anchor.diff:  
   }
   
  -Uploader up = new Uploader(request);
   up.setSavePath( dir );
   String[] fileType = {".gif" , ".png" , ".jpg" , ".jpeg" , ".bmp"};
   up.setAllowFiles(fileType);
  
positive.code: <%@ page language="java" contentType="text/html; charset=utf-8"
           pageEncoding="utf-8"%>
      <%@ page import="java.util.Properties" %>
      <%@ page import="java.util.List" %>
      <%@ page import="java.util.Iterator" %>
      <%@ page import="java.util.Arrays" %>
      <%@ page import="java.io.FileInputStream" %>
      <%@ page import="ueditor.Uploader" %>
  
          <%
  
  request.setCharacterEncoding("utf-8");
  response.setCharacterEncoding("utf-8");
  
negative.code: 
  }
  
  Uploader up = new Uploader(request);
  
  //获取前端提交的path路径
  String dir = request.getParameter( "dir" );
  
  //普通请求中拿不到参数， 则从上传表单中拿
  if ( dir == null ) {
  	dir = up.getParameter("dir");
  }
  
  if ( dir == null || "".equals( dir ) ) {
  
  