获取客户机的ip和mac地址

只获取clientIP

 1 package com.ppms.utils;
 2 
 3 import javax.servlet.http.HttpServletRequest;
 4 
 5 /**
 6  * Created by liangyadong on 2018/9/6 0006.
 7  */
 8 public class GetClientIPUtil {
 9     
10     public static String getIpAddr(HttpServletRequest request){
11         String ip = request.getHeader("X-Forwarded-For");
12         if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
13             ip = request.getHeader("Proxy-Client-IP");
14         } if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
15             ip = request.getHeader("WL-Proxy-Client-IP");
16         } if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
17             ip = request.getHeader("HTTP-CLIENT-IP");
18         } if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
19             ip = request.getHeader("HTTP_X_FORWARDED_FOR");
20         } if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)){
21             ip = request.getRemoteAddr();
22         }
23         return ip;
24     }
25 }

================================================我是分割线.==================================================

获取ip和mac地址:

jsp:

<%@ page import="com.ppms.utils.UdpGetClientMacAddr" %>
<%
    String macAddress = "";
    String sip = request.getHeader("x-forwarded-for");
    if(sip == null || sip.length() == 0 || "unknown".equalsIgnoreCase(sip)) {
        sip = request.getHeader("Proxy-Client-IP");
    }
    if(sip == null || sip.length() == 0 || "unknown".equalsIgnoreCase(sip)) {
        sip = request.getHeader("WL-Proxy-Client-IP");
    }
    if(sip == null || sip.length() == 0 || "unknown".equalsIgnoreCase(sip)) {
        sip = request.getRemoteAddr();
    }
    UdpGetClientMacAddr umac = new UdpGetClientMacAddr(sip);
    macAddress = umac.GetRemoteMacAddr();
%>
<input id="mac" type="hidden" value="<%=macAddress%>">

java:

