[求助] 谁知道在MyEclipse中直联oracle方法!

我想在MyEclipse中写一个直联oracle的方法，怎么样写啊！！
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直联?
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对啊，就是不用连接池、也不用数据源，而是直接与数据库的方法！
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用jdbc不就行了
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package util;

import java.sql.*;

public class ConnectionDB {

    private static Connection conn = null;

    private static String driver = null;

    private static String url = null;

    private static String user = null;

    private static String pass = null;

    private ConnectionDB() {

    }

    public static Connection getOracleCon() {

        driver = "oracle.jdbc.driver.OracleDriver";
        url = "jdbc:oracle:thin:@localhost:1521:itstar";// itstarΪ��ݿ����
        user = "itstar";
        pass = "itstar";

        try {
            Class.forName(driver);
        }

        catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        try {
            if (conn == null) {
                conn = DriverManager.getConnection(url, user, pass);
            }
        }

        catch (SQLException e) {
            e.printStackTrace();
        }

        return conn;
    }

    public static Connection getSqlCon() {

        driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
        url = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=dbName";// dbNameΪ��ݿ����
        user = "sa";
        pass = "sa";

        try {
            Class.forName(driver);
        }

        catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        try {
            if (conn == null) {
                conn = DriverManager.getConnection(url, user, pass);
            }
        }

        catch (SQLException ex) {
            ex.printStackTrace();
        }

        return conn;
    }

    public static void main(String[] args) {
        Connection connection = ConnectionDB.getOracleCon();
        try {
             Statement state = connection.createStatement();
             ResultSet rs = state.executeQuery("select * from users");
//             ResultSet rs = state
//                    .executeQuery("insert into usersvalues('liu','123456')");

            while (rs.next()) {
                System.err.println(rs.getString(1));
                System.err.println(rs.getString(2));
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
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在使用直联的时候，是不是需要一些.jar文件啊！发我邮箱：j2ee126@126.com ,谢谢！
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在oracle的安装目录下有个classes12.jar 就是这个 还需要传？
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问题已解决，oracle直联jar包我用的是ojdbc14.jar.
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