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

import org.lastaflute.web.validation.Required;

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

    @Required
    public MultipartFormFile badWordFile;

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