时区的处理：
ZonedDate/ZonedTime/ZonedDateTime
package com.expgiga.Java8;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Set;
/**
* Java8时间日期格式化：DateTimeFormatter
*/
public class TestDateTimeFormatter {
public static void main(String[] args) {
DateTimeFormatter dtf = DateTimeFormatter.
ISO_DATE_TIME;
LocalDateTime ldt = LocalDateTime.
now();
String strDate = ldt.format(dtf);
System.
out.println(strDate);
DateTimeFormatter dtf2 = DateTimeFormatter.
ofPattern(
"yyyy年MM月dd日 HH:mm:ss");
String strDate2 = dtf2.format(ldt);
System.
out.println(strDate2);
LocalDateTime newDate = ldt.
parse(strDate2, dtf2);
System.
out.println(newDate);
//对时区的操作ZonedDate/ZonedTime/ZonedDateTime
Set<String> set = ZoneId.
getAvailableZoneIds();
set.forEach(System.
out::println);
LocalDateTime ldt3 = LocalDateTime.
now(ZoneId.
of(
"Europe/Tallinn"));
System.
out.println(ldt3);
LocalDateTime ldt4 = LocalDateTime.
now(ZoneId.
of(
"Asia/Shanghai"));
ZonedDateTime zdt = ldt4.atZone(ZoneId.
of(
"Asia/Shanghai"));
System.
out.println(zdt);
}
}
