用Java模拟URL

import java.net.MalformedURLException;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://www.example.com:8080/path?query=value");
            System.out.println("协议：" + url.getProtocol());
            System.out.println("主机名：" + url.getHost());
            System.out.println("端口号：" + url.getPort());
            System.out.println("路径：" + url.getPath());
            System.out.println("查询字符串：" + url.getQuery());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
    }
}

协议：https
主机名：www.example.com
端口号：8080
路径：/path
查询字符串：query=value