/**

      * Java获取操作系统的配置环境

      * @throws Exception

      */

     @Test

     public void testPro() throws Exception {

         Properties properties = System.getProperties();

         for(Entry<Object, Object> entry:properties.entrySet()){

             System.out.println(entry.getKey()+"============="+entry.getValue());

         }

         //获取从根目录到项目名的路径

         String path = System.getProperty("user.dir");

         System.out.println(path);

     }