Date与LocalDate,LocalDateTime 之间的转换工具类

青旅半醒 2022-04-02 09:42 217阅读 0赞

package com.libstar.lsp.find.utils;
    
    import java.time.Instant;
    import java.time.LocalDate;
    import java.time.LocalDateTime;
    import java.time.ZoneId;
    import java.time.ZonedDateTime;
    import java.util.Date;
    
    /** * @author lzg * @create 2018-12-25 18:38 **/
    public class LocalDateUtil { 
    
        /** * LocalDate转Date * @param localDate * @return */
        public static Date localDate2Date(LocalDate localDate) { 
            if (null == localDate) { 
                return null;
            }
            ZonedDateTime zonedDateTime = localDate.atStartOfDay(ZoneId.systemDefault());
            return Date.from(zonedDateTime.toInstant());
    
        }
    
        /** * Date转LocalDate * @param date */
        public static LocalDate date2LocalDate(Date date) { 
            if (null == date) { 
                return null;
            }
            return date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
    
        }
    
        /** * Date转换为LocalDateTime * @param date */
        public static LocalDateTime date2LocalDateTime(Date date){ 
            Instant instant = date.toInstant();
            ZoneId zoneId = ZoneId.systemDefault();
            LocalDateTime localDateTime = instant.atZone(zoneId).toLocalDateTime();
          return localDateTime;
        }
    
        /** * LocalDateTime转换为Date * @param localDateTime */
        public static Date localDateTime2Date( LocalDateTime localDateTime){ 
            ZoneId zoneId = ZoneId.systemDefault();
            ZonedDateTime zdt = localDateTime.atZone(zoneId);
            Date date = Date.from(zdt.toInstant());
           return date;
        }
        
    }