3

我正在开发一个软件，我需要通过 java 代码列出计算机的 IP 地址和 MAC 地址。有没有办法获取ip地址和mac地址的列表？

谢谢

4

2 回答 2

7

从 JDK 1.6 开始，Java 开发人员可以通过 NetworkInterface 类访问网卡详细信息。

            InetAddress ip;
    ip = InetAddress.getLocalHost();
    System.out.println("Current IP address : " + ip.getHostAddress());

    NetworkInterface network = NetworkInterface.getByInetAddress(ip);

    byte[] mac = network.getHardwareAddress();

    System.out.print("Current MAC address : ");

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < mac.length; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));        
    }
    System.out.println(sb.toString());

对于多个 IP 地址：

                    java.util.Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
        en.hasMoreElements(); ) {
        NetworkInterface iface = en.nextElement();
        List<InterfaceAddress> addrs = iface.getInterfaceAddresses();
        //For each network interfaces iterate through each ip address
        for(InterfaceAddress addr : addrs) {
                         ip = addr.getAddress();
                          //Process the IP ...
于 2012-10-05T06:44:13.943 回答
1

从 java 程序运行命令的示例代码，

    Process p;
    String cmd="ifconfig-a";
    p = Runtime.getRuntime().exec(cmd);
    BufferedReader br = new BufferedReader(
    new InputStreamReader(p.getInputStream()));
    while ((s = br.readLine()) != null)
    System.out.println("line: " + s);
    p.waitFor();
    System.out.println ("exit: " + p.exitValue());
    p.destroy();

输出：

line: eth0      Link encap:Ethernet  HWaddr 00:13:D3:DE:5A:A4  --->MAC address in linux
于 2012-10-05T06:47:10.840 回答