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使用CDI的简单Faces Flow中的ContextNotActiveException

本文介绍了使用CDI的简单Faces Flow中的ContextNotActiveException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

大家好！

我正在使用一个简单的面孔流程教程(教程)，但是可以无法解决以下错误:

I'm on a simple faces flow tutorial (Tutorial) but can't solve following error:

20:43:32,085 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-14) Error Rendering View[/common/signup/signup.xhtml]: javax.el.ELException: /common/signup/signup.xhtml @17,53 value="#{signup.name}": org.jboss.weld.context.ContextNotActiveException: WELD-001303: No active contexts for scope type javax.faces.flow.FlowScoped
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:114) [jsf-impl-2.2.6-jbossorg-4.jar:]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIOutput.getValue(UIOutput.java:174) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIInput.getValue(UIInput.java:291) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164) [jsf-impl-2.2.6-jbossorg-4.jar:]
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1864) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.render.Renderer.encodeChildren(Renderer.java:176) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:889) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1857) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1860) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at com.sun.faces.context.PartialViewContextImpl.renderAll(PartialViewContextImpl.java:458) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:316) [jsf-impl-2.2.6-jbossorg-4.jar:]
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60) [primefaces-5.0.jar:5.0]
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1857) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:435) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) [jsf-impl-2.2.6-jbossorg-4.jar:]
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) [jsf-impl-2.2.6-jbossorg-4.jar:]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647) [jboss-jsf-api_2.2_spec-2.2.6.jar:2.2.6]
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:73) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:146) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:177) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:727) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_60]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_60]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_60]
    Caused by: javax.el.ELException: org.jboss.weld.context.ContextNotActiveException: WELD-001303: No active contexts for scope type javax.faces.flow.FlowScoped
at javax.el.BeanELResolver.getValue(BeanELResolver.java:368) [jboss-el-api_3.0_spec-1.0.3.Final.jar:1.0.3.Final]
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203) [jsf-impl-2.2.6-jbossorg-4.jar:]
at com.sun.el.parser.AstValue.getValue(AstValue.java:140) [javax.el-3.0.0.jar:]
at com.sun.el.parser.AstValue.getValue(AstValue.java:204) [javax.el-3.0.0.jar:]
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226) [javax.el-3.0.0.jar:]
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109) [jsf-impl-2.2.6-jbossorg-4.jar:]
... 52 more
    Caused by: org.jboss.weld.context.ContextNotActiveException: WELD-001303: No active contexts   for scope type javax.faces.flow.FlowScoped
at org.jboss.weld.manager.BeanManagerImpl.getContext(BeanManagerImpl.java:680) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:79) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:78) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
at common.signup.Signup$Proxy$_$$_WeldClientProxy.getName(Unknown Source) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_60]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_60]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_60]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_60]
at javax.el.BeanELResolver.getValue(BeanELResolver.java:363) [jboss-el-api_3.0_spec-1.0.3.Final.jar:1.0.3.Final]
... 60 more

我将Wildfly 8.1.0用作服务器. FacesFlow/CDI是否需要其他任何服务器端配置? (在我进行了一些研究之后……我认为不.)

I'm using Wildfly 8.1.0 as Server. Is there any further serverside configuration necessary for FacesFlow/CDI? (After I did some research ... no, in my opinion.)

Signup.java 

@Named
@FlowScoped(value = "signup")
public class Signup implements Serializable {

private boolean licenseAccepted;
private String name;
private String surname;
private String email;
...

signup-flow.xml 

<faces-config version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">

<flow-definition id="signup">
    <flow-return id="index">
        <from-outcome>#{signup.homeAction}</from-outcome>
    </flow-return>
</flow-definition>

顺便说一句-我的页面具有RequestScoped的支持，并且朋友运行得很好，只有FlowScoped Bean导致出现上述错误.

By the way - My pages with RequestScoped backing and friends running perfect, only FlowScoped beans resulting in above posted error.

希望有人可以帮助我.预先感谢.

Hope somebody can help me. Thanks in advance.

推荐答案

首先我还不知道原因，但是我知道它与CDI和 @Named 注释有关.只需将其更改为 javax.faces.bean.ManagedBean 并命名即可.导入正确的批注很重要，因此我要写完整的程序包名称:

First I don't know yet the reason but I do know it's related with CDI and @Named annotation. Just change it to javax.faces.bean.ManagedBean and named it. It's important to import the correct annotation so I write the complete package name: 

@javax.faces.bean.ManagedBean(name = "signIn")
@javax.faces.flow.FlowScoped("signIn")
public class SignInBean implements Serializable {
  private static final long serialVersionUID = 1L;

  private boolean licenseAccepted;
  private String name;
  private String surname;
  .....
}

保留相同的.xml文件

Keep the same .xml file

除此以外，其他bean可以保留@Named批注.我的意思是，如果您有@ViewScope，则可以将其保留为@Named而不是@ManagedBean.

Apart from that notice that other beans can keep the @Named annotation. I mean, if you have a @ViewScope is possible to keep it as @Namedinstead of @ManagedBean.

@Named("home")
@javax.faces.view.ViewScoped
public class HomeBean implements Serializable {
   ...
}

这篇关于使用CDI的简单Faces Flow中的ContextNotActiveException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

09-21 12:23
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