pagelistaction.java

java源代码

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.soft136.struts.action;

import java.sql.SQLException;
import java.util.ArrayList;

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

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.soft136.struts.model.PageBean;
import com.soft136.struts.model.PersonBean;
import com.soft136.struts.model.PersonOperate;

/**
 * MyEclipse Struts Creation date: 04-18-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 * @struts.action-forward name="success" path="/pagetest.jsp"
 */
public class PageListAction 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
		ArrayList<PersonBean> arrayList = new ArrayList<PersonBean>();
		PageBean pb = null;
		PersonBean[] persons = null;
		String parameter = (String) request.getParameter("action");
		PageBean p = (PageBean) request.getSession().getAttribute("page");

		if (parameter == null || parameter.equals("null")) { // 第一次读取数据
			try {
				arrayList = new PersonOperate().getData();
				pb = new PageBean(arrayList);
				persons = pb.getPersonBean();
			} catch (Exception e) {
				e.printStackTrace();
			}

		} else {
			if (parameter == "nextPage" || parameter.equals("nextPage")) {
				pb = new PageBean(p.getArrayList());
				pb.setCurrentPage(p.getCurrentPage());
				persons = pb.getnextPage();

			}
			if (parameter == "previousPage" || parameter.equals("previousPage")) {
				pb = new PageBean(p.getArrayList());
				pb.setCurrentPage(p.getCurrentPage());
				persons = pb.getPreviouspage();
			}
		}

		request.getSession().setAttribute("page", pb);
		request.setAttribute("result", persons);
		return mapping.findForward("success");
	}
}