转换一定格式日期Date类型的工具类

package com.hsx.date;import java.text.SimpleDateFormat;import java.util.Date;public class DateUtil {public static DateUtil dateUtil;private DateUtil() {}public static DateUtil getInstance() {if (dateUtil == null) {dateUtil = new DateUtil();}return dateUtil;}public String getYmdhmsFormat(Date date) {return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);}public String getYmdFormat(Date date) {return new SimpleDateFormat("yyyy-MM-dd").format(date);}public String getYmdhmFormat(Date date) {return new SimpleDateFormat("yyyy-MM-dd HH:mm").format(date);}}