Relative paths to file issue in deploying an app

问题

I have a polymer app that I'm deploying to Google App Engine. It is step-2 of the beginner polymer tutorial. I keep getting 404s and 500 errors for some resources, specifically these are the errors:

GET http://polymer-test-nik.appspot.com/images/avatar-07.svg 404 (Not Found) polymer-test-nik.appspot.com/:66
GET http://polymer-test-nik.appspot.com/components/core-header-panel/core-header-panel.html 500 (Internal Server Error) polymer-test-nik.appspot.com/:10
GET http://polymer-test-nik.appspot.com/images/avatar-07.svg 404 (Not Found) polymer-test-nik.appspot.com/:66
GET http://polymer-test-nik.appspot.com/components/core-selector/core-selector.html 500 (Internal Server Error) polymer-test-nik.appspot.com/:78

The directory structure is unchanged from the tutorial.

I'm using a simple main.py to serve the app

import random
import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template

class MainHandler(webapp.RequestHandler):
  def get (self, q):
    if q is None:
        i = random.randint(1,11)
        q = 'step-2/index.html'
    path = os.path.join (os.path.dirname (__file__), q)
    self.response.headers ['Content-Type'] = 'text/html'
    self.response.out.write (template.render (path, {}))

class GuideHandler(webapp.RequestHandler):
  def get (self, q):
    q = 'icgt-registration-guide.pdf'
    path = os.path.join (os.path.dirname (__file__), q)
    self.response.headers ['Content-Type'] = 'application/pdf'
    self.response.out.write (template.render (path, {}))

def main ():
  application = webapp.WSGIApplication ([('/(.*html)?', MainHandler)], debug=True)
  util.run_wsgi_app (application)

if __name__ == '__main__':
  main ()

回答1:

Add the following to your app.yaml:

handlers:
- url: /components
  static_dir: components
- url: /images
  static_dir: images

It's worth noting that these handlers should be added after your url: .* declaration, otherwise it will catch all and never go further down, so in this simple example, the complete declaration will look like this:

handlers:
- url: /components
  static_dir: components
- url: /images
  static_dir: images
- url: .*
  script: main.py

I will also recommend using the webapp2 framework instead, it's recommended for new applications and way better!

来源：https://stackoverflow.com/questions/25246008/relative-paths-to-file-issue-in-deploying-an-app

标签

html

google-app-engine

polymer