Question

为了整合setStringResource(string.xml-ar)和Django，我决定在Ember视图中投放Ember SPA（避免Django个问题，只有一个服务器用于前端和API等）。我是这样做的：

CORS

# urls.py urlpatterns = [ url(r'^admin/', include(admin.site.urls)), url(r'^api/', include(api_urls, namespace='api')), ... url(r'^$', views.emberapp, name='emberapp'), ... ] # views.py from django.http import HttpResponse def emberapp(request): # The Ember frontend SPA index file # This only works in development, and is anyway hacky EMBER_FE_INDEX_HTML = '/absolute/path/to/my/frontend/static/fe-dist/index.html' template_file = open(EMBER_FE_INDEX_HTML) html_content = index_file.read() index_file.close() return HttpResponse(html_content)是静态资产的一部分。在开发过程中，这很容易：

index.html可直接访问文件系统中的index.html应用程序
我知道索引文件的绝对路径

但是在生产环境中事情更复杂，因为静态资产不是django应用程序的本地资产，而是可以在Amazon S3上访问。我使用Django。

无论使用哪个后端存储/提供静态文件，如何以通用方式从视图中读取静态文件的内容？

Answer 1

首先，我不认为你这样做是个好主意。

但是，回答你的问题：在你的settings.py中，你可能已经定义了Django将收集所有静态文件的目录。

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
STATIC_ROOT = os.path.join(BASE_DIR, 'static')

因此，在您看来，您只需要获取文件os.path.join(settings.STATIC_ROOT, 'index.html')

也就是说，您应该通过网络服务器提供index.html，与静态/文件，robots.txt，favicon.ico等相同。不是通过Django。 Web服务器速度更快，使用正确的缓存，在Nginx或Apache设置中只有一行，而不是Django中的整个视图函数。

Answer 2

这是我目前的解决方案。在开发中工作，还不确定生产（你需要提交未经测试的代码以验证Heroku中与生产相关的代码，这是一种痛苦）

from django.conf import settings
from django.http import HttpResponse
from django.core.files.storage import get_storage_class

FE_INDEX_HTML = 'fe/index.html'  # relative to the collectstatic directory


def emberapp(request):
    # The Ember frontend SPA index file
    # By getting the storage_class like this, we guarantee that this will work
    #   no matter what backend is used for serving static files
    #   Which means, this will work both in development and production
    #   Make sure to run collectstatic (even in development)
    # TODO: how to use this in development without being forced to run collectstatic?
    storage_class = get_storage_class(settings.STATICFILES_STORAGE)
    # TODO: reading from a storage backend can be slow if assets are in a third-party server (like Amazon S3)
    #   Maybe streaming the static file from the server would be faster?
    #   No redirect to the Amazon S3 asset, please, since the Ember App needs to
    #   run from the same URL as the API, otherwise you get CORS issues
    with storage_class().open(FE_VWORKS_INDEX_HTML) as index_file:
        html_content = index_file.read()
    return HttpResponse(html_content)

或者，回复一个StreamingHttpResponse，它不会强制Django读取内存中的整个文件（并等待它被读取）：

def emberapp(request):
    # The Ember frontend SPA index file
    # By getting the storage_class like this, we guarantee that this will work
    #   no matter what backend is used for serving static files
    #   Which means, this will work both in development and production
    #   Make sure to run collectstatic (even in development)
    # TODO: how to use this in development without being forced to run collectstatic?
    storage_class = get_storage_class(settings.STATICFILES_STORAGE)
    index_file = storage_class().open(FE_INDEX_HTML)
    return StreamingHttpResponse(index_file)

在视图中读取静态文件

2 个答案: