运行命令" cmd ipconfig /all"就会出现以下结果
Physical Address. . . . . . . . . : 20-CF-30-9A-60-EE
。
java就能过这样的命令来获取。以下是示例。
import java.io.BufferedReader
import java.io.IOException
import java.io.InputStreamReader
public class TestMac
{
public static void main(String[] args) {
System.out.println("Operation System=" + getOsName())
System.out.println("Mac Address=" + getMACAddress())
System.out.println("通过ip获取mac"+getMACAddress("192.168.1.101"))
}
public static String getOsName() {
String os = ""
os = System.getProperty("os.name")
return os
}
public static String getMACAddress() {
String address = ""
String os = getOsName()
if (os.startsWith("Windows")) {
try {
String command = "cmd.exe /c ipconfig /all"
Process p = Runtime.getRuntime().exec(command)
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()))
String line
while ((line = br.readLine()) != null) {
if (line.indexOf("Physical Address") >0) {
int index = line.indexOf(":")
index += 2
address = line.substring(index)
break
}
}
br.close()
return address.trim()
} catch (IOException e) {
}
} else if (os.startsWith("Linux")) {
String command = "/bin/sh -c ifconfig -a"
Process p
try {
p = Runtime.getRuntime().exec(command)
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()))
String line
while ((line = br.readLine()) != null) {
if (line.indexOf("HWaddr") >0) {
int index = line.indexOf("HWaddr") + "HWaddr".length()
address = line.substring(index)
break
}
}
br.close()
} catch (IOException e) {
}
}
address = address.trim()
return address
}
public static 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 = 1i <100i++) {
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
}
}
剑天梦的回答原理和我这个一样，都是通过Process 执行命令。 我直接补充到答案里了。不过
我这边运行那个命令出来的结果很多，那么花的时间就长了。优点是能够获取别人的mac地址 。
import java.net.*public class NetInfo {
public static void main(String[] args) {
new NetInfo().say()
}
public void say() {
try {
InetAddress i = InetAddress.getLocalHost()
System.out.println(i) //计算机名称和ip
System.out.println(i.getHostName()) //名称
System.out.println(i.getHostAddress())//只获得ip
}
catch(Exception e){e.printStackTrace()}
}
}
