===========spring.xml,TestDao.java,DomainObject.java,Client.java========
===========spring.xml=========
<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd"> <bean id="placeHolder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" p:locations="classpath:jdbc.properties" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="annotatedClasses"> <list> <value>com.spring.ch11.dao.hibernate.demo.DomainObject</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.MySQL5Dialect </prop> </props> </property> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <bean id="com.spring.ch11.dao.hibernate.demo.TestDao" class="com.spring.ch11.dao.hibernate.demo.TestDao" p:sessionFactory-ref="sessionFactory"> </bean> </beans>
===================TestDao.java
package com.spring.ch11.dao.hibernate.demo;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
public class TestDao {
private SessionFactory sessionFactory;
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public Session getSession() {
return this.sessionFactory.openSession();
}
}
===================DomainObject.java
package com.spring.ch11.dao.hibernate.demo; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "demo") public class DomainObject implements Serializable { private int id; private float unitPrice; private String name; @Id public int getId() { return id; } public void setId(int id) { this.id = id; } public float getUnitPrice() { return unitPrice; } public void setUnitPrice(float unitPrice) { this.unitPrice = unitPrice; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
===================Client.java
package com.spring.ch11.dao.hibernate.demo; import java.util.List; import org.apache.commons.lang.builder.ToStringBuilder; import org.hibernate.Session; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Client { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml",Client.class); TestDao testBean = (TestDao) context.getBean(TestDao.class.getName()); Session init = testBean.getSession(); System.out.println(init); // init.beginTransaction(); List<DomainObject> demoList = init.createQuery("from DomainObject").list(); for (DomainObject demo : demoList) { System.out.println(ToStringBuilder.reflectionToString(demo)); } // init.getTransaction().commit(); } }
说明:openSession改成getCurrentSession的话就会报错No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here。
此时解决方案是:
在hibernateProperties中添加
<prop key="hibernate.current_session_context_class"> thread </prop> <prop key="hibernate.transaction.factory_class"> org.hibernate.transaction.JDBCTransactionFactory </prop>