teachersaction.java

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package com.zjxy.hibernate.action;

import java.util.List;

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.action.ActionMessage;
import org.apache.struts.actions.DispatchAction;

import com.zjxy.hibernate.base.PageDAO;
import com.zjxy.hibernate.base.TeacherManager;
import com.zjxy.hibernate.form.TeacherForm;
import com.zjxy.hibernate.pagerHelp.Pager;
import com.zjxy.hibernate.pagerHelp.PagerHelp;


public class TeachersAction extends DispatchAction{
	/**
	 * 教师信息一览画面显示
	 * @param actionMapping
	 * @param actionForm
	 * @param httpServletRequest
	 * @param httpServletresponse
	 * @return
	 */
	 public ActionForward display(ActionMapping actionMapping,
             ActionForm actionForm,
             HttpServletRequest httpServletRequest,
             HttpServletResponse httpServletresponse) {  
		    // 用于输出到页面的记录集合
	        List clInfos = null;
	        String sqlBean = "from com.zjxy.hibernate.model.Teacher";
	        // 记录总行数
	        int totalRows = 0;
	        TeacherManager teacherManager = new TeacherManager();
	        List list = teacherManager.getTeacherList();
	        totalRows = list.size();
	        PageDAO pageDAO = new PageDAO();

	        // 取得当前表中的总行数

	        // 通过PagerHelper类来获取用于输出到页面的pager对象
	        Pager pager=PagerHelp.getPager(httpServletRequest,totalRows);

	        // 取出从startRow开始的pageSize行记录
	        try {
	            clInfos = pageDAO.findWithPage(pager.getPageSize(), pager.getStartRow(),sqlBean);
	            } catch (Exception ex) {
	                servlet.log(ex.toString());
	         }
	       
	         Integer total = Integer.valueOf(totalRows);
	         //把输出的记录集和pager对象保存到request对象中
	         httpServletRequest.setAttribute("TOTALROWS", total);
	         httpServletRequest.setAttribute("CLINFOS", clInfos);
	         httpServletRequest.setAttribute("PAGER", pager);
	         
         return actionMapping.findForward("display");
        }
	 /**
		 * 教师信息查询
		 * @param actionMapping
		 * @param actionForm
		 * @param request
		 * @param response
		 * @return
		 */
	 public ActionForward search(ActionMapping actionMapping,
	         ActionForm form,
	         HttpServletRequest request,
	         HttpServletResponse response) {
		     TeacherForm teacherForm = (TeacherForm) form;
		     TeacherManager teacherManager = new TeacherManager();
			 String name = teacherForm.getTeacherIDSearch();
			 // 用于输出到页面的记录集合
		        List clInfos = null;
		        String sqlBean = "from com.zjxy.hibernate.model.Teacher as teacher where teacher.teacherID=?";
		        // 记录总行数
		        int totalRows = 0;
		        List list = teacherManager.getTeacherList();
		        totalRows = list.size();
		        PageDAO pageDAO = new PageDAO();

		        // 取得当前表中的总行数

		        // 通过PagerHelper类来获取用于输出到页面的pager对象
		        Pager pager=PagerHelp.getPager(request,totalRows);

		        // 取出从startRow开始的pageSize行记录
		        try {
		            clInfos = pageDAO.findWithPage_search(pager.getPageSize(), pager.getStartRow(), sqlBean, name);
		            } catch (Exception ex) {
		                servlet.log(ex.toString());
		         }
		       
		         if (clInfos.size() == 0) {
		        	 request.setAttribute("noRecord", new ActionMessage("oes.teacher.error.noRecord"));
		         }
		         Integer total = Integer.valueOf(totalRows);
		         //把输出的记录集和pager对象保存到request对象中
		         request.setAttribute("TOTALROWS", total);
		         request.setAttribute("CLINFOS", clInfos);
		         request.setAttribute("PAGER", pager);
       
		     request.setAttribute("searchPage", new ActionMessage("searchPage"));
			 return actionMapping.findForward("searchSuccess");
		 }
}