Java获取物理网卡

 import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.HashSet;public class ProcessBuilderShow {    public static HashSet<String> getPhysicalAddress(String text) throws IOException {        Process p = null;        // 物理网卡列表        HashSet<String> address = new HashSet<String>();        // 执行ipconfig /all命令        p = new ProcessBuilder("ipconfig", "/all").start();        // 读取进程输出值        InputStream in = p.getInputStream();        BufferedReader br = new BufferedReader(new InputStreamReader(in));        String temp = null;        while ((temp = br.readLine()) != null) {            System.out.println(temp);            int idx = temp.indexOf(text);            if (idx > 0) {                address.add(temp.substring(text.length()+4,temp.length()));            }        }                return address;    }        public static void main(String[] args) {        String[] texts = new String[]{"Physical Address. . . . . . . . . :","物理地址. . . . . . . . . . . . . :"};        HashSet<String> address;        try {            address = ProcessBuilderShow.getPhysicalAddress(texts[0]);            if (address == null || address.size() == 0) {                address = ProcessBuilderShow.getPhysicalAddress(texts[1]);                            }            System.out.println("物理地址列表：");            for (String add : address) {                System.out.println(add);            }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }            }}