1.先创建个app子级

python .\manage.py startapp app01

然后创建数据模型

app01下的
modules.py文件

from django.db import models

# Create your models here.
class UserInfo(models.Model):
    name=models.CharField(max_length=32)
    password=models.CharField(max_length=12)
    age=models.IntegerField()
    tel=models.IntegerField(max_length=11)

配置数据库

"default": {
        "ENGINE": "django.db.backends.mysql",
        "NAME": "数据库名",
        "USER": "数据库用户名",
        "PASSWORD": "密码",
        "HOST": "127.0.0.1",
        "PORT": "3306",
    }

2.迁移数据库

python manage.py makemigrations 和 python manage.py migrate

3.写路由url

from django.contrib import admin
from django.urls import path,include
from app01 import views
urlpatterns = [
    # path("admin/", admin.site.urls),
    # path("index/",views.index),
    # path("user/list/", views.user_list),
    # path("login/", views.ApiLogin.as_view()),
    # path("del/", views.ApiDel.as_view()),
    path("add/", views.addUser.as_view()),
    path("user/", views.UserList.as_view()),
    path("updateuser/", views.upDateUser.as_view()),
    path("del/", views.deluser.as_view()),
]

4.view页面编写增删改查

from django.shortcuts import render,HttpResponse
from rest_framework.views import APIView
# Create your views here.
from django import views
from app01.models import UserInfo
from rest_framework.response import Response
from app01.ser import APIViewUserInfo
class addUser(APIView):
    def post(self,request):
        obj=APIViewUserInfo(data=request.data)
        if obj.is_valid():
            obj.save()
            return Response({"data":obj.data, "status" : 201,"message":"添加用户成功"})
        return Response(data=obj.errors,status=400)
class UserList(APIView):
    def get(self,request):
        obj=UserInfo.objects.all()
        ser=APIViewUserInfo(instance=obj,many=True)
        return Response(ser.data)
class upDateUser(APIView):
    def post(self,request):
        print(request.data.get("id"))
        i=request.data.get("id")
        try:
            user=UserInfo.objects.get(id=i)
        except Exception as e:
            return Response(data="不存在", status=201)
        # 创建序列化对象，并将要反序列化的数据传递给data构造参数，进而进行验证
        user.password=request.data.get("password")
        if request.data.get("name")!="":
            print(request.data.get("name")=="")
            user.name=request.data.get("name")
        user.save()
        return Response(status=400)
class deluser(APIView):
    def post(self,request):
        id=request.data.get("id")
        UserInfo.objects.filter(id=id).delete()
        return Response({"msg":"删除成功","state":"true"})
# def index(request):
#     return HttpResponse("欢迎使用")
#
#
# def user_list(request):
#     return render(request,"user_list.html")
#
# class ApiLogin(APIView):
#     def get(self,request):
#         return HttpResponse("get")
#     def post(self,request):
#         UserInfo.objects.create(name="张三",password="123456",age=15,tel="1234567891")
#         obj=UserInfo.objects.all()
#         print(obj)
#         return HttpResponse("post")
#
# class ApiDel(APIView):
#     def post(self,request):
#         UserInfo.objects.filter(id=4).delete()
#         return HttpResponse("删除成功")

5.序列化 反序列化

# -*- coding: utf-8 -*-
from rest_framework import serializers
from app01.models import UserInfo
class APIViewUserInfo(serializers.Serializer):
    """图书数据序列化器"""
    id = serializers.IntegerField(label="ID", read_only=True)       # 主键序列化
    # 第一：普通字段序列化
    name = serializers.CharField(label="名称", max_length=20)
    password = serializers.CharField(label="密码")
    age = serializers.IntegerField(label="年龄", required=False)
    tel = serializers.IntegerField(label="电话", required=False)
    # # 第二：一对多字段序列化
    # heroinfo_set = serializers.PrimaryKeyRelatedField(read_only=True, many=True)
    # # 第三：自定义显示（显示多对多）
    # xxx = serializers.SerializerMethodField(read_only=True)
    class Meta:
        model = UserInfo
    # 自定义显示 多对多 字段
 # 定义创建语法：ser.save()执行，就会立刻调用create方法用来创建数据
    def create(self, validated_data):
        """validated_data: 表单或者vue请求携带的json：{"username":"zhangsan","password":"123456"}"""
        return self.Meta.model.objects.create(**validated_data)

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关键词： 反序列化 数据传递 相关文章 希望大家 数据模型