java8 时区

 private static void test7(){
        //获取所有时区的枚举值
        Set<String> zoneIdSet= ZoneId.getAvailableZoneIds();
        zoneIdSet.forEach(System.out::println);
    }

  private static void test8(){
        //北京时间
        LocalDateTime ldt=LocalDateTime.now(ZoneId.of("Asia/Shanghai"));
        System.out.println(ldt);//2017-11-04T15:11:57.313
        ZonedDateTime zdt= ldt.atZone(ZoneId.of("Asia/Shanghai"));
        System.out.println(zdt);//2017-11-04T15:11:57.313+08:00[Asia/Shanghai]

        //东京时间
        LocalDateTime ldt_tokyo=LocalDateTime.now(ZoneId.of("Asia/Tokyo"));
        System.out.println(ldt_tokyo);//2017-11-04T16:11:57.315
        ZonedDateTime zdt_tokyo= ldt.atZone(ZoneId.of("Asia/Tokyo"));
        System.out.println(zdt_tokyo);//2017-11-04T15:11:57.313+09:00[Asia/Tokyo]
    }