[jboss-user] [Installation, Configuration & DEPLOYMENT] - Re: Problem with connecton pooling in JBOSS 4.2.2GA

priyarao234 do-not-reply at jboss.com
Fri Jun 20 01:07:06 EDT 2008


thankQ kiran 4 ur fast reply but, already i configured mysql-ds.xml filr as shown bellow..

mysql-ds.xml


  <local-tx-datasource>
    <jndi-name>DefaultDS</jndi-name>
    <connection-url>jdbc:mysql://localhost:3306/jmsDB</connection-url>
    <driver-class>com.mysql.jdbc.Driver</driver-class>
    <user-name>root</user-name>
    root
   <max-pool-size>50</max-pool-size>
  <min-pool-size>10</min-pool-size> 
.....
.....



and as part of my progrm my code is as follows

package com.v2.util;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;

public class DBConnFactory
{ 
	static Connection con=null;
	@SuppressWarnings("unchecked")
	public static Connection getConnection() throws NamingException, SQLException
	{
		
		InitialContext ic = null;
		DataSource ds = null;
		Hashtable env = new Hashtable();

		env.put(Context.INITIAL_CONTEXT_FACTORY,
				"org.jnp.interfaces.NamingContextFactory");
		env.put(Context.URL_PKG_PREFIXES,
				"=org.jboss.naming:org.jnp.interfaces");
		env.put(Context.PROVIDER_URL, "jnp://localhost:1099");
		ic = new InitialContext(env);
		ds=(DataSource)ic.lookup("java:/DefaultDS");
		con = ds.getConnection();
		
		return con;
	}
	public static void main(String[] args) {
		try {
			System.out.println("connection---"+ DBConnFactory.getConnection());
		} catch (NamingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}



But whole running my progrm it showing the following error


javax.naming.NameNotFoundException: DefaultDS not bound
	at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
	at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
	at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
	at org.jnp.server.NamingServer.lookup(NamingServer.java:296)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
	at sun.rmi.transport.Transport$1.run(Transport.java:153)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
	at java.lang.Thread.run(Thread.java:595)
	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
	at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
	at javax.naming.InitialContext.lookup(InitialContext.java:351)
	at com.v2.util.DBConnFactory.getConnection(DBConnFactory.java:28)
	at com.v2.util.DBConnFactory.main(DBConnFactory.java:35)


now u tell me how can i cross this....




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