Source Code : Jndi DataSource

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Jndi DataSource

 
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Hashtable;

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

import oracle.jdbc.pool.OracleDataSource;

public class JndiDataSource {

  static Connection conn = null;

  static Statement stmt = null;

  static ResultSet rs = null;

  static Context ctx = null;

  static DataSource ds = null;

  public static void main(String args[]) throws Exception {
    String sp = "com.sun.jndi.fscontext.RefFSContextFactory";
    String file = "file:/e:/JNDI";
    String dataSourceName = "jdbc/myDatabase";

    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, sp);
    env.put(Context.PROVIDER_URL, file);
    ctx = new InitialContext(env);

    bindDataSource(ctx, dataSourceName);

    DataSource ds = null;
    ds = (DataSource) ctx.lookup(dataSourceName);

    Connection conn = ds.getConnection();

    Statement stmt = conn.createStatement();
    ResultSet rs = stmt.executeQuery("SELECT Name FROM Employees");

    while (rs.next())
      System.out.println(rs.getString("name"));

    ctx.close();
    rs.close();
    stmt.close();
    conn.close();

    ctx.close();
    conn.close();
  }

  public static void bindDataSource(Context ctx, String dsn) throws SQLException, NamingException {

    OracleDataSource ods = new OracleDataSource();

    ods.setUser("yourName");
    ods.setPassword("mypwd");
    ods.setDriverType("thin");
    ods.setDatabaseName("ORCL");
    ods.setServerName("localhost");
    ods.setPortNumber(1521);

    ctx.rebind(dsn, ods);

  }
}

 

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