Hi
I have been trying to configure Hibernate with Oracle but it is giving me an error saying "Cannot open connection".

Below is the error :
Exception in thread "main" org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
at org.hibernate.jdbc.AbstractBatcher.openConnection(AbstractBatcher.java:384)
at org.hibernate.jdbc.JDBCContext.connect(JDBCContext.java:141)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:88)
at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:73)
at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:66)
at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:130)
at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:1809)
at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:2171)
at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:46)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:223)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:669)
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:39)
Caused by: java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:404)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110)
at org.hibernate.jdbc.AbstractBatcher.openConnection(AbstractBatcher.java:381)
... 15 more

Below is my XML file :

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc racle:thin:@localhost:1521:test</property>
<property name="connection.username">wks_test</property>
<property name="connection.password">wks_test</property>
<property name="connection.pool_size">2</property>
<property name="dialect">org.hibernate.dialect.OracleDialect</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<mapping resource="contact.hbm.xml" />
</session-factory>
</hibernate-configuration>

regards
Prashanth

Is it the missing 'o' after "jdbc" in the line above?

Hi
I think it is missed here, but the original file looks OK. Donno y it is missing here.


regards
Prashanth

This is my oracle driver setting for an 10g database

org.hibernate.dialect.Oracle9Dialect,

The dialect you are using is for a version 8 database