System.getProperty()参数大全

java.version            Java Runtime Environment version 
java.vendor            Java Runtime Environment vendor 
java.vendor.url            Java vendor URL 
java.home            Java installation directory 
java.vm.specification.version                    Java Virtual Machine specification version 
java.vm.specification.vendor                    Java Virtual Machine specification vendor 
java.vm.specification.name                    Java Virtual Machine specification name 
java.vm.version            Java Virtual Machine implementation version 
java.vm.vendor            Java Virtual Machine implementation vendor 
java.vm.name            Java Virtual Machine implementation name 
java.specification.version                Java Runtime Environment specification version 
java.specification.vendor             Java Runtime Environment specification vendor 
java.specification.name        Java Runtime Environment specification name 
java.class.version                        Java class format version number 
java.class.path                  Java class path 
java.library.path                        List of paths to search when loading libraries 
java.io.tmpdir                Default temp file path 
java.compiler            Name of JIT compiler to use 
java.ext.dirs            Path of extension directory or directories 
os.name                Operating system name 
os.arch                Operating system architecture 
os.version            Operating system version 
file.separator            File separator ("/" on UNIX) 
path.separator            Path separator (":" on UNIX) 
line.separator            Line separator ("\n" on UNIX) 
user.name            User's account name 
user.home            User's home directory 
user.dir                User's current working directory   

Properties props=System.getProperties(); //系统属性
   System.out.println("Java的运行环境版本："+props.getProperty("java.version"));
   System.out.println("Java的运行环境供应商："+props.getProperty("java.vendor"));
   System.out.println("Java供应商的URL："+props.getProperty("java.vendor.url"));
   System.out.println("Java的安装路径："+props.getProperty("java.home"));
   System.out.println("Java的虚拟机规范版本："+props.getProperty("java.vm.specification.version"));
   System.out.println("Java的虚拟机规范供应商："+props.getProperty("java.vm.specification.vendor"));
   System.out.println("Java的虚拟机规范名称："+props.getProperty("java.vm.specification.name"));
   System.out.println("Java的虚拟机实现版本："+props.getProperty("java.vm.version"));
   System.out.println("Java的虚拟机实现供应商："+props.getProperty("java.vm.vendor"));
   System.out.println("Java的虚拟机实现名称："+props.getProperty("java.vm.name"));
   System.out.println("Java运行时环境规范版本："+props.getProperty("java.specification.version"));
   System.out.println("Java运行时环境规范供应商："+props.getProperty("java.specification.vender"));
   System.out.println("Java运行时环境规范名称："+props.getProperty("java.specification.name"));
   System.out.println("Java的类格式版本号："+props.getProperty("java.class.version"));
   System.out.println("Java的类路径："+props.getProperty("java.class.path"));
   System.out.println("加载库时搜索的路径列表："+props.getProperty("java.library.path"));
   System.out.println("默认的临时文件路径："+props.getProperty("java.io.tmpdir"));
   System.out.println("一个或多个扩展目录的路径："+props.getProperty("java.ext.dirs"));
   System.out.println("操作系统的名称："+props.getProperty("os.name"));
   System.out.println("操作系统的构架："+props.getProperty("os.arch"));
   System.out.println("操作系统的版本："+props.getProperty("os.version"));
   System.out.println("文件分隔符："+props.getProperty("file.separator"));   //在 unix 系统中是＂／＂
   System.out.println("路径分隔符："+props.getProperty("path.separator"));   //在 unix 系统中是＂:＂
   System.out.println("行分隔符："+props.getProperty("line.separator"));   //在 unix 系统中是＂/n＂
   System.out.println("用户的账户名称："+props.getProperty("user.name"));
   System.out.println("用户的主目录："+props.getProperty("user.home"));
   System.out.println("用户的当前工作目录："+props.getProperty("user.dir"));