System.getProperty以获取的值

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("path_separator:"+ System.getProperty("path.separator"));
  System.out.println("line_separator:"+ System.getProperty("line.separator"));

 

Win7 电脑结果：

java_vendor:Sun Microsystems Inc.   提供商
java_vendor_url:http://java.sun.com/   提供商地址
java_home:D:\tools\Java\jdk1.5.0_21\jre   jdk路径
java_class_version:49.0     格式版本
java_class_path:D:\workspaces\arron.huang-lottery\TestJava\bin 项目class文件在的路径
os_name:Windows 7     系统名
os_arch:x86      系统架构
os_version:6.1      系统版本
user_name:arron.huang     用户名
user_home:C:\Users\arron.huang    用户目录
user_dir:D:\workspaces\arron.huang-lottery\TestJava 项目路径
java_vm_specification_version:1.0   虚拟机版本
java_vm_specification_vendor:Sun Microsystems Inc. 虚拟机供应商
java_vm_specification_name:Java Virtual Machine Specification 规范名称
java_vm_version:1.5.0_21-b01    虚拟机实现版本
java_vm_vendor:Sun Microsystems Inc.   java 运行时环境规范供应商
java_vm_name:Java HotSpot(TM) Client VM   java实现名称
java_ext_dirs:D:\tools\Java\jdk1.5.0_21\jre\lib\ext Java 虚拟机实现名称
file_separator:\     文件分隔符（路径之间分割）    
path_separator:;     路径分割
line_separator:      行分割（\n）

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System.setProperty（"",""）保存需要同配置，如:链接外部接口，外部接口需要，只登陆一次的情况