Java调用ping命令_JAVA_编程开发_程序员俱乐部

class="java" name="code">package cn.com.songjy;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Ping {

	public static void main(String[] args) throws IOException {
		System.out.println(ping("127.0.0.1", 1));
		System.out.println("************************************");
		System.out.println(ping("www.baidu.com", 35));
	}

	/**
	 * 
	 * @param target_name
	 *            IP地址或域名
	 * @param out_time
	 *            超时间隔，单位为毫秒
	 * @return
	 * @throws IOException
	 */
	public static boolean ping(String target_name, int out_time)
			throws IOException {

		Runtime runtime = Runtime.getRuntime();

		String ping_command = "ping " + target_name + " -w " + out_time;

		System.out.println("命令格式：" + ping_command);

		Process process = runtime.exec(ping_command);

		if (null == process)
			return false;

		BufferedReader bufferedReader = new BufferedReader(
				new InputStreamReader(process.getInputStream(), "GBK"));// windows下编码默认是GBK，Linux是UTF-8

		String line = null;

		while (null != (line = bufferedReader.readLine())) {

			System.out.println(line);

			if (line.startsWith("Reply from"))
				return true;
			if (line.startsWith("来自"))
				return true;
		}
		
		bufferedReader.close();

		return false;
	}

}
/* 这里只是简单检测是否能通，如果还需要更详细信息可查看ping命令的介绍 */

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