/** * 校驗時間格式為2018-01-02 * @param time * @return */ public boolean validationTimeFormat(String time) { boolean bool = false; Pattern pattern = Pattern.compile("[0-9]*"); if(time != null && time.length() == 10) { //校驗前四位是否為數字 if(pattern.matcher(time.substring(0, 4)).matches()) { //校驗第五位是- if("-".indexOf(time.substring(4, 5))!=-1) { //校驗第6,7位是否為數字 if(pattern.matcher(time.substring(5,7)).matches()) { //校驗第8位是否為- if("-".indexOf(time.substring(7, 8))!=-1) { //校驗第9,10位是否為數字 if(pattern.matcher(time.substring(8, 10)).matches()) { bool = true; } } } } } } return bool; }
注釋:負數正則表達“^-?[0-9]+”,所有數字正則表達式“-?[0-9]+.?[0-9]+”
