Question

我正在Google App Engine上运行应用并使用GAE Utilities（http://gaeutilities.appspot.com/）设置一个Cookie，用于保存用户访问的唯一ID。虽然我测试它似乎工作正常，但我的GAE日志几乎每次访问都会出错。我得到的错误如下：

2013-04-21 12:00:28.568 /go/social/ag1zfnNwYXJrb21wYXNzch4LEgZDb3Vwb24iEmFmZmlsaW5ldDU3MjkyODgxMAw?src=TWT 200 658ms 1kb Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_6) AppleWebKit/534.24 (KHTML, like Gecko) Contact: feedback@getprismatic.com
184.73.14.223 - - [21/Apr/2013:03:00:28 -0700] "GET /go/social/ag1zfnNwYXJrb21wYXNzch4LEgZDb3Vwb24iEmFmZmlsaW5ldDU3MjkyODgxMAw?src=TWT HTTP/1.1" 200 1573 - "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_6) AppleWebKit/534.24 (KHTML, like Gecko) Contact: feedback@getprismatic.com" "www.gutscheinalm.at" ms=659 cpu_ms=129 cpm_usd=0.000176 app_engine_release=1.7.7 instance=00c61b117c8b8fef32a0647ddfb82622596338
E 2013-04-21 12:00:28.566
Expires: Tue, 03 Jul 2001 06:00:00 GMTLast-Modified: Sun, 21 Apr 13 10:00:27 UTCCache-Control: no-store, no-cache, must-revalidate, max-age=0Cache-Control: post-check=0, pre-check=0Pragma: no-cache
E 2013-04-21 12:00:28.566
Set-Cookie: gaeutilities_session=ag1zfnNwYXJrb21wYXNzciMLEhtfQXBwRW5naW5lVXRpbGl0aWVzX1Nlc3Npb24Yp8kcDA_0b46176b54a9aa056a2af1b140ce9af1; expires=Sun, 21-Apr-2013 12:00:28 GMT; Path=/ 
E 2013-04-21 12:00:28.566
Set-Cookie: gaeutilities_session_data=; expires=Sun, 21-Apr-2013 12:00:28 GMT
E 2013-04-21 12:00:28.566
Expires: Tue, 03 Jul 2001 06:00:00 GMTLast-Modified: Sun, 21 Apr 13 10:00:28 UTCCache-Control: no-store, no-cache, must-revalidate, max-age=0Cache-Control: post-check=0, pre-check=0Pragma: no-cache

任何人都可以就导致此错误的原因向我提供一些指示，以及我可能如何修复它？非常感谢！

更新1

我确定了调用它的代码，它位于Sessions.py第523行。目的是确保页面不在浏览器中缓存。我注意到另一部分代码也使用'print'命令，也将输入注册为错误。这是正常行为吗？

def no_cache_headers(self):
    """
    Generates headers to avoid any page caching in the browser.
    Useful for highly dynamic sites.

    Returns a unicode string of headers.
    """
    return u"".join([u"Expires: Tue, 03 Jul 2001 06:00:00 GMT",
        strftime("Last-Modified: %a, %d %b %y %H:%M:%S %Z").decode("utf-8"),
        u"Cache-Control: no-store, no-cache, must-revalidate, max-age=0",
        u"Cache-Control: post-check=0, pre-check=0",
        u"Pragma: no-cache",
    ])

# make sure the page is not cached in the browser
print self.no_cache_headers()

GAE Python - GAEUtilities - 缓存错误

0 个答案: