previousaction.java

一个简单的人员管理。运用了ajax和struts、hibernate框架开发。

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.liu.ems.struts.action;

import java.util.List;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.liu.ems.pub.PageBean;
import com.liu.ems.pub.PagerDAO;

/** 
 * MyEclipse Struts
 * Creation date: 01-08-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class PreviousAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		try{
			HttpSession session=request.getSession();
			String hql="from Employees";
			int pageSize=2;
			PageBean page=(PageBean)session.getAttribute("empPager");
			int pageIndex=page.getPageIndex()-1;
			page.setPageIndex(pageIndex);
			session.setAttribute("empPager", page);
			List list=new PagerDAO().findByPageNo(hql, pageSize, pageIndex);
			request.setAttribute("empList", list);
		}catch(Exception e){
			e.printStackTrace();
		}
		return mapping.findForward("Selectloyees");
	}
}