使用DateTimeFormatter类的parseBest（）方法

/** 时 代 J a v a 公 众 号 - nowjava.com 提 供 **/

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.OffsetDateTime;

import java.time.format.DateTimeFormatter;

import java.time.format.DateTimeParseException;

import java.time.temporal.TemporalAccessor;


public class Main {

  public static void main(String[] args) {

    DateTimeFormatter parser = DateTimeFormatter.ofPattern("yyyy-MM-dd['T'HH:mm:ss[Z]]");

    parseStr(parser, "2019-05-31");

    parseStr(parser, "2019-05-31T16:30:12");

    parseStr(parser, "2019-05-31T16:30:12-0500");

    parseStr(parser, "2019-05-31Hello");

  }


  public static void parseStr(DateTimeFormatter formatter, String text) {

    try {

      TemporalAccessor ta = formatter.parseBest(text, 

                                                OffsetDateTime::from, 

                                                LocalDateTime::from, 

                                                LocalDate::from);// 来自 时 代 J     a    v  a - nowjava.com

      if (ta instanceof OffsetDateTime) {

        OffsetDateTime odt = OffsetDateTime.from(ta);

        System.out.println("OffsetDateTime: " + odt);

      } else if (ta instanceof LocalDateTime) {

        LocalDateTime ldt = LocalDateTime.from(ta);

        System.out.println("LocalDateTime: " + ldt);

      } else if (ta instanceof LocalDate) {