The only time when this would not be the case would be with a simple server that does no session tracking.
唯一的时候不会这样会用一个简单的服务器会话跟踪没有。
Servlet 3.0 has also been overhauled to use generics, has improvements to session tracking, and includes new file upload functionality.
Servlet 3.0还大量使用了泛型，改善了会话追踪，引入了新的文件上传功能。
Listing 6 shows a sample session that includes the provenance tracking.
清单6显示了包括起源跟踪的样本会话。
Once enabled, the tracking protection would exist for all Web pages the user visits and would take effect each time they start a new browsing session.
一旦这个功能启用，追逐保护将存在于用户浏览的所有网页中，而且每次打开一个新浏览器会话都会起效。
The client masquerades IP of every network session dynamically by applying IP and tracking the network session.
客户机发起新的网络会话时，通过动态申请伪装IP并跟踪网络会话来实现IP动态伪装。
The client masquerades IP of every network session dynamically by applying IP and tracking the network session.
客户机发起新的网络会话时，通过动态申请伪装IP并跟踪网络会话来实现IP动态伪装。
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