Tree的工具类
该类通过JSP页面提供的文件路径地址，列出该文件路径下的所有文件，并以TREE的方式显示。
?
JSP调用类：
<%@page language="java" import="java.util.*" pageEncoding="gb2312"
?isELIgnored="false"%>
<%@page buffer="none"%>
<%@page import="java.sql.*"%>
<%@page import="com.util.js.*"%>
<%@page import="java.io.File"%>
<%@include?file="../../../../include/inc/top.inc"%>
<%@include?file="../../../../include/inc/tree.inc"%>
<head>
</head>
????<%
????
?????String confPath = request.getRealPath("/conf").replace("\","/");
?????Tree tb = new Tree();
?????tb.out=out;
?????tb.session=session;
?????tb.request =request;
?????tb.title="";
?????tb.root="conf";
?????tb.printTree(confPath);
?
????%>
?
?
JAVA类：
package com.util.js;
import java.io.File;
public class Tree {
?public javax.servlet.jsp.JspWriter out = null;
?public javax.servlet.http.HttpSession session = null;
?public javax.servlet.http.HttpServletRequest request = null;
?public String title="";
?public String root="";
?
?public? void printTree(String FilePath)
?{
??try {
??? File file = new File(FilePath);
??? if(file.exists())
??? {
???? if("".equals(root)||root==null)
???? {
????? root="root";
???? }
???? out.println("<div id="main">");
???? out.println("<ul id="browser" class="filetree treeview-famfamfam">");
???? out.println("<li>");
???? out.println("<span class="folder">"+root+"</span>");
???? out.println("<ul>");
???
???? listFile(file.listFiles());
???? out.println("</ul>");
???? out.println("</li>");
???? out.println("</ul>");
???? out.println("</div>");
??? }
??? else
??? {
???out.println("<font color='red'>该目录下没有文件或文件夹不存在!</a>");
??? }
??} catch (Exception e) {
???e.printStackTrace();
??}
??
?}
?public? void listFile(File[] files)
?{
??String path = request.getContextPath();
??String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
??try {
???for (int i = 0; i < files.length; i++) {
????if (files[i].isDirectory())
????{
?????
?????out.println("<li class="closed">");
?????out.println("<span class="folder">" + files[i].getName()+ "</span>");
?????out.println("<ul>");
?????listFile(files[i].listFiles());
?????out.println("</ul>");
?????out.println("</li>");
????}
????else
????{
?????String fileAbsolute = files[i].getAbsolutePath();
?????
?????String filePath = fileAbsolute.toString().substring(fileAbsolute.toString().lastIndexOf(root),fileAbsolute.toString().length());
?????filePath=filePath.replace("\","/");
?????//System.out.println("^^^"+filePath);
?????out.println("<li>");
?????out.println("<span class="file"><a? onclick="window.open('"+basePath+filePath+"');">"+files[i].getName()+"</a></span>");
?????out.println("</li>");
?????
????}
???}
??} catch (Exception e) {
???e.printStackTrace();
??}
?}
?public static void main(String[] args)
?{
?? //File file = new File("E:\\Tomcat 6.0\\webapps\\BackUpFileAlarmSystem\\conf");
?? //listFile(file.listFiles());
??
?}
}
