ifischer ifischer - 1 month ago 16
Java Question

Get current page programmatically

In a JSF backing bean (Managed Bean, Weld Bean, doesn't matter), I can get the context path the client is on by calling

FacesContext ctx = FacesContext.getCurrentInstance();
String path = ctx.getExternalContext().getRequestContextPath();


This gives me the path the client currently accesses, like
/myapplication
.
Is it also possible to get the current page, like
/home.faces
, and how?

Answer

You normally want to use UIViewRoot#getViewId() for this.

String viewId = facesContext.getViewRoot().getViewId();

This is in EL also available as follows:

#{view.viewId}

Exactly this value is reuseable in navigation case outcomes such as <h:link outcome> and <h:button outcome>.


Alternatively, you can also use HttpServletRequest#getRequestURI() to get whatever the enduser is actually seeing in the browser address bar.

String uri = ((HttpServletRequest) externalContext.getRequest()).getRequestURI();

Which is in EL also available as follows:

#{request.requestURI}

Exactly this value is reuseable in <h:outputLink value> or plain <a href>. Note that you can't use it as navigation case outcome.

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