《Ping_JAVA_测试程序》.docVIP

package util.net; import java.util.*; class PingHelper { private static final String CMD = CMD /C PING ; private Process cmdProcess; public int ping(String ip){ try{ cmdProcess = Runtime.getRuntime().exec(CMD+ip); cmdProcess.waitFor(); //System.out.println(cmdProcess.exitValue()); return cmdProcess.exitValue(); }catch(Exception e){ e.toString(); }finally{ if(cmdProcess != null) cmdProcess.destroy(); } return -1; } public static void main (String[] args) { PingHelper pm = new PingHelper(); System.out.println(RETURN: +pm.ping(127.0.0.2)); } } public class PingMaster implements Runnable { private PingHelper pingHelper; private Integer sleepTime; private HashMapString,Integer pingMap; public PingMaster(Integer sleepTime,HashMapString,Integer pingMap){ this.pingHelper = new PingHelper(); this.sleepTime = sleepTime; this.pingMap = pingMap; } public synchronized void setPingStatus(String pingIP,Integer pingStatus){ pingMap.put(pingIP,pingStatus); } public HashMapString,Integer getPingStatus(){ return this.pingMap; } public void run(){ while(true){ SetString pingIPs = pingMap.keySet(); for(String pingIP : pingIPs){ int pingStatus = pingHelper.ping(pingIP); setPingStatus(pingIP,pingStatus); } try{ Thread.sleep(sleepTime); }catch(InterruptedException e){ e.printStackTrace(); } } } public static void main (String[] args) throws InterruptedException { HashMapString,Integer map = new HashMap(); map.put(192.168.0.1,1); map.put(192.168.2.32,1); map.put(127.0.0.1,1); PingMaster p = new PingMaster(2000,map); Thread t = new Thread(p); t.join(); t.start(); while(true){ map = p.getPingStatus(); SetString set = map.keySet(); String datetime = (new Date()).toLocaleString(); for(String s : set){ System.out.println(*-*-* +datetime + Ping-Report *-*-*); System.out.println(Ping + Status: +map.get(s)); Thread.sleep(1500)