根据时间段【2020-11-20 09:09:09,2021-10-09 10:10:10】先转换为【2020-11-20 00:00:00,2021-10-09 59:59:59】 再根据转换时间把里面的每一天的开始时间和结束时间获取出来 java
时间: 2023-12-03 20:43:34 浏览: 30
可以使用 Java 中的 LocalDateTime 类来处理时间。
首先,我们需要将给定的时间段转换为 LocalDateTime 对象:
```java
LocalDateTime start = LocalDateTime.of(2020, 11, 20, 0, 0, 0);
LocalDateTime end = LocalDateTime.of(2021, 10, 9, 23, 59, 59);
```
这里将结束时间设置为 23:59:59 是因为我们想要包含该日期的所有时间。
接下来,我们可以使用一个循环来遍历时间段中的每一天,并获取该天的开始时间和结束时间:
```java
LocalDateTime current = start;
while (!current.isAfter(end)) {
LocalDateTime dayStart = current.withHour(0).withMinute(0).withSecond(0).withNano(0);
LocalDateTime dayEnd = current.withHour(23).withMinute(59).withSecond(59).withNano(999999999);
System.out.println("Day " + current.toLocalDate() + " starts at " + dayStart + " and ends at " + dayEnd);
current = current.plusDays(1);
}
```
这里,我们使用 `withHour`、`withMinute`、`withSecond` 和 `withNano` 方法来设置每天的开始时间和结束时间。然后,我们可以使用 `plusDays` 方法来增加 `current` 对象的日期,以便遍历整个时间段。
完整代码如下:
```java
import java.time.LocalDateTime;
public class Main {
public static void main(String[] args) {
LocalDateTime start = LocalDateTime.of(2020, 11, 20, 0, 0, 0);
LocalDateTime end = LocalDateTime.of(2021, 10, 9, 23, 59, 59);
LocalDateTime current = start;
while (!current.isAfter(end)) {
LocalDateTime dayStart = current.withHour(0).withMinute(0).withSecond(0).withNano(0);
LocalDateTime dayEnd = current.withHour(23).withMinute(59).withSecond(59).withNano(999999999);
System.out.println("Day " + current.toLocalDate() + " starts at " + dayStart + " and ends at " + dayEnd);
current = current.plusDays(1);
}
}
}
```
输出结果如下:
```
Day 2020-11-20 starts at 2020-11-20T00:00 and ends at 2020-11-20T23:59:59.999999999
Day 2020-11-21 starts at 2020-11-21T00:00 and ends at 2020-11-21T23:59:59.999999999
Day 2020-11-22 starts at 2020-11-22T00:00 and ends at 2020-11-22T23:59:59.999999999
...
Day 2021-10-07 starts at 2021-10-07T00:00 and ends at 2021-10-07T23:59:59.999999999
Day 2021-10-08 starts at 2021-10-08T00:00 and ends at 2021-10-08T23:59:59.999999999
Day 2021-10-09 starts at 2021-10-09T00:00 and ends at 2021-10-09T23:59:59.999999999
```