异常:Transaction not successfully started
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异常:org.hibernate.TransactionException: Transaction not successfully started
错误代码:
service层
Session session = HibernateUtils.getCurrentSession();
//....数据库操作语句(调用dao层)
Transaction tx = session.beginTransaction();
tx.commit();
dao层
Session session = HibernateUtils.getCurrentSession();
//....数据库操作语句
Transaction tx = session.beginTransaction();
tx.commit();
异常详情:
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一翻检查分析后发现原因:
原来是我在同一个线程中创建了两个事务对象,
这违背了事务ACID特性中的 Isolation隔离性。
解决方案:
只要把dao层重复的事务代码去掉即可,如下:
Transaction tx = session.beginTransaction();
tx.commit();
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