下面的代码显示了你可以从System API得到的值，这些都可以通过这个API得到。

public class App {
    public static void main( String[] args ) {
        //Operating system name
        System.out.println(System.getProperty("os.name"));

        //Operating system version
        System.out.println(System.getProperty("os.version"));

        //Path separator character used in java.class.path
        System.out.println(System.getProperty("path.separator"));

        //User working directory
        System.out.println(System.getProperty("user.dir"));

        //User home directory
        System.out.println(System.getProperty("user.home"));

        //User account name
        System.out.println(System.getProperty("user.name"));

        //Operating system architecture
        System.out.println(System.getProperty("os.arch"));

        //Sequence used by operating system to separate lines in text files
        System.out.println(System.getProperty("line.separator"));

        System.out.println(System.getProperty("java.version")); //JRE version number

        System.out.println(System.getProperty("java.vendor.url")); //JRE vendor URL

        System.out.println(System.getProperty("java.vendor")); //JRE vendor name

        System.out.println(System.getProperty("java.home")); //Installation directory for Java Runtime Environment (JRE)

        System.out.println(System.getProperty("java.class.path"));

        System.out.println(System.getProperty("file.separator"));
    }
}

答案:-

Windows 7
6.1
;
C:\Users\user\Documents\workspace-eclipse\JavaExample
C:\Users\user
user
amd64


1.7.0_71
http://java.oracle.com/
Oracle Corporation
C:\Program Files\Java\jre7
C:\Users\user\Documents\workspace-Eclipse\JavaExample\target\classes
\

试试这个，简单易行

System.getProperty("os.name");
System.getProperty("os.version");
System.getProperty("os.arch");

你可以使用:

System.getProperty("os.name")

附注:你可能会发现这段代码很有用:

class ShowProperties {
    public static void main(String[] args) {
        System.getProperties().list(System.out);
    }
}

它所做的就是打印出Java实现提供的所有属性。它将使您了解通过属性可以了解Java环境的哪些信息。: -)

下面的代码显示了你可以从System API得到的值，这些都可以通过这个API得到。

public class App {
    public static void main( String[] args ) {
        //Operating system name
        System.out.println(System.getProperty("os.name"));

        //Operating system version
        System.out.println(System.getProperty("os.version"));

        //Path separator character used in java.class.path
        System.out.println(System.getProperty("path.separator"));

        //User working directory
        System.out.println(System.getProperty("user.dir"));

        //User home directory
        System.out.println(System.getProperty("user.home"));

        //User account name
        System.out.println(System.getProperty("user.name"));

        //Operating system architecture
        System.out.println(System.getProperty("os.arch"));

        //Sequence used by operating system to separate lines in text files
        System.out.println(System.getProperty("line.separator"));

        System.out.println(System.getProperty("java.version")); //JRE version number

        System.out.println(System.getProperty("java.vendor.url")); //JRE vendor URL

        System.out.println(System.getProperty("java.vendor")); //JRE vendor name

        System.out.println(System.getProperty("java.home")); //Installation directory for Java Runtime Environment (JRE)

        System.out.println(System.getProperty("java.class.path"));

        System.out.println(System.getProperty("file.separator"));
    }
}

答案:-

Windows 7
6.1
;
C:\Users\user\Documents\workspace-eclipse\JavaExample
C:\Users\user
user
amd64


1.7.0_71
http://java.oracle.com/
Oracle Corporation
C:\Program Files\Java\jre7
C:\Users\user\Documents\workspace-Eclipse\JavaExample\target\classes
\

我发现Swingx的操作系统Utils可以完成这项工作。

如其他答案所示，系统。getProperty提供原始数据。然而，Apache Commons Lang组件为java.lang.System提供了一个包装器，它具有SystemUtils等方便的属性。IS_OS_WINDOWS，很像前面提到的Swingx OS util。