java将yyyyMMddHHmmss格式转换为yyyy-MM-dd HH:mm:ss

public static void main(String[] args) { String date = "20151101095440"; String reg = "(\\d{4})(\\d{2})(\\d{2})(\\d{2})(\\d{2})(\\d{2})"; date = date.replaceAll(reg, "$1-$2-$3 $4:$5:$6"); System.out.println(date); }