public void update(Models persistentInstance) {
log.debug("deleting Tt instance");
try {
getSession().update(persistentInstance);
Transaction tx = getSession().beginTransaction();
tx.commit();
System.out.println(" tx.commit update successful In model");
log.debug("delete successful");
} catch (RuntimeException re) {
log.error("delete failed", re);
throw re;
}
}
Abbas Adel <[EMAIL PROTECTED]> wrote: Can you provide us with
modeldao.update(); code
-----Original Message-----
From: Guoxue Zhang [mailto:[EMAIL PROTECTED]
Sent: Sunday, February 25, 2007 8:20 PM
To: Jakarta Commons Users List
Subject: Update problems with hibernate & struts
Hello Guys,
When I update a record using Hibernate and Struts, I have to transfer
primary key(type is LONG) to ModelUpdadteAction class from update.jsp file.
In ModelUpdateAction.java file:
String v_id = request.getParameter("modelid");
Long v_idLong = Long.valueOf( v_id);
Models model = new Models();
model.setModelId(v_idLong);
model.setModelname("Update New record IN Models");
ModelsDAO modeldao = new ModelsDAO();
modeldao.update(model);
I cann't update the record. A error is: javax.servlet.ServletException: a
different object with the same identifier value was already associated with
the session:
If I directly update with a primary key:
Long v_idLong = Long.valueOf( "55");
Models model = new Models();
model.setModelId(v_idLong);
model.setModelname("Update New record IN Models");
ModelsDAO modeldao = new ModelsDAO();
modeldao.update(model);
It is successful.
Please reply that is what is problem and how to solv it. Thank you.
Frank
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