如何获取IP地址对应的MAC地址

[luzhiqin]

小弟看到网络编程部分..发现只有获取套接字(即获取端口号跟IP地址)但是却没有获取MAC地址的方法..求指教!

[caibird1024]

有能获取远程的吗

[luzhiqin]

[Quote=引用 10 楼 hy158753228 的回复:]
Java code
package csdn.impulsehu.may;

import java.net.InetAddress;
import java.net.NetworkInterface;

public class MacAddressTest {
public static void main(String[] args) {
System……
[/Quote

getHardwareAddress()is undefined

[huntor]

[Quote=引用 12 楼 luzhiqin 的回复:]

getHardwareAddress()is undefined
[/Quote]
java -version
java version "1.6.0_25"
Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
Java HotSpot(TM) Client VM (build 20.0-b11, mixed mode, sharing)

javap java.net.NetworkInterface | grep getH
public byte[] getHardwareAddress() throws java.net.SocketException;

[luzhiqin]

[Quote=引用 13 楼 huntor 的回复:]
引用 12 楼 luzhiqin 的回复:

getHardwareAddress()is undefined

java -version
java version "1.6.0_25"
Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
Java HotSpot(TM) Client VM (build 20.0-b11, m……
[/Quote]
不懂

[qybao]

就是让你查看一下你的jdk版本
执行一下
java -version
命令，看看版本是什么？
执行
javap java.net.NetworkInterface | grep getH
查看是否有getHardwareAddress方法
windows系统的话执行
javap java.net.NetworkInterface | findstr getH

[xiao_cs]

上面贴了好多代码哦 帮顶一个

[caoze]

mac地址只能在本机运行得到．

远程得到，需要获得其他命令的输出，这不是tcpip层能解决．

有些mac不太准，所以还是用ip就得了．

[lord_is_layuping]

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;

/**
 * @ClassName: MacAddress
 * @Description: 
 * @author LiangO
 * @date 2011-05-25 16:41:51
 * 
 */
public class MacAddress {

	/**
	 * @Title: getMacAddress
	 * @Description: TODO(这里用一句话描述这个方法的作用)
	 * @param @param string
	 * @param @return    设定文件
	 * @return char[]    返回类型
	 * @throws
	 */
	private static String getMacAddress(String ip) {
		String str = "";
		String macAddress = "";
		try {
			Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
			InputStreamReader ir = new InputStreamReader(p.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) {
						macAddress = str.substring(
								str.indexOf("MAC Address") + 14, str.length());
						break;
					}
				}
			}
		} catch (IOException e) {
			e.printStackTrace(System.out);
		}
		return macAddress;

	}

	public static void main(String[] args) {

		System.out.println(getMacAddress("192.168.1.2"));
	}
}

[flytomylife1]

学习下 呵呵~

[WU_YEAH]

记得有个第三方开发的DLL可以直接获取，以前找到过


GO一下

[luzhiqin]

[Quote=引用 1 楼 wu_yeah 的回复:]
记得有个第三方开发的DLL可以直接获取，以前找到过


GO一下
[/Quote]
应该可以写个java程序获得吧

[caibird1024]

这东西有的难度吧，java支持到网络层编程，获取底层物理层的东西……

[okgoood]

帮 顶

[血战31天]

java取得网卡地址
String macStr = "";//MAC网卡地址
try {
InetAddress address = InetAddress.getLocalHost();//取得本地Ip地址
System.out.println("getLocalHost:" + address.toString());
//InetAddress address = InetAddress.getByName("192.168.46.53");
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
if (ni != null) {
byte[] mac = ni.getHardwareAddress();
if (mac != null) {
for (int i = 0; i < mac.length; i++) {
System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : "");
macStr = macStr + String.format("%02X%s",mac[i],(i < mac.length - 1) ? "-" : "");//格式化输出
}
} else {
System.out.println("Address doesn't exist or is not accessible.");
}
} else {
System.out.println("Network Interface for the specified address is not found.");
}
} catch (UnknownHostException ex) {
ex.printStackTrace();
} catch (SocketException ex1) {
ex1.printStackTrace();
}
System.out.println("macStr:" + macStr);

[luzhiqin]

byte[] mac = ni.getHardwareAddress();
这个地方报错!!什么情况是不是赋值有问题啊

[luzhiqin]

刚刚找到个好的..大家一起来分享一下啊
package com.luzhiqin.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class IpUtil {
private static final String[] windowsCommand = { "ipconfig", "/all" };
private static final String[] linuxCommand = { "/sbin/ifconfig", "-a" };
private static final Pattern macPattern = Pattern
.compile(".*((:?[0-9a-f]{2}[-:]){5}[0-9a-f]{2}).*",
Pattern.CASE_INSENSITIVE);

private final static List getMacAddressList() throws IOException {
final ArrayList macAddressList = new ArrayList();

final String os = System.getProperty("os.name");

final String[] command;
if (os.startsWith("Windows")) {
command = windowsCommand;
} else if (os.startsWith("Linux")) {
command = linuxCommand;
} else {
throw new IOException("Unknown operating system: " + os);
}

final Process process = Runtime.getRuntime().exec(command);
// Discard the stderr
new Thread() {
public void run() {
try {
InputStream errorStream = process.getErrorStream();
while (errorStream.read() != -1) {
}
errorStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();

// Extract the MAC addresses from stdout
BufferedReader reader = new BufferedReader(new InputStreamReader(
process.getInputStream()));
for (String line = null; (line = reader.readLine()) != null;) {
Matcher matcher = macPattern.matcher(line);
if (matcher.matches()) {
// macAddressList.add(matcher.group(1));
macAddressList.add(matcher.group(1).replaceAll("[-:]", ""));
}
}
reader.close();
return macAddressList;
}

public static String getMacAddress() {
try {
List addressList = getMacAddressList();
StringBuffer sb = new StringBuffer();
for (Iterator iter = addressList.iterator(); iter.hasNext();) {
sb.append("\n").append(iter.next());
}
return sb.toString();
} catch (IOException e) {
return null;
}
}
public final static void main(String[] args) {
try {
System.out.println(" MAC Address: " + getMacAddress());
} catch (Throwable t) {
t.printStackTrace();
}
}
}

[moon&sean]

好好研习研习下面几个类。
InetAddress
NetworkInterface
看看有什么方法可用

[qybao]

还有一种方法可以通过系统命令还获取

Process p = Runtime.getRuntime().exec("ipconfig /all");
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
for (String s=br.readLine(); s!=null; s=br.readLine()) {
    if (s.indexOf("Physical") >= 0) {
        System.out.println(s);
    }
}

[hy158753228]

package csdn.impulsehu.may;

import java.net.InetAddress;
import java.net.NetworkInterface;

public class MacAddressTest {
	public static void main(String[] args) {
		System.out.println(getMacAddress());
	}
	
	private static String getMacAddress() {
		InetAddress ia = null;
		NetworkInterface ni = null;
		byte[] bytes = null;
		String macAdd = "";
		
		try {
			ia = InetAddress.getLocalHost();
			ni = NetworkInterface.getByInetAddress(ia);
			bytes = ni.getHardwareAddress();
			for(int i=0; i<bytes.length; i++) {
				if(bytes[i] != 0) {
					if(bytes[i] >= 0) {
						macAdd = macAdd + Integer.toHexString(bytes[i]) + "-";
					} else {
						macAdd = macAdd + Integer.toHexString(bytes[i]).substring(6) + "-";
					}
				} else {
					macAdd = macAdd + "00" + "-";
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return macAdd.substring(0, macAdd.length()-1).toUpperCase();
	}
}