spring与hibernate整合，当手动抛出runtimeException时，spring无论怎么都不能让事务回滚，请前辈指教

spring与hibernate整合，当手动抛出runtimeException时，spring无论如何都不能让事务回滚，请前辈指教
第一个类
package spring.dao;
import javax.annotation.Resource;
import org.hibernate.SessionFactory;
import org.hibernate.Session;
import org.springframework.stereotype.Component;

import spring.entity.Log;


@Component("logDAO")
public class LogDAOImpl implements LogDAO {

private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
@Resource
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

public void addLog(Log log)  {
Session session = sessionFactory.getCurrentSession();
session.save(log);
throw new RuntimeException("运行异常");
}
}
第二个类
package spring.dao;
import javax.annotation.Resource;
import org.hibernate.SessionFactory;
import org.hibernate.Session;
import org.springframework.stereotype.Component;
import spring.entity.User;
@Component("userDAO")
public class UserDAOImpl implements UserDAO {
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
@Resource
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

public void addUser(User user)  {
Session session = sessionFactory.getCurrentSession();
session.save(user);
}
}
第3个类
package spring.service;

import javax.annotation.Resource;

import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import spring.dao.LogDAO;
import spring.dao.UserDAO;
import spring.entity.Log;
import spring.entity.User;
@Component("userService")
public class UserServiceImpl implements UserService {
private UserDAO userDAO;
private LogDAO logDAO;
public LogDAO getLogDAO() {
return logDAO;
}
@Resource(name="logDAO")
public void setLogDAO(LogDAO logDAO) {
this.logDAO = logDAO;
}
public UserDAO getUserDAO() {
return userDAO;
}
@Resource(name="userDAO")
public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}
@Transactional
public void addUser(User user) {

userDAO.addUser(user);
logDAO.addLog(new Log());
}
}
测试：
package spring.test;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import spring.entity.User;
import spring.service.UserService;
public class TestInvocationAOP {
@Test
public void testAspect()
{
ApplicationContext ctx = new FileSystemXmlApplicationContext("src\\applicationContext.xml");
//ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
UserService userService = (UserService)ctx.getBean("userService");
userService.addUser(new User());

//ctx.destroy();
}
}

配置文件applicationContext.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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"



xsi:schemaLocation="http://www.springframework.org/schema/beans
 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-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"
>

<context:annotation-config></context:annotation-config>
<context:component-scan base-package="spring"></context:component-scan>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
  <property name="url" value="jdbc:mysql://localhost:3306/webdb"/>
  <property name="username" value="root"/>
  <property name="password" value="19830112"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
  <property name="dataSource" ref="dataSource" />
  <property name="annotatedClasses">
  <list>
    <value>spring.entity.User</value>
    <value>spring.entity.Log</value>
  </list>
  </property>
  <property name="hibernateProperties">
    <props>
    <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
    <prop key="hibernate.show_sql">true</prop>
    </props>
  </property>
</bean>
<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  <property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven  transaction-manager="txManager"/>
</beans> 
[解决办法]
挖个老坟，刚刚遇到同样的问题
解决方法：使用MySQL数据库时，表必须为InnoDB类型