在 openwebbeans 1.5.0 之前开始的 omnifaces? [英] omnifaces starting before openwebbeans 1.5.0?
本文介绍了在 openwebbeans 1.5.0 之前开始的 omnifaces?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
我使用的是 Java 8/Tomcat 8/OpenWebBeans 1.5.0/MyFaces 2.2.8/DeltaSpike 1.3.0.
I am using Java 8 / Tomcat 8 / OpenWebBeans 1.5.0 / MyFaces 2.2.8 / DeltaSpike 1.3.0.
由于我想使用 openwebbeans-tomcat7 模块，我将以下 jars 放在 tomcat/lib 中:
As I want to use the openwebbeans-tomcat7 module, I placed the following jars in tomcat/lib :
- openwebbeans-web-1.5.0.jar
- openwebbeans-tomcat7-1.5.0.jar
- openwebbeans-spi-1.5.0.jar
- openwebbeans-resource-1.5.0.jar
- openwebbeans-jsf-1.5.0.jar
- openwebbeans-impl-1.5.0.jar
- openwebbeans-el22-1.5.0.jar
- xbean-finder-shaded-4.1.jar
- xbean-asm5-shaded-4.1.jar
- myfaces-impl-2.2.8.jar
- myfaces-api-2.2.8.jar
- geronimo-atinject_1.0_spec-1.0.jar
- geronimo-annotation_1.2_spec-1.0.jar
- geronimo-validation_1.0_spec-1.1.jar
- geronimo-stax-api_1.0_spec-1.0.jar
- geronimo-servlet_3.0_spec-1.0.jar
- geronimo-jcdi_1.1_spec-1.0.jar
- geronimo-interceptor_1.2_spec-1.0.jar
- commons-digester-1.8.jar
- commons-beanutils-1.8.3.jar
- commons-collections-3.2.jar
- commons-logging-1.1.1.jar
- commons-codec-1.3.jar
我也喜欢使用很棒的 omnifaces 库.因此，我的 web 应用程序在 WEB-INF/lib 中将 omnifaces 作为依赖项
I also love to use the great omnifaces library. So, my webapp has omnifaces as a dependency, in WEB-INF/lib
我使用的两个版本 1.8.1 和 2.0 的 CDI 存在问题.在我看来，omnifaces 是在 openwebbeans 之前启动的，所以没有找到 CDI.
There is a problem with CDI with the two versions I am using, 1.8.1 and 2.0. It seems to me that omnifaces is started before openwebbeans is, and so does not find CDI.
在 1.8.1 中，此问题引发异常，但它是非阻塞的，因为在此版本中 CDI 不是强制性的.在 2.0 中，它会阻止 webapp 启动，因为 omnifaces 2.0 要求 CDI.
With 1.8.1, this issue raises an exception but it is non blocking, as CDI is not mandatory in this version. In the 2.0, it prevents webapp startup, as omnifaces 2.0 has CDI as a requirement.
对于 1.8.1，日志是:
With 1.8.1, log is :
21-May-2015 23:07:17.678 INFO [main] org.apache.catalina.core.StandardService.startInternal Démarrage du service Catalina
21-May-2015 23:07:17.678 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.20
21-May-2015 23:07:17.690 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Déploiement du descripteur de configuration /opt/apache-tomcat-8.0.20/conf/Catalina/localhost/apps#presences#edit.xml
21-May-2015 23:07:18.914 INFO [localhost-startStop-1] org.apache.catalina.core.StandardContext.addApplicationListener The listener "org.apache.webbeans.servlet.WebBeansConfigurationListener" is already configured for this context. The duplicate definition has been ignored.
