java的System.getProperty()方法可以获取的值

java.version	Java 运行时环境版本
java.vendor	Java 运行时环境供应商
java.vendor.url	Java 供应商的 URL
java.home	Java 安装目录
java.vm.specification.version	Java 虚拟机规范版本
java.vm.specification.vendor	Java 虚拟机规范供应商
java.vm.specification.name	Java 虚拟机规范名称
java.vm.version	Java 虚拟机实现版本
java.vm.vendor	Java 虚拟机实现供应商
java.vm.name	Java 虚拟机实现名称
java.specification.version	Java 运行时环境规范版本
java.specification.vendor	Java 运行时环境规范供应商
java.specification.name	Java 运行时环境规范名称
java.class.version	Java 类格式版本号
java.class.path	Java 类路径
java.library.path	加载库时搜索的路径列表
java.io.tmpdir	默认的临时文件路径
java.compiler	要使用的 JIT 编译器的名称
java.ext.dirs	一个或多个扩展目录的路径
os.name	操作系统的名称
os.arch	操作系统的架构
os.version	操作系统的版本
file.separator	文件分隔符（在 UNIX 系统中是“/”）
file.encoding	得到当前文件的编码格式
path.separator	路径分隔符（在 UNIX 系统中是“:”）
line.separator	行分隔符（在 UNIX 系统中是“/n”）
user.name	用户的账户名称
user.home	用户的主目录
user.dir	用户的当前工作目录

 

利用System.getProperties().list(System.out);可以打出所有的key及值

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-beta2-b86
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=E:\workspace\webProject
java.runtime.version=1.6.0-beta2-b86
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\txb\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\bin;.;...
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\txb
user.timezone=
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=UTF-8
java.specification.version=1.6
user.name=txb
java.class.path=E:\workspace\webProject\build\classes...
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-beta2
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...

 

 

 

 

public static void main(String[] args)
    {
        System.out.println("java_vendor:" + System.getProperty("java.vendor"));     
        System.out.println("java_vendor_url:" + System.getProperty("java.vendor.url"));     
        System.out.println("java_home:" + System.getProperty("java.home"));     
        System.out.println("java_class_version:" + System.getProperty("java.class.version"));     
        System.out.println("java_class_path:" + System.getProperty("java.class.path"));     
        System.out.println("os_name:" + System.getProperty("os.name"));     
        System.out.println("os_arch:" + System.getProperty("os.arch"));     
        System.out.println("os_version:" + System.getProperty("os.version"));     
        System.out.println("user_name:" + System.getProperty("user.name"));     
        System.out.println("user_home:" + System.getProperty("user.home"));     
        System.out.println("user_dir:" + System.getProperty("user.dir"));     
        System.out.println("java_vm_specification_version:" + System.getProperty("java.vm.specification.version"));     
        System.out.println("java_vm_specification_vendor:" + System.getProperty("java.vm.specification.vendor"));     
        System.out.println("java_vm_specification_name:" + System.getProperty("java.vm.specification.name"));     
        System.out.println("java_vm_version:" + System.getProperty("java.vm.version"));     
        System.out.println("java_vm_vendor:" + System.getProperty("java.vm.vendor"));     
        System.out.println("java_vm_name:" + System.getProperty("java.vm.name"));     
        System.out.println("java_ext_dirs:" + System.getProperty("java.ext.dirs"));     
        System.out.println("file_separator:" + System.getProperty("file.separator"));
　　　　 System.out.println("file.encoding:" + System.getProperty("file.encoding"));





        System.out.println("path_separator:" + System.getProperty("path.separator"));     
        System.out.println("line_separator:" + System.getProperty("line.separator"));     
    }
/*输出结果：
java_vendor:Sun Microsystems Inc.
java_vendor_url:http://java.sun.com/
java_home:C:\Program Files\Java\jre6
java_class_version:50.0
java_class_path:E:\workspace\test\bin
os_name:Windows XP
os_arch:x86
os_version:5.1
user_name:txb
user_home:C:\Documents and Settings\txb
user_dir:E:\workspace\test
java_vm_specification_version:1.0
java_vm_specification_vendor:Sun Microsystems Inc.
java_vm_specification_name:Java Virtual Machine Specification
java_vm_version:19.1-b02
java_vm_vendor:Sun Microsystems Inc.
java_vm_name:Java HotSpot(TM) Client VM
java_ext_dirs:C:\Program Files\Java\jre6\lib\ext;C:\WINDOWS\Sun\Java\lib\ext
file_separator:\
file.encoding:UTF-8
path_separator:;
line_separator:
*/