上传文件夹，后台获取里面的文件；批量上传文件夹中的图片

function getImpImageTpl() {
        var tpl = '<div style="padding: 10px;">' +
            '<form id="impForm" action="<%=basePath%>commericalPart/importModelPart" method="POST" enctype="multipart/form-data" target="impFrame">' +
            '<iframe name="impFrame" style="display: none;"></iframe>' +
            '<table id="impTable" class="table">' +
            '<tr>' +
            '<td>选择文件：</td>' +
            '<td><input type="file" name="file" multiple="multiple" webkitdirectory></td>' +
            '</tr>' +
            '<tr>' +
            '<td>导入配件图片的目录</td>' +
            '<td><input type="text" name="imagePath"   ></td>' +
            '</tr>' +
            '<tr>' +
            '<td></td>' +
            '<td><input type="button" value="开始导入" class="btn btn-primary" id="submitForm" onclick="doStartImpImage();" ></td>' +
            '</tr>' +
            '</table>' +
            '</form>' +
            '</div>';
        return tpl;
    }

 /**
     * 导入配件图片
     * @return
     */
    @RequestMapping("/importPartImage")
    @ResponseBody
    public Object importPartImage(@RequestParam("file") List<MultipartFile> file,String imagePath){
        Map<String,Object> map = new HashMap<String, Object>();
        String filePath = "E:/lazyli/image/part/" + imagePath+"/";
        File file2 = new File(filePath);
        if(!file2.exists()){
            file2.mkdirs();
        }
        OutputStream os = null;
        String exceptionImage = "";
        try{
            for(MultipartFile file1 : file){
                //图片的原始名称
                String oriName = file1.getOriginalFilename();
                exceptionImage = oriName;
                String filePath2 = filePath+oriName;
                File file3 = new File(filePath2);
                if(file3.exists()){
                    System.out.println("已存在图片，无需写入磁盘中");
                    continue;
                }
                System.out.println("没有存在，将图片存放到磁盘中");
                os = new FileOutputStream(filePath2);
                os.write(file1.getBytes());
            }
            map.put("success",true);
            System.out.println("图片存放磁盘目录:"+imagePath);
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false );
            map.put("exceptionImage", exceptionImage);
        }

        return map;
    }