Error Detached entity passed to persisit

[sshruti dere]

I am new to hibernate. I have written a simple program with four files in it.
Employee.java it is a bean class with getters n setters in it.
hibernate.cfg.xml

<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-configuration SYSTEM "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!-- property name="hbm2ddl.auto">update</property--> <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property> <property name="connection.url">dbUrl</property> <property name="connection.username">uname</property> <property name="connection.password">pass</property > <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> <mapping resource="Employee.hbm.xml"/> </session-factory> </hibernate-configuration>

Employee.hbm.xml

<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="hibernate_prj.Employee" table="EMPLOYEE"> <meta attribute="class-description"> This class contains the employee detail. </meta> <id name="id" type="int" column="empid"> <generator class="native"/> </id> <property name="firstName" column="empname" type="string"/> <property name="dept" column="empdept" type="string"/> <property name="salary" column="empsal" type="int"/> </class> </hibernate-mapping>

StoreData.java

package hibernate_prj;

import org.hibernate.Session;  
import org.hibernate.SessionFactory;  
import org.hibernate.Transaction;  
import org.hibernate.cfg.Configuration;

public class StoreData {
	
	public static void main(String[] args) {  
	   
	    Configuration cfg=new Configuration();
	   
	    cfg.configure("hibernate.cfg.xml");//populates the data of the configuration file  
	
	    //creating seession factory object  
	    @SuppressWarnings("deprecation")
	   SessionFactory factory=cfg.buildSessionFactory();  
	
	    //creating session object  
	    Session session=factory.openSession();  
	
	    //creating transaction object  
	    Transaction t=session.beginTransaction();  
	
	    try{
	    Employee e1=new Employee();  
	
	    e1.setId(115);  
	    e1.setFirstName("sonoo");  
	    e1.setDept("jaiswal");  
	    e1.setSalary(100);
	
	    session.persist(e1);//persisting the object  
	    
	    t.commit();//transaction is commited  
            session.close();  

	      }catch(Exception e)
	      {
	    	  System.out.println("EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE "+e.toString());
	      }
	    System.out.println("successfully saved");  
	}  
}

I have created table using the following sql statement
create table employee (empid number(2,2),empname VARCHAR2(30), empdept varchar2(10), empsal number(5,2));

But when I run this program i get the following error:
org.hibernate.PersistentObjectException: detached entity passed to persist: hibernate_prj.Employee

Please help to resolve this

[amit punekar]

Please check http://stackoverflow.com/questions/6378526/org-hibernate-persistentobjectexception-detached-entity-passed-to-persist , if it helps.