一、操作系统的枚举

public enum OsType {

	Linux("Linux"), Mac_OS("Mac OS"), Mac_OS_X("Mac OS X"), Windows("Windows");

	private OsType(String desc) {
		this.description = desc;
	}

	public String toString() {
		return description;
	}

	private String description;
}

二、判断操作系统类型以及获取当前系统名称

public class OsInfoUtil {
	private static String OS = System.getProperty("os.name").toLowerCase();

	private static OsInfoUtil _instance = new OsInfoUtil();

	private OsType platform;

	private OsInfoUtil() {
	}

	public static boolean isLinux() {
		return OS.indexOf("linux") >= 0;
	}

	public static boolean isMacOS() {
		return OS.indexOf("mac") >= 0 && OS.indexOf("os") > 0 && OS.indexOf("x") < 0;
	}

	public static boolean isMacOSX() {
		return OS.indexOf("mac") >= 0 && OS.indexOf("os") > 0 && OS.indexOf("x") > 0;
	}

	public static boolean isWindows() {
		return OS.indexOf("windows") >= 0;
	}

	/**
	 * 获取操作系统名字
	 * 
	 * @return 操作系统名
	 */
	public static OsType getOSname() {
		if (isLinux()) {
			_instance.platform = OsType.Linux;
		} else if (isMacOS()) {
			_instance.platform = OsType.Mac_OS;
		} else if (isMacOSX()) {
			_instance.platform = OsType.Mac_OS_X;
		} else if (isWindows()) {
			_instance.platform = OsType.Windows;
		}
		return _instance.platform;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		System.out.println(OsInfoUtil.getOSname());// 获取系统类型
		System.out.println(OsInfoUtil.isWindows());// 判断是否为windows系统
	}