找出哪个XHTML页面称为托管bean的方法

Question

我有托管bean，并希望根据哪个页面调用其中一个方法来划分逻辑，是否存在某种方式来实现这一点？

Answer 1

This is available by UIViewRoot#getViewId() .

String viewId = FacesContext.getCurrentInstance().getViewRoot().getViewId();

I must however say that this is somewhat a smell. Depending on the concrete functional requirement for which you thought that examining the calling XHTML page would be the right solution, there may be better ways to achieve the concrete functional requirement.

Answer 2

I think in two approachs the first is to get the referer header from the Http request it may have the url from the requesting page

FacesContext.getCurrentInstance().getExternalContext().getRequestHeaderMap().get("referer")

Other option is to navigate sending parameters, for example adding the viewId as parameter in the query string, in jsf-2 you can send parameters when the page navigate using the

I hope this will help you