从SimpleTimeZone获取ZoneId

这里我喜欢的解决方案是因为它很简单，但是您需要一个Date和一个TimeZone作为参数来检索ZoneId

private ZoneId getZoneOffsetFor(final Date date, final TimeZone timeZone){  int offsetInMillis = getOffsetInMillis(date, timeZone);  return ZoneOffset.ofTotalSeconds( offsetInMillis / 1000 );}private int getOffsetInMillis(final Date date, final TimeZone timeZone){  int offsetInMillis = timeZone.getRawOffset();  if(timeZone.inDaylightTime(date)){     offsetInMillis += timeZone.getDSTSavings();  }  return offsetInMillis;}