logouteventhandler.java

MVC结构开发简单例子 非常实用的..有学习MVC的可以看看.

package com.mvc.event;

import java.io.IOException;
import java.util.ResourceBundle;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.mvc.constant.Constant;
import com.mvc.event.baseEvent.EventHandlerBase;


public class LogoutEventHandler
  extends EventHandlerBase{
  private ResourceBundle rd = ResourceBundle.getBundle( Constant.URL_PROPERTYFILE );

  protected String getURL(){
    return rd.getString( Constant.LOGOUT );
  }

  public void forward( HttpServletRequest request, HttpServletResponse response )
    throws IOException,
           ServletException{
    HttpSession session = request.getSession();

    if( session != null ){
      session.invalidate();
    }

    super._dispatch( request, response );
  }
}