Long型转ZonedDateTime型

/**
 * 将Long类型转化成0
 * @author yk
 * @param time
 * @return
 */
public static ZonedDateTime toZonedDateTime(Long time){

public static final String LONG_DATE = "yyyy-MM-dd HH:mm:ss";

    SimpleDateFormat sdf = new SimpleDateFormat(LONG_DATE);
    Date createDate = new Date(time);
    String format = sdf.format(createDate);
    DateTimeFormatter beijingFormatter = DateTimeFormatter.ofPattern(LONG_DATE).withZone(ZoneId.of("Asia/Shanghai"));
    if(StringUtils.isBlank(format)){
        return null;
    }
    ZonedDateTime beijingDateTime = ZonedDateTime.parse(format, beijingFormatter);
    ZonedDateTime utc = beijingDateTime.withZoneSameInstant(ZoneId.of("UTC"));
    return utc;

}