Connecting JdbcRowSet with JNDI Directory Service

JDBC for MySQL - Herong's Tutorial Examples

∟MySQL - Reference Implementation of JdbcRowSet

∟Connecting JdbcRowSet with JNDI Directory Service

This section describes how to connect a JdbcRowSet object to a database server using JNDI directory service to lookup DataSource name.

If a JdbcRowSet object is created without a Connection object, you can provide a DataSource name to the JdbcRowSet object so that it can use a JNDI directory service to lookup a DataSource object by name. The DataSource object will be then used to create a connection object. See the sample statements below:

// Create a JdbcRowSet object without any connection
  JdbcRowSet jrs = new JdbcRowSetImpl();

// Set the DataSource name for JNDI lookup
  jrs.setDataSourceName("jdbc/mysqlDS");

// Set a SQL statement
  jrs.setCommand("SELECT 'Hello world!'");

// Lookup, connect and run the statement
  jrs.execute();

I wrote the following sample to connect a JdbcRowSet object using a JNDI directory service:

/* MySqlRowSetDataSource.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.sql.*;
import javax.sql.rowset.RowSetProvider;
import javax.sql.rowset.JdbcRowSet;
public class MySqlRowSetDataSource {
  public static void main(String [] args) {
    Connection con = null;
    try {

// RowSetFactory should be used now
//      JdbcRowSet jrs
//        = new com.sun.rowset.JdbcRowSetImpl();
      JdbcRowSet jrs
        = RowSetProvider.newFactory().createJdbcRowSet();

// Set the DataSource name for JNDI lookup
      jrs.setDataSourceName("jdbc/mysqlDS");

// Set a SQL statement
      jrs.setCommand("SELECT 'Hello world!'");

// Connect and run the statement
      jrs.execute();

// Get the result
      jrs.next();
      System.out.println("Result: "+jrs.getString(1));

// Close resources
      jrs.close();
    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
      e.printStackTrace();
    }
  }
}

But I failed to set up the JNDI directory service. So I got an exception when running this program:

Exception: JdbcRowSet (connect) JNDI unable to connect
java.sql.SQLException: JdbcRowSet (connect) JNDI unable to connect
   at com.sun.rowset.JdbcRowSetImpl.connect(JdbcRowSetImpl.java:634)
   at com.sun.rowset.JdbcRowSetImpl.prepare(JdbcRowSetImpl.java:654)
   at com.sun.rowset.JdbcRowSetImpl.execute(JdbcRowSetImpl.java:556)
   at MySqlRowSetDataSource.main(MySqlRowSetDataSource.java:25)