seikyusearchdispatchaction.java

用strutshibernate做的项目

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.1/xslt/JavaClass.xsl

package com.dut.struts.action;

import java.util.List;

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

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

import com.dut.logic.logic.SeikyuLogic;
import com.dut.struts.form.MenuForm;

/** 
 * MyEclipse Struts
 * Creation date: 04-13-2006
 * 分页显示Seikyu信息Action
 * XDoclet definition:
 * @struts.action path="/seikyuSearchDispatchAction" name="menuForm" input="/pages/SeikyuMenu.jsp" scope="request" validate="true"
 * @struts.action-forward name="toseiS" path="/pages/SeikyuSearch.jsp"
 */
public class SeikyuSearchDispatchAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		MenuForm menuForm = (MenuForm) form;
		ActionErrors errors = new ActionErrors();
		ActionForward forward = new ActionForward();
		String Spage = request.getParameter("Spage");//获取按钮点击标记
		String jusuokodo = request.getSession()
									.getAttribute("jusuokodo").toString();//获取邮局号
		int page = 1;//当前页
		int num = 10;//每页显示信息数
		int pagenum = 0;//总页数
		int[] pnum = new int[3];//存储总页数以及当前页显示的第一条信息和最后一条信息的标号		
		SeikyuLogic Logic = new SeikyuLogic();
		pnum = Logic.getSeikyuSearchPagenum(num,page,jusuokodo);
		pagenum = pnum[0];
		
		/*
		 * 首次进入时判断信息数是否为0
		 * 如果为0则显示提示信息
		 */
		if(Spage == null || Spage.equals("")){
			if(pagenum == 0){
				errors.add("error",new ActionError("seikyusearch.data.error"));
				saveErrors(request,errors);
				forward = mapping.findForward("toseiS");
				return forward;
			}
		}
		/*
		 * 非首次进入时判断当前页或输入页数是否大于总页数
		 * 如果大于将总页数赋给当前页数
		 * 判断点击的是上一页还是下一页连接
		 * 分别处理当前页数值
		 */
		else{
			page = Integer.parseInt(request.getSession().getAttribute("pages").toString());
			if(page > pagenum){
				page = pagenum;
			}
			if(Spage.trim().equals("per") && page != 1){
				page--;
			}
			else if(Spage.trim().equals("next") && page != pagenum){
				page++;
			}
			pnum = Logic.getSeikyuSearchPagenum(num,page,jusuokodo);
			pagenum = pnum[0];
			/*
			 * 查询信息数
			 * 如果为0则显示提示信息
			 */
			if(pagenum == 0){
				errors.add("error",new ActionError("seikyusearch.data.error"));
				saveErrors(request,errors);
				forward = mapping.findForward("toseiS");
				return forward;
			}			
		}
		int startnum = pnum[1];//第一条信息标记
		int endnum = pnum[2];//最后一条信息标记
		int cont = pnum[3];//信息总数
		/*
		 * 查询信息
		 * 如果获得的List为空提示错误信息
		 * 否则跳转到下一页显示
		 */
		List dataList = Logic.getSeikyuSearchdata(num,page,jusuokodo);
		if(dataList == null){
			errors.add("error",new ActionError("seikyusearch.data.error"));
			saveErrors(request,errors);
			forward = mapping.findForward("toseiS");
			return forward;
		}
		else{
			request.getSession().setAttribute("pages",Integer.toString(page));
			request.setAttribute("pagenum",Integer.toString(pagenum));
			request.setAttribute("cont",String.valueOf(cont));
			request.setAttribute("startnum",Integer.toString(startnum));
			request.setAttribute("endnum",Integer.toString(endnum));
			request.setAttribute("dataList",dataList);
			System.out.println("         --->"+dataList.size());
			forward = mapping.findForward("toseiS");
		}		
		return forward;
	}

}