idouinputaction.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.IdouInputActionForm;

/** 
 * MyEclipse Struts
 * Creation date: 04-06-2006
 * IdoInput查询Action
 * XDoclet definition:
 * @struts.action path="/idouInputAction" name="idouInputActionForm" input="/pages/IdouInput.jsp" scope="request" validate="true"
 * @struts.action-forward name="serach" path="/pages/IdouSearch.jsp"
 */
public class IdouInputAction 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) {
		IdouInputActionForm idouInputActionForm = new IdouInputActionForm();
		//获取是否第一次进入该页面标记
		String Firstflag = (String)request.getSession().getAttribute("first");
		
		/*
		 * 如果是第一次进入该页面获取formbean
		 * 否则获取Session中的formbean
		 */
		if(Firstflag == null || Firstflag.trim().equals("")){
			idouInputActionForm = (IdouInputActionForm) form;
		}
		else{
			idouInputActionForm = (IdouInputActionForm) request
															.getSession()
																.getAttribute("idouInputActionForm");
		}
		ActionForward forward = new ActionForward();
		ActionErrors errors = new ActionErrors();
		SeikyuLogic logic = new SeikyuLogic();
				
		String Spage = request.getParameter("Spage"); //获取按钮点击标记
		int page = 1; //当前页
		int num = 20; //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		
		pnum = logic.getIdouSearchPagenumbers(num,page,idouInputActionForm);
		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("IdouInput.error.date.get"));
				saveErrors(request,errors);
				forward = mapping.findForward("serach");
				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++;
			}
			System.out.println("***11>>" + page);
			/*
			 * 查询信息数
			 * 如果为0则显示提示信息
			 */
			pnum = logic.getIdouSearchPagenumbers(num,page,idouInputActionForm);
			pagenum = pnum[0];
			if(pagenum == 0){
				errors.add("error",new ActionError("IdouInput.error.date.get"));
				saveErrors(request,errors);
				forward = mapping.findForward("serach");
				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 IdoSearchList = logic.getSearchDate(idouInputActionForm,num,page);
		if(IdoSearchList.size()==0){
			errors.add("error",new ActionError("IdouInput.error.date.get"));
			saveErrors(request,errors);
			forward = mapping.findForward("serach");
			return forward;
		}
		else{
			request.getSession().setAttribute("first","notfirst");
			request.getSession().setAttribute("idouInputActionForm",idouInputActionForm);
			request.getSession().setAttribute("pages",Integer.toString(page));
			request.setAttribute("pagenum",Integer.toString(pagenum));
			request.setAttribute("startnum",Integer.toString(startnum));
			request.setAttribute("endnum",Integer.toString(endnum));
			request.setAttribute("cont",String.valueOf(cont));
			request.setAttribute("IdoSearchList",IdoSearchList);
			request.getSession().setAttribute("key","1");
			request.getSession().setAttribute("Toukyu_key","null");
			forward = mapping.findForward("serach");
		}		
		return forward;
	}

}