DateFormatUtil.java
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package com.subsidy.util;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Date;
/**
* 处理时间工具
*
* @author DengMin
* @date 2019/08/27 13:56
**/
public class DateFormatUtil {
public final static String YEAR = "yyyy";
public final static String FMT_sdf14_L = "yyyy-MM-dd HH:mm:ss";
public final static String FMT_sdf_yMd = "yyyy-MM-dd";
public final static String FMT_sdf_yM = "yyyy-M";
public final static String FMT_sdf_yMM = "yyyy-MM";
public final static String FMT_sdf_Hm = "H:mm";
public final static String FMT_sdf_HHmm = "HH:mm";
public final static String cron = "s m H d M ? yyyy";
/**
* Date转String,自定义格式
* @param date
* @param pattern
* @return
*/
public static String format(Date date, String pattern) {
try {
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
return sdf.format(date);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* String转Date,自定义格式
* @param date
* @param pattern
* @return
*/
public static Date parse(String date, String pattern) {
try {
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
return sdf.parse(date);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 比较两个时间
* .after 大于
* .before 小于
* @param d1
* @param d2
* @return
*/
public static boolean compare(Date d1, Date d2 ) {
return !d1.after(d2);
}
/**
* Data转Cron
* @param date
* @return
*/
public static String getCron(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat("s m H d M ? yyyy");
return sdf.format(date);
}
public static Date localDateTimeToDate(LocalDateTime dateTime) {
if(dateTime == null) {
return null;
}
ZoneId zoneId = ZoneId.systemDefault();
ZonedDateTime zdt = dateTime.atZone(zoneId);
return Date.from(zdt.toInstant());
}
}