my hibernate version is: 3.1.rc1

Hibernate version:
Hibernate-Version: 3.1.rc1

Code between sessionFactory.openSession() and session.close():
I use follow codes;

Session s = HibernateUtil.currentSession();

Transaction tx = s.beginTransaction();
//Person p = (Person) s.load(Person.class, new Integer(1)); // (1)
Person p = (Person) s.get(Person.class, new Integer(1));
tx.commit(); //why ?
System.out.println(p.getName());

HibernateUtil.closeSession();


i can use the method s.get() and there gos well
but if i use the method s.load and there will have something is wrong!
the full stack trace as fellows;
Full stack trace of any exception that occurs:
16:11:19,984 INFO SessionFactoryImpl:432 - Checking 0 named queries
16:11:20,093 ERROR LazyInitializationException:19 - could not initialize proxy - the owning Session is disconnected
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session is disconnected
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:59)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:98)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:133)
at test.hibernate.Person$$EnhancerByCGLIB$$775d807d.getName(<generated>)
at test.hibernate.Test.main(Test.java:34)

who can tell me why can use s.get() but can not use s.load().

by the way.
my .cfg.xml file as follows
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="hibernate.connection.password">329</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<property name="hibernate.transaction.auto_close_session">false</property>

<mapping resource="test/hibernate/Person.hbm.xml"/>

</session-factory>
</hibernate-configuration>

session.load(id) will throw an exception if the object can't be found in the DB. Use load() only when you are certain that the object will be found. get() will return a null if the object cannot be found. Use get if you are not absolutely certain that the object is there.

i know about above:
see the follows code:

Session session = HibernateUtil.currentSession();
Transaction tx = session.beginTransaction();
System.out.println("session : isConnected:" + session.isConnected());
System.out.println("session : isOpen:" + session.isOpen());
tx.commit();
System.out.println("session : isConnected:" + session.isConnected());
System.out.println("session : isOpen:" + session.isOpen());

the result is:
session : isConnected:true
session : isOpen:true

session : isConnected:false
session : isOpen:true

i want to know why when i call tx.commit() ,and then the session is disconnected

maybe this can help ... in relation to the hibernate.connection.release_mode conf property .

in the version 3.0.5
there is no Exception

maybe this is a bug in the version of 3.1rc2

You need this in hibernate.cfg.xml to get the hibernate 3.0 behaviour:



This was modified in 3.1.