Django路由访问及查询数据

1、在应用模块下，创建urls文件，用来存放访问路由

2、在项目总访问url里面注册路由

3、在view文件里，定义方法参数

python 复制代码

from django.core import serializers
from django.db import connection
from django.http import HttpResponse, JsonResponse
# 分页
from django.core.paginator import Paginator, EmptyPage
import json
from django.core.serializers.json import DjangoJSONEncoder
from django.db.models import Q, F
from .models import Tests


def tests_list(request):
    page_number = int(request.GET.get('page', 1))

    search_term = request.GET.get('q', '')

    # 定义每页显示的条目数
    items_per_page = 10

    # 构建模糊查询的Q对象
    query = Q()
    if search_term:
        query &= (Q(name__icontains=search_term) | Q(password__icontains=search_term))
    # 添加状态等于1的条件
    #query &= Q(status=1)
    # 计算出从哪一条数据开始查询
    offset = (page_number - 1) * items_per_page
    # 应用模糊查询获取过滤后的数据
    filtered_users = Tests.objects.filter(query).order_by('-id')[offset:offset + items_per_page]
    # 获取过滤后的总条目数
    total_items = Tests.objects.filter(query).count()
    # 计算总页数
    total_pages = (total_items + items_per_page - 1) // items_per_page
    # 执行查询，只获取当前页的数据
    page_obj = filtered_users

    json_data = [user.to_dict() for user in page_obj]
    # print(user_data)
    # user_data = User.objects.all()
    # json_data = [ user.to_dict() for user in user_data]

    # 带上条件过滤数据
    # user_data = User.objects.filter(name='222333')
    # print(user_data)

    # list_of_dicts = list(user_data.values())
    # json_data = json.dumps(list_of_dicts, cls=DjangoJSONEncoder)

    return JsonResponse({'data': json_data, 'total': total_items, 'total_pages': total_pages}, safe=False)

def tests_add(request):
    pass
def tests_edit(request):
    pass
def tests_delete(request):
    pass