MessageSourceResourceBundle.java 文件源码

/**
 * This implementation resolves the code in the MessageSource.
 * Returns {@code null} if the message could not be resolved.
 */
@Override
protected Object handleGetObject(String key) {
    try {
        return this.messageSource.getMessage(key, null, this.locale);
    }
    catch (NoSuchMessageException ex) {
        return null;
    }
}