windows 查看端口

netstat -ano # 查看所有端口 netstat -ano | findstr "8080" # 查看含有8080的行，查看指定端口 tasklist | findstr "20100" # 查看指定端口的進程 Ctrl + Shift + Esc # 打開任務管理器 public class TestInetSocketAddress {public static void main(String[] args) {InetSocketAddress inetSocketAddress = new InetSocketAddress("127.0.0.1", 8080);InetSocketAddress inetSocketAddress1 = new InetSocketAddress("localhost", 8080);System.out.println(inetSocketAddress);System.out.println(inetSocketAddress1);System.out.println(inetSocketAddress.getAddress());System.out.println(inetSocketAddress.getHostName()); // 地址 C:\Windows\System32\drivers\etc\hosts 中配置System.out.println(inetSocketAddress.getPort()); // 端口} }

ip

// 測試ip public class TestInetAddress {public static void main(String[] args) {try {// 查詢本機地址InetAddress inetAddress1 = InetAddress.getByName("127.0.0.1");System.out.println(inetAddress1);InetAddress inetAddress3 = InetAddress.getByName("localhost");System.out.println(inetAddress3);InetAddress inetAddress4 = InetAddress.getLocalHost();System.out.println(inetAddress4);// 查詢網站ip地址InetAddress inetAddress2 = InetAddress.getByName("www.baidu.com");System.out.println(inetAddress2);// 常用方法System.out.println(inetAddress2.getCanonicalHostName()); // 規范的名字14.215.177.38System.out.println(inetAddress2.getHostAddress()); // ip 14.215.177.38System.out.println(inetAddress2.getHostName()); // 域名，或者自己電腦名字 www.baidu.com} catch (UnknownHostException e) {e.printStackTrace();}} }

https://www.bilibili.com/video/BV1LJ411z7vY?p=4&spm_id_from=pageDriver

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