rewmanagedaoimpl.java

用jsp,servlet实现人力资源管理系统

package com.dao.impl;

import java.util.List;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;

import com.dao.RewManageDAO;
import com.entity.RewManage;
import com.hibernate.HibernateSessionFactory;

public class RewManageDAOImpl implements RewManageDAO {

	public boolean addRewManage(RewManage rewManage) {


		Session session = HibernateSessionFactory.openHibernateSession();
		boolean state = false;
		try {
			Transaction tran = session.beginTransaction();
			session.save(rewManage);
			tran.commit();
			state = true;
		} catch (HibernateException e) {
			e.printStackTrace();
		}
		return state;
	}

	public boolean delRewManage(int rewId) {

		RewManage rewManage = null;
		Session session = HibernateSessionFactory.openHibernateSession();
		boolean state = false;
			try {
				Transaction tran = session.beginTransaction();
				
				rewManage = queryRewManageByRewId(rewId);
					
					session.delete(rewManage);
				
				tran.commit();
				state = true;
			} catch (HibernateException e) {
				e.printStackTrace();
			}
			return state;
	}

	public List queryRewManage() {

		Session session = HibernateSessionFactory.openHibernateSession();
		Query query = null;
		List result = null;
		try {
			query = session.createQuery("from RewManage");
			result = query.list();
		} catch (HibernateException e) {
			e.printStackTrace();
		}
		return result;
	}

	public RewManage queryRewManageByEmpId(int empId) {

		Session session = HibernateSessionFactory.openHibernateSession();
		Query query = null;
		List list = null;
		RewManage rewManage = new RewManage();
		try {
			query = session.createQuery("from RewManage e where e.empId="+empId+"");
			list = query.list();
			rewManage = (RewManage) list.get(0);
		} catch (HibernateException e) {
			e.printStackTrace();
		}
		return rewManage;
	}

	public RewManage queryRewManageByRewId(int rewId) {

		Session session = HibernateSessionFactory.openHibernateSession();
		RewManage rewManage = null;
		try {
			rewManage = (RewManage) session.get(RewManage.class, rewId);
		} catch (HibernateException e) {
			e.printStackTrace();
		}
		return rewManage;
	}

	public boolean updateRewManage(RewManage rewManage) {

		Session session = HibernateSessionFactory.openHibernateSession();
		boolean state = false;
		try {
			Transaction tran = session.beginTransaction();
			session.update(rewManage);
			tran.commit();
			state = true;
		} catch (HibernateException e) {
			e.printStackTrace();
		}	
		return state;
	}

}