Session value not displaying in jsp struts 2

Question

I have a simple application in struts 2 that allows the user to input the name and submitted.In the server side in struts 2 action class a new session is created and stored the value of username in the session.In the user.jsp I tried to display the value stored in session but it is not displaying anything.

The code for Index.jsp is given below

<body>
<form action="welcomeUser.action">
    <input type="text" name="user">
    <input type="submit" value="Submit">
</form>
</body>

The code in struts.xml is given below

<action name="welcomeUser" class="hart.test.Welcome">
                    <result name="success">user.jsp </result>
 </action>

The code in hart.test.Welcome is given below

public class Welcome extends ActionSupport
{
    private String user;
    public String getUser() {
        return user;
    }
    public void setUser(String user) {
        this.user = user;
    }
    public String execute()
    {
        HttpServletRequest request = ServletActionContext.getRequest();
        HttpSession session=request.getSession();
        //Checking session is new and creating a session
        if (session.isNew() == false) {
            session.invalidate();
            session = request.getSession(true);
            } 
        session.setAttribute("user1", user);

        return SUCCESS;
    }
}

The code in User.jsp is given below

<body>
    Welcomeee <s:property value="%{#session.user1}"/>
</body>

The problem is that it is displaying only 'Welcomeee'.Can anyone please tell the reason for it

Sometimes evaluating an expression seems obvious but the same expression might not work due to it has nothing to display. — Roman C, Sep 28 '14 at 14:04

score 0 · Answer 1 · answered Sep 27 '14 at 18:57

0

Add Struts 2 taglib definition: <%@ taglib prefix="s" uri="/struts-tags" %> at the beginning of th User.jsp file.

answered Sep 27 '14 at 18:57

Kamil Chaber

573
1
9
26

Yes I have already put .But still not getting the value. – Kiranmuralee Sep 28 '14 at 12:05

score -1 · Accepted Answer · edited May 23 '17 at 11:57

-1

Struts2 uses a Session Map, that is a wrapper over the underlying HttpSession. Use that by implementing the SessionAware Interface, like described in this answer:

public class Welcome extends ActionSupport implements SessionAware {

    private Map<String,Object> session;    
    public void setSession(Map<String,Object> session) {
        this.session = session;
    }

    private String user;
    public String getUser() {
        return user;
    }
    public void setUser(String user) {
        this.user = user;
    }

    public String execute() {
        session.put("user1", user);    
        return SUCCESS;
    }
}

edited May 23 '17 at 11:57

Community

1
1

answered Sep 27 '14 at 23:30

Andrea Ligios

47,982
25
109
228

In my original code if I wanted to display value stored in session,then I should have declared session variable outside the execute method(With getters and setters) and in user.JSP I should have written Welcomeee .Please correct me if i'm wrong – Kiranmuralee Sep 28 '14 at 17:16

Session value not displaying in jsp struts 2

2 Answers2