baseaction.java

基于hibernate,struts,spring三大框架的在线短信系统

package com.bjsxt.messages.web.actions;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import com.bjsxt.messages.model.User;

public class BaseAction extends DispatchAction {

	/**
	 * 重写DispatchAction的execute方法，添加用户是否登录的判断！
	 */
	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		//判断用户是否登录
		User currentUser = (User)request.getSession().getAttribute("login");
		if(currentUser == null){
			return mapping.findForward("login");
		}
		
		//继续执行DispatchAction的execute方法
		return super.execute(mapping, form, request, response);
	}
	
	protected User currentUser(HttpServletRequest request){
		return (User)request.getSession().getAttribute("login");
	}
	
}