JSF 后退按钮 [英] JSF Back Button

问题描述

如何创建一个链接，让用户返回一页(即与单击浏览器返回相同)?

How do I make a link which navigates the user back one page (i.e. same as clicking browser back)?

谢谢.

推荐答案

切入正题:只要记住上一页的请求URL或者JSF viewId，这样就可以在输出/commandlink的href或者value中使用了.有几种方法可以实现它，具体取决于您实际浏览页面的方式以及您想要实现它的jsfish"方式.您可以通过 h:outputLink 中的 f:param 将其作为请求参数传递，也可以通过 f:setPropertyActionListener 在 h:commandLink 中，或者您可以创建一个 PhaseListener 记住 viewId 并使用导航案例，或者您可以获取 -不太可靠- JavaScript history.go() 函数.

To the point: just remember the request URL or the JSF viewId of the previous page so that you can use it in the href or value of the output/commandlink. There are several ways to achieve it, depending on how you're actually navigating through the pages and how "jsfish" you want to achieve it. You could pass it as a request parameter by f:param in h:outputLink, or you could set it as a bean property by f:setPropertyActionListener in h:commandLink, or you could create a PhaseListener which remembers the viewId and make use of navigation cases, or you could grab the -much less reliable- JavaScript history.go() function.

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