Django缓存原理

最新推荐文章于 2025-06-03 11:11:10 发布

原创最新推荐文章于 2025-06-03 11:11:10 发布 · 319 阅读

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#django #python #mysql #缓存

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查看global_settings下的CACHES

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
    }
}

模仿底层实现获取某表中的所有数据

配置URL

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^student/',include('student.urls'))
]


#coding=utf-8

from django.conf.urls import url
import views

urlpatterns=[
    url(r'^$',views.index_view)
]

创建视图

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render
from .models import *

from django.core.cache import caches
#获取缓存对象
cache = caches['default']
print cache

def cache_view(func):
    def _wrapper(request,*args,**kwargs):
        data = cache.get(request.path)
        if data:
            print '读取缓存数据'
            return HttpResponse(data)
        print '准备获取数据库数据'
        response = func(request,*args,**kwargs)
        print '进行缓存数据'
        cache.set(request.path,response.content)
        return response
    return _wrapper

# Create your views here.

@cache_view
def index_view(request):
    stus = Stu.objects.all()

    return render(request,'index.html',{'stus':stus})

创建模板

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <ul>
    {% for stu in stus %}
        <li>{{ stu.sname }}</li>
    {% endfor %}
    </ul>

</body>
</html>