java查看监听端口被占用

import java.io.IOException;
import java.net.ServerSocket;

public class PortChecker {
    public static void main(String[] args) {
        int port = 8080; // 替换为你想要检查的端口号
        if (isPortInUse(port)) {
            System.out.println("端口 " + port + " 被占用");
        } else {
            System.out.println("端口 " + port + " 未被占用");
        }
    }

    public static boolean isPortInUse(int port) {
        try (ServerSocket serverSocket = new ServerSocket(port)) {
            serverSocket.setReuseAddress(true);
            return false;
        } catch (IOException e) {
            return true;
        }
    }
}

netstat -ano | findstr :8080

sudo netstat -tuln | grep :8080

sudo lsof -i :8080

taskkill /PID <PID> /F

kill -9 <PID>