logincounter.java

来自「webwork source」· Java 代码 · 共 52 行

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.examples.events;

import webwork.action.ActionSupport;
import webwork.action.SessionAware;

import java.util.Map;

/**
 * This code is an adaptation of the EventHandler example from the Rocks homepage by Christian Cryder
 * http://xmlc.enhydra.org/EventHandler/
 */
public class LoginCounter
   extends ActionSupport
   implements SessionAware
{
   // Attributes ----------------------------------------------------
   Map session;
   
   // Public --------------------------------------------------------
   public int getCount()
   {
      return ((Integer)session.get("count")).intValue();
   }
   
   // SessionAware implementation ------------------------------------
   public void setSession(Map session)
   {
      this.session = session;
   }
   
   // Action implementation ----------------------------------------
   protected String doExecute()
   {
      Integer count = (Integer)session.get("count");
      
      if (count == null)
         count = new Integer(0);
      
      count = new Integer(count.intValue()+1);
      
      session.put("count", count);
      
      return SUCCESS;
   }
}