21-May-2015 23:07:19.199 SEVERE [localhost-startStop-1] org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject Error is occured while injecting the OpenWebBeans dependencies for instance org.omnifaces.cdi.eager.EagerBeansRequestListener@7dd5f8b3
javax.enterprise.inject.UnsatisfiedResolutionException: Api type [org.omnifaces.cdi.eager.BeansInstantiator] is not found with the qualifiers
Qualifiers: [@javax.enterprise.inject.Default()]
for injection into Field Injection Point, field name : eagerBeansRepository, Bean Owner : [null]
at org.apache.webbeans.util.InjectionExceptionUtil.throwUnsatisfiedResolutionException(InjectionExceptionUtil.java:65)
at org.apache.webbeans.container.InjectionResolver.getInjectionPointBean(InjectionResolver.java:271)
at org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:82)
at org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
at org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:220)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:206)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:196)
at org.apache.webbeans.inject.OWBInjector.inject(OWBInjector.java:57)
at org.apache.webbeans.web.tomcat7.TomcatUtil.inject(TomcatUtil.java:40)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject(TomcatInstanceManager.java:122)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.newInstance(TomcatInstanceManager.java:88)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4650)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5162)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
21-May-2015 23:07:19.201 SEVERE [localhost-startStop-1] org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject Error is occured while injecting the OpenWebBeans dependencies for instance org.omnifaces.cdi.eager.EagerBeansSessionListener@26cf68af
javax.enterprise.inject.UnsatisfiedResolutionException: Api type [org.omnifaces.cdi.eager.BeansInstantiator] is not found with the qualifiers
Qualifiers: [@javax.enterprise.inject.Default()]
for injection into Field Injection Point, field name : eagerBeansRepository, Bean Owner : [null]
at org.apache.webbeans.util.InjectionExceptionUtil.throwUnsatisfiedResolutionException(InjectionExceptionUtil.java:65)
at org.apache.webbeans.container.InjectionResolver.getInjectionPointBean(InjectionResolver.java:271)
at org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:82)
at org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
at org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:220)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:206)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:196)
at org.apache.webbeans.inject.OWBInjector.inject(OWBInjector.java:57)
at org.apache.webbeans.web.tomcat7.TomcatUtil.inject(TomcatUtil.java:40)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject(TomcatInstanceManager.java:122)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.newInstance(TomcatInstanceManager.java:88)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4650)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5162)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
21-May-2015 23:07:19.201 SEVERE [localhost-startStop-1] org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject Error is occured while injecting the OpenWebBeans dependencies for instance org.omnifaces.cdi.eager.EagerBeansSessionListener@26cf68af
javax.enterprise.inject.UnsatisfiedResolutionException: Api type [org.omnifaces.cdi.eager.BeansInstantiator] is not found with the qualifiers
Qualifiers: [@javax.enterprise.inject.Default()]
for injection into Field Injection Point, field name : eagerBeansRepository, Bean Owner : [null]
at org.apache.webbeans.util.InjectionExceptionUtil.throwUnsatisfiedResolutionException(InjectionExceptionUtil.java:65)
at org.apache.webbeans.container.InjectionResolver.getInjectionPointBean(InjectionResolver.java:271)
at org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:82)
at org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
at org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:220)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:206)
at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:196)
at org.apache.webbeans.inject.OWBInjector.inject(OWBInjector.java:57)
at org.apache.webbeans.web.tomcat7.TomcatUtil.inject(TomcatUtil.java:40)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.inject(TomcatInstanceManager.java:122)
at org.apache.webbeans.web.tomcat7.TomcatInstanceManager.newInstance(TomcatInstanceManager.java:88)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4650)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5162)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
21-May-2015 23:07:19.240 INFO [localhost-startStop-1] org.apache.webbeans.lifecycle.AbstractLifeCycle.bootstrapApplication OpenWebBeans Container is starting...
21-May-2015 23:07:19.242 INFO [localhost-startStop-1] org.apache.webbeans.plugins.PluginLoader.startUp Adding OpenWebBeansPlugin : [TomcatWebPlugin]
21-May-2015 23:07:19.242 INFO [localhost-startStop-1] org.apache.webbeans.plugins.PluginLoader.startUp Adding OpenWebBeansPlugin : [OpenWebBeansJsfPlugin]
21-May-2015 23:07:19.246 INFO [localhost-startStop-1] org.apache.webbeans.corespi.scanner.AbstractMetaDataDiscovery.addWebBeansXmlLocation added beans archive URL: file:/mnt/ssd/home_bis/dev/git/presences/presences_modules/editpresences/target/edit%23%231.0-SNAPSHOT/WEB-INF/classes/META-INF/beans.xml
21-May-2015 23:07:19.252 INFO [localhost-startStop-1] org.apache.webbeans.corespi.scanner.AbstractMetaDataDiscovery.addWebBeansXmlLocation added beans archive URL: jar:file:/mnt/ssd/home_bis/dev/git/presences/presences_modules/editpresences/target/edit%23%231.0-SNAPSHOT/
对于 2.0，它是:
21-May-2015 23:32:12.076 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.20
21-May-2015 23:32:12.090 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Déploiement du descripteur de configuration /opt/apache-tomcat-8.0.20/conf/Catalina/localhost/apps#presences#edit.xml
21-May-2015 23:32:13.389 INFO [localhost-startStop-1] org.apache.catalina.core.StandardContext.addApplicationListener The listener "org.apache.webbeans.servlet.WebBeansConfigurationListener" is already configured for this context. The duplicate definition has been ignore
d.
