java方法执行控制台命令工具类

package com.yanek.util;import java.io.IOException;import java.io.InputStreamReader;import java.io.LineNumberReader;public class Tool {/** * @param args */public static void main(String[] args) {System.out.println(executeCommond("ipconfig"));}     /**      *  java方法执行控制台命令,返回执行的输入结果      * @param cmd      * @return      */public static String executeCommond(String cmd) {String ret = "";try {Process p = Runtime.getRuntime().exec(cmd);InputStreamReader ins = new InputStreamReader(p.getInputStream());LineNumberReader input = new LineNumberReader(ins);String line;while ((line = input.readLine()) != null) {System.out.println(line);ret += line + "<br>";}} catch (IOException e) {e.printStackTrace();}return ret;}}