MacAddressAccess

记录下来，省得下次使用时还得查找。

import java.io.*;
public class MacAddressAccess {
    public MacAddressAccess() {
    }
    private static String getMyMac() {
        String s = "";
        try {
            String s1 = "ipconfig /all";
            // 相当于在命令行下直接使用ipconfig /all
            Process process = Runtime.getRuntime().exec(s1);
            BufferedReader bufferedreader = new BufferedReader(new
                       InputStreamReader(process.getInputStream()));
            String line = bufferedreader.readLine();
            // 筛选出mac地址
            for(;line != null;) {
                String nextLine = bufferedreader.readLine();
                if(line.indexOf("Physical Address") > 0){
                    int i = line.indexOf("Physical Address") + 36;
                    s = line.substring(i);
                    break;
                }
                line = nextLine;
            }
            bufferedreader.close();
            process.waitFor();
        } catch(Exception exception) {
            s = "";
        }
        return s.trim();
    }
    public static void main(String[] args){
        // 显示Mac地址在命令行界面
        System.out.println(MacAddressAccess.getMyMac());
    }
}