<el-upload
                    drag
                    :multiple="true"
                    :limit="10"
                    :auto-upload="false"
                    :file-list="fileList"
                    ref="fileUpload"
                >
                    <i class="el-icon-upload"></i>
                    <div class="el-upload__text">
                        將文件拖到此處，或<em>點擊上傳</em>
                    </div>
                    <div class="el-upload__tip" slot="tip">
                        只能上傳{{ fileExt }}文件，且不超過{{ getFileSize() }}
                    </div>
                </el-upload>

        submitFile() {
            const formData = new FormData();
            formData.append("bizType", this.bizType);
            /**
             * 所有選擇的文件，放到FormData對象中上傳
             * fileName[] 屬性名根據(jù)自身情況定義
             */
            this.fileList.map(file => {
                formData.append("file", file.raw);
            });
            this.$http.post("/mom/sopFile/upload", formData)
              .then(res => {
                 if (res && res.isSuccess) {
                    console.log("上傳成功");
                  } else {
                     console.log(res.msg);
                  }
            });
        },

    @PostMapping(value = "/upload", headers = "content-type=multipart/form-data")
    @SysLog("上傳附件")
    @ResponseBody
    public R<Boolean> upload(@RequestParam(value = "file") List<MultipartFile> files,
                             @Validated SopFileUploadVO fileUploadVO) {
        // 忽略路徑字段,只處理文件類型
        if (files.size() < 1) {
            return R.fail("請上傳有效文件");
        }
        for (MultipartFile file : files) {
            //在這里編寫上傳代碼
        }
        return R.success(true);
    }