Could not obtain transaction-synchronized Session for current thread

简介: 报错信息: org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread at org.

介绍一个专注于Java的网站:Java之音

报错信息:

org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
	at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:134)
	at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1041)

这个错误的提示是无法获取当前transaction-synchronized线程的会话
原因是没有为用到了事务的方法定义事务


比如:在Action中定义了该方法,用于删除数据信息操作:


而在applicationContext.xml中是这样设置的:


这表示只有以do和find打头的方法才能事务,其他方法不走事务,删除自然不能成功,于是报上面的错误。


当然,也可能不是上面这么粗心的原因,如果使用了Hibernate4报错的话,可以在web.xml中加入如下配置,程序也可以正常运行了。

<filter>
	<filter-name>SpringOpenSessionInViewFilter</filter-name>
	<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
</filter>
  <filter-mapping>
    	<filter-name>SpringOpenSessionInViewFilter</filter-name>
   	<url-pattern>/*</url-pattern>
  </filter-mapping>

网上还看到一种解决方法,针对第二种情况的,测试也可行。
1. 在spring 配置文件中加入
2. 在处理业务逻辑的类上采用注解:<tx:annotation-driven transaction-manager="transactionManager"/>

如:

@Service
public class CustomerServiceImpl implements CustomerService {  
    @Transactional
    public void saveCustomer(Customer customer) {
        customerDaoImpl.saveCustomer(customer);
    }
    ...
}


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