java8 time包的简单使用

 import com.sun.org.apache.xml.internal.res.XMLErrorResources_tr;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoField;
import java.time.temporal.ChronoUnit;
public class Time {
    public static void main(String[] args) {
        //创建时间日期
        LocalDate date = LocalDate.of(2014, 3, 18);
        LocalDate today = LocalDate.now();
        LocalDate date1 = LocalDate.parse("2014-03-18");
        LocalTime time1 = LocalTime.parse("13:45:20");

        //获得属性
        int year = date.get(ChronoField.YEAR);
        int month = date.get(ChronoField.MONTH_OF_YEAR);
        int day = date.get(ChronoField.DAY_OF_MONTH);

        //修改属性
        date1 = LocalDate.of(2014, 3, 18);
        LocalDate date2 = date1.withYear(2011);
        LocalDate date3 = date2.withDayOfMonth(25);
        LocalDate date4 = date3.with(ChronoField.MONTH_OF_YEAR, 9);

        //修改属性
        date1 = LocalDate.of(2014, 3, 18);
        date2 = date1.plusWeeks(1);
        date3 = date2.minusYears(3);
        date4 = date3.plus(6, ChronoUnit.MONTHS);

        //格式化输出
        System.out.println(date.format(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
        System.out.println(date.format(DateTimeFormatter.ISO_DATE));
    }
}