如何在Oracle Service Bus 11g中处理java调出结果集数据？

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JavaCalloutService {
    public static void main(String[] args) {
        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;

        try {
            // 连接数据库
            connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "username", "password");

            // 执行SQL查询语句
            String sql = "SELECT * FROM employees";
            statement = connection.prepareStatement(sql);
            resultSet = statement.executeQuery();

            // 处理结果集数据
            while (resultSet.next()) {
                // 从结果集中获取数据
                String employeeId = resultSet.getString("employee_id");
                String firstName = resultSet.getString("first_name");
                String lastName = resultSet.getString("last_name");

                // 在这里可以对数据进行进一步处理，例如保存到变量中或者输出到日志中
                System.out.println("Employee ID: " + employeeId);
                System.out.println("First Name: " + firstName);
                System.out.println("Last Name: " + lastName);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            // 关闭数据库连接和资源
            try {
                if (resultSet != null) {
                    resultSet.close();
                }
                if (statement != null) {
                    statement.close();
                }
                if (connection != null) {
                    connection.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}