java获取系统信息

public class SystemInfo {

	public static void main(String[] args) {
	//系统属性
	Properties prop = System.getProperties();
	
	System.out.println(prop.getProperty("os.name")); // 操作系统名称 Windows 7
	System.out.println(prop.getProperty("os.version")); //操作系统版本6.1
	System.out.println(prop.getProperty("os.arch")); //操作系统架构    当前x86
	System.out.println(prop.getProperty("java.version")); //Java版本1.6.0_17
	System.out.println(prop.getProperty("java.vendor")); // jdk厂商Sun Microsystems Inc.
	System.out.println(prop.getProperty("java.specification.version")); //Java运行时环境版本1.6
	System.out.println(prop.getProperty("java.specification.name")); //Java运行时环境Java Platform API Specification
	System.out.println(prop.getProperty("java.vm.version")); //Java虚拟机版本14.3-b01
	System.out.println(prop.getProperty("java.vm.name"));// Java虚拟机Java HotSpot(TM) Client VM
	System.out.println(prop.getProperty("user.dir"));//用户临时目录D:\workspace01\ssi
	 
	System.out.println(Runtime.getRuntime().maxMemory()/1024/1024 + "" ); //最大内存  63M
	System.out.println(Runtime.getRuntime().totalMemory()/1024/1024 + "" ); //可用内存 4M
	System.out.println(Runtime.getRuntime().freeMemory()/1024/1024 + "" ); //剩余内存 4M
	
	}
}