如何在JodaTime中将yyyymmdd格式的字符串转换为LocalDate [英] How to convert a String of format yyyymmdd to LocalDate in JodaTime

问题描述

我有一个字符串，格式为"20140518".如何将其转换为LocalDate对象

I have a String in the form "20140518". How to convert it into LocalDate object

我尝试过

this.todayDate = new LocalDate(val);
System.out.println(todayDate.toString("yyyy-mm-dd"))

当我尝试将其转储到标准输出时，它会像20140518-junk-junk一样转储.它转储了一个垃圾字符串.我以为它会像2014-05-18那样丢弃.

When I try dumping this to standard output it dumps like 20140518-junk-junk. That it dumps a garbage string . I thought it would dump like 2014-05-18.

推荐答案

使用表示月的MM而不是表示分钟的mm.

Use MM that represents Month instead of mm that represents minutes.

使用LocalDate.parse()而不是new LocalDate()来构造LocalDate对象.

Use LocalDate.parse() instead of new LocalDate() to construct the LocalDate object.

DateTimeFormatter format = org.joda.time.format.DateTimeFormat.forPattern("yyyyMMdd");
LocalDate lDate = org.joda.time.LocalDate.parse("20140518", format);
System.out.println(lDate);

输出:

2014-05-18

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org.joda.time. LocalDate#toString()默认使用yyyy-MM-dd模式.

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org.joda.time.LocalDate#toString() be default uses yyyy-MM-dd pattern.

您不需要使用todayDate.toString("yyyy-MM-dd").

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