java编程思想_004获得运行环境

package wzs.test2;

// 获得运行环境
public class Test_wzs1
{
    public static void main(String[] args)
    {
        System.getProperties().list(System.out);
        System.out.println("\nuser.name=" + System.getProperty("user.name"));
        System.out.println("java.home=" + System.getProperty("java.home"));
    }
}

输出结果：

-- listing properties --
java.runtime.name=Java(TM) SE Runtime Environment
sun.boot.library.path=C:\Program Files\Java\jdk1.6.0\jre\bin
java.vm.version=1.6.0-b105
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=;
java.vm.name=Java HotSpot(TM) Client VM
file.encoding.pkg=sun.io
user.country=CN
sun.java.launcher=SUN_STANDARD
sun.os.patch.level=Service Pack 3
java.vm.specification.name=Java Virtual Machine Specification
user.dir=D:\workspace\zthinkinjavaTest
java.runtime.version=1.6.0-b105
java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs=C:\Program Files\Java\jdk1.6.0\jre\li...
os.arch=x86
java.io.tmpdir=C:\DOCUME~1\WWX154~1\LOCALS~1\Temp\
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
user.variant=
os.name=Windows XP
sun.jnu.encoding=GBK
java.library.path=C:\Program Files\Java\jdk1.6.0\jre\bi...
java.specification.name=Java Platform API Specification
java.class.version=50.0
sun.management.compiler=HotSpot Client Compiler
os.version=5.1
user.home=C:\Documents and Settings\wWX154783
user.timezone=
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=GBK
java.specification.version=1.6
user.name=wWX154783
java.class.path=D:\workspace\zthinkinjavaTest\bin
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=C:\Program Files\Java\jdk1.6.0\jre
java.specification.vendor=Sun Microsystems Inc.
user.language=zh
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode, sharing
java.version=1.6.0
java.ext.dirs=C:\Program Files\Java\jdk1.6.0\jre\li...
sun.boot.class.path=C:\Program Files\Java\jdk1.6.0\jre\li...
java.vendor=Sun Microsystems Inc.
file.separator=\
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.desktop=windows
sun.cpu.isalist=pentium_pro+mmx pentium_pro pentium+m...

user.name=wWX154783
java.home=C:\Program Files\Java\jdk1.6.0\jre