Spring5.x和CDI2.x集成选项

Question

考虑到Spring的5.x基线和CDI的基线2.x，我应该考虑哪些更可行的选项来将它们集成到JSF2.3中，因为JSF2.3与CDI是耦合的。桥梁？定制豆厂？其他?

Answer 1

我们使用bean生产者来访问CDI中的Spring对象。在我们使用的体系结构中，UI和服务器/业务之间有一个接口层，这种集成非常方便。集成按以下方式执行。

来自视图/ui层的Cdi工厂。

public class MainViewClientFactory {

    public MainViewClientFactory() {
    }

    @ApplicationScoped
    @Produces
    public CadastroPaisService cadastroPaisService() {
        return CdiSpringUtils.getSpringBean(CadastroPaisService.class);
    }

}

CdiSpringUtils级。

public class CdiSpringUtils {

    private CdiSpringUtils() {
    }

    public static <R, Q extends Annotation> R getSpringBean(Class<R> beanClass) {
        return ApplicationContextProvider.getApplicationContext().getBean(beanClass);
    }

    public static <R, Q extends Annotation> R getSpringBean(Class<R> beanClass, Class<Q> qualifierClass) {
        return ApplicationContextProvider.getQualifiedBeanOfType(beanClass, qualifierClass);
    }

}

ApplicationContextProvider级。

public class ApplicationContextProvider implements ApplicationContextAware {

    private static ApplicationContext context;

    public static ApplicationContext getApplicationContext() {
        return context;
    }

    public static <R, Q extends Annotation> R getQualifiedBeanOfType(Class<R> cls, Class<Q> qualifierAnnotationClass) {
        R bean = null;
        Map<String, R> beanMap = getApplicationContext().getBeansOfType(cls);
        for (Map.Entry<String, R> entry : beanMap.entrySet()) {
            Q targetAnnotation = getApplicationContext().findAnnotationOnBean(entry.getKey(), qualifierAnnotationClass);
            if (targetAnnotation != null) {
                bean = entry.getValue();
                break;
            }
        }
        return bean;
    }

    @Override
    public void setApplicationContext(ApplicationContext ctx) {
        context = ctx;
    }
}