类图如下: TimestampConverter+String convertToDate(long timestamp) 代码实现 下面是TimestampConverter类的代码实现,包含了转换秒为日期的主要逻辑: importjava.time.Instant;importjava.time.LocalDateTime;importjava.time.ZoneId;importjava.time.format.DateTimeFormatter;publicclassTimestampConverter{// 日期格式化器pri...
Learn to convert a given Instant to LocalDateTime, LocalDate, or LocalTime instances in the current system timezone or a specified timezone in Java. 1. Difference between Instant and LocalDateTime An Instant is an instantaneous point on the time-line without any timezone information associated wit...
public class InstantExample1 { public static void main(String[] argv) { // Parse a ISO 8601 Date directly //Instant instant = Instant.parse("2016-08-18T06:17:10.225Z"); Instant instant = Instant.now(); System.out.println("Instant : " + instant); //Convert instant to LocalDateTime, ...
InstantExample2.java packagecom.mkyong.date;importjava.time.*;publicclassInstantExample2{publicstaticvoidmain(String[] argv){// Hard code a date timeLocalDateTimedateTime=LocalDateTime.of(2016, Month.AUGUST,18,6,17,10); System.out.println("LocalDateTime : "+ dateTime);// Convert LocalDateTime to...
// Converts this Date object to an Instant. public Instant toInstant() { return Instant.ofEpochMilli(getTime()); } 这两个方法使我们可以方便的实现将旧的日期类转换为新的日期类,具体思路都是通过Instant当中介,然后通过Instant来创建LocalDateTime(这个类可以很容易获取LocalDate和LocalTime),新的日期类转...
Instant; import java.time.LocalDateTime; import java.time.ZoneId; import java.time.format.DateTimeFormatter; import java.util.Date; public class DateConvert { public static void main(String[] args) { System.out.println("---LocalDateTime转为String、TimeStamp、Long、Instant、Date---"); LocalDateTim...
DateFormat类 使用此类来时间初始化 我们发现,时间toLocalString 会有横线: vo.setSubmitDate(new Date().toLocaleString()); 可以改为: vo.setSubmitDate(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance(TimeZone.getTimeZone("GMT+08:00")).getTime())); ...
ZonedDateTimezdt=ZonedDateTime.now();Instantinstant=zdt.toInstant();//in UTC 4. Conclusion In this shortJava date-time tutorial, we learned to convert fromInstanttoZonedDateTimeand reverse by adjusting the zone offsets. Happy Learning !!
使用Java 8中的java.time包中的类(如Instant)来转换毫秒数为日期对象: Instant类可以表示一个时间戳,你可以使用Instant.ofEpochMilli方法将毫秒数转换为Instant对象。 格式化日期对象为所需的日期字符串表示形式: 你可以使用DateTimeFormatter来格式化Instant对象为所需的日期字符串。 输出或返回转换后的日期字符串: 最后...
(CST_TIME_PATTERN,Locale.US);Date usDate=simpleDateFormat.parse(date);returnDateUtil.getDateFormat(usDate,format);}publicstaticStringformatInstant(Instant instant,String format){LocalDateTime localDateTime=LocalDateTime.ofInstant(instant,ZoneId.systemDefault());returnlocalDateTime.format(DateTimeFormatter....