sessionFactory.getCurrentSession()为什么出这样的异常?
我的疑问是:
这个方法应该始终会得到一个session的,要么得到当前线程上已有的,要么得到一新的,怎么可能会因为当前线程上没有绑定一个session而抛出异常呢?
出现异常的操作:
1. 把aop的事务管理配置去掉
2. * 假设sessioinFactory已注入进来,下面是dao层代码:
* public void save(Log log) {
Session s = sessionFactory.getCurrentSession();//在此行出错
s.save(log);
}
异常:
org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63)
at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:622)
at com.bjsxt.dao.impl.LogDAOImpl.save(LogDAOImpl.java:28)
at com.bjsxt.service.UserService.add(UserService.java:34)
at com.bjsxt.service.UserServiceTest.testAdd(UserServiceTest.java:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:66)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
注:
如果在存储时用hibernateTemplate的话(即"hibernateTemplate.save(log);"),就不会有问题。因为 hibernateTemplate里面有创建新的session,有打开事务,提交事务,关闭session。但这不就证明以上出错是因为没有像 hibernateTemplate一样,做了创建session,打开事务等操作吗?但也应该是没开启事务什么的异常啊?