java 对时间date处理

@Test
public void testTime(){
    Date date =new Date();
    System.out.println(date);
    Instant instant = date.toInstant();
    ZoneId zone = ZoneId.systemDefault();
    LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
    LocalTime localTime = localDateTime.toLocalTime();
    System.out.println(localTime.plusHours(-1));
    System.out.println(localTime.getClass());

}

 

对于实体类对时间处理，可以定义

@DateTimeFormat(pattern = "yyyy-MM-dd")
@JsonFormat(pattern = "yyyy-MM-dd",timezone="GMT+8")
private Date createddate;