JSF初始化因@ViewScoped而失败
我正在构建一个JSF2.3应用程序,在MyFaces2.3.6上使用Primefaces 8.0,在Tomcat9上运行。也使用OpenWebBeans 2.0.18 当我将范围从JSF初始化因@ViewScoped而失败,jsf,primefaces,myfaces,openwebbeans,Jsf,Primefaces,Myfaces,Openwebbeans,我正在构建一个JSF2.3应用程序,在MyFaces2.3.6上使用Primefaces 8.0,在Tomcat9上运行。也使用OpenWebBeans 2.0.18 当我将范围从@requestscope更改为@ViewScoped时,我的一个bean(控制器)给了我一个错误: 28-Sep-2020 13:12:07.368 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error
@requestscope
更改为@ViewScoped
时,我的一个bean(控制器)给了我一个错误:
28-Sep-2020 13:12:07.368 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error occured while initializing MyFaces: It's not allowed to call getReference(Bean, Type, CreationalContext) before AfterDeploymentValidation
java.lang.IllegalStateException: It's not allowed to call getReference(Bean, Type, CreationalContext) before AfterDeploymentValidation
at org.apache.webbeans.container.InjectableBeanManager.checkAfterDeploymentValidationFired(InjectableBeanManager.java:434)
at org.apache.webbeans.container.InjectableBeanManager.getReference(InjectableBeanManager.java:178)
at org.apache.myfaces.cdi.util.CDIUtils.resolveInstance(CDIUtils.java:65)
at org.apache.myfaces.cdi.util.CDIUtils.lookup(CDIUtils.java:52)
at org.apache.myfaces.flow.cdi.DefaultCDIFacesFlowProvider.getAnnotatedFlows(DefaultCDIFacesFlowProvider.java:52)
at org.apache.myfaces.flow.impl.AnnotatedFlowConfigurator.configureAnnotatedFlows(AnnotatedFlowConfigurator.java:42)
at org.apache.myfaces.config.FacesConfigurator.configureFlowHandler(FacesConfigurator.java:1713)
at org.apache.myfaces.config.FacesConfigurator.configure(FacesConfigurator.java:619)
at org.apache.myfaces.webapp.AbstractFacesInitializer.buildConfiguration(AbstractFacesInitializer.java:456)
at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:70)
at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:190)
at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:103)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4685)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5146)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
bean代码大致如下:
@Named
@ViewScoped
@ManagedBean
public class DashBoardController implements Serializable
{
private static final long serialVersionUID = 1L;
private static final Logger logger = Logger.getLogger(DashBoardController.class.getName());
List<IdentityStatistics> idStats;
List<AuditStatistics> auditStats;
@Inject
private StatisticsService service;
@PostConstruct
public void init()
{
logger.log(Level.FINE, "Reading statistics from API");
FacesContext context = FacesContext.getCurrentInstance();
AuthToken token = (AuthToken)context.getExternalContext().getSessionMap().get(AuthService.SESSION_TOKEN);
...
}
...
}
@Named
@视域
@ManagedBean
公共类DashBoardController实现可序列化
{
私有静态最终长serialVersionUID=1L;
私有静态最终记录器Logger=Logger.getLogger(DashBoardController.class.getName());
列出idStats;
列出审计统计数据;
@注入
私人统计服务;
@施工后
公共void init()
{
logger.log(Level.FINE,“从API读取统计数据”);
FacesContext context=FacesContext.getCurrentInstance();
AuthToken令牌=(AuthToken)context.getExternalContext().getSessionMap().get(AuthService.SESSION_令牌);
...
}
...
}
切换回@RequestScoped
会立即解决错误(但这不是我想要的)。错误中提到的getReference()
方法肯定不在我的代码中,因此它一定在某个框架库中
我有另一个非常类似的@ViewScoped
bean,它没有给我这个错误。
很明显,我在某个地方错过了一个不同的地方,但就我的一生而言,我无法发现它
使用
@ViewScoped
时,是什么导致此错误?正常。简单的答案是:使用@Inject
的失败bean包含的StatisticsService
服务没有实现Serializable
在没有问题的请求范围内,显然在其他范围内,状态需要保留
如果错误不那么神秘,那就太好了。删除注释@managedbean,请始终发布完整的注释stacktrace@tandraschko完整的堆栈跟踪添加@raupach我现在意识到我使用了两种不同的注释来完成同样的事情。我删除了
@ManagedBean
,但它无法解决错误。通常情况下,它并没有那么神秘,也许您在日志中遗漏了一个错误/警告?否则我的IDE总是会提醒我这一点。那么StatisticsService
不是EJB吗?例如,@无状态
。这不需要在EJB impl上显式声明Serializable
。@BalusC不,它不是带注释的EJB。我仍在研究何时以及如何使用这些方法——我拥有的许多后端服务都使用无状态和有状态方法,这是功能设计的结果。