Question

我必须在Django应用中的每个请求上查询redis。在哪里可以放置建立/连接例程（r = redis.Redis(host='localhost', port=6379)），以便可以访问和重用连接而不必在视图中实例化新连接？

Answer 1

将此行添加到“设置”文件以创建连接，

CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://127.0.0.1:6379/1",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient"
         },
        "KEY_PREFIX": "example"
    }
}

# Cache time to live is 15 minutes.
CACHE_TTL = 60 * 15

视图级缓存，它将缓存查询响应（数据）

from django.utils.decorators import method_decorator
from django.views.decorators.cache import cache_page

class TestApiView(generics.ListAPIView):
     serializer_class = TestSerializer

     @method_decorator(cache_page(60))
     def dispatch(self, *args, **kwargs):
          return super(TestApiView, self).dispatch(*args, **kwargs)

模板级缓存

from django.conf import settings
from django.core.cache.backends.base import DEFAULT_TIMEOUT
from django.shortcuts import render
from django.views.decorators.cache import cache_page
from .services import get_recipes_with_cache as get_recipes

CACHE_TTL = getattr(settings, 'CACHE_TTL', DEFAULT_TIMEOUT)


@cache_page(CACHE_TTL)
def recipes_view(request):
     return render(request, 'index.html', {
         'recipes': get_recipes()
     })

如有任何疑问，请参考此链接

Django，Redis：在哪里放置连接代码

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