usermanager.java

在线考试系统: 这是基于struts和Hibernate的最新技术的在线考试系统.数据库是MySql.能添加课程

package com.zjxy.hibernate.base;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.criterion.Expression;

import com.zjxy.hibernate.HibernateSessionFactory;
import com.zjxy.hibernate.model.User;

public class UserManager {
	Session session;
	public UserManager() throws HibernateException {
		session = getSession();
	}
	
	public List getUserList() throws HibernateException {
		return session.createCriteria(User.class).list();
	}
	
	public User userLogin(User user) {
		List list = new ArrayList();
		User userInfo = new User();
		Criteria criteria = session.createCriteria(User.class);
		criteria.add(Expression.eq("userID", user.getUserID()));
		list = criteria.list();
		
		if(list.size() == 0) { 
			return null;
		} 
		userInfo = (User) list.get(0);
		return userInfo;
	}
	
	public void closeSession() throws HibernateException {
		session.close();
	}
	
	private Session getSession() throws HibernateException {
		return HibernateSessionFactory.currentSession();
	}
}