LocalDate localDate = LocalDate.parse("2019-01-04");
//Beginning of the day
LocalDateTime localDateTime1 = localDate.atStartOfDay();
System.out.println(localDateTime1);
使用当前时间
//Current time
LocalDateTime localDateTime2 = localDate.atTime(LocalTime.now());
System.out.println(localDateTime2);
或添加 12:00:0 和
//Specific time
LocalDateTime localDateTime3 = localDate.atTime(12, 12, 0);
System.out.println(localDateTime3);
LocalDate localDate = LocalDate.parse("2019-01-04");
//Beginning of the day
LocalDateTime localDateTime1 = localDate.atStartOfDay();
System.out.println(localDateTime1);
Use the current time with
//Current time
LocalDateTime localDateTime2 = localDate.atTime(LocalTime.now());
System.out.println(localDateTime2);
Or add the 12:00:0 with
//Specific time
LocalDateTime localDateTime3 = localDate.atTime(12, 12, 0);
System.out.println(localDateTime3);
发布评论
评论（2）
yyyy-MM-dd实际上是一个LocalDate。您想要做的是将其转换为LocalDateTime。来自 howtodoinjava.com
您可以将时间设置为
00:00和使用当前时间
或添加
12:00:0和请注意，您始终需要第一行代码
来格式化您的
LocalDateTime的具体方式是使用DateTimeFormatter。例如：yyyy-MM-ddis effectively a LocalDate. What you're trying to do is convert it to LocalDateTime.From howtodoinjava.com
You could either set the time to
00:00withUse the current time with
Or add the
12:00:0withNote that you always need the first line of code
To format your
LocalDateTimein a specific way, useDateTimeFormatter. For example:您可以通过使用以下函数来实现：
myDateTime将输出：2022-03-15T12:00:12You can achieve that by using the following function:
and
myDateTimewill output:2022-03-15T12:00:12