public String replace(String content) {
    //将内容全部转换为半角
    if (StringUtils.isBlank(content)) {
        return null;
    }
    String result = content;
    List<String> replacementWordList = replacementWordService.getAllReplacementWordInfos();
    //替换词
    if (CollectionUtils.isNotEmpty(replacementWordList)) {
        for (ReplacementWordVo item : replacementWordList) {
            result = result.replace(item.getReplacedWord(), item.getReplacementWord());
        }
    }
    return result;
}