2017高大上文件异步上传系统

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需求：没有ftp上传文件，只能写一个file的input标签上传了，不过是用ajaxupload.js异步上传的，暂时无法一个实现一个input上传多个文件。

代码：
前端：

<p><label class="large green button" for="uploadFile" style="cursor: pointer;">上传</label><input type="file" id="uploadFile" name="uploadFile" style="position:absolute;clip:rect(0 0 0 0);"onchange="saveFile('uploadFile')"></p><script src="${basePath}/resource/js/jquery-1.10.1.min.js"></script>
<script src="${basePath}/resource/js/layer/layer.js"></script>
<script src="${basePath}/resource/js/file/ajaxfileupload.js"></script>
<script src="${basePath}/resource/js/file/uploadFile.js"></script>

后端：

String originalFileName = null;CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());if (multipartResolver.isMultipart(request)) {MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;Iterator<String> iter = multiRequest.getFileNames();while (iter.hasNext()) {MultipartFile file = multiRequest.getFile(iter.next());if (!file.isEmpty()) {originalFileName = file.getOriginalFilename(); //原文件名yhLog("开始上传"+originalFileName+"文件,时间为：" + _timeUtil.getNowDateStr());String suffixString = originalFileName.substring(originalFileName.lastIndexOf(".") + 1);String suffixType = _fileUtil.getTypeBySuffixName(suffixString);String fileName = originalFileName;String uploadUrl = request.getSession().getServletContext().getRealPath("/") + "/" + suffixType;File dir = new File(uploadUrl);if (!dir.exists()) {dir.mkdirs();}File targetFile = new File(uploadUrl + fileName);if (!targetFile.exists()) {try {targetFile.createNewFile();} catch (IOException e) {yhErLog("创建"+originalFileName+"文件失败",e);}try {file.transferTo(targetFile);} catch (IllegalStateException e) {yhErLog("客户端响应结束",e);} catch (IOException e) {yhErLog("读写数据异常",e);}}}request.setCharacterEncoding("UTF-8");response.setContentType("text/html; charset=UTF-8");}}yhLog("结束上传"+originalFileName+"文件,时间为：" + _timeUtil.getNowDateStr());