如何使用ResourceBundle

Question

我试图掌握java应用程序的内部化，如这里所示。但我做不到。我已经创建了一个类，它像声明的那样扩展了ListResourceBundle，并试图检索密钥。不过我总有个例外。如果您查看本教程，它会说要使用.class文件。这不可能是对的，对吧？

项目树

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源代码

下面是我使用的两个类，它们只是MainWindow_xx_XX.java文件中的一个，因为它们基本上是相同的。首先，ListResourceBundle：

public class MainWindow_en_US extends ListResourceBundle {

    @Override
    protected Object[][] getContents() {
        return contents;
    }
    private Object[][] contents = {
        {"fileLabel", "File"},
        {"newSessionLabel", "New session..."},
        {"openSessionLabel", "Open session..."},
        {"saveLabel", "Save"},
        {"exitLabel", "Exit"},
        {"editLabel", "Edit"},
        {"toolsLabel", "Tools"},
        {"helpLabel", "Help"}
    };
}

现在我用来加载它的方法是：

    private static final int DEFAULT_LOCALE = 0;
    private ResourceBundle bundle;
    public static Locale locale;
    public static final Locale[] supportedLocales = {
        new Locale("en", "US"),
        new Locale("es", "ES")
    };

public MainWindow() {
    for (Locale i : supportedLocales) {
        if (i.getLanguage().equals(Locale.getDefault().getLanguage())) {
            locale = i;
            break;
        } else {
            locale = supportedLocales[DEFAULT_LOCALE];
        }
    }
    bundle = ResourceBundle.getBundle("MainWindow", locale); //EXCEPTION POINTS HERE!!!
    initComponents();
}

我一直有下面的例外。我知道我可以通过属性文件来完成这个任务，但是它让我感到很困扰，因为我无法让Oracle的极其简单的教程开始工作。

Exception in thread "AWT-EventQueue-0" java.util.MissingResourceException: Can't find bundle for base name MainWindow, locale es_ES
    at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1499)
    at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1322)
    at java.util.ResourceBundle.getBundle(ResourceBundle.java:796)
    at -.-.-.-.-.<init>(MainWindow.java:37)
    at -.-.-.-.MainWindow$2.run(MainWindow.java:145)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:701)
    at java.awt.EventQueue.access$000(EventQueue.java:102)
    at java.awt.EventQueue$3.run(EventQueue.java:662)
    at java.awt.EventQueue$3.run(EventQueue.java:660)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:671)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

Answer 1

您需要使用完全限定的基本名称：

bundle = ResourceBundle.getBundle("pkg.subpkg.resources.MainWindow", locale);

Answer 2

您不能命名文件MainWindow_es_ES。若要解决问题，请将文件重命名为MainWindow es。

Locale locale = new Locale("es");
ResourceBundle rb = ResourceBundle.getBundle("yourPackageName.MainWindow", locale);   
System.out.print(rb.getObject("YourKey"));