How can I navigate to another page in managed bean?
I am trying to forward a page in my managed bean with the commandbutton:
<h:commandButton action="#{bean.action}" value="Go to another page" />
The following line:
public void action() throws IOException {
FacesContext.getCurrentInstance().getExternalContext().redirect("another.xhtml");
}
redirects the page, not forwards. I have seen a similar question to this and tried the given solution:
public void action() throws IOException {
FacesContext.getCurrentInstance().getExternalContext().dispatch("another.xhtml");
}
But I get the following error:
Index: 0, Size: 0
So how can I forward to a page from a managed bean?
Answer
Just return it as action method return value.
public String action() {
return "another.xhtml";
}
If you're in turn not doing anything else than navigating, then you could also just put the string outcome directly in action attribute.
<h:commandButton action="another.xhtml" value="Go to another page" />
However, this is in turn a rather poor practice. You should not be performing POST requests for plain page-to-page navigation. Just use a simple button or link:
<h:button outcome="another.xhtml" value="Go to another page" />