解析 LocalDateTime (Java 8) 时无法从 TemporalAccessor 获取 LocalDateTime

本文介绍了解析 LocalDateTime (Java 8) 时无法从 TemporalAccessor 获取 LocalDateTime的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我只是想在 Java 8 中将日期字符串转换为 DateTime 对象.运行以下几行:

I am simply trying to convert a date string into a DateTime object in Java 8. Upon running the following lines:

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd"); LocalDateTime dt = LocalDateTime.parse("20140218", formatter);

我收到以下错误:

Exception in thread "main" java.time.format.DateTimeParseException: Text '20140218' could not be parsed: Unable to obtain LocalDateTime from TemporalAccessor: {},ISO resolved to 2014-02-18 of type java.time.format.Parsed at java.time.format.DateTimeFormatter.createError(DateTimeFormatter.java:1918) at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1853) at java.time.LocalDateTime.parse(LocalDateTime.java:492)

语法与此处的建议相同，但我得到了一个例外.我正在使用 JDK-8u25.

The syntax is identical to what has been suggested here, yet I am served with an exception. I am using JDK-8u25.

推荐答案

事实证明 Java 不接受一个裸 Date 值作为 DateTime.使用 LocalDate 而不是 LocalDateTime 解决了这个问题:

It turns out Java does not accept a bare Date value as DateTime. Using LocalDate instead of LocalDateTime solves the issue:

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd"); LocalDate dt = LocalDate.parse("20140218", formatter);