System.getProperty()获取system基本配置信息

/**
     * System properties. The following properties are guaranteed to be defined:
     * <dl>
     * <dt>java.version         <dd>Java version number
     * <dt>java.vendor          <dd>Java vendor specific string
     * <dt>java.vendor.url      <dd>Java vendor URL
     * <dt>java.home            <dd>Java installation directory
     * <dt>java.class.version   <dd>Java class version number
     * <dt>java.class.path      <dd>Java classpath
     * <dt>os.name              <dd>Operating System Name
     * <dt>os.arch              <dd>Operating System Architecture
     * <dt>os.version           <dd>Operating System Version
     * <dt>file.separator       <dd>File separator ("/" on Unix)
     * <dt>path.separator       <dd>Path separator (":" on Unix)
     * <dt>line.separator       <dd>Line separator ("\n" on Unix)
     * <dt>user.name            <dd>User account name
     * <dt>user.home            <dd>User home directory
     * <dt>user.dir             <dd>User's current working directory
     * </dl>

     */

System.out.println(System.getProperty("java.version"));
System.out.println(System.getProperty("java.vendor"));
System.out.println(System.getProperty("java.vendor.url"));
System.out.println(System.getProperty("java.home"));
System.out.println(System.getProperty("java.class.path"));
System.out.println(System.getProperty("os.name"));
System.out.println(System.getProperty("os.version"));
System.out.println(System.getProperty("user.name"));
System.out.println(System.getProperty("user.dir"));

System.out.println(System.getProperty("user.home"));

结果：

1.7.0_51
Oracle Corporation
http://java.oracle.com/
D:\Program Files\Java\jdk1.7.0_51\jre
D:\dh\workspace\zl_201601\Wittdong\bin;D:\dh\workspace\zl_201601\fund\WebRoot\WEB-INF\lib\commons-httpclient-3.1.jar;D:\dh\workspace\zl_201601\fund\WebRoot\WEB-INF\lib\commons-logging-1.1.3.jar
Windows 7
6.1
Administrator
D:\dh\workspace\zl_201601\Wittdong
C:\Users\Administrator