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java 獲取用戶的MAC地址多種方法實(shí)例詳解

更新時(shí)間：2017年04月19日 17:25:44 投稿：wbb

這篇文章主要介紹了JAVA實(shí)現(xiàn)獲取用戶的MAC地址的多種方法實(shí)例，需要的朋友可以參考下

java實(shí)現(xiàn)獲取用戶的MAC地址方法：

方法一：將本機(jī)地址與局域網(wǎng)內(nèi)其他機(jī)器區(qū)分開(kāi)來(lái)

/**
  * 根據(jù)IP地址獲取mac地址
  * @param ipAddress 127.0.0.1
  * @return
  * @throws SocketException
  * @throws UnknownHostException
  */
 public static String getLocalMac(String ipAddress) throws SocketException,
   UnknownHostException {
  // TODO Auto-generated method stub
  String str = "";
  String macAddress = "";
  final String LOOPBACK_ADDRESS = "127.0.0.1";
  // 如果為127.0.0.1,則獲取本地MAC地址。
  if (LOOPBACK_ADDRESS.equals(ipAddress)) {
   InetAddress inetAddress = InetAddress.getLocalHost();
   // 貌似此方法需要JDK1.6。
   byte[] mac = NetworkInterface.getByInetAddress(inetAddress)
     .getHardwareAddress();
   // 下面代碼是把mac地址拼裝成String
   StringBuilder sb = new StringBuilder();
   for (int i = 0; i < mac.length; i++) {
    if (i != 0) {
     sb.append("-");
    }
    // mac[i] & 0xFF 是為了把byte轉(zhuǎn)化為正整數(shù)
    String s = Integer.toHexString(mac[i] & 0xFF);
    sb.append(s.length() == 1 ? 0 + s : s);
   }
   // 把字符串所有小寫(xiě)字母改為大寫(xiě)成為正規(guī)的mac地址并返回
   macAddress = sb.toString().trim().toUpperCase();
   return macAddress;
  } else {
   // 獲取非本地IP的MAC地址
   try {
    System.out.println(ipAddress);
    Process p = Runtime.getRuntime()
      .exec("nbtstat -A " + ipAddress);
    System.out.println("===process=="+p);
    InputStreamReader ir = new InputStreamReader(p.getInputStream());      
    BufferedReader br = new BufferedReader(ir);    
    while ((str = br.readLine()) != null) {
     if(str.indexOf("MAC")>1){
      macAddress = str.substring(str.indexOf("MAC")+9, str.length());
      macAddress = macAddress.trim();
      System.out.println("macAddress:" + macAddress);
      break;
     }
    }
    p.destroy();
    br.close();
    ir.close();
   } catch (IOException ex) {
   }
   return macAddress;
  }
 }

我們?cè)賮?lái)看下方法二：

package com.alpha.test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader; 
public class GetMac { 
  /**
   * java獲取客戶端網(wǎng)卡的MAC地址
   * 
   * @param args
   */
  public static void main(String[] args) {
    GetMac get = new GetMac();
    System.out.println("1="+get.getMAC());
    System.out.println("2="+get.getMAC("127.0.0.1"));
  } 
  // 1.獲取客戶端ip地址( 這個(gè)必須從客戶端傳到后臺(tái))：
  // jsp頁(yè)面下，很簡(jiǎn)單，request.getRemoteAddr() ;
  // 因?yàn)橄到y(tǒng)的VIew層是用JSF來(lái)實(shí)現(xiàn)的，因此頁(yè)面上沒(méi)法直接獲得類似request，在bean里做了個(gè)強(qiáng)制轉(zhuǎn)換 
  // public String getMyIP() {
  // try {
  // FacesContext fc = FacesContext.getCurrentInstance();
  // HttpServletRequest request = (HttpServletRequest) fc
  // .getExternalContext().getRequest();
  // return request.getRemoteAddr();
  // } catch (Exception e) {
  // e.printStackTrace();
  // }
  // return "";
  // } 
  // 2.獲取客戶端mac地址
  // 調(diào)用window的命令，在后臺(tái)Bean里實(shí)現(xiàn) 通過(guò)ip來(lái)獲取mac地址。方法如下：
  // 運(yùn)行速度【快】
  public String getMAC() {
    String mac = null;
    try {
      Process pro = Runtime.getRuntime().exec("cmd.exe /c ipconfig/all"); 
      InputStream is = pro.getInputStream();
      BufferedReader br = new BufferedReader(new InputStreamReader(is));
      String message = br.readLine(); 
      int index = -1;
      while (message != null) {
        if ((index = message.indexOf("Physical Address")) > 0) {
          mac = message.substring(index + 36).trim();
          break;
        }
        message = br.readLine();
      }
      System.out.println(mac);
      br.close();
      pro.destroy();
    } catch (IOException e) {
      System.out.println("Can't get mac address!");
      return null;
    }
    return mac;
  }
  // 運(yùn)行速度【慢】
  public String getMAC(String ip) {
    String str = null;
    String macAddress = null;
    try {
      Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
      InputStreamReader ir = new InputStreamReader(p.getInputStream());
      LineNumberReader input = new LineNumberReader(ir);
      for (; true;) {
        str = input.readLine();
        if (str != null) {
          if (str.indexOf("MAC Address") > 1) {
            macAddress = str
                .substring(str.indexOf("MAC Address") + 14);
            break;
          }
        }
      }
    } catch (IOException e) {
      e.printStackTrace(System.out);
      return null;
    }
    return macAddress;
  }
}

