你可以使用sun.awt.OSInfo#getOSType()方法

如果你对一个开源项目是如何做这些事情感兴趣，你可以看看Terracotta类(Os.java)在这里处理这些垃圾:

http://svn.terracotta.org/svn/tc/dso/trunk/code/base/common/src/com/tc/util/runtime/ http://svn.terracotta.org/svn/tc/dso/tags/2.6.4/code/base/common/src/com/tc/util/runtime/

你可以在这里看到类似的类来处理JVM版本(Vm.java和VmVersion.java):

http://svn.terracotta.org/svn/tc/dso/trunk/common/src/main/java/com/tc/util/runtime/

因为谷歌点“kotlin os名称”到这个页面，这里是@Memin的答案的kotlin版本:

private var _osType: OsTypes? = null
val osType: OsTypes
    get() {
        if (_osType == null) {
            _osType = with(System.getProperty("os.name").lowercase(Locale.getDefault())) {
                if (contains("win"))
                    OsTypes.WINDOWS
                else if (listOf("nix", "nux", "aix").any { contains(it) })
                    OsTypes.LINUX
                else if (contains("mac"))
                    OsTypes.MAC
                else if (contains("sunos"))
                    OsTypes.SOLARIS
                else
                    OsTypes.OTHER
            }
        }
        return _osType!!
    }

enum class OsTypes {
    WINDOWS, LINUX, MAC, SOLARIS, OTHER
}

我喜欢沃尔夫冈的回答，只是因为我相信这样的事情应该是consts……

所以我把它重新措辞了一下，并想分享一下:)

/**
 * types of Operating Systems
 *
 * please keep the note below as a pseudo-license
 *
 * helper class to check the operating system this Java VM runs in
 * http://stackoverflow.com/questions/228477/how-do-i-programmatically-determine-operating-system-in-java
 * compare to http://svn.terracotta.org/svn/tc/dso/tags/2.6.4/code/base/common/src/com/tc/util/runtime/Os.java
 * http://www.docjar.com/html/api/org/apache/commons/lang/SystemUtils.java.html
 */
public enum OSType {
    MacOS("mac", "darwin"),
    Windows("win"),
    Linux("nux"),
    Other("generic");

    private static OSType detectedOS;

    private final String[] keys;

    private OSType(String... keys) {
        this.keys = keys;
    }

    private boolean match(String osKey) {
        for (int i = 0; i < keys.length; i++) {
            if (osKey.indexOf(keys[i]) != -1)
                return true;
        }
        return false;
    }

    public static OSType getOS_Type() {
        if (detectedOS == null)
            detectedOS = getOperatingSystemType(System.getProperty("os.name", Other.keys[0]).toLowerCase());
        return detectedOS;
    }

    private static OSType getOperatingSystemType(String osKey) {
        for (OSType osType : values()) {
            if (osType.match(osKey))
                return osType;
        }
        return Other;
    }
}

博士TL;

访问操作系统使用:System.getProperty(" OS .name")。

但是等等! !

为什么不创建一个实用工具类，使其可重用!而且在多次通话中可能会更快。干净，清晰，快点!

为这样的实用函数创建一个Util类。然后为每种操作系统类型创建公共枚举。

public class Util {     
        public enum OS {
            WINDOWS, LINUX, MAC, SOLARIS
        };// Operating systems.

    private static OS os = null;

    public static OS getOS() {
        if (os == null) {
            String operSys = System.getProperty("os.name").toLowerCase();
            if (operSys.contains("win")) {
                os = OS.WINDOWS;
            } else if (operSys.contains("nix") || operSys.contains("nux")
                    || operSys.contains("aix")) {
                os = OS.LINUX;
            } else if (operSys.contains("mac")) {
                os = OS.MAC;
            } else if (operSys.contains("sunos")) {
                os = OS.SOLARIS;
            }
        }
        return os;
    }
}

现在，您可以轻松地从任何类中调用类，如下所示由于我们将os变量声明为静态，它只会花费一次时间来识别系统类型，然后它可以一直使用到应用程序停止。)

            switch (Util.getOS()) {
            case WINDOWS:
                //do windows stuff
                break;
            case LINUX:

就是这样!

下面是一些简短、简洁(并且热切地计算过)的顶级答案:

switch(OSType.DETECTED){
...
}

helper enum:

public enum OSType {
    Windows, MacOS, Linux, Other;
    public static final  OSType DETECTED;
    static{
        String OS = System.getProperty("os.name", "generic").toLowerCase(Locale.ENGLISH);
        if ((OS.contains("mac")) || (OS.contains("darwin"))) {
            DETECTED = OSType.MacOS;
        } else if (OS.contains("win")) {
            DETECTED = OSType.Windows;
        } else if (OS.contains("nux")) {
            DETECTED = OSType.Linux;
        } else {
            DETECTED = OSType.Other;
        }
    }
}