springMVC+Ehcache+MySQL

package com.spri.dao; import java.util.Iterator; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import com.spri.entity.DepartmentEntity; public class TestHibernateEhcache { public static void main(String[] args) { storeData(); //��Hibernate Session Session session = HibernateUtil.getSessionFactory().openSession(); session.beginTransaction(); try { //������ѯ���� Query query = session.createQuery("select s.name from DepartmentEntity s"); //���ò�ѯ���� query.setCacheable(true); List<String> names = query.list(); for (Iterator<String> it = names.iterator(); it.hasNext();) { String name = it.next(); System.out.println(name); } //��һ��ȡ��ʵ�壬����ݿ��л�ȡ long startTimeFirst = System.nanoTime(); DepartmentEntity department = (DepartmentEntity) session.load(DepartmentEntity.class, new Integer(1)); long endTimeFirst = System.nanoTime(); System.out.println("��һ��ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeFirst-startTimeFirst)); //��һ��ȡ��ʵ��,��һ�������л�ȡ�����ǵ�һ�δӻ����л�ȡ��ʱ��Ҫ�� long startTimeSecond = System.nanoTime(); department = (DepartmentEntity) session.load(DepartmentEntity.class, new Integer(1)); long endTimeSecond = System.nanoTime(); System.out.println("�ڶ���ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeSecond-startTimeSecond)); //��һ��ȡ��ʵ��,��һ�������л�ȡ��ʱ��� long startTimeSecondOne = System.nanoTime(); department = (DepartmentEntity) session.load(DepartmentEntity.class, new Integer(1)); long endTimeSecondOne = System.nanoTime(); System.out.println("�ڶ�+һ��ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeSecondOne-startTimeSecondOne)); //һ�������������ݣ��Ӷ��������л�ȡ session.evict(department); long startTimeThird = System.nanoTime(); department = (DepartmentEntity) session.load(DepartmentEntity.class, new Integer(1)); long endTimeThird = System.nanoTime(); System.out.println("�����ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeThird-startTimeThird)); //�¿���һ��Session���Ӷ��������л�ȡ Session anotherSession = HibernateUtil.getSessionFactory().openSession(); anotherSession.beginTransaction(); long startTimeFour = System.nanoTime(); department = (DepartmentEntity) anotherSession.load(DepartmentEntity.class, new Integer(1)); long endTimeFour = System.nanoTime(); System.out.println("���Ĵ�ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeFour-startTimeFour)); //��anotherSession��һ�������л�ȡ long startTimeFive = System.nanoTime(); department = (DepartmentEntity) anotherSession.load(DepartmentEntity.class, new Integer(1)); long endTimeFive = System.nanoTime(); System.out.println("�����ȡ��ʵ��"+department.getName()+"ʱ�䣺"+(endTimeFive-startTimeFive)); anotherSession.getTransaction().commit(); } finally { System.out.println(HibernateUtil.getSessionFactory().getStatistics().getQueryCachePutCount()); System.out.println(HibernateUtil.getSessionFactory().getStatistics().getEntityFetchCount()); System.out.println(HibernateUtil.getSessionFactory().getStatistics().getSecondLevelCacheHitCount()); session.getTransaction().commit(); HibernateUtil.shutdown(); } } private static void storeData() { Session session = HibernateUtil.getSessionFactory().openSession(); session.beginTransaction(); DepartmentEntity department = new DepartmentEntity(); department.setName("Human Resource"); session.save(department); session.getTransaction().commit(); } }