解析 LocalDateTime (Java 8) 时无法从 TemporalAccessor 获取 LocalDateTime [英] Unable to obtain LocalDateTime from TemporalAccessor when parsing LocalDateTime (Java 8)

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);

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