<label for="elevateWordFile" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.elevate_word_file"/></th></label>
                                    <div class="col-sm-9">
                                        <input type="file" id="elevateWordFile" name="elevateWordFile" class="form-control-file"/>
                                    </div>

import org.lastaflute.web.validation.Required;

/**
 * @author codelibs
 * @author Keiichi Watanabe
 */
public class UploadForm {

    @Required
    public MultipartFormFile elevateWordFile;

        validateApi(body, messages -> {});
        CommonPoolUtil.execute(() -> {
            try (Reader reader = new BufferedReader(new InputStreamReader(body.elevateWordFile.getInputStream(), getCsvEncoding()))) {
                elevateWordService.importCsv(reader);
                suggestHelper.storeAllElevateWords(false);
            } catch (final Exception e) {