1

I have a login screen on which i have a simple form with username and password fields. After successful login attempt I want to store user in the session and redirect to a home page. loginUser method is part of LoginResource class

@POST
    public View loginUser(@FormParam("user") String username, @FormParam("pass") String password, @Context HttpServletRequest req) 
    {
        LoginService ls = new LoginService();
        User user = ls.login(username, password);
        if(user == null)
            return new LoginView();
        else
        {
            req.setAttribute("appUser", user);
            req.getSession().setAttribute("appUser", user);
            return new HomeView();
        }
    }

HomeView class:

public class HomeView extends View
{

    public HomeView()
    {
        super("home.ftl");
    }

}

Freemarker template home.ftl:

<html>
    <head>
    </head>
    <body>
        <#if appUser??>
            <h1>Welcome, ${appUser.username}!</h1>
        <#else>
            AppUser is not found in the session
        </#if>
    </body>
</html>

run() method of the class that extends Service:

@Override
    public void run(Configuration configuration, Environment environment) throws Exception {
        //setting session handler
         environment.setSessionHandler(new SessionHandler());
         environment.addResource(new LoginResource());
   }

The problem is that when i make a successful login attempt it seems that my user is not saved in the session. Don't know how to resolve this.

4

1 回答 1

3

问题是您没有将会话中的对象传递给 freemarker 模板：您必须将 User 传递给 HomeView。

请将您的 HomeView 更改为

public class HomeView extends View
{
    private User user;

    public HomeView(User user)
    {
        super("home.ftl");
        this.user = user;
    }

    public User getUser() {
        return user;
    }
}

并在您的 freemarker 模板中将其作为 ${user.username} 引用。

希望它可以帮助你。

再见，皮耶罗

于 2013-07-19T15:48:33.950 回答