  1 package com.ppms.utils;
  2 
  3 import java.io.IOException;
  4 import java.io.InputStreamReader;
  5 import java.io.LineNumberReader;
  6 import java.net.DatagramPacket;
  7 import java.net.DatagramSocket;
  8 import java.net.InetAddress;
  9 
 10 /**
 11  * Created by liangyadong on 2018/8/6 0006.
 12  */
 13 public class UdpGetClientMacAddr {
 14     private String sRemoteAddr;
 15     private int iRemotePort=137;
 16     private byte[] buffer = new byte[1024];
 17     private DatagramSocket ds=null;
 18 
 19     public UdpGetClientMacAddr(String strAddr) throws Exception{
 20         sRemoteAddr = strAddr;
 21         ds = new DatagramSocket();
 22     }
 23 
 24     protected final DatagramPacket send(final byte[] bytes) throws IOException {
 25         DatagramPacket dp = new DatagramPacket(bytes,bytes.length, InetAddress.getByName(sRemoteAddr),iRemotePort);
 26         ds.send(dp);
 27         return dp;
 28     }
 29 
 30     protected final DatagramPacket receive() throws Exception {
 31         DatagramPacket dp = new DatagramPacket(buffer,buffer.length);
 32         ds.receive(dp);
 33         return dp;
 34     }
 35     // 询问包结构:
 36     // Transaction ID 两字节（16位） 0x00 0x00
 37     // Flags 两字节（16位） 0x00 0x10
 38     // Questions 两字节（16位） 0x00 0x01
 39     // AnswerRRs 两字节（16位） 0x00 0x00
 40     // AuthorityRRs 两字节（16位） 0x00 0x00
 41     // AdditionalRRs 两字节（16位） 0x00 0x00
 42     // Name:array [1..34] 0x20 0x43 0x4B 0x41(30个) 0x00 ;
 43     // Type:NBSTAT 两字节 0x00 0x21
 44     // Class:INET 两字节（16位）0x00 0x01
 45     protected byte[] GetQueryCmd() throws Exception {
 46         byte[] t_ns = new byte[50];
 47         t_ns[0] = 0x00;
 48         t_ns[1] = 0x00;
 49         t_ns[2] = 0x00;
 50         t_ns[3] = 0x10;
 51         t_ns[4] = 0x00;
 52         t_ns[5] = 0x01;
 53         t_ns[6] = 0x00;
 54         t_ns[7] = 0x00;
 55         t_ns[8] = 0x00;
 56         t_ns[9] = 0x00;
 57         t_ns[10] = 0x00;
 58         t_ns[11] = 0x00;
 59         t_ns[12] = 0x20;
 60         t_ns[13] = 0x43;
 61         t_ns[14] = 0x4B;
 62 
 63         for(int i = 15; i < 45; i++)
 64         {
 65             t_ns[i] = 0x41;
 66         }
 67 
 68         t_ns[45] = 0x00;
 69         t_ns[46] = 0x00;
 70         t_ns[47] = 0x21;
 71         t_ns[48] = 0x00;
 72         t_ns[49] = 0x01;
 73         return t_ns;
 74     }
 75     // 表1 “UDP－NetBIOS－NS”应答包的结构及主要字段一览表
 76     // 序号 字段名 长度
 77     // 1 Transaction ID 两字节（16位）
 78     // 2 Flags 两字节（16位）
 79     // 3 Questions 两字节（16位）
 80     // 4 AnswerRRs 两字节（16位）
 81     // 5 AuthorityRRs 两字节（16位）
 82     // 6 AdditionalRRs 两字节（16位）
 83     // 7 Name<Workstation/Redirector> 34字节（272位）
 84     // 8 Type:NBSTAT 两字节（16位）
 85     // 9 Class:INET 两字节（16位）
 86     // 10 Time To Live 四字节（32位）
 87     // 11 Length 两字节（16位）
 88     // 12 Number of name 一个字节（8位）
 89     // NetBIOS Name Info 18×Number Of Name字节
 90     // Unit ID 6字节（48位
 91     protected final String GetMacAddr(byte[] brevdata) throws Exception {
 92         // 获取计算机名
 93         int i = brevdata[56] * 18 + 56;
 94         String sAddr="";
 95         StringBuffer sb = new StringBuffer(17);
 96         // 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）
 97         // 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。
 98         for(int j = 1; j < 7;j++)
 99         {
100             sAddr = Integer.toHexString(0xFF & brevdata[i+j]);
101             if(sAddr.length() < 2)
102             {
103                 sb.append(0);
104             }
105             sb.append(sAddr.toUpperCase());
106 //            if(j < 6) sb.append(':');//用:分隔
107             if(j < 6) sb.append('-');//用-分隔
108         }
109         return sb.toString();
110     }
111 
112     public final void close() {
113         try
114         {
115             ds.close();
116         }
117         catch (Exception ex){
118             ex.printStackTrace();
119         }
120     }
121 
122     public final String GetRemoteMacAddr() throws Exception {
123         byte[] bqcmd = GetQueryCmd();
124         send(bqcmd);
125         DatagramPacket dp = receive();
126         String smac = GetMacAddr(dp.getData());
127         close();
128 
129         return smac;
130     }
131 
132     public String getMACAddress(String ip){
133         String str = "";
134         String macAddress = "";
135         try {
136             Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
137             InputStreamReader ir = new InputStreamReader(p.getInputStream());
138             LineNumberReader input = new LineNumberReader(ir);
139             for (int i = 1; i < 100; i++) {
140                 str = input.readLine();
141                 if (str != null) {
142                     if (str.indexOf("MAC Address") > 1) {
143                         macAddress = str.substring(str.indexOf("MAC Address") + 14, str.length());
144                         break;
145                     }
146                 }
147             }
148         } catch (IOException e) {
149             e.printStackTrace(System.out);
150         }
151         return macAddress;
152     }
153 
154 }

注意106和107两行的注释.