String[] queryStrings = { "title:test", "content:\"quoted value\"", "field:value AND other:value", "field:value OR other:value",
                "field:[1 TO 100]", "field:value*", "field:?value", "field:~value", "field:value^2", "タイトル:テスト", "标题:测试", "제목:테스트" };

        for (String queryString : queryStrings) {
            String encoded = BaseEncoding.base64().encode(queryString.getBytes(StandardCharsets.UTF_8));

                this.queryString = queryString.substring(ALLINURL_FIELD_PREFIX.length());
            } else if (queryString.startsWith(ALLINTITLE_FIELD_PREFIX)) {
                defaultField = ComponentUtil.getFessConfig().getIndexFieldTitle();
                this.queryString = queryString.substring(ALLINTITLE_FIELD_PREFIX.length());
            } else {
                this.queryString = queryString;
            }
        } else {

    protected Map<String, String[]> getParameterMapFromQueryString(final HttpServletRequest request, final String enc) throws IOException {
        final String queryString = request.getQueryString();
        if (StringUtil.isNotBlank(queryString)) {
            return parseQueryString(queryString, enc);
        }
        return Collections.emptyMap();
    }

    /**
     * Parses a query string and extracts parameter name-value pairs.