问javax.naming.NoInitialContextException

EN

import java.sql.Connection;
import java.sql.SQLException;

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

public class Test {

    /**
     * @param args
     */
    private static DataSource ds;

    private static Context initialContext = null;

    public static Connection getConnection()
    {
        try
        {
            initialContext = new InitialContext();
            ds = (DataSource) initialContext.lookup("jdbc/__TimerPool");
            System.out.println("data source "+ds);

                return ds.getConnection();


        }
        catch (Exception e)
        {
            System.out.println(("getConnection Exception " + e));
        }
        return null;
    }



    public static void main(String[] args) {
        System.out.println(Test.getConnection());

    }

}