import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
public class GetMACAddress {
public String getMACAddress(String ipAddress) { String str =
"", strMAC =
"", macAddress =
"";
try { Process pp = Runtime.getRuntime().exec(
"nbtstat -a " + ipAddress); InputStreamReader ir =
new InputStreamReader(pp.getInputStream()); LineNumberReader input =
new LineNumberReader(ir);
for (
int i =
1; i <
100; i++) { str = input.readLine();
if (str !=
null) {
if (str.indexOf(
"MAC Address") >
1) { strMAC = str.substring(str.indexOf(
"MAC Address") +
14, str.length());
break; } } } }
catch (IOException ex) {
return "Can't Get MAC Address!"; }
if (strMAC.length() <
17) {
return "Error!"; } macAddress = strMAC.substring(
0,
2) +
":" + strMAC.substring(
3,
5) +
":" + strMAC.substring(
6,
8) +
":" + strMAC.substring(
9,
11) +
":" + strMAC.substring(
12,
14) +
":" + strMAC.substring(
15,
17);
return macAddress; }
public static void main(String[] args) { GetMACAddress getMACAddress =
new GetMACAddress(); System.out.println(getMACAddress.getMACAddress(
"59.78.63.38")); }
public static String procAll(String str) {
return procStringEnd(procFirstMac(procAddress(str))); }
public static String procAddress(String str) {
int indexof = str.indexOf(
"Physical Address");
if (indexof >
0) {
return str.substring(indexof, str.length()); }
return str; }
public static String procFirstMac(String str) {
int indexof = str.indexOf(
":");
if (indexof >
0) {
return str.substring(indexof +
1, str.length()).trim(); }
return str; }
public static String procStringEnd(String str) {
int indexof = str.indexOf(
"/r");
if (indexof >
0) {
return str.substring(
0, indexof).trim(); }
return str; } }
只要写一个servlet来调用这个类的getMACAddress(String netip)方法就可以获得客户端的mac地址了，相信你会写jsp应该对servlet也不陌生吧，在jsp中调用servlet通过session传递返回的mac地址，加以判断就可以了
原文地址：http://hi.baidu.com/fatenumber/blog/item/583f930930dcc4ca3bc7638d.html
