Calendar.getInstance 方法未加载用户定义的区域设置类

发布于 2024-10-10 02:13:06 字数 1088 浏览 1 评论 0原文

在 JDK 6 中，

我已经为语言环境（en，AT）实现了 CalendarData_en_AT 类，这是用户定义的语言环境（未在 jre 中定义）。我看到，当我尝试使用 Calendar.getInstance() 方法加载语言环境时，它会加载 CalendarData_en.class

进一步调试时，我发现它仅选取以下语言环境：在 LocaleMetaDataInfo 类中指定

需要做什么，以便当我们调用 Calendar.getInstance(new Locale(en, AT)) 时它会加载 CalendarData_en_AT.class< /code>

代码如下：

我有一个类 CalendarData_en_AT.java

public class CalendarData_en_AT extends LocaleNamesBundle{

    public CalendarData_en_AT(){
    }

    protected final Object[][] getContents(){
        return
            new Object[][] { 
                new Object[] { "firstDayOfWeek", "2" },
                new Object[] { "minimalDaysInFirstWeek", "4" }
            };
    }
}

已编译的类包含在 .jar 文件中，并已放置在 jre/lib/ext 中

现在，

如果我调用 Calendar.getInstance(new Locale("en","AT")).getFirstDayOfWeek()

它应该返回 2，但现在它返回 1，原因是它加载 CalendarData_en.class 由用户实现的 CalendarData_en_AT.class 提供

原文

In JDK 6

I have implemented CalendarData_en_AT class for locale(en, AT) which is a user defined locale(not defined in jre). I see that when I try to load the locale using Calendar.getInstance() method it loads CalendarData_en.class

When further debugged, I found that it picks up only the locales that are specified in LocaleMetaDataInfo class

What needs to be done so that when we call Calendar.getInstance(new Locale(en, AT)) it loads CalendarData_en_AT.class

Code below:

I have a class CalendarData_en_AT.java

public class CalendarData_en_AT extends LocaleNamesBundle{

    public CalendarData_en_AT(){
    }

    protected final Object[][] getContents(){
        return
            new Object[][] { 
                new Object[] { "firstDayOfWeek", "2" },
                new Object[] { "minimalDaysInFirstWeek", "4" }
            };
    }
}

The compiled class is enclosed in a .jar file and have been placed in jre/lib/ext

Now from my test class

if I call Calendar.getInstance(new Locale("en","AT")).getFirstDayOfWeek()

it should return 2, but as of now it returns 1, reason being it loads CalendarData_en.class provide by and not CalendarData_en_AT.class which is user implemented

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