21-May-2015 23:32:13.641 INFO [localhost-startStop-1] org.omnifaces.ApplicationInitializer.logOmniFacesVersion Using OmniFaces version 2.0
21-May-2015 23:32:13.644 SEVERE [localhost-startStop-1] org.omnifaces.ApplicationInitializer.checkCDIAvailable
████████████████████████████████████████████████████████████████████████████████
▌ ▐█ ▐ ▐
▌ ▄ ▄█▓█▌ ▐ OmniFaces failed to initialize! ▐
▌ ▐██▄ ▄▓░░▓▓ ▐ ▐
▌ ▐█░██▓ ▓▓░░░▓▌ ▐ This OmniFaces version requires CDI, but ▐
▌ ▐█▌░▓██ █▓░░░░▓ ▐ none was found on this environment. ▐
▌ ▓█▌░░▓█▄███████▄███▓░▓█ ▐ ▐
▌ ▓██▌░▓██░░░░░░░░░░▓█░▓▌ ▐ OmniFaces 2.x requires a minimum of JSF 2.2.▐
▌ ▓█████░░░░░░░░░░░░▓██ ▐ Since this JSF version, the JSF managed bean▐
▌ ▓██▓░░░░░░░░░░░░░░░▓█ ▐ facility @ManagedBean is semi-official ▐
▌ ▐█▓░░░░░░█▓░░▓█░░░░▓█▌ ▐ deprecated in favour of CDI. JSF 2.2 users ▐
▌ ▓█▌░▓█▓▓██▓░█▓▓▓▓▓░▓█▌ ▐ are strongly encouraged to move to CDI. ▐
▌ ▓▓░▓██████▓░▓███▓▓▌░█▓ ▐ ▐
▌ ▐▓▓░█▄▐▓▌█▓░░▓█▐▓▌▄▓░██ ▐ OmniFaces goes a step further by making CDI ▐
▌ ▓█▓░▓█▄▄▄█▓░░▓█▄▄▄█▓░██▌ ▐ a REQUIRED dependency next to JSF 2.2. This ▐
▌ ▓█▌░▓█████▓░░░▓███▓▀░▓█▓ ▐ not only ensures that your web application ▐
▌ ▐▓█░░░▀▓██▀░░░░░ ▀▓▀░░▓█▓ ▐ represents the state of art, but this also ▐
▌ ▓██░░░░░░░░▀▄▄▄▄▀░░░░░░▓▓ ▐ makes for us easier to develop OmniFaces, ▐
▌ ▓█▌░░░░░░░░░░▐▌░░░░░░░░▓▓▌ ▐ without the need for all sorts of hacks in ▐
▌ ▓█░░░░░░░░░▄▀▀▀▀▄░░░░░░░█▓ ▐ in order to get OmniFaces to deploy on ▐
▌ ▐█▌░░░░░░░░▀░░░░░░▀░░░░░░█▓▌ ▐ environments without CDI. ▐
▌ ▓█░░░░░░░░░░░░░░░░░░░░░░░██▓ ▐ ▐
▌ ▓█░░░░░░░░░░░░░░░░░░░░░░░▓█▓ ▐ You have 3 options: ▐
██████████████████████████████████ 1. Downgrade to OmniFaces 1.x. ▐
█░▀░░░░▀█▀░░░░░░▀█░░░░░░▀█▀░░░░░▀█ 2. Install CDI in this environment. ▐
█░░▐█▌░░█░░░██░░░█░░██░░░█░░░██░░█ 3. Switch to a CDI capable environment. ▐
█░░▐█▌░░█░░░██░░░█░░██░░░█░░░██░░█ ▐
█░░▐█▌░░█░░░██░░░█░░░░░░▄█░░▄▄▄▄▄█ For additional instructions, check ▐
█░░▐█▌░░█░░░██░░░█░░░░████░░░░░░░█ http://omnifaces.org/cdi ▐
█░░░█░░░█▄░░░░░░▄█░░░░████▄░░░░░▄█ ▐
████████████████████████████████████████████████████████████████████████████████
21-May-2015 23:32:13.645 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Error during ServletContainerInitializer processing
javax.servlet.ServletException: java.lang.ExceptionInInitializerError
at org.omnifaces.ApplicationInitializer.checkCDIAvailable(ApplicationInitializer.java:101)
at org.omnifaces.ApplicationInitializer.onStartup(ApplicationInitializer.java:50)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5151)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ExceptionInInitializerError
at org.omnifaces.ApplicationInitializer.checkCDIAvailable(ApplicationInitializer.java:64)
... 13 more
Caused by: java.lang.IllegalStateException: CDI BeanManager instance is not available in JNDI.
at org.omnifaces.config.BeanManager.<init>(BeanManager.java:106)
at org.omnifaces.config.BeanManager.<clinit>(BeanManager.java:49)
... 14 more
21-May-2015 23:32:13.651 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Erreur de démarrage du contexte [/apps/presences/edit] suite aux erreurs précédentes
21-May-2015 23:32:13.657 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor /opt/apache-tomcat-8.0.20/conf/Catalina/localhost/apps#presences#edit.xml has finished in 1 566 ms
21-May-2015 23:32:13.659 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Déploiement de l'archive /opt/apache-tomcat-8.0.20/webapps/edit##1.0-SNAPSHOT.war de l'application web
21-May-2015 23:32:14.649 INFO [localhost-startStop-1] org.apache.catalina.core.StandardContext.addApplicationListener The listener "org.apache.webbeans.servlet.WebBeansConfigurationListener" is already configured for this context. The duplicate definition has been ignored.
