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 我只是试图将一个日期字符串转换成Java 8中的DateTime对象。运行以下行：

DateTimeFormatter formatter = DateTimeFormatter.ofPattern（yyyyMMdd）; LocalDateTime dt = LocalDateTime.parse（20140218，格式化程序）;

我收到以下错误：

线程main中的异常java.time.format.DateTimeParseException：无法解析文本'20140218'：无法从TemporalAccessor获取LocalDateTime： {}，ISO解析为2014-02-18类型为java.time.format.Parsed 在java.time.format.DateTimeFormatter.createError（DateTimeFormatter.java:1918）在java.time .format.DateTimeFormatter.parse（DateTimeFormatter.java:1853）在java.time.LocalDateTime.parse（LocalDateTime.java:492）

语法与建议相同这里，但我有一个例外。我正在使用 JDK-8u25 。

解决方案

不接受裸日期值作为DateTime。使用LocalDate而不是LocalDateTime解决问题：

DateTimeFormatter formatter = DateTimeFormatter.ofPattern（yyyyMMdd）; LocalDate dt = LocalDate.parse（20140218，格式化程序）;

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);

I get the following error:

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)

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

解决方案

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);