java 长ping ip 地址，监测 ip 地址是否开通

java 长ping ip 地址，监测 ip 地址是否开通

方法一：

   public static Boolean checkNet(String ip) {int  timeOut =  3000 ;       //超时应该在3钞以上boolean status = false;     // 当返回值是true时，说明host是可用的，false则不可。try {status = ByName(ip).isReachable(timeOut);} catch (UnknownHostException e) {("检测网络IP失败{}",e);} catch (IOException e) {e.printStackTrace();}System.out.println(status);return status;}

方式二：

public static boolean pingIp(String ipAddress)  {String line = null;boolean status = false;try {Process pro = Runtime().exec("ping " + ipAddress);BufferedReader buf = new BufferedReader(new InputStream(),"gbk"));while ((line = adLine()) != null){line = new Bytes("UTF-8"),"UTF-8");(line);ains("TTL")){ // 通了status = true;break;}else{  // ip 不通status =false;}}} catch (Exception ex) {("ip访问失败{}",ex);status =false;}return status;
}