JAVA中字符串转下划线

最新推荐文章于 2023-10-05 10:29:59 发布

原创最新推荐文章于 2023-10-05 10:29:59 发布 · 1k 阅读

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    public static void main(String[] args) {
        ArrayList<String> strings = CollUtil.newArrayList("id", "create_user", "create_date", "update_user", "update_date");
        strings.forEach(str -> {
            System.out.println("private String " + lineToHump(str) + ";");
        });

    }

    private static Pattern linePattern = Pattern.compile("_(\\w)");

    /**
     * 下划线转驼峰
     */
    public static String lineToHump(String str) {
        str = str.toLowerCase();
        Matcher matcher = linePattern.matcher(str);
        StringBuffer sb = new StringBuffer();
        while (matcher.find()) {
            matcher.appendReplacement(sb, matcher.group(1).toUpperCase());
        }
        matcher.appendTail(sb);
        return sb.toString();
    }