这个例子使用了J2SE5.0的ProcessBuilder类执行外部的程序,相对于 Runtime.exec ,它更方便,可以设置环境变量等。这里使用它在windows下读取物理网卡的地址
-
- package com.kuaff.jdk5package;
-
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.ArrayList;
- import java.util.List;
-
- public class ProcessBuilderShow
- {
- public static List<String> getPhysicalAddress()
- {
- Process p = null;
- //物理网卡列表
- List<String> address = new ArrayList<String>();
-
- try
- {
- //执行ipconfig /all命令
- p = new ProcessBuilder("ipconfig", "/all").start();
- }
- catch (IOException e)
- {
- return address;
- }
- byte[] b = new byte[1024];
- StringBuffer sb = new StringBuffer();
- //读取进程输出值
- InputStream in = p.getInputStream();
- try
- {
- while (in.read(b)>0)
- {
- sb.append(new String(b));
- }
- }
- catch (IOException e1)
- {
- }
- finally
- {
- try
- {
- in.close();
- }
- catch (IOException e2)
- {
- }
- }
- //以下分析输出值,得到物理网卡
- String rtValue = sb.substring(0);
- int i = rtValue.indexOf("Physical Address. . . . . . . . . :");
- while(i>0)
- {
- rtValue = rtValue.substring(i + "Physical Address. . . . . . . . . :".length());
- address.add(rtValue.substring(0,18));
- i = rtValue.indexOf("Physical Address. . . . . . . . . :");
- }
-
- return address;
-
- }
- public static void main(String[] args)
- {
- List<String> address = ProcessBuilderShow.getPhysicalAddress();
- for(String add:address)
- {
- System.out.printf("物理网卡地址:%s%n", add);
- }
- }
- }