问题描述
最近刚学spring，在事务管理这自己写了个小例子，可是老运行不通过，请大虾看看。下面是我的代码：首先是DAO接口，UserDaoService：package org.ultimania.dao;import java.util.List;import org.ultimania.model.User;public interface UserDaoService {public List<User> getAll();}接口实现，UserDaoImpl：package org.ultimania.dao;import java.util.List;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import org.springframework.transaction.annotation.Propagation;import org.springframework.transaction.annotation.Transactional;import org.ultimania.model.User;public class UserDaoImpl extends HibernateDaoSupport implements UserDaoService{@SuppressWarnings("unchecked")@Transactional(propagation=Propagation.REQUIRED)public List<User> getAll(){List<User> list = this.getHibernateTemplate().find("from User");return list;}}接下来是我的测试代码：package org.ultimania.test;import java.util.List;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.ultimania.dao.UserDaoImpl;import org.ultimania.dao.UserDaoService;import org.ultimania.model.User;public class UserDaoTest {public static void main(String[] args){List<User> list = null;UserDaoService userDaoImpl ;ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");userDaoImpl = (UserDaoService)ctx.getBean("userDao");try{list = userDaoImpl.getAll();}catch(Exception e){e.printStackTrace();}finally{if(list==null){System.out.println("faled");}else{System.out.println(list.size());}}}}然后是spring配置文件，applicationContext.xml:<?xml version="1.0" encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"><tx:annotation-driven transaction-manager="transactionManager" /><bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"><property name="sessionFactory"><ref bean="sessionFactory"/></property></bean><bean id="sessionFactory"class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"><property name="configLocation"value="classpath:hibernate.cfg.xml"></property></bean><bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"><property name="sessionFactory"><ref bean="sessionFactory"/></property></bean><bean id="userDao" class="org.ultimania.dao.UserDaoImpl"><property name="hibernateTemplate"><ref bean="hibernateTemplate" /></property></bean></beans>我用的是注解式事务管理的方式，hibernate的东西是没错的，现在的问题是如果我在UserDaoImpl不添加事务声明@Transactional(propagation=Propagation.REQUIRED)，运行是没有错误的，可是我一添加这句声明，运行就错了。下面是异常信息：Exception in thread "main" java.lang.AbstractMethodError: org.springframework.orm.hibernate3.SpringTransactionFactory.beginTransaction(Lorg/hibernate/jdbc/JDBCContext;Lorg/hibernate/transaction/TransactionFactory$Context;)Lorg/hibernate/Transaction;at org.hibernate.jdbc.JDBCContext.beginTransaction(JDBCContext.java:271)at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1079)at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:558)at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)at $Proxy5.getAll(Unknown Source)at org.ultimania.test.UserDaoTest.main(UserDaoTest.java:19)这个问题困扰我好久了，一直没有解决，只能请大虾们帮我看看了。 问题补充：soartju 写道
解决方案
引用@Transactional(propagation=Propagation.REQUIRED)，运行是没有错误的，可是我一添加这句声明，运行就错了相应的jar 包 是否加入？annotation 的版本和hibernate 版本是否匹配？
解决方案二：
<bean id="userDao" class="org.ultimania.dao.UserDaoImpl"><property name="hibernateTemplate"><ref bean="hibernateTemplate" /></property></bean> 确定是org.ultimania.dao.UserDaoImpl"？UserDaoService userDaoImpl; 你先声明成UserDaoImpl userDaoImpl;试试
解决方案三：
UserDaoService userDaoImpl ;ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");userDaoImpl = (UserDaoService)ctx.getBean("userDao"); 改成userDaoImpl = (UserDaoImpl)ctx.getBean("userDao"); 试一下。
解决方案四：
查询的动作加上这个propagation=Propagation.REQUIRED 肯定不正确呀！！应该是readOnly 吧。。