zyflkj01
Random小白
采纳率100%
2018-05-25 07:42

java如何从http请求中获取mac(支持PC、手机)

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已采纳

在网上找了很多资料,大部分都比较坑,不是通过dos命令就是用nbtstat -A的方式,后来找到一个有残缺的,大概只能通过web获取
package com.wt.jwzh.common.utils;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

/**

  • @date 2018年5月22日 下午12:09:13 * */

public class UdpGetClientMacAddr {
private String sRemoteAddr;

private int iRemotePort=137;

private byte[] buffer = new byte[1024];

private DatagramSocket ds=null;

public UdpGetClientMacAddr(String strAddr) throws Exception{  
    sRemoteAddr = strAddr;  
    ds = new DatagramSocket();  
}  

public final DatagramPacket send(final byte[] bytes) throws IOException {  
    DatagramPacket dp = new DatagramPacket(bytes,bytes.length,InetAddress.getByName(sRemoteAddr),iRemotePort);  
    ds.send(dp);  
    return dp;  
}  

public final DatagramPacket receive() throws Exception {  
    DatagramPacket dp = new DatagramPacket(buffer,buffer.length);  
    ds.receive(dp);  
    return dp;  
}  
public byte[] GetQueryCmd() throws Exception {  
    byte[] t_ns = new byte[50];  
    t_ns[0] = 0x00;  
    t_ns[1] = 0x00;  
    t_ns[2] = 0x00;  
    t_ns[3] = 0x10;  
    t_ns[4] = 0x00;  
    t_ns[5] = 0x01;  
    t_ns[6] = 0x00;  
    t_ns[7] = 0x00;  
    t_ns[8] = 0x00;  
    t_ns[9] = 0x00;  
    t_ns[10] = 0x00;  
    t_ns[11] = 0x00;  
    t_ns[12] = 0x20;  
    t_ns[13] = 0x43;  
    t_ns[14] = 0x4B;  

    for(int i = 15; i < 45; i++){  
        t_ns[i] = 0x41;  
    }  
    t_ns[45] = 0x00;  
    t_ns[46] = 0x00;  
    t_ns[47] = 0x21;  
    t_ns[48] = 0x00;  
    t_ns[49] = 0x01;  
    return t_ns;  
}  
public final String GetMacAddr(byte[] brevdata) throws Exception {  
    // 获取计算机名  
    int i = brevdata[56] * 18 + 56;  
    String sAddr="";  
    StringBuffer sb = new StringBuffer(17);  
    // 先从第56字节位置,读出Number Of Names(NetBIOS名字的个数,其中每个NetBIOS Names Info部分占18个字节)  
    // 然后可计算出“Unit ID”字段的位置=56+Number Of Names×18,最后从该位置起连续读取6个字节,就是目的主机的MAC地址。  
    for(int j = 1; j < 7;j++)  
    {  
        sAddr = Integer.toHexString(0xFF & brevdata[i+j]);  
        if(sAddr.length() < 2)  
        {  
            sb.append(0);  
        }  
        sb.append(sAddr.toUpperCase());  
        if(j < 6) sb.append(':');  
    }  
    return sb.toString();  
}  

public final void close() throws Exception {  
    ds.close();  
}  

public final String GetRemoteMacAddr() throws Exception {  
    byte[] bqcmd = GetQueryCmd();  
    send(bqcmd);  
    DatagramPacket dp = receive();  
    String smac = GetMacAddr(dp.getData());  
    close();  
    return smac;  
}  

}
嗯,求正确的获取方式

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6条回答

  • huang2004091011 huang2004091011 3年前

    你这个是获取同一个局域网的mac,公网上是获取不到终端的mac的,除非通过web 插件本地获取再上传

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  • oyljerry oyljerry 3年前

    这个方法应该也只能获取到内网机器通信的mac地址,如果你web在公网,获取的mac不会是客户端的

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  • xcgh xcgh 3年前
  • m0_50911546 m0_50911546 4月前

    proc

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  • weixin_38652136 邪恶八进制 3年前

    首先要说的是:本方法可以支持外网机器的mac地址获取。

     import java.io.BufferedReader;
    import java.io.InputStreamReader;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    
    
    /**
    * 获取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 第一个命令 
       * @param another 第二个命令 
       * @return  第二个命令的执行结果 
       */
       public static String callCmd(String[] cmd,String[] another) { 
         String result = ""; 
         String line = ""; 
         try { 
           Runtime rt = Runtime.getRuntime(); 
           Process proc = rt.exec(cmd); 
           proc.waitFor(); //已经执行完第一个命令,准备执行第二个命令 
           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 目标ip,一般在局域网内 
       * @param sourceString 命令处理的结果字符串 
       * @param macSeparator mac分隔符号 
       * @return mac地址,用上面的分隔符号表示 
       */
       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; //如果有多个IP,只匹配本IP对应的Mac. 
           } 
         }
    
         return result; 
       }
    
    
    
       /** 
       * 
       * @param ip 目标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 目标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; 
       } 
    
       /**
       * 获取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;
       }
    
       //做个测试
       public static void main(String[] args) {      
         System.out.println(getMacAddress("220.181.111.148"));
       }
    
    }
    
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  • mahuzi mahuzi 3年前

    mac地址只有在局域网里才能获取到,过第三层交换机就获取不到了

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