Spring CDI@ViewScope bean功能不可用

我将JSF 2.2.14与Spring Boot 1.4.4一起使用，并定义了一个自定义视图范围，如下所示：

public class FacesViewScope implements Scope {

    public static final String NAME = "view";

    @Override
    public Object get(String name, ObjectFactory<?> objectFactory) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        if (facesContext == null) {
            throw new IllegalStateException("FacesContext.getCurrentInstance() returned null");
        }

        Map<String, Object> viewMap = FacesContext.getCurrentInstance().getViewRoot().getViewMap();

        if (viewMap.containsKey(name)) {
            return viewMap.get(name);
        } else {
            Object object = objectFactory.getObject();
            viewMap.put(name, object);

            return object;
        }
    }

    @Override
    public Object remove(String name) {
        return FacesContext.getCurrentInstance().getViewRoot().getViewMap().remove(name);
    }

    @Override
    public String getConversationId() {
        return null;
    }

    @Override
    public void registerDestructionCallback(String name, Runnable callback) {
        // Not supported by JSF for view scope
    }

    @Override
    public Object resolveContextualObject(String key) {
        return null;
    }
}

@Component("testBean")
@Scope("view")

页面运行正常，但我收到警告：

c.s.f.application.view.ViewScopeManager  : CDI @ViewScoped bean functionality unavailable

---

我只有在第一次访问页面时才收到此警告，因此我担心此警告是否意味着我做了错事或可能在将来导致问题。

您只需在maven项目的pom.xml上添加以下依赖项：

<dependency>
    <groupId>javax.enterprise</groupId>
    <artifactId>cdi-api</artifactId>
    <version>1.2</version>
</dependency>

javax.enterprise
CDIAPI
1.2

为什么我们需要添加这个新的依赖项？出于某种原因将javax.faces从2.2.6升级到2.2.20，添加

cdi-api

修复了它，谢谢@Cleo

<dependency>
    <groupId>javax.enterprise</groupId>
    <artifactId>cdi-api</artifactId>
    <version>1.2</version>
</dependency>