Detecting Windows or Linux? [duplicate]

2019-03-07 20:26发布

This question already has an answer here:

I am seeking to run a common Java program in both Windows and Linux.

The program needs to do some things differently on each platform.

So how can / should my Java program detect it is running under Linux vs. Windows?

5条回答
Luminary・发光体
2楼-- · 2019-03-07 20:41

Useful simple class are forked by me on: https://gist.github.com/kiuz/816e24aa787c2d102dd0

public class OSValidator {

    private static String OS = System.getProperty("os.name").toLowerCase();

    public static void main(String[] args) {

        System.out.println(OS);

        if (isWindows()) {
            System.out.println("This is Windows");
        } else if (isMac()) {
            System.out.println("This is Mac");
        } else if (isUnix()) {
            System.out.println("This is Unix or Linux");
        } else if (isSolaris()) {
            System.out.println("This is Solaris");
        } else {
            System.out.println("Your OS is not support!!");
        }
    }

    public static boolean isWindows() {
        return OS.contains("win");
    }

    public static boolean isMac() {
        return OS.contains("mac");
    }

    public static boolean isUnix() {
        return (OS.contains("nix") || OS.contains("nux") || OS.contains("aix"));
    }

    public static boolean isSolaris() {
        return OS.contains("sunos");
    }
    public static String getOS(){
        if (isWindows()) {
            return "win";
        } else if (isMac()) {
            return "osx";
        } else if (isUnix()) {
            return "uni";
        } else if (isSolaris()) {
            return "sol";
        } else {
            return "err";
        }
    }

}
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时光不老,我们不散
3楼-- · 2019-03-07 20:46

I think It's a best approach to use Apache lang dependency to decide which OS you're running programmatically through Java

import org.apache.commons.lang3.SystemUtils;

public class App {
    public static void main( String[] args ) {
        if(SystemUtils.IS_OS_WINDOWS_7)
            System.out.println("It's a Windows 7 OS");
        if(SystemUtils.IS_OS_WINDOWS_8)
            System.out.println("It's a Windows 8 OS");
        if(SystemUtils.IS_OS_LINUX)
            System.out.println("It's a Linux OS");
        if(SystemUtils.IS_OS_MAC)
            System.out.println("It's a MAC OS");
    }
}
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姐就是有狂的资本
4楼-- · 2019-03-07 20:48

apache commons lang has a class SystemUtils.java you can use :

SystemUtils.IS_OS_LINUX
SystemUtils.IS_OS_WINDOWS
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欢心
5楼-- · 2019-03-07 20:49

You can use "system.properties.os", for example:

public class GetOs {

  public static void main (String[] args) {
    String s = 
      "name: " + System.getProperty ("os.name");
    s += ", version: " + System.getProperty ("os.version");
    s += ", arch: " + System.getProperty ("os.arch");
    System.out.println ("OS=" + s);
  }
}

// EXAMPLE OUTPUT: OS=name: Windows 7, version: 6.1, arch: amd64

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