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                ## 一、使用裝飾器   在文件開頭導入下面代碼,然后在函數上方添加緩存的裝飾器 ~~~ from django.views.decorators.cache import cache_page @cache_page(30) ~~~ ## 二、原生緩存 Django中提供了6種緩存方式: * 開發調試 * 內存 * 文件 * 數據庫 * Memcache緩存(python-memcached模塊) * Memcache緩存(pylibmc模塊) 常用的緩存配置 Memcache緩存 首先要創建緩存表 ~~~ python manage.py createcachetable [table_name] ~~~ ``` CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.db.DatabaseCache', 'LOCATION': 'cache_table', 'TIMEOUT': '60', 'OPTIONS': { 'MAX_ENTRIES': '300', }, 'KEY_PREFIX': 'rock', 'VERSION': '1', } } ``` redis緩存 首先要安裝django-redis ~~~ pip install django-redis ~~~ ``` CACHES = { "default": { "BACKEND": "django_redis.cache.RedisCache", "LOCATION": "redis://127.0.0.1:6379/1", "OPTIONS": { "CLIENT_CLASS": "django_redis.client.DefaultClient", } } } ``` 代碼實現示例: ~~~ from django.forms import model_to_dict from django.http import JsonResponse from django.core.cache import cache from app.models import Engineer def my_cache_test(req): # 看緩存有沒有數據 res = cache.get('data') if res:return JsonResponse(res) else: # 查數據 data = Engineer.objects.all() # 把對象轉成字典 # model_to_dict() c_data = []      for i in data: c_data.append(model_to_dict(i)) result = {'my_data':c_data} # 設置緩存 cache.set('data',result,30) # 返回數據給前端 return JsonResponse(result) ~~~
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