django实现增删改查分页接口

django实现增删改查分页接口(小白必备)

在上篇文章中我使用nodejs实现了增删改查分页接口，这一篇我们则使用django实现。

1.创建一个django项目，命令如下
python manage.py startapp myapp

2.在你自己的myapp文件夹中的models.py中定义你们自己的模型

from django.db import modelsclass 名字(models.Model):title = models.CharField(max_length=100)author = models.CharField(max_length=100)等

3.迁移数据库，创建模型的数据表，通过以下两行命令

python manage.py makemigrations
python manage.py migrate

4.在myapp文件夹中的views.py文件中编写处理请求

from django.core.paginator import Paginator
from django.http import JsonResponse
from myapp.models import Bookdef get_books(request):# 获取所有书籍books = Book.objects.all()# 分页paginator = Paginator(books, 10) # 每页显示10条记录page_number = request.GET.get('page') # 获取页码参数page_obj = paginator.get_page(page_number)# 构造返回数据data = {'current_page': page_obj.number,'total_pages': paginator.num_pages,'books': [{'title': book.title, 'author': book.author, 'publication_date': str(book.publication_date)}for book in page_obj.object_list]}return JsonResponse(data)def create_book(request):# 获取POST请求数据title = request.POST.get('title')author = request.POST.get('author')publication_date = request.POST.get('publication_date')# 创建书籍对象并保存book = Book(title=title, author=author, publication_date=publication_date)book.save()return JsonResponse({'message': 'Book created successfully'})def update_book(request, book_id):# 获取PUT请求数据title = request.PUT.get('title')author = request.PUT.get('author')publication_date = request.PUT.get('publication_date')# 更新书籍对象book = Book.objects.get(id=book_id)book.title = titlebook.author = authorbook.publication_date = publication_datebook.save()return JsonResponse({'message': 'Book updated successfully'})def delete_book(request, book_id):# 删除书籍对象book = Book.objects.get(id=book_id)book.delete()return JsonResponse({'message': 'Book deleted successfully'})

5.在项目的urls.py文件中配置URL路由

from django.urls import path
from myapp.views import get_books, create_book, update_book, delete_bookurlpatterns = [path('books/', get_books),path('books/create/', create_book),path('books/update/<int:book_id>/', update_book),path('books/delete/<int:book_id>/', delete_book),
]