如何构造一个 ZonedDateTime()

2024-04-21T20:29:24 执行如下代码

ZonedDateTime.now());                          //2024-04-21T20:29:24.583240700+08:00[Asia/Shanghai]
ZonedDateTime.now(ZoneId.of("Asia/Tokyo")));   //2024-04-21T21:29:24.583240700+09:00[Asia/Tokyo]
ZonedDateTime.now(Clock.systemUTC()));         //2024-04-21T12:29:24.583240700Z

ZonedDateTime.of(2019, 7, 7, 20, 18, 18, 888, ZoneId.of("Asia/Tokyo"));                             //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]
ZonedDateTime.of(LocalDate.of(2019, 7, 7), LocalTime.of(20, 18, 18, 888), ZoneId.of("Asia/Tokyo")); //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]

LocalDateTime local_date_time = LocalDateTime.of(2019, 7, 7, 20, 18, 18, 888);
ZonedDateTime.of(local_date_time, ZoneId.of("Asia/Tokyo"));                                        //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]
ZonedDateTime.of(local_date_time, ZoneId.of("Asia/Shanghai"));                                     //2019-07-07T20:18:18.000000888+08:00[Asia/Shanghai]

Instant instant = LocalDateTime.of(2019, 7, 7, 20, 18, 18, 888).toInstant(ZoneOffset.ofHours(9));
ZonedDateTime.ofInstant(instant , ZoneOffset.ofHours(9)));       //2019-07-07T20:18:18.000000888+09:00
ZonedDateTime.ofInstant(instant , ZoneId.of("Asia/Tokyo")));     //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]
ZonedDateTime.ofInstant(instant , ZoneId.of("Asia/Shanghai")));  //2019-07-07T19:18:18.000000888+08:00[Asia/Shanghai]

LocalDateTime local_date_time = LocalDateTime.of(2019, 7, 7, 20, 18, 18, 888);
ZonedDateTime.ofInstant(local_date_time, ZoneOffset.ofHours(9), ZoneOffset.ofHours(9)));                 //2019-07-07T20:18:18.000000888+09:00
ZonedDateTime.ofInstant(local_date_time, ZoneOffset.UTC, ZoneOffset.ofHours(9)));                        //2019-07-08T05:18:18.000000888+09:00
ZonedDateTime.ofInstant(local_date_time, ZoneOffset.ofHours(9), ZoneId.of("Asia/Shanghai")));            //2019-07-07T19:18:18.000000888+08:00[Asia/Shanghai]

ZonedDateTime.parse("2019-07-07T20:18:18.000000888+09:00")); //2019-07-07T20:18:18.000000888+09:00
ZonedDateTime.parse("2019-07-07T20:18:18+09:00"));           //2019-07-07T20:18:18+09:00
ZonedDateTime.parse("2019-07-07T20:18+09:00"));              //2019-07-07T20:18+09:00

ZonedDateTime.parse("Sun Oct 01 00:00:00 EDT 2017", DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy").withLocale(Locale.US)));                  
// 2017-10-01T00:00-04:00[America/New_York]

ZonedDateTime.parse("Sun Oct 01 00:00:00 EDT 2017 GMT+0800", DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy 'GMT'Z").withLocale(Locale.US)));  
// 2017-09-30T12:00-04:00[America/New_York]

LocalDateTime local_date_time = LocalDateTime.of(2019, 7, 7, 20, 18, 18, 888);

ZonedDateTime zonedDateTime = local_date_time.atZone(ZoneId.of("Asia/Tokyo")););    //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]    【附上时区而已不换算】
ZonedDateTime zonedDateTime = local_date_time.atZone(ZoneId.of("Asia/Shanghai"));); //2019-07-07T20:18:18.000000888+08:00[Asia/Shanghai] 【附上时区而已不换算】

OffsetDateTime offset_date_time = OffsetDateTime.of(2019, 7, 7, 20, 18, 18, 888, ZoneOffset.ofHours(9));

offset_date_time.toZonedDateTime());    //2019-07-07T20:18:18.000000888+09:00    【时区和偏移量转换而已】

offset_date_time.atZoneSameInstant(ZoneId.of("Asia/Tokyo")));     //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]                  【存在时区转换】
offset_date_time.atZoneSameInstant(ZoneId.of("Asia/Shanghai")));  //2019-07-07T19:18:18.000000888+08:00[Asia/Shanghai]               【存在时区转换】

offset_date_time.atZoneSimilarLocal(ZoneId.of("Asia/Tokyo")));    //2019-07-07T20:18:18.000000888+09:00[Asia/Tokyo]                 【附上时区而已不换算】
offset_date_time.atZoneSimilarLocal(ZoneId.of("Asia/Shanghai"))); //2019-07-07T20:18:18.000000888+08:00[Asia/Shanghai]              【附上时区而已不换算】

Date DATE = new Date(1562501898000L);

DATE.toInstant().atZone(ZonedDateTime.now().getZone()));   //2019-07-07T20:18:18+08:00[Asia/Shanghai]
DATE.toInstant().atZone(ZonedDateTime.now().getOffset())); //2019-07-07T20:18:18+08:00