检验通信主机是否在线

package com.npnets.readproperties;

import java.io.IOException;
import java.net.InetAddress;

public class Read {

    /**
     * 读取src 路径下的properties文件
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {
        /**
         * 检查主机是否在线
         */
        InetAddress address;
          try {
           address = InetAddress.getByName("192.168.0.33");//zq 192.168.0.114 
           System.out.println("Name: " + address.getHostName());
           System.out.println("Addr: " + address.getHostAddress());
           System.out.println("Reach: " + address.isReachable(3000)); // 是否能通信 返回true或false
           System.out.println(address.isReachable(3000)?0:1);
           System.out.println(address.toString());
          } catch (Exception e) {
           e.printStackTrace();
          }

    }

}