JAVA获取MAC地址的方法

wjbjowuoyx

import java.io.BufferedReader;   
import java.io.IOException;   
import java.io.InputStreamReader;   
/**  
* 获取MAC地址  
* @author sunlightcs  
*  
*/  
public class GetMacAddress {   
/**   
*  获取当前操作系统名称.   
*  return 操作系统名称 例如:windows,Linux,Unix等.   
*/     
public static String getOSName() {     
return System.getProperty("os.name").toLowerCase();     
}     
/**   
* 获取Unix网卡的mac地址.   
* @return mac地址   
*/     
public static String getUnixMACAddress() {     
String mac = null;     
BufferedReader bufferedReader = null;     
Process process = null;     
try {     
/**  
*  Unix下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息   
*/  
process = Runtime.getRuntime().exec("ifconfig eth0");   
bufferedReader = new BufferedReader(new InputStreamReader(process     
.getInputStream()));     
String line = null;     
int index = -1;     
while ((line = bufferedReader.readLine()) != null) {     
/**  
*  寻找标示字符串[hwaddr]   
*/  
index = line.toLowerCase().indexOf("hwaddr");   
/**  
* 找到了  
*/  
if (index != -1) {     
/**  
*   取出mac地址并去除2边空格   
*/  
mac = line.substring(index +"hwaddr".length()+ 1).trim();   
break;     
}     
}     
} catch (IOException e) {     
e.printStackTrace();     
} finally {     
try {     
if (bufferedReader != null) {     
bufferedReader.close();     
}     
} catch (IOException e1) {     
e1.printStackTrace();     
}     
bufferedReader = null;     
process = null;     
}     
return mac;     
}     

/**   
* 获取Linux网卡的mac地址.   
* @return mac地址   
*/     
public static String getLinuxMACAddress() {     
String mac = null;     
BufferedReader bufferedReader = null;     
Process process = null;     
try {     
/**  
*  linux下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息   
*/  
process = Runtime.getRuntime().exec("ifconfig eth0");   
bufferedReader = new BufferedReader(new InputStreamReader(process     
.getInputStream()));     
String line = null;     
int index = -1;     
while ((line = bufferedReader.readLine()) != null) {     
index = line.toLowerCase().indexOf("硬件地址");   
/**  
* 找到了  
*/  
if (index != -1) {     
/**  
*   取出mac地址并去除2边空格   
*/  
mac = line.substring(index+4).trim();   
break;     
}     
}     
} catch (IOException e) {     
e.printStackTrace();     
} finally {     
try {     
if (bufferedReader != null) {     
bufferedReader.close();     
}     
} catch (IOException e1) {     
e1.printStackTrace();     
}     
bufferedReader = null;     
process = null;     
}   
return mac;     
}   
/**   
* 获取widnows网卡的mac地址.   
* @return mac地址   
*/     
public static String getWindowsMACAddress() {     
String mac = null;     
BufferedReader bufferedReader = null;     
Process process = null;     
try {     
/**  
* windows下的命令，显示信息中包含有mac地址信息   
*/  
process = Runtime.getRuntime().exec("ipconfig /all");   
bufferedReader = new BufferedReader(new InputStreamReader(process     
.getInputStream()));     
String line = null;     
int index = -1;     
while ((line = bufferedReader.readLine()) != null) {     
/**  
*  寻找标示字符串[physical address]   
*/  
index = line.toLowerCase().indexOf("physical address");   
if (index != -1) {   
index = line.indexOf(":");   
if (index != -1) {   
/**  
*   取出mac地址并去除2边空格  
*/  
mac = line.substring(index + 1).trim();   
}   
break;     
}   
}   
} catch (IOException e) {     
e.printStackTrace();     
}finally {     
try {     
if (bufferedReader != null) {     
bufferedReader.close();     
}     
}catch (IOException e1) {     
e1.printStackTrace();     
}     
bufferedReader = null;     
process = null;     
}     
return mac;     
}     
/**   
* 测试用的main方法.   
*   
* @param argc   
*            运行参数.   
*/     
public static void main(String[] argc) {     
String os = getOSName();     
System.out.println(os);     
if(os.startsWith("windows")){     
String mac = getWindowsMACAddress();     
System.out.println("本地是windows:"+mac);     
}else if(os.startsWith("linux")){     
String mac = getLinuxMACAddress();     
System.out.println("本地是Linux系统,MAC地址是:"+mac);   
}else{     
String mac = getUnixMACAddress();                        
System.out.println("本地是Unix系统 MAC地址是:"+mac);   
}     
}     
}