java - 如何通过模式获取物理地址？

Question

我想通过java中的模式识别来获取WiFi计算机的mac地址，但是这个putten给了我所有的mac地址(WIFI，以太网适配器......)可以帮助我只获取妻子的mac地址。

     public static  GetMac() {
            byte[] macB = null;
            byte[] bytesEncoded = null;
            try {
                String command = "ipconfig /all";
                Process p = Runtime.getRuntime().exec(command);
                BufferedReader inn = new BufferedReader(new InputStreamReader(
                        p.getInputStream()));               
                //I want get just  mac address 
                Pattern pattern = Pattern.compile(".*Physical Addres.*: (.*)");
                while (true) {
                    String line = inn.readLine();

                    if (line == null)
                        break;
                    Matcher mm = pattern.matcher(line);
                    if (mm.matches()) {
                        String macS = mm.group(1);
                        macB = macS.getBytes();
                        bytesEncoded = Base64.encodeBase64(macB);
                        break;
                    }
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }   
        }

Answer 1

最简单的事情就是扫描 ipconfig 结果，其中包含 mac id 的行前面是 ->“物理地址............: “在 mac id 之前“00-00-00-00-00-00”。查找索引 ":" 在该行中添加 1，然后将该索引减去文件长度即可得到 Mac

批量

@echo
off 
ipconfig /all 
pause
exit

java代码

 package test1;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 public class ProcessCommanLine {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ProcessCommanLine batchExecuteService = new ProcessCommanLine();
        ProcessCommanLine.run();
    }

    static void run() {
        // TODO Auto-generated method stub
        try {
            String cmds[] = {"D:\\test1.bat"};
            Runtime runtime = Runtime.getRuntime();
            Process process = runtime.exec(cmds);
            process.getOutputStream().close();
            InputStream inputStream = process.getInputStream();
            InputStreamReader inputstreamreader = new InputStreamReader(inputStream);
            BufferedReader bufferedrReader = new BufferedReader(inputstreamreader);
            String strLine = "";
            while ((strLine = bufferedrReader.readLine()) != null) {
               // System.out.println(strLine);
                String ph="Physical Address";
                String subtring=null;
                if(strLine.length()>ph.length())
                subtring=strLine.substring(3,ph.length()+3); 
               if(strLine.contains(ph))
               {    
                   int i=strLine.indexOf(":")+1;
                   System.out.println(strLine.substring(i, strLine.length()));

               }
            }
        } catch (IOException ioException) {
            ioException.printStackTrace();
        }
    }

}

输出