最近一段時間寫一個授權的程式，需要獲取很多資訊來保證程式不能隨意複製使用，必須經過授權才可以。

為了限制使用者使用的作業系統，必須有統一的方法來獲取才可以。

在JAVA中，通過System.getProperty("os.name")來獲取，通過參考：http://lopica.sourceforge.net/os.html 來實現各作業系統的判斷。

針對windows系統，這裡不具體判斷是那個版本，如果有需要，可以在判斷出windows之後，繼續判斷，判斷需要考慮java的版本，版本不同，結果也不一樣。

下面上程式碼：

1.列舉型別：EPlatform

/**
 * 平臺
 * @author isea533
 */
public enum EPlatform {
	Any("any"),
	Linux("Linux"),
	Mac_OS("Mac OS"),
	Mac_OS_X("Mac OS X"),
	Windows("Windows"),
	OS2("OS/2"),
	Solaris("Solaris"),
	SunOS("SunOS"),
	MPEiX("MPE/iX"),
	HP_UX("HP-UX"),
	AIX("AIX"),
	OS390("OS/390"),
	FreeBSD("FreeBSD"),
	Irix("Irix"),
	Digital_Unix("Digital Unix"),
	NetWare_411("NetWare"),
	OSF1("OSF1"),
	OpenVMS("OpenVMS"),
	Others("Others");
	
	private EPlatform(String desc){
		this.description = desc;
	}
	
	public String toString(){
		return description;
	}
	
	private String description;
}
 

/**
 * 作業系統類：
 * 獲取System.getProperty("os.name")對應的作業系統
 * @author isea533
 */
public class OSinfo {
	
	private static String OS = System.getProperty("os.name").toLowerCase();
	
	private static OSinfo _instance = new OSinfo();
	
	private EPlatform platform;
	
	private OSinfo(){}
	
	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;
	}
	
	public static boolean isOS2(){
		return OS.indexOf("os/2")>=0;
	}
	
	public static boolean isSolaris(){
		return OS.indexOf("solaris")>=0;
	}
	
	public static boolean isSunOS(){
		return OS.indexOf("sunos")>=0;
	}
	
	public static boolean isMPEiX(){
		return OS.indexOf("mpe/ix")>=0;
	}
	
	public static boolean isHPUX(){
		return OS.indexOf("hp-ux")>=0;
	}
	
	public static boolean isAix(){
		return OS.indexOf("aix")>=0;
	}
	
	public static boolean isOS390(){
		return OS.indexOf("os/390")>=0;
	}
	
	public static boolean isFreeBSD(){
		return OS.indexOf("freebsd")>=0;
	}
	
	public static boolean isIrix(){
		return OS.indexOf("irix")>=0;
	}
	
	public static boolean isDigitalUnix(){
		return OS.indexOf("digital")>=0&&OS.indexOf("unix")>0;
	}
	
	public static boolean isNetWare(){
		return OS.indexOf("netware")>=0;
	}
	
	public static boolean isOSF1(){
		return OS.indexOf("osf1")>=0;
	}
	
	public static boolean isOpenVMS(){
		return OS.indexOf("openvms")>=0;
	}
	
	/**
	 * 獲取作業系統名字
	 * @return 作業系統名
	 */
	public static EPlatform getOSname(){
		if(isAix()){
			_instance.platform = EPlatform.AIX;
		}else if (isDigitalUnix()) {
			_instance.platform = EPlatform.Digital_Unix;
		}else if (isFreeBSD()) {
			_instance.platform = EPlatform.FreeBSD;
		}else if (isHPUX()) {
			_instance.platform = EPlatform.HP_UX;
		}else if (isIrix()) {
			_instance.platform = EPlatform.Irix;
		}else if (isLinux()) {
			_instance.platform = EPlatform.Linux;
		}else if (isMacOS()) {
			_instance.platform = EPlatform.Mac_OS;
		}else if (isMacOSX()) {
			_instance.platform = EPlatform.Mac_OS_X;
		}else if (isMPEiX()) {
			_instance.platform = EPlatform.MPEiX;
		}else if (isNetWare()) {
			_instance.platform = EPlatform.NetWare_411;
		}else if (isOpenVMS()) {
			_instance.platform = EPlatform.OpenVMS;
		}else if (isOS2()) {
			_instance.platform = EPlatform.OS2;
		}else if (isOS390()) {
			_instance.platform = EPlatform.OS390;
		}else if (isOSF1()) {
			_instance.platform = EPlatform.OSF1;
		}else if (isSolaris()) {
			_instance.platform = EPlatform.Solaris;
		}else if (isSunOS()) {
			_instance.platform = EPlatform.SunOS;
		}else if (isWindows()) {
			_instance.platform = EPlatform.Windows;
		}else{
			_instance.platform = EPlatform.Others;
		}
		return _instance.platform;
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		System.out.println(OSinfo.getOSname());
	}

}
 

如果結果錯誤，你可以使用下面的程式碼獲取你的作業系統資訊：

class WhatOS 
{
  public static void main( String args[] ) 
  {
    System.out.println( System.getProperty("os.name") );
    System.out.println( System.getProperty("os.version") );
    System.out.println( System.getProperty("os.arch") );
  }
}