关于spring3.2.2配置事务问题

Question

我的applicationContext.xml配置如下：

<?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-3.0.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
">
    
    <bean name="S3Impl" class="cn.xiaoxing.s3.dao.impl.S3Impl">
        <property name="sessionFactory" ref="dbConfig"></property>
    </bean>
    
    <bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName">
            <value>com.mysql.jdbc.Driver</value>
        </property>
        <property name="url">
            <value>jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8</value>
        </property>
        <property name="username" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>
    
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 
        <property name="dataSource" ref="dataSource"/> 
    </bean> 
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="get*" read-only="true" />
            <tx:method name="*" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="myPointCut" expression="execution(* cn.xiaoxing.s3.dao.impl.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="myPointCut"/>
    </aop:config>

    <!-- 在Spring的application context中创建 SessionFactory -->
    <bean id="dbConfig" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        
        <!-- 资源注册 -->
        <property name="mappingResources">
            <list>
                <value>cn/xiaoxing/s3/vo/UserModel.hbm.xml</value>
            </list>
        </property>
        
        <!-- 可选配置 -->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.current_session_context_class">thread</prop>
            </props>
        </property>
    </bean>
</beans>

 DAO实现部分代码如下：

@Override
    public boolean create(UserModel um) {
        
        Session session = sessionFactory.getCurrentSession();
        session.save(um);
        /*Transaction ts = session.beginTransaction();
        try{
            session.save(um);
            ts.commit();
        }catch(Exception err){
            ts.rollback();
            err.printStackTrace();
            return false;
        }
        */
        return true;
    }

 报错信息如下：

Exception in thread "main" org.hibernate.HibernateException: save is not valid without active transaction
    at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:348)
    at $Proxy5.save(Unknown Source)
    at cn.xiaoxing.s3.dao.impl.S3Impl.create(S3Impl.java:22)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
    at $Proxy4.create(Unknown Source)
    at cn.xiaoxing.s3.Client.main(Client.java:20)

 我的问题是，如果按照上面代码执行的时候会报上面的错误，但如果我在DAO实现类中写hibernate事务后，就可以正常插入数据了，我想显然是因为配置的事务没有生效的缘故，自己折腾了半天也没有搞好，所以请各位帮忙指点。

我用的版本：spring3.2.2   hibernate4

Answer 1

DataSourceTransactionManager 缓存HibernateTransactionManager