LocalDateTime 時間格式

LocalDate.now() 當天日期 //2020-01-10
LocalTime.now() 當前時間 //07:53:40.507

  LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")) //2020-01-10 07:53:40

LocalDateTime.parse(LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")),DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")) //2020-01-10T07:53:40