所以我運行了谷歌App Engine數據存儲introduciton基本教程代碼：嘗試訪問我的Facebook嗎？
import cgi
import datetime
import urllib
import webapp2
from google.appengine.ext import db
from google.appengine.api import users
class Greeting(db.Model):
"""Models an individual Guestbook entry with an author, content, and date."""
author = db.UserProperty()
content = db.StringProperty(multiline=True)
date = db.DateTimeProperty(auto_now_add=True)
def guestbook_key(guestbook_name=None):
"""Constructs a datastore key for a Guestbook entity with guestbook_name."""
return db.Key.from_path('Guestbook', guestbook_name or 'default_guestbook')
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.out.write('<html><body>')
guestbook_name=self.request.get('guestbook_name')
# Ancestor Queries, as shown here, are strongly consistent with the High
# Replication datastore. Queries that span entity groups are eventually
# consistent. If we omitted the ancestor from this query there would be a
# slight chance that Greeting that had just been written would not show up
# in a query.
greetings = db.GqlQuery("SELECT * "
"FROM Greeting "
"WHERE ANCESTOR IS :1 "
"ORDER BY date DESC LIMIT 10",
guestbook_key(guestbook_name))
for greeting in greetings:
if greeting.author:
self.response.out.write(
'<b>%s</b> wrote:' % greeting.author.nickname())
else:
self.response.out.write('An anonymous person wrote:')
self.response.out.write('<blockquote>%s</blockquote>' %
cgi.escape(greeting.content))
self.response.out.write("""
<form action="/sign?%s" method="post">
<div><textarea name="content" rows="3" cols="60"></textarea></div>
<div><input type="submit" value="Sign Guestbook"></div>
</form>
<hr>
<form>Guestbook name: <input value="%s" name="guestbook_name">
<input type="submit" value="switch"></form>
</body>
</html>""" % (urllib.urlencode({'guestbook_name': guestbook_name}),
cgi.escape(guestbook_name)))
class Guestbook(webapp2.RequestHandler):
def post(self):
# We set the same parent key on the 'Greeting' to ensure each greeting is in
# the same entity group. Queries across the single entity group will be
# consistent. However, the write rate to a single entity group should
# be limited to ~1/second.
guestbook_name = self.request.get('guestbook_name')
greeting = Greeting(parent=guestbook_key(guestbook_name))
if users.get_current_user():
greeting.author = users.get_current_user()
greeting.content = self.request.get('content')
greeting.put()
self.redirect('/?' + urllib.urlencode({'guestbook_name': guestbook_name}))
app = webapp2.WSGIApplication([('/', MainPage),
('/sign', Guestbook)],
debug=True)
在Pycharm我只是按「Shift + F10」來運行上面的代碼。
我得到以下記錄的站點127.0.0.1:8080打開之前：
C:\Python27\python.exe "C:/Program Files/Google/google_appengine/dev_appserver.py" .
WARNING 2012-03-02 01:34:41,374 rdbms_mysqldb.py:74] The rdbms API is not available because the MySQLdb library could not be loaded.
INFO 2012-03-02 01:34:41,976 appengine_rpc.py:160] Server: appengine.google.com
INFO 2012-03-02 01:34:41,983 appcfg.py:581] Checking for updates to the SDK.
INFO 2012-03-02 01:34:44,369 appcfg.py:599] The SDK is up to date.
WARNING 2012-03-02 01:34:44,371 datastore_file_stub.py:513] Could not read datastore data from c:\users\robert\appdata\local\temp\dev_appserver.datastore
INFO 2012-03-02 01:34:46,295 dev_appserver_multiprocess.py:650] Running application dev~helloworld on port 8080: http://localhost:8080
INFO 2012-03-02 01:34:46,296 dev_appserver_multiprocess.py:652] Admin console is available at: http://localhost:8080/_ah/admin
WARNING 2012-03-02 01:34:47,480 py_zipimport.py:139] Can't open zipfile C:\Python27\lib\site-packages\pyfacebook-1.0a2-py2.7.egg: IOError: [Errno 13] file not accessible: 'C:\Python27\lib\site-packages\pyfacebook-1.0a2-py2.7.egg'
INFO 2012-03-02 01:34:49,108 datastore_stub_index.py:257] Updating C:\Users\Robert\PycharmProjects\helloworld\index.yaml
INFO 2012-03-02 01:34:49,148 dev_appserver.py:2865] "GET/ HTTP/1.1" 200 -
INFO 2012-03-02 01:34:49,315 dev_appserver.py:2865] "GET /favicon.ico HTTP/1.1" 404 -
注意日誌有行：
警告2012-03-02 01:34： 47,480 py_zipimport.py:139]無法打開zipfile C：\ Python27 \ lib \ site-packages \ pyfacebook-1.0a2-py2.7.egg：IOError：[Errno 13]文件無法訪問：'C：\ Python27 \ lib \ site-packages \ pyfacebook-1.0a2-py2.7.egg'
我確定有一個原因能夠，合乎邏輯的解釋，任何人都知道？
該文件實際存在嗎？ – 2012-03-02 02:01:33
yes pyfacebook-1.0a2-py2.7.egg在該目錄中。 – 2012-03-02 02:12:59