Java SimpleDateFormat 总是返回一月 [英] Java SimpleDateFormat always returning January for Month

问题描述

我正在从 Active Directory 获取日期值 (createWhen)，并将其转换为 Java 日期，以便获取在两个日期之间创建的帐户列表.一切正常，除了一种方法:我从 AD 日期到 Java 日期的方法.该方法如下所示:

I'm working on taking a date value (createWhen) from Active Directory, and translating it into a Java date, for the purposes of getting a list of accounts created between two dates. Everything is working fine, save for one method: the method where I go from the AD Date to the Java date. The method looks like this:

private Date getParsedDate(String givenString) {
    System.out.println("Value from AD is: " + givenString);
    Date parsedDate = null;
    String formattedString = this.formatDateString(givenString);
    System.out.println("Formatted String is: " + formattedString);
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/DD");
    try {
        parsedDate = sdf.parse(formattedString);
        System.out.println("Final date string is: " + parsedDate.toString());
    } catch (ParseException ex) {
        ex.printStackTrace();
    }
    return parsedDate;
}

而且，对于来自 AD 的单个任意数据:

And, for a single piece of arbitrary data from AD:

来自 AD 的值是:20050912190509.0Z

格式化字符串为:2005/09/12

最终日期字符串是:Wed Jan 12 00:00:00 EST 2005

显然，它正确地获取了日期和年份(如果我选择包括小时/分钟/秒，它也会正确地包括这些)，但是每个日期都被放置在 1 月某种原因.

Obviously, it's picking up the day and year correctly (and if I choose to include hours/minutes/seconds it includes those correctly as well), but every single date is being placed in January for some reason.

现在，我确定我的错误很简单，但我已经重新检查了大约十次格式，现在我已经看不到它了.第二双眼睛是否有希望查看我的代码并指出我哪里出错了，月份如此严重不正确?

Now, I'm sure that my error is a pretty simple one, but I've rechecked my formatting about ten times, and I'm at the point where I just can't see it any more. Can a second pair of eyes hopefully look over my code and point out where I'm going wrong to get the month so grossly incorrect?

谢谢.

推荐答案

将模式字符串从yyyy/MM/DD"改为yyyy/MM/dd"

Change the pattern string from "yyyy/MM/DD" to "yyyy/MM/dd"

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

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