Question

我正在尝试在GAE中部署以下名为image-getter.py的python代码：

from google.appengine.ext import db
from google.appengine.ext import webapp
from google.appengine.ext import os
from google.appengine.ext.webapp.util import run_wsgi_app

#the addimage endpoint
class AddImage(webapp.RequestHandler):
    def post(self):
        image = self.request.get('image')
        i = Image()
        i.picture = db.Blob(image)
        i.put()
        self.response.out.write('done');

#the Image object: 
class Image(db.Model):
    picture = db.BlobProperty();

#to get the image  : /getimage?key=sdfsadfsf...
class GetImage(webapp.RequestHandler):
    def get(self):
        images_query = Image.get(self.request.get('key'))
        if (images_query and images_query.picture):
            self.response.headers['Content-Type'] = "image/jpeg"
            self.response.out.write(images_query.picture)

#to draw the images out to the main page: 
class MainPage(webapp.RequestHandler):
    def get(self):
        images = db.Query(Image)
        keys = [];
        for image in images:
            keys.append(str(image.key()))

        template_values = {'images' : keys}
        path = os.path.join(os.path.dirname(__file__), 'index.html')
        self.response.out.write(template.render(path, template_values))

def main():
    app = webapp.WSGIApplication(
        [('/', MainPage),
        ], debug=True)

上面的代码使用了os库，但我认为你不允许在GAE中使用它。

我的app.yaml文件如下：

application: myapp
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /
  script: image-getter.app

libraries:

html，index.html文件如下所示：

<div>
{% for i in images %}
<img src="/getimage?key={{i}}" />
{% endfor %}
</div>

我似乎无法让应用程序运行，我得到“错误：服务器错误”，这不是非常有用。

感谢！

Answer 1

image-getter.py中没有image-getter.app。此外，您的image-getter.py检查示例中没有路由https://developers.google.com/appengine/docs/python/gettingstartedpython27/helloworld

您需要添加类似

的内容

app = webapp2.WSGIApplication([
    ('/', MainPage),
], debug=True)

当您发布代码时，请包含import语句，您的代码似乎无效，因为它不会导入db模块。

试图运行GAE python - 不确定是否正确配置了导入和app.yaml

1 个答案: