JSF使用参数重定向到其他页面

Question

I'm redirecting to another page:

String uri = "../test/planOutput.jsf?job_id=121250";
FacesContext.getCurrentInstance().getExternalContext().dispatch(uri);

It works, but the URL doesn't change, I must see the new URL with the parameter.

What is the solution?

Answer 1

You aren't redirecting the request to a different target at all. You are dispatching the request to a different source. Use ExternalContext#redirect() instead of ExternalContext#dispatch() .

FacesContext.getCurrentInstance().getExternalContext().redirect(uri);

A redirect basically instructs the webbrowser to fire a new HTTP request on the given URL. That's also why you see the URL change being reflected in webbrowser's address bar. A dispatch basically instructs the webserver to use a different source for the current request/response. Since this happens internally and does not end up in a new HTTP request, the webbrowser know nothing about the change and the address bar won't be changed.