java 访问远程主机MAC地址

1.通过主机名称获取MAC地址

    /**
     * 获取操作系统名称
     */ 
    public static String getOsName() { 
        String os = ""; 
        os = System.getProperty("os.name"); 
        return os; 
    }

/**
     * 获取MAC地址
     */ 
    public static String getMACAddress() { 
        String address = ""; 
        String os = getOsName(); 
        //根据操作系统类型获取MAC地址 
        if (os.startsWith("Windows")) { 
            try { 
                String command = "cmd.exe /c ipconfig /all"; 
                Process p = Runtime.getRuntime().exec(command); 
                BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream())); 
                String line; 
                while ((line = br.readLine()) != null) { 
                    if (line.indexOf("Physical Address") > 0) { 
                        int index = line.indexOf(":"); 
                        index += 2; 
                        address = line.substring(index); 
                        break; 
                    } 
                } 
                br.close(); 
                return address.trim(); 
            } catch (IOException e) { 
            } 
        } else if (os.startsWith("Linux")) { 
            String command = "/bin/sh -c ifconfig -a"; 
            Process p; 
            try { 
                p = Runtime.getRuntime().exec(command); 
                BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream())); 
                String line; 
                while ((line = br.readLine()) != null) { 
                    if (line.indexOf("HWaddr") > 0) { 
                        int index = line.indexOf("HWaddr") + "HWaddr".length(); 
                        address = line.substring(index); 
                        break; 
                    } 
                } 
                br.close(); 
            } catch (IOException e) { 
            } 
        } 
        address = address.trim(); 
        return address; 
    }  

2.通过远程主机IP地址获取MAC地址

    /**
     * 获取远程MAC地址
     * @return
     */
    public static String getRemoteMac(){
        HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
        return getRemoteMac(request);       
    }
   
    /**
     * 获取远程MAC地址
     * @param request
     * @return
     */
    public static String getRemoteMac(HttpServletRequest request){
        String ip =  request.getRemoteAddr();
        return getMACAddress(ip);
    }

    /**
     * 通过远程IP获取MAC地址
     * @param ip 远程IP地址
     * @return
     */
    public static String getMACAddress(String ip) {
        String str = "";
        String macAddress = "";
        try {
            Process p = Runtime.getRuntime().exec("nbtstat -a " + ip);
            InputStreamReader ir = new InputStreamReader(p.getInputStream(),"GBK");
            LineNumberReader input = new LineNumberReader(ir);
            for (int i = 1; i < 100; i++) {
                str = input.readLine();
                logger.info("nbtstat -a " + ip +"\n mac info:"+str);
                if (str != null) {
                    if (str.indexOf("MAC 地址",1) > -1) {
                        // 客户端使用的是中文版操作系统
                        macAddress = str.substring(str.indexOf("MAC 地址") + 9,
                                str.length());
                        break;
                    } else if (str.indexOf("MAC Address",1) > -1) {
                        // 客户端使用的是英文版操作系统
                        macAddress = str.substring(
                                str.indexOf("MAC Address") + 14, str.length());
                        break;
                    }
                }else{
                    logger.error("执行 nbtstat -a " + ip + "指令执行失败");
                }
            }
        } catch (IOException e) {
            logger.error("=========获取远程mac地址异常=======IOException：", e);
        }
        return macAddress;
    }