Java Kill Process killProcess(int port)

Description

kill Process

License

Open Source License

Declaration

public static void killProcess(int port) 

Method Source Code

//package com.java2s;
/*//w ww.  j  av  a  2 s  . com
 * Copyright 2014, Luis Filipe Nassif
 * 
 * This file is part of MultiContentViewer.
 *
 * MultiContentViewer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MultiContentViewer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with MultiContentViewer.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;

public class Main {
    public static void killProcess(int port) {

        int pid = getPid(port);
        if (pid == 0) {
            return;
        }

        String[] command = { "taskkill", "/F", "/T", "/PID", Integer.toString(pid) };
        if (System.getProperty("os.name").startsWith("Linux")) {
            String[] cmd = { "kill", "-9", Integer.toString(pid) };
            command = cmd;
        }

        try {
            Process killer = Runtime.getRuntime().exec(command);
            int result = killer.waitFor();
            System.out.println("Killed pid " + pid + " exitValue: " + result);

        } catch (IOException e1) {
            e1.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public static int getPid(int port) {
        if (System.getProperty("os.name").startsWith("Windows")) {
            return getPidWin(port);
        } else {
            return getPidLinux(port);
        }
    }

    public static int getPidWin(int port) {
        String[] command = { "netstat", "-on" };
        try {
            Process netstat = Runtime.getRuntime().exec(command);

            StringBuilder conectionList = new StringBuilder();
            Reader reader = new InputStreamReader(netstat.getInputStream());
            char[] buffer = new char[1024];
            for (int n = reader.read(buffer); n != -1; n = reader.read(buffer)) {
                conectionList.append(buffer, 0, n);
            }
            reader.close();
            String[] conections = conectionList.toString().split("\n");
            int portIdx = 10000;
            String pid = null;
            for (String conection : conections) {
                int idx = conection.indexOf(":" + port);
                if (idx == -1 || idx > portIdx) {
                    continue;
                }
                String state = "ESTABLISHED";
                int stateIdx = conection.indexOf(state);
                if (stateIdx == -1) {
                    continue;
                }
                portIdx = idx;
                idx = stateIdx + state.length();
                pid = conection.substring(idx).trim();
            }
            if (pid != null) {
                return Integer.valueOf(pid);
            }

        } catch (Exception e) {
        }

        return 0;

    }

    public static int getPidLinux(int port) {
        String[] command = { "netstat", "-anp" };
        try {
            Process netstat = Runtime.getRuntime().exec(command);

            StringBuilder conectionList = new StringBuilder();
            Reader reader = new InputStreamReader(netstat.getInputStream());
            char[] buffer = new char[1024];
            for (int n = reader.read(buffer); n != -1; n = reader.read(buffer)) {
                conectionList.append(buffer, 0, n);
            }
            reader.close();
            String[] conections = conectionList.toString().split("\n");
            String pid = null;
            for (String conection : conections) {
                if (conection.contains(":" + port) && conection.contains("/soffice.bin")) {
                    int idx = conection.indexOf("/soffice.bin");
                    int idx2 = idx;
                    while (Character.isDigit(conection.charAt(--idx2)))
                        ;
                    pid = conection.substring(idx2 + 1, idx);
                }
            }
            if (pid != null) {
                return Integer.valueOf(pid);
            }

        } catch (Exception e) {
        }

        return 0;
    }
}

Related

1. killProcess(String name)
2. killProcess(String processName)
3. killProcess(String processName)
4. killProcessesTree(String rootNamePart)