public class HumpLineUtil { private static Pattern humpPattern = Pattern.compile("[A-Z]"); private static Pattern linePattern = Pattern.compile("(_)(\\w)"); /** * 驼峰转下划线 * @param str * @return */ public static String humpToLine2(String str){ Matcher matcher = humpPattern.matcher(str); StringBuffer sb = new StringBuffer(); while(matcher.find()){ matcher.appendReplacement(sb, "_"+matcher.group(0).toLowerCase()); } matcher.appendTail(sb); return sb.toString(); } public static String humpToLine(String str){ return str.replaceAll("[A-Z]", "_$0").toLowerCase(); } /** * 下划线转驼峰 * @param str * @return */ 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(2).toUpperCase()); } matcher.appendTail(sb); return sb.toString(); } public static void main(String[] args) { String str="p_arentUuid"; str= lineToHump(str); System.out.println(str); } }
驼峰和下划线互转
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转载自turbosky.iteye.com/blog/2319878
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