CherryPy WSGIServer提供静态文件时出现KeyError

Question

我正在尝试使用CherryPy的WSGI服务器来提供静态文件，例如在Flask与CherryPy一起使用中以提供静态文件 。 那里接受的答案的选项2看起来和我想做的完全一样，但是当我尝试使用静态目录处理程序时出现了KeyError 。

我试过的

>>>> import cherrypy
>>>> from cherrypy import wsgiserver
>>>> import os
>>>> static_handler = cherrypy.tools.staticdir.handler(section='/', dir=os.path.abspath('server_files')
>>>> d = wsgiserver.WSGIPathInfoDispatcher({'/': static_handler})
>>>> server = wsgiserver.CherryPyWSGIServer(('localhost', 12345), d)
>>>> server.start()

然后，当我尝试访问服务器时，控制台中出现500响应和以下错误：

KeyError('tools',)
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/cherrypy/wsgiserver/wsgiserver2.py", line 1353, in communicate
    req.respond()
  File "/Library/Python/2.7/site-packages/cherrypy/wsgiserver/wsgiserver2.py", line 868, in respond
    self.server.gateway(self).respond()
  File "/Library/Python/2.7/site-packages/cherrypy/wsgiserver/wsgiserver2.py", line 2267, in respond
    response = self.req.server.wsgi_app(self.env, self.start_response)
  File "/Library/Python/2.7/site-packages/cherrypy/wsgiserver/wsgiserver2.py", line 2477, in __call__
    return app(environ, start_response)
  File "/Library/Python/2.7/site-packages/cherrypy/_cptools.py", line 175, in handle_func
    handled = self.callable(*args, **self._merged_args(kwargs))
  File "/Library/Python/2.7/site-packages/cherrypy/_cptools.py", line 102, in _merged_args
    tm = cherrypy.serving.request.toolmaps[self.namespace]
KeyError: 'tools'

每次我尝试击中服务器应该能够显示的任何内容时，都会显示两次。 当我将Flask应用程序连接到服务器时，Flask应用程序可以按预期工作，但是静态文件服务仍然出现相同的错误。

我需要怎么做才能使staticdir.handler工作？

Answer 1

我尝试了各种方法使其工作起来，直到今天还遇到了您所看到的KeyError（以及其他问题）。

最终，通过改编本要点 （包括在下面）中的代码，我设法使CherryPy与Django应用程序一起提供静态服务。

import os
import cherrypy
from cherrypy import wsgiserver

from my_wsgi_app import wsgi

PATH = os.path.abspath(os.path.join(os.path.dirname(__file__), 'public'))


class Root(object):
    pass

def make_static_config(static_dir_name):
    """
    All custom static configurations are set here, since most are common, it
    makes sense to generate them just once.
    """
    static_path = os.path.join('/', static_dir_name)
    path = os.path.join(PATH, static_dir_name)
    configuration = {static_path: {
        'tools.staticdir.on': True,
        'tools.staticdir.dir': path}
    }
    print configuration
    return cherrypy.tree.mount(Root(), '/', config=configuration)

# Assuming your app has media on diferent paths, like 'c', 'i' and 'j'
application = wsgiserver.WSGIPathInfoDispatcher({
    '/': wsgi.application,
    '/c': make_static_config('c'),
    '/j': make_static_config('j'),
    '/i': make_static_config('i')})

server = wsgiserver.CherryPyWSGIServer(('0.0.0.0', 8070), application,
                                       server_name='www.cherrypy.example')
try:
    server.start()
except KeyboardInterrupt:
    print "Terminating server..."
    server.stop()

希望包装Flask应用程序会非常相似。

对我来说，关键是在虚拟类上使用cherrypy.tree.mount ，而不是尝试直接使用staticdir.handler。

出于好奇-我使用要点中的代码自定义了django-cherrypy的runcpserver管理命令的版本，尽管事后看来，从头开始创建新命令可能会更容易。

祝您好运（并感谢Alfredo Deza ）！