方法三，更精簡(jiǎn)一些：

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
public class MACAddress {
 String ip;
 String mac;
 public MACAddress (String ip){
 this.ip = ip;
 }
 public MACAddress (){
 this.ip = "0.0.0.0";
 }
 public String getMac(){
 try {
 Process p = Runtime.getRuntime().exec("arp -n");
  InputStreamReader ir = new InputStreamReader(p.getInputStream());
  LineNumberReader input = new LineNumberReader(ir);
  p.waitFor();
  boolean flag = true;
  String ipStr = "(" + this.ip + ")";
  while(flag) {
  String str = input.readLine();
  if (str != null) {
   if (str.indexOf(ipStr) > 1) {
   int temp = str.indexOf("at");
   this.mac = str.substring(
   temp + 3, temp + 20);
   break;
   }
  } else
  flag = false;
  }
 } catch (IOException | InterruptedException e) {
  e.printStackTrace(System.out);
 }
 return this.mac;
 }
 public void setIp(String ip){
 this.ip = ip;
 }
}

最后要放大招了，小伙伴們看仔細(xì)哦

首先要說(shuō)的是：本方法可以支持外網(wǎng)機(jī)器的mac地址獲取。

以前弄了一個(gè)只能訪問(wèn)局域網(wǎng)。有防火墻就訪問(wèn)不了，但是這個(gè)不用擔(dān)心了。

測(cè)試了百度的ip，已經(jīng)可以獲得mac地址

java通過(guò)ip獲取mac地址-封ip封mac地址

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern; 
/**
* 獲取MAC地址
* @author
* 2011-12
*/
public class GetMacAddress {
  public static String callCmd(String[] cmd) { 
   String result = ""; 
   String line = ""; 
   try { 
    Process proc = Runtime.getRuntime().exec(cmd); 
    InputStreamReader is = new InputStreamReader(proc.getInputStream()); 
    BufferedReader br = new BufferedReader (is); 
    while ((line = br.readLine ()) != null) { 
    result += line; 
    } 
   } 
   catch(Exception e) { 
    e.printStackTrace(); 
   } 
   return result; 
  }
  /** 
  * 
  * @param cmd 第一個(gè)命令 
  * @param another 第二個(gè)命令 
  * @return 第二個(gè)命令的執(zhí)行結(jié)果 
  */
  public static String callCmd(String[] cmd,String[] another) { 
   String result = ""; 
   String line = ""; 
   try { 
    Runtime rt = Runtime.getRuntime(); 
    Process proc = rt.exec(cmd); 
    proc.waitFor(); //已經(jīng)執(zhí)行完第一個(gè)命令，準(zhǔn)備執(zhí)行第二個(gè)命令 
    proc = rt.exec(another); 
    InputStreamReader is = new InputStreamReader(proc.getInputStream()); 
    BufferedReader br = new BufferedReader (is); 
    while ((line = br.readLine ()) != null) { 
     result += line; 
    } 
   } 
   catch(Exception e) { 
    e.printStackTrace(); 
   } 
   return result; 
  }
  /** 
  * 
  * @param ip 目標(biāo)ip,一般在局域網(wǎng)內(nèi) 
  * @param sourceString 命令處理的結(jié)果字符串 
  * @param macSeparator mac分隔符號(hào) 
  * @return mac地址，用上面的分隔符號(hào)表示 
  */
  public static String filterMacAddress(final String ip, final String sourceString,final String macSeparator) { 
   String result = ""; 
   String regExp = "((([0-9,A-F,a-f]{1,2}" + macSeparator + "){1,5})[0-9,A-F,a-f]{1,2})"; 
   Pattern pattern = Pattern.compile(regExp); 
   Matcher matcher = pattern.matcher(sourceString); 
   while(matcher.find()){ 
    result = matcher.group(1); 
    if(sourceString.indexOf(ip) <= sourceString.lastIndexOf(matcher.group(1))) { 
     break; //如果有多個(gè)IP,只匹配本IP對(duì)應(yīng)的Mac. 
    } 
   }  
   return result; 
  }   
  /** 
  * 
  * @param ip 目標(biāo)ip 
  * @return Mac Address 
  * 
  */
  public static String getMacInWindows(final String ip){ 
   String result = ""; 
   String[] cmd = { 
     "cmd", 
     "/c", 
     "ping " + ip 
     }; 
   String[] another = { 
     "cmd", 
     "/c", 
     "arp -a"
     }; 
   String cmdResult = callCmd(cmd,another); 
   result = filterMacAddress(ip,cmdResult,"-"); 
   return result; 
  }  
  /** 
  * @param ip 目標(biāo)ip 
  * @return Mac Address 
  * 
  */
  public static String getMacInLinux(final String ip){ 
   String result = ""; 
   String[] cmd = { 
     "/bin/sh", 
     "-c", 
     "ping " + ip + " -c 2 && arp -a"
     }; 
   String cmdResult = callCmd(cmd); 
   result = filterMacAddress(ip,cmdResult,":"); 
   return result; 
  }  
  /**
  * 獲取MAC地址 
  * @return 返回MAC地址
  */
  public static String getMacAddress(String ip){
   String macAddress = "";
   macAddress = getMacInWindows(ip).trim();
   if(macAddress==null||"".equals(macAddress)){
    macAddress = getMacInLinux(ip).trim();
   }
   return macAddress;
  }
  //做個(gè)測(cè)試
  public static void main(String[] args) {   
   System.out.println(getMacAddress("220.181.111.148"));
  }
 }

希望本篇文章可以給您幫助

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