List items = upload.parseRequest(request);替空kindeditor SpringMvc

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="java.util.*,java.io.*" %><%@ page import="java.text.SimpleDateFormat" %><%@ page import="org.apache.commons.fileupload.*" %><%@ page import="org.apache.commons.fileupload.disk.*" %><%@ page import="org.apache.commons.fileupload.servlet.*" %><%@ page import="org.json.simple.*" %><%/** * KindEditor JSP *  * 本JSP程序是演示程序，建议不要直接在实际项目中使用。 * 如果您确定直接使用本程序，使用之前请仔细确认相关安全设置。 *  *///文件保存目录路径String savePath = pageContext.getServletContext().getRealPath("/") + "attached/";System.out.print(savePath);//文件保存目录URLString saveUrl  = request.getContextPath() + "/attached/";//定义允许上传的文件扩展名HashMap<String, String> extMap = new HashMap<String, String>();extMap.put("image", "gif,jpg,jpeg,png,bmp");extMap.put("flash", "swf,flv");extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");//最大文件大小long maxSize = 1000000;response.setContentType("text/html; charset=UTF-8");if(!ServletFileUpload.isMultipartContent(request)){    out.println(getError("请选择文件。"));    return;}//检查目录File uploadDir = new File(savePath);if(!uploadDir.isDirectory()){    out.println(getError("上传目录不存在。"));    return;}//检查目录写权限if(!uploadDir.canWrite()){    out.println(getError("上传目录没有写权限。"));    return;}String dirName = request.getParameter("dir");if (dirName == null) {    dirName = "image";}if(!extMap.containsKey(dirName)){    out.println(getError("目录名不正确。"));    return;}//创建文件夹savePath += dirName + "/";saveUrl += dirName + "/";File saveDirFile = new File(savePath);if (!saveDirFile.exists()) {    saveDirFile.mkdirs();}SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");String ymd = sdf.format(new Date());savePath += ymd + "/";saveUrl += ymd + "/";File dirFile = new File(savePath);if (!dirFile.exists()) {    dirFile.mkdirs();}FileItemFactory factory = new DiskFileItemFactory();ServletFileUpload upload = new ServletFileUpload(factory);upload.setHeaderEncoding("UTF-8");List items = upload.parseRequest(request);Iterator itr = items.iterator();while (itr.hasNext()) {    FileItem item = (FileItem) itr.next();    String fileName = item.getName();    long fileSize = item.getSize();    if (!item.isFormField()) {        //检查文件大小        if(item.getSize() > maxSize){            out.println(getError("上传文件大小超过限制。"));            return;        }        //检查扩展名        String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();        if(!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(fileExt)){            out.println(getError("上传文件扩展名是不允许的扩展名。\n只允许" + extMap.get(dirName) + "格式。"));            return;        }        SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");        String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;        try{            File uploadedFile = new File(savePath, newFileName);            item.write(uploadedFile);        }catch(Exception e){            out.println(getError("上传文件失败。"));            return;        }        JSONObject obj = new JSONObject();        obj.put("error", 0);        obj.put("url", saveUrl + newFileName);        out.println(obj.toJSONString());    }}%><%!private String getError(String message) {    JSONObject obj = new JSONObject();    obj.put("error", 1);    obj.put("message", message);    return obj.toJSONString();}%>