Hibernate 4 spring 4无法为当前线程获取事务同步会话

Question

@Repository
public class Init {

    public static void main(String[] args) {

        Init init = new Init();
        init.addUser(init.getSessionFactory());

    }

    private SessionFactory getSessionFactory() {
        ApplicationContext context = new ClassPathXmlApplicationContext(
            new String[] { "Spring_Hibernate.xml" });

        SessionFactory sf = (SessionFactory) context.getBean("sessionFactory");

        return sf;
    }

    @Transactional
    private void addUser(SessionFactory sf) {
        Session session = sf.getCurrentSession();

        User user = new User();
        user.setName("123");
        session.save(user);
        session.close();
        sf.close();
    }
}

XML：

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="com.warmmer.bean" />
    <property name="hibernateProperties">
        <!-- <value> hibernate.dialect=org.hibernate.dialect.HSQLDialect </value> -->
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="hibernate.format_sql">true</prop>

            <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop> 
        </props>
    </property>
</bean>


<bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

<bean id="txManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

<tx:annotation-driven transaction-manager="txManager" />

错误：信息：线程“main”org.Hibernate.hibernateException中的HibernateSessionFactory的数据源[org.apache.commons.dbcp.basicDataSource@6098B14D]对HibernateTransactionManager异常使用：无法为当前线程获取事务同步会话

if：hibernate.current_session_context_class设置“thread”

然后：没有活动事务，保存无效

请问我该怎么办？

Answer 1

您并不是在spring上下文中创建“init”对象，因此spring将永远没有机会在带有管理事务的注释的方法周围封装代理

尝试将类更改为...

package my.pkg;
// Imports etc

@Repository
public class Init {

    @Autowired
    private SessionFactory sessionFactory;

    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext(
            new String[] { "Spring_Hibernate.xml" });
        Init init = context.getBean(Init.class);
        init.addUser();
    }

    @Transactional
    private void addUser() {
        Session session = sessionFactory.getCurrentSession();

        User user = new User();
        user.setName("123");
        session.save(user);
        // session.close(); DON'T NEED THESE!
        // sf.close();
    }
}

现在，您可能需要将以下内容添加到bean文件中，以便它找到您的存储库...

<context:component-scan base-package="my.pkg"/>