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>

That's becouse load is only to objects that you already got:






[/quote]

with "got" I mean already loaded /in session. load does not issue sql queries.

not true.

ice - it appears as though the session is closing right after the transaction has been committed. Make sure you do not actually have the application configured to do this - and just out of curiosity, what happens when both transaction method lines are commented out?

Yes, Dennis is right. But let me explain better.
Load method does issue SQLs but it returns Proxy instances of your object.
It means that the attributes will not be loaded from database to your object when you issue load, just when you acess the attribute with get method.
Your session should be seted to close when closing transaction. After you close the session you can't fire an acessor method in a unloaded proxy, becouse it needs a session to load itself.
When you get an object it's ready to be disconnected from session. At least if it don't try to access lazy collections.