CDI @Produces具有多个属性文件

本文介绍了CDI @Produces具有多个属性文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

感谢这篇文章， stackoverflow/a/28047512/1227941 我现在正在使用CDI使味精在我的@Named bean中可用，例如:

Thanks to this post, stackoverflow/a/28047512/1227941 I am now using CDI to make msg available in my @Named beans like this:

@RequestScoped public class BundleProducer { @Produces public PropertyResourceBundle getBundle() { FacesContext context = FacesContext.getCurrentInstance(); return context.getApplication().evaluateExpressionGet(context, "#{msg}", PropertyResourceBundle.class); } }

使用注射方式:

@Inject private PropertyResourceBundle bundle;

问题:如果我有更多属性文件:ui.properties，admin.properties ...?

The question: What should I do if I have more property files: ui.properties, admin.properties ...?

推荐答案

我只是使用分类器注释来选择要注入的包.从我的一个小项目中偷来的:

I'd simply use a classifier annotation to choose which bundle to inject. Ripped from a little project of mine:

注释:

@Qualifier @Target({ ElementType.TYPE, ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER }) @Retention(RetentionPolicy.RUNTIME) public @interface Bundle { @Nonbinding public String value() default ""; }

生产者方法(根据您的上下文进行适当调整):

The producer method (adapt as necessary for your context):

@Produces @Bundle ResourceBundle loadBundle(InjectionPoint ip) { String bundleName = ip.getAnnotated().getAnnotation(Bundle.class).value(); ResourceBundle res = ResourceBundle.getBundle(bundleName); return res; }

还有注射:

@Inject @Bundle("ui") private ResourceBundle uiResources;