struts2-demo/web/WEB-INF/classes/com/demo/action/DashboardAction.java

package com.demo.action;

import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.SessionAware;

import java.util.Map;

public class DashboardAction extends ActionSupport implements SessionAware {

    private Map<String, Object> session;
    private String displayName;
    private String role;
    private String loginTime;

    @Override
    public String execute() {
        displayName = value(LoginAction.SESSION_USER, "ops-admin");
        role = value(LoginAction.SESSION_ROLE, "admin");
        loginTime = value(LoginAction.SESSION_LOGIN_TIME, "--");
        return SUCCESS;
    }

    private String value(String key, String fallback) {
        Object value = session == null ? null : session.get(key);
        return value == null ? fallback : String.valueOf(value);
    }

    public String getDisplayName() {
        return displayName;
    }

    public String getRole() {
        return role;
    }

    public String getLoginTime() {
        return loginTime;
    }

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