re_path, path
  from FRAMEWORK.views import Student, Test
  from FRAMEWORK.views.Student import StudentModelViewSet
  from rest_framework.routers import SimpleRouter, DefaultRouter  # 自动生成路由模块(2选1即可)
  
  urlpatterns = [
      # 测试页
      path(r'test', Test.test, name='test'),
  ]
  # 学生api
  """
  router.register("前缀(用于区分api接口)",viewset=指定序列化模型视图,basename=别名)
  """
  router = DefaultRouter()  # 实例化路由生成器
  router.register('stu', viewset=StudentModelViewSet, basename="stu")  # 生成5个路由
  urlpatterns += router.urls

• 运行测试
•