如果您使用后退按钮，那么我会收到文档已过期"

如果先前的请求是同步POST请求(表单提交)，则会发生这种情况.您不应该使用POST进行页面间导航.使用GET.

That will happen if the previous request was a synchronous POST request (a form submit). You're not supposed to use POST for page-to-page navigation. Use GET for it.

换句话说，用<h:link/button>替换表示纯页面到页面导航链接/按钮的<h:commandLink/Button>.并且，当您需要在提交表单后导航到新页面时，例如要在提交条目后显示列表，请使用POST-redirect-GET.

In other words, replace <h:commandLink/Button> representing pure page-to-page navigation links/buttons by <h:link/button>. And, when you need to navigate to a new page after a form submit, e.g. to display a list after submit of an entry, use POST-redirect-GET.

• 何时应使用h:outputLink代替h:commandLink?
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不相关与具体问题:PhaseListener是处理HTTP响应标头的错误工具.使用普通的Filter.

Unrelated to the concrete problem: a PhaseListener is the wrong tool for the job of manipulating HTTP response headers. Use a normal Filter.