Question

我正在为windows编写一个程序，列出所有网络适配器并停用所有选定的程序。我知道如何使用netsh修改网络适配器，但问题是我无法从NetworkInterface类中获取相关信息。

NetworkInterface类的方法是getName（）和getDisplayName（），但它们似乎只生成不相关的数据。

我直接从oracle中获取了这个例子：

http://docs.oracle.com/javase/tutorial/networking/nifs/listing.html

public class ListNets {

  public static void main(String args[]) throws SocketException {
    Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
    for (NetworkInterface netint : Collections.list(nets))
      displayInterfaceInformation(netint);
  }

  static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
    out.printf("Display name: %s\n", netint.getDisplayName());
    out.printf("Name: %s\n", netint.getName());
    Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
    for (InetAddress inetAddress : Collections.list(inetAddresses)) {
      out.printf("InetAddress: %s\n", inetAddress);
    }
    out.printf("\n");
  }
}

此示例生成此类输出：

Display name: Intel(R) Ethernet Connection (2) I219-V
Name: eth4
InetAddress: /10.0.0.4
InetAddress: /fe80:0:0:0:cc75:ed6:3089:bd61%eth4

但是我无法使用此信息，因为netsh需要适配器的名称，Ethernet 1不是Intel(R) Ethernet Connection (2) I219-V或eth4。在我看来，getName（）应返回操作系统特定的名称，并在操作系统本身中使用。是否有可能用其他标准java类来检索适配器的真实名称？

目前我的唯一解决方案是getmac /fo csv /v来获取正确的信息并进行解析。由于我不想编写自己的包装器来访问c ++函数GetAdaptersAddresses，因为我需要学习它。

Answer 1

我刚刚回答了similar question并遇到了这个问题。因此，对任何想知道的人来说，tl; dr都是this comment来自枚举JVM中接口名称的本机实现：

/*
 * Windows implementation of the java.net.NetworkInterface native methods.
 * This module provides the implementations of getAll, getByName, getByIndex,
 * and getByAddress.
 *
 * Interfaces and addresses are enumerated using the IP helper routines
 * GetIfTable, GetIfAddrTable resp. These routines are available on Windows
 * 98, NT SP+4, 2000, and XP. They are also available on Windows 95 if
 * IE is upgraded to 5.x.
 *
 * Windows does not have any standard for device names so we are forced
 * to use our own convention which is based on the normal Unix naming
 * convention ("lo" for the loopback, eth0, eth1, .. for ethernet devices,
 * tr0, tr1, .. for token ring, and so on). This convention gives us
 * consistency across multiple Windows editions and also consistency with
 * Solaris/Linux device names. Note that we always enumerate in index
 * order and this ensures consistent device number across invocations.
 */

是的，由于Windows 95是一件事，它已经被故意破坏了。

在Windows上打破Java NetworkInterface getName（）？

1 个答案: