studentdao.java

Hibernate开发及整合应用大全 蔡雪焘编著 本书用典型的示例剖析Hibernate开发中的重点和难点

/*
 * 创建日期 2005-7-2
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package persistence;

import java.util.Iterator;
import java.util.List;


import model.Certificate;
import model.Course;
import model.Interesting;
import model.Student;
import model.Teacher;
import model.Team;

import org.hibernate.FetchMode;
import org.hibernate.FlushMode;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.MatchMode;
import org.hibernate.criterion.Restrictions;

/**
 * @author Administrator
 * 
 * TODO 要更改此生成的类型注释的模板，请转至 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
public class StudentDAO extends BaseDAO{
    static Session session=null;
    static Session session2=null;
    static Transaction tx=null;


	public static Student  test() {
	    Student stu=null;
		Team team=null;
		try {
		   	session = HibernateUtil.currentSession(); //开启连接
			tx = session.beginTransaction(); //开启事务
			
			stu=(Student) session.get(Student.class,"5abfe4c705ca8ee00105ca8ee42b0001");
//			team=(Team) session.get(Team.class,"ff80808105416d3b0105416d3eca0002");

//			Certificate cer=(Certificate) session.get(Certificate.class,"5abfe4c705ca8ee00105ca8ee42b0001");
//			Course co=(Course) session.get(Course.class,"5abfe4c705ca8ee00105ca8ee45d0002");
//			Interesting i=session.get(Interesting.class,"")
			

//			System.out.println(team.getStudents().size());
//			List list=session.createQuery("from Teacher").list();

		

			tx.commit();

		} catch (HibernateException e) { //捕捉例外
			e.printStackTrace();
			tx.rollback();
		}finally
		{
			HibernateUtil.closeSession(session);
		}
		return stu;

	}



}