u04studentaction.java

持久层hibernate技术使用的一个例子

package cn.hope.mana.action;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

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


import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.DynaActionForm;

import org.apache.struts.actions.LookupDispatchAction;

import cn.hope.mana.bo.U04StudentBO;

import cn.hope.mana.pojo.SClass;
import cn.hope.mana.pojo.Student;
import cn.hope.mana.pojo.U04CommonListVO;
public class U04StudentAction extends LookupDispatchAction{
	  Logger log = Logger.getLogger(U04StudentAction.class.getName());

	protected Map getKeyMethodMap() {
		Map map = new HashMap();
		map.put("button.sele","sele");
		map.put("button.add","add");
		map.put("button.search","search");
		map.put("button.endorse","endorse");
		return map;
	}
  private U04StudentBO u04studentBO = new U04StudentBO();

  //查询方法
  public ActionForward search(ActionMapping mapping,ActionForm form
		 ,HttpServletRequest request,HttpServletResponse response)throws Exception{

	 ActionMessages errors = new ActionMessages();
	 DynaActionForm studentForm = (DynaActionForm) form;
	 Student st = new Student();
	 U04CommonListVO cl_vo = new U04CommonListVO();
	 List list = null;
	 SClass sclass = new SClass(); 

	 int start = 0;//起始记录
	 try{
		     st = (Student)studentForm.get("student");
		     if(StringUtils.isNotEmpty(request.getParameter("start"))){//判断是否为空
				 start =  Integer.parseInt(request.getParameter("start"));
			 }
	     list = u04studentBO.U04ClassSearchAll(sclass);
		 cl_vo  = u04studentBO.serachAll(st,start);//调用bo中的查询方法返回一个分页实体
		 request.getSession().setAttribute("studentList",cl_vo);//把返回的实体set到session
		 request.getSession().setAttribute("classList",list);//所有班级集合		 
		 return mapping.findForward("success");
	 }catch(Exception e){
		 //log.error(e);
		 e.printStackTrace();
		 errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("errors.u04exception"));
		 return mapping.findForward("errorPage");
	 }	 
 }
  //添加方法
  public ActionForward add(ActionMapping mapping,ActionForm form
			 ,HttpServletRequest request,HttpServletResponse response)throws Exception{
	  System.out.println("addaddadddddddddddd");
	 return mapping.findForward("success");
	 
	}
  //执行方法
  public ActionForward endorse(ActionMapping mapping,ActionForm form
			 ,HttpServletRequest request,HttpServletResponse response)throws Exception{
	  ActionMessages errors = new ActionMessages();
		 DynaActionForm studentForm = (DynaActionForm) form;
		 Student st = new Student();
		 try{
		 Integer seleid = (Integer)studentForm.get("seleId");//删除，报表，邮件群发，选择下拉列表id
		 String[] u04CheckStr = (String[])studentForm.get("u04CheckStr");//复选框数组
		 if(seleid!=null){   //判断下拉列表不为null
			 if(u04CheckStr.length>0){
		 int i = seleid.intValue();
		 if(i>=0){ //下拉列表的值必须大于等于0
		 if(i==1){//对下拉列表进行判断
		         for(int j = 0; j < u04CheckStr.length;j++){
				 String s = u04CheckStr[j];
				 st = u04studentBO.searchByKey(s,false);//查询指定id的实体
				 st.setFlag("1");//更改指定记录值
				 u04studentBO.modify(st); //调用修改方法
		        } 
		         return mapping.findForward("delet");
		 }
		 }
		 }
		 }
		 return mapping.findForward("success");
		 }catch(Exception e){
			 log.error(e);
			 e.printStackTrace();
			 errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("errors.u04exception"));
			 return mapping.findForward("errorPage");
		 }
	}
  //按条件查询方法
  public ActionForward sele(ActionMapping mapping,ActionForm form
			 ,HttpServletRequest request,HttpServletResponse response)throws Exception{
	     ActionMessages errors = new ActionMessages();
		 DynaActionForm studentForm = (DynaActionForm) form;
		 U04CommonListVO cl_vo = new U04CommonListVO();
		 int start = 0;//起始记录
		 String name="";
		 boolean eq;
		 boolean isname;
	    try{
	    	if(StringUtils.isNotEmpty(request.getParameter("start"))){//判断是否为空
				 start =  Integer.parseInt(request.getParameter("start"));
			 }
	    	 name = (String) studentForm.get("nameText");
	    	 isname=u04studentBO.uName(name);
	    	 if(isname){
	    		 Boolean isEq = (Boolean) studentForm.get("isEq");
	    		 if(isEq==null){
                   eq = false;	 
                   cl_vo  = u04studentBO.serachName(name,start,eq);
                   int gc = cl_vo.getCount();
        
                   request.getSession().setAttribute("studentList",cl_vo);
                 if(gc>0){
                   return mapping.findForward("success");
                 }
                 else{
                	 return mapping.findForward("nouser");
                 }
	    		 }
	    		 else{
	    			 eq = isEq.booleanValue();
	    			 cl_vo  = u04studentBO.serachName(name,start,eq); 	
	    			 request.getSession().setAttribute("studentList",cl_vo);
	    			   int gc = cl_vo.getCount();		
	    			   if(gc>0){
	                       return mapping.findForward("success");
	                     }
	                     else{
	                    	 return mapping.findForward("nouser");
	                     }
	    		 }
	    	 }
	    	 else{
	    		 
	    	     Integer cid = (Integer) studentForm.get("seleClassid");
	    	     
	    	     int classid = cid.intValue();
	    	     if(classid==0){
	    	    	 return mapping.findForward("success");
	    	     }
	    	     else{
	    	     cl_vo  = u04studentBO.classSerachAll(classid,start);
	    	     request.getSession().setAttribute("studentList",cl_vo);
	    	     return mapping.findForward("success");
	    	 }
	    	 }
	    }catch(Exception e){
			 log.error(e);
			 e.printStackTrace();
			 errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("errors.u04exception"));
			 return mapping.findForward("errorPage");
		 }
	}
  }