removefoldersaction.java

这是本人曾经在公司里用的,内部开发框架,基于struts+hibernate今天分享给大家

/**
 * 
 */
package test.folder;

import java.io.UnsupportedEncodingException;
import java.sql.ResultSet;

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

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 org.hibernate.Session;
import org.hibernate.Transaction;

import cn.bway.common.BwayHibernateException;
import cn.bway.common.WebConstant;
import cn.bway.common.action.BaseAction;
import cn.bway.common.dao.HibernateSessionFactory;

/**
 * @author Kson
 *
 */
public class RemoveFoldersAction extends BaseAction {

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 * @throws UnsupportedEncodingException 
	 * @throws Exception
	 */
	
	public ActionForward execute(ActionMapping mapping,
				ActionForm form,HttpServletRequest request,	HttpServletResponse response)
				throws BwayHibernateException, UnsupportedEncodingException {
		
		ActionErrors errors = new ActionErrors();
		String returnStr = WebConstant.FORWARD_SUCCESS;
		Session sess=null;
		ResultSet rs = null;
		String mesg = "删除成功";
		String sql = "";
		Transaction tx=null;
		
		request.setCharacterEncoding("gb2312");
		String id = request.getParameter("id3");
		String Modifymenufatherid = request.getParameter("Modifymenufatherid3");
		String Modifymenuid = request.getParameter("Modifymenuid3");
		String menefartherid="";
		String treename = request.getParameter("treename3");
		try {
			sess=HibernateSessionFactory.currentSession();
			tx=sess.beginTransaction();
			
			sql = "select * from folders where munefatherid='"+Modifymenuid+"'";
			rs =sess.connection().createStatement().executeQuery(sql);
			if(rs.next()){
				mesg ="请删除下级，才能删除上级!";
			}else{
				sql="delete from folders where id="+id+" ";
				System.out.println("the detele 没有下级的 sql:  "+sql);
				sess.connection().createStatement().executeUpdate(sql);
			}
			tx.commit();
			
			returnStr=WebConstant.FORWARD_SUCCESS;
			request.setAttribute(WebConstant.RETURN_Message,mesg);
		} catch (Exception e) {
			returnStr=WebConstant.FORWARD_FAIL;
			errors.add(ActionErrors.GLOBAL_ERROR,new ActionError("edu.system.excption",e.getMessage()));
			this.saveErrors(request,errors);
			tx.rollback();
			e.printStackTrace();
		}finally{
			HibernateSessionFactory.closeSession();
    	}
		return mapping.findForward(returnStr);
		
	}
	
}