在客户离开该网页时,是否可以通知服务器(用数据线抽取单项吉大港山区的请求,答复不是进口的)?
I m 实际使用Python-tornado 提出申请时,用javascript 不断要求服务器连接(该服务器已关闭并重新开门)。 依据:https://apppad.net/eftw。
我没有找到轻松的办法(特别是用火炮进行)。 这使得这一问题非常成问题。
Oh, and the actual Code (既然它有点可使用过: http://bazaar.signpad.net/~hoverhell/xftw/trunk/files
视浏览器和排位而定,您的Xml HttpRequest可能在其实际完成之前被杀。
浏览器的决策者希望(确切地说,仇恨)使下页尽快到位。 <代码>on beforeunload和onunload均为清理活动,旨在迅速处置围绕任何变量,不再意味着等待......浏览器。 由于新浏览器的垃圾收集工作也显著改善,浏览器更没有理由等待这些事件。
您可在<代码>window.on beforeunload活动上发出一项请求,......但能否进入服务器? Maybe。
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