使用JAVA获取客户端MAC地址

//Java获得CPU序列号和网卡Mac地址

/*
利用Runtime call操作系统的命令,具体的命令取决于不同的操作系统,注意不要调用Runtime.getRuntime().exec(String)接口,要用Runtime.getRuntime().exec(String[])这个接口,不然复杂命令的执行会有问题。例子如下(拿cpu个数,其他类似):
定义命令:
WindowsCmd =”cmd.exe /c echo %NUMBER_OF_PROCESSORS%”;//windows的特殊
SolarisCmd = {“/bin/sh”, “-c”, “/usr/sbin/psrinfo | wc -l”};
AIXCmd = {“/bin/sh”, “-c”, “/usr/sbin/lsdev -Cc processor | wc -l”};
HPUXCmd = {“/bin/sh”, “-c”, “echo “map” | /usr/sbin/cstm | grep CPU | wc -l “};
LinuxCmd = {“/bin/sh”, “-c”, “cat /proc/cpuinfo | grep ^process | wc -l”};

然后判断系统:
os = System.getProperty(“os.name”).toLowerCase();

根据不同的操作系统call不同的命令。
*/
import java.io.IOException;
import java.io.InputStream;
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("172.18.8.225")); try { java.lang.Process proc = Runtime.getRuntime().exec("ipconfig /all"); InputStream istr = proc.getInputStream(); byte[] data = new byte[1024]; istr.read(data); String netdata = new String(data); System.out.println("Your Mac Address=" + procAll(netdata)); } catch(IOException e) { System.out.println("error=" + e); } } 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;
}
}

import java.util.Vector;

class GetNetMAC
{
//网卡物理地址长度
static private final int _physicalLength = 16;

public static void main(String[] args)
{
//output you computer phycail ip address
System.out.println(“The MAC Addressis:t” + getPhysicalAddress());
}

static public String getPhysicalAddress()
{
GetNetMACShell shell = new GetNetMACShell();
String cmd = “cmd.exe /c ipconfig/all”;
Vector result;
result = shell.execute(cmd);
return parseCmd(result.toString());
}

//从字符串中解析出所需要获得的字符串
static private String parseCmd(String s)
{
String find = “Physical Address. . . . . . . . . :”;
int findIndex = s.indexOf(find);
if(findIndex == -1)
{
return “not find”;
}
else
{
return s.substring(findIndex + find.length() + 1,findIndex + find.length() + 1 + _physicalLength);
}
}
}

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