Java JDBC를 사용하여 모든 MySQL 데이터베이스 스키마를 나열하는 방법은 무엇입니까?

<code class="java">import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;

public class GetMySQLSchemas {

    public static void main(String[] args) throws Exception {
        // Replace "connectionURL", "user", and "password" with your actual values
        String connectionURL = "jdbc:mysql://localhost:3306/databaseName";
        String user = "username";
        String password = "password";

        try (Connection con = DriverManager.getConnection(connectionURL, user, password)) {
            DatabaseMetaData metaData = con.getMetaData();
            ResultSet rs = metaData.getCatalogs();

            while (rs.next()) {
                System.out.println("Schema Name: " + rs.getString("TABLE_CAT"));
            }
        }
    }
}</code>