MessageSourceBeanFactoryPostProcessor.java 文件源码

@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
    Map<String, ResourceBundleNameProvider> beans = beanFactory.getBeansOfType(ResourceBundleNameProvider.class);
    if (beans != null) {
        BeanDefinition messageSourceDef = beanFactory.getBeanDefinition("messageSource");

        ManagedList<TypedStringValue> bundleNames = new ManagedList<>();
        bundleNames.setMergeEnabled(true);

        Collection<ResourceBundleNameProvider> nameProviders = beans.values();
        for (ResourceBundleNameProvider resourceBundleNameProvider : nameProviders) {
            for (String bundleName : resourceBundleNameProvider.getBundleNames()) {
                bundleNames.add(new TypedStringValue(bundleName));
            }
        }

        messageSourceDef.getPropertyValues().add("basenames", bundleNames);
    }
}