DateUtil.java

package com.viontech.keliu.utils;

import org.springframework.util.StringUtils;

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Date;

public class DateUtil {
    private static final DateTimeFormatter YYYYMMDD_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd").withZone(ZoneId.of("Asia/Shanghai"));
    private static final DateTimeFormatter YYYYMMDDHHMM_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm").withZone(ZoneId.of("Asia/Shanghai"));

    /**
     *
     * @param dateTime
     * @return 返回日期格式： yyyy-MM-dd
     */
    public static String formatYYYYMMDD(LocalDateTime dateTime) {
        if (null == dateTime) {
            return null;
        }
        return dateTime.format(YYYYMMDD_FORMATTER);
    }

    /**
     *
     * @param dateTime
     * @return 返回日期格式： yyyy-MM-dd HH:mm
     */
    public static String formatYYYYMMDDHHMM(LocalDateTime dateTime) {
        if (null == dateTime) {
            return null;
        }
        return dateTime.format(YYYYMMDDHHMM_FORMATTER);
    }

    /**
     * 通用日期格式化
     * @param date
     * @param format
     * @return
     */
    public static String format(Date date, String format) {
        if (null == date || StringUtils.isEmpty(format)) {
            return null;
        }
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        return sdf.format(date);
    }
}