如何解析Postgresql JDBC url以获得主机名、端口和db_name

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class PostgresqlUrlParser {
    public static void main(String[] args) {
        String jdbcUrl = "jdbc:postgresql://localhost:5432/mydatabase";

        // 使用正则表达式解析主机名、端口和数据库名称
        Pattern pattern = Pattern.compile("jdbc:postgresql://([^:/]+):(\\d+)/(.+)");
        Matcher matcher = pattern.matcher(jdbcUrl);

        if (matcher.find()) {
            String host = matcher.group(1);
            String port = matcher.group(2);
            String dbname = matcher.group(3);

            System.out.println("主机名：" + host);
            System.out.println("端口：" + port);
            System.out.println("数据库名称：" + dbname);
        } else {
            System.out.println("无法解析JDBC URL");
        }
    }
}