DateUtils.java
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package top.panll.assist.utils;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Locale;
public class DateUtils {
public static final String PATTERNForDateTime = "yyyy-MM-dd HH:mm:ss";
public static final String PATTERNForDate = "yyyy-MM-dd";
public static final String zoneStr = "Asia/Shanghai";
// 获得某天最大时间 2020-02-19 23:59:59
public static Date getEndOfDay(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());;
LocalDateTime endOfDay = localDateTime.with(LocalTime.MAX);
return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
// 获得某天最小时间 2020-02-17 00:00:00
public static Date getStartOfDay(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());
LocalDateTime startOfDay = localDateTime.with(LocalTime.MIN);
return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
public static String getDateStr(Date date) {
SimpleDateFormat formatter = new SimpleDateFormat(PATTERNForDate);
return formatter.format(date);
}
public static String getDateTimeStr(Date date) {
SimpleDateFormat formatter = new SimpleDateFormat(PATTERNForDateTime);
return formatter.format(date);
}
}