Question

[SerializeField] private float cur_HP; private const float max_HP = 100; private Vector3 PrevmousePos; private bool SpaceIsPressed; // Start is called before the first frame update void Start() { cur_HP = max_HP; } // Update is called once per frame void Update() { SpaceIsPressed = Input.GetKey(KeyCode.Space); Wheel(); } void Wheel() { Vector3 mouseDelta = Input.mousePosition - PrevmousePos; if (mouseDelta.x > 0 && SpaceIsPressed) { float amount = 0.01f; cur_HP -= mouseDelta.x * amount; } else if(mouseDelta.x < 0 && SpaceIsPressed) { float amount = 0.01f; cur_HP += mouseDelta.x * amount; } if (cur_HP <= 0) { cur_HP = 0; Debug.Log("You have unlocked"); } if (cur_HP > 100) { cur_HP = 100; } transform.localRotation = Quaternion.Euler(0, 0, (720 / max_HP * cur_HP)); PrevmousePos = Input.mousePosition; }已被弃用，因此我使用recommended CDI替换 @ManagedBean及其@Named注解（不是JSF javax.faces.view.ViewScoped一个）。

问题

Bean表现为javax.faces.bean.ViewScoped，即@ApplicationScoped正在在应用部署时被调用，然后再也不会被调用，即我看不到{页面访问/刷新上的{1}}调用。

如果我切换回JSF注释，即@PostConstruct + @PostConstruct bean 可以正常工作。

我也尝试过How to replace @ManagedBean / @ViewScope by CDI in JSF 2.0/2.1中列出的@ManagedBean + javax.faces.bean.ViewScoped，但结果与@Named（OmniFaces 2.6.2）相同。

长篇故事

这是一个JSF + Spring集成问题（4.3.1.RELEASE）。

详细信息

应用程序在 Wildfly 11.0.0 上运行。

specTitle ：JSR-000344：JavaServer™Faces 2.2 API
specVersion ：2.2
specVendor ：Oracle
implTitle ：JavaServer™Faces 2.2 API
implVersion ：2.2.13 implVendor：Red Hat的JBoss

Bean

org.omnifaces.cdi.ViewScoped

查看（PrimeFaces 6.0.18）

javax.faces.view.ViewScoped

编辑

在Kukeltje的建议之后，我研究了bean的创建调用堆栈。 Spring以某种方式管理bean的创建。如果我从import javax.annotation.PostConstruct; import javax.faces.view.ViewScoped; import javax.inject.Named; import java.io.Serializable; @Named @ViewScoped public class TestBean implements Serializable { private String text; @PostConstruct private void onPostConstruct() { /* ... */ } public void init() { /* ... */ } public void onCommandButton() { /* ... */ } public String getText() { return text; } public void setText(String text) { this.text = text; } public String getOutput() { return text; } }构造函数中抛出异常，则这是一个堆栈跟踪。

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:p="http://primefaces.org/ui">

    <h:head>
    </h:head>

    <h:body>
        <f:event type="preRenderComponent" listener="#{testBean.init}"/>

        <h:form id="form">
            <p:inputText id="text" value="#{testBean.text}"/>
            <h:outputText id="output" value="#{testBean.output}" />
            <p:commandButton value="SUBMIT" 
                    action="#{testBean.onCommandButton}" 
                    update="output"/>
        </h:form>
    </h:body>
</html>

我检查了配置，发现注册了用于项目bean（TestBean + Constructor threw exception; nested exception is java.lang.RuntimeException: TestBean at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187) at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:205) at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:174) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:239) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:99) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:81) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) at org.jboss.threads.JBossThread.run(JBossThread.java:320) Constructor threw exception; nested exception is java.lang.RuntimeException: TestBean at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:159) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1098) ... 33 more的自定义Spring @Scope("view")实现（类似于this，但没有回调处理） -可能是错误的设计）。我认为这与给定的问题无关，但出于完整性的考虑，@Controller的样子如下：

@Scope("view")

这可能是问题的根源

applicationContext.xhtml

看来，Spring的CDI与应用程序的CDI冲突。您有什么建议吗？

JSF @ViewScoped的行为就像@ApplicationScoped

0 个答案: