如何使用Java 5获取主机mac地址？

Question

我知道你可以用Java 6做到这一点，使用java.net.NetworkInterface->getHardwareAddress()。但我部署的环境仅限于Java 5.

有没有人知道如何在Java 5或更早版本中执行此操作？非常感谢。

Answer 1

Java 5中的标准方式是启动本机进程来运行ipconfig或ifconfig并解析OutputStream以获得答案。

例如：

private String getMacAddress() throws IOException { 
    String command = “ipconfig /all”; 
    Process pid = Runtime.getRuntime().exec(command); 
    BufferedReader in = new BufferedReader(new InputStreamReader(pid.getInputStream())); 
    Pattern p = Pattern.compile(”.*Physical Address.*: (.*)”); 
    while (true) { 
     String line = in.readLine(); 
     if (line == null) 
      break; 
     Matcher m = p.matcher(line); 
     if (m.matches()) { 
      return m.group(1); 
     } 
    } 
} 

Answer 2

据我知道有没有纯Java的前6的解决方案。 UUID解决了这个问题，但是首先找到它是否应该运行ifconfig或ipconfig。

Answer 3

Butterchicken的解决方案是可以的，但只适用于英文版的Windows。

一个稍微好一些（独立于语言）的解决方案将匹配MAC地址的模式。在这里，我还要确保该地址有关联的IP（例如过滤掉的蓝牙设备）：

public String obtainMacAddress() 
throws Exception { 
    Process aProc = Runtime.getRuntime().exec("ipconfig /all"); 
    InputStream procOut = new DataInputStream(aProc.getInputStream()); 
    BufferedReader br = new BufferedReader(new InputStreamReader(procOut)); 

    String aMacAddress = "((\\p{XDigit}\\p{XDigit}-){5}\\p{XDigit}\\p{XDigit})"; 
    Pattern aPatternMac = Pattern.compile(aMacAddress); 
    String aIpAddress = ".*IP.*: (([0-9]*\\.){3}[0-9]).*$"; 
    Pattern aPatternIp = Pattern.compile(aIpAddress); 
    String aNewAdaptor = "[A-Z].*$"; 
    Pattern aPatternNewAdaptor = Pattern.compile(aNewAdaptor); 

    // locate first MAC address that has IP address 
    boolean zFoundMac = false; 
    boolean zFoundIp = false; 
    String foundMac = null; 
    String theGoodMac = null; 

    String strLine; 
    while (((strLine = br.readLine()) != null) && !(zFoundIp && zFoundMac)) { 
     Matcher aMatcherNewAdaptor = aPatternNewAdaptor.matcher(strLine); 
     if (aMatcherNewAdaptor.matches()) { 
      zFoundMac = zFoundIp = false; 
     } 
     Matcher aMatcherMac = aPatternMac.matcher(strLine); 
     if (aMatcherMac.find()) { 
      foundMac = aMatcherMac.group(0); 
      zFoundMac = true; 
     } 
     Matcher aMatcherIp = aPatternIp.matcher(strLine); 
     if (aMatcherIp.matches()) { 
      zFoundIp = true; 
      if(zFoundMac && (theGoodMac == null)) theGoodMac = foundMac; 
     } 
    } 

    aProc.destroy(); 
    aProc.waitFor(); 

    return theGoodMac; 
} 

Answer 4

在Linux和Mac OS X光机，你可能需要使用ifconfig -a。
ipconfig是windows命令。