Question

So I’m having a problem trying to pass a String value.

The String value is entered through a login page as username.

The JSF then calls the Bean to verify log in information then proceeds to another JSF page.

I was wondering how to pass the username along to the new JSF page. Thank you.

Answer 1

If you’re performing a navigation instead of a redirect, then you basically don’t need to do anything. The information is also just available in the navigated page.

E.g. in login page,

<h:inputText value="#{bean.username}" />

and in the navigated page:

<p>You have entered the following username: #{bean.username}</p>

If you’re however performing a redirect instead of a navigation, then you basically need to store the information in a bit broader scope. You didn’t clearly elaborate the concrete functional requirement in the question, but if I guess it right, you just wanted to remember the currently logged-in user for the remaining of the HTTP session. In that case, just store it in the session scope during the login action.

public String login() {
    // ...
    User user = userService.find(username, password);
    // ...
    externalContext.getSessionMap().put("user", user);
    // ...
    return "nextpage?faces-redirect=true";
}

This way it’s available by #{user} throughout the entire HTTP session.

<p>You're logged in as #{user.name}.</p>