java程序如何根据os决定执行哪个命令

Question

我必须制作一个程序，它将使用Windows的“ipconfig”和Linux的“ifconfig”打印网络设置，但我需要为这两个操作系统提供独特的实现。

Answer 1

You can get the name of the operating system through

System.getProperty("os.name")

Have a look at this page for some sample code.

---

If it's by any chance the IP of the local host you're interested in, there are ways to get this directly in Java:

• Getting the IP Address and Hostname of the Local Machine
• Get the workstation name/ip

---

There is no way to determine what the "show ip information"-command is for an arbitrary operating system. You will have to hard-code what the command is (if the is one) for each operating system name manually.

Answer 2

作为其他答案的补充，我将提到Commons Lang的SystemUtils ，它暴露了各种常量，如IS_OS_UNIX ， IS_OS_WINDOWS等。

Answer 3

Building on aioobe's solution :

final String osname = System.getProperty("os.name").toLowerCase();
String processName;
if(osname.startsWith("win"))
    processName="ipconfig /some /parameter";
else
    processName="ifconfig -some -parameter";
Runtime.getRuntime().exec(processName);

Answer 4

For reference, here's a concrete example that sets a property only for a particular OS:

if (System.getProperty("os.name").startsWith("Mac OS X")) {
    System.setProperty("apple.awt.graphics.UseQuartz", "true");
}