21-May-2015 23:32:14.767 INFO [localhost-startStop-1] org.apache.webbeans.lifecycle.AbstractLifeCycle.bootstrapApplication OpenWebBeans Container is starting...
21-May-2015 23:32:14.773 INFO [localhost-startStop-1] org.apache.webbeans.corespi.scanner.AbstractMetaDataDiscovery.addWebBeansXmlLocation added beans archive URL: file:/opt/apache-tomcat-8.0.20/webapps/edit%23%231.0-SNAPSHOT/WEB-INF/classes/META-INF/beans.xml
21-May-2015 23:32:14.779 INFO [localhost-startStop-1] org.apache.webbeans.corespi.scanner.AbstractMetaDataDiscovery.addWebBeansXmlLocation added beans archive URL: jar:file:/opt/apache-tomcat-8.0.20/webapps/edit%23%231.0-SNAPSHOT/WEB-INF/lib/deltaspike-core-impl-1.3.0.jar!/ME
这个问题只发生在omnifaces上.OWB 适用于我的网络应用程序.
The problem occurs only with omnifaces. OWB works in my webapp.
启动顺序还是很不稳定的，取决于容器(见例如 http://javaeesquad.blogspot.fr/2015/03/getting-notified-when-java-ee.html).
The start sequence is still very fluctuent, depending on the container (see http://javaeesquad.blogspot.fr/2015/03/getting-notified-when-java-ee.html for instance).
我看到 OmniFaces 已经处理了 Glassfish 的特殊情况:
I see that OmniFaces already handles Glassfish special case :
公共类 ApplicationInitializer 实现了 ServletContainerInitializer {
public class ApplicationInitializer implements ServletContainerInitializer {
// Constants ------------------------------------------------------------------------------------------------------
private static final Logger logger = Logger.getLogger(ApplicationInitializer.class.getName());
// Actions --------------------------------------------------------------------------------------------------------
@Override
public void onStartup(Set<Class<?>> c, ServletContext servletContext) throws ServletException {
logOmniFacesVersion();
checkCDIAvailable(servletContext);
FacesViews.registerFilter(servletContext);
}
private void logOmniFacesVersion() {
logger.info("Using OmniFaces version " + getClass().getPackage().getSpecificationVersion());
}
private void checkCDIAvailable(ServletContext servletContext) throws ServletException {
if (Hacks.isCDIAvailableInGlassFish(servletContext)) {
return; // Okay. Don't proceed, because GF4 fails to scan JNDI during servlet container initialization.
}
try {
BeanManager.INSTANCE.toString();
}
catch (Throwable e) {
logger.severe(""
+ "\n████████████████████████████████████████████████████████████████████████████████"
+ "\n▌ ▐█ ▐ ▐"
+ "\n▌ ▄ ▄█▓█▌ ▐ OmniFaces failed to initialize! ▐"
+ "\n▌ ▐██▄ ▄▓░░▓▓ ▐ ▐"
+ "\n▌ ▐█░██▓ ▓▓░░░▓▌ ▐ This OmniFaces version requires CDI, but ▐"
+ "\n▌ ▐█▌░▓██ █▓░░░░▓ ▐ none was found on this environment. ▐"
+ "\n▌ ▓█▌░░▓█▄███████▄███▓░▓█ ▐ ▐"
+ "\n▌ ▓██▌░▓██░░░░░░░░░░▓█░▓▌ ▐ OmniFaces 2.x requires a minimum of JSF 2.2.▐"
+ "\n▌ ▓█████░░░░░░░░░░░░▓██ ▐ Since this JSF version, the JSF managed bean▐"
和课堂上的黑客:
// GlassFish related ----------------------------------------------------------------------------------------------
/**
* Returns <code>true</code> if CDI is available in GlassFish.
* @param servletContext The involved servlet context.
* @return <code>true</code> if CDI is available in GlassFish.
*/
public static boolean isCDIAvailableInGlassFish(ServletContext servletContext) {
return servletContext.getAttribute("org.glassfish.jsp.beanManagerELResolver") instanceof ELResolver;
}
OWB 有可能有这样的特殊情况吗?测试一个属性是否设置对我来说已经足够公平了.
Is it possible to have such a special case for OWB ? Testing that an attribute is set would be fair enough to me.
或者是否可以推迟omnifaces实例化?
Or is it possible to postpone omnifaces instanciation ?
最后，为什么不等待CDI通知，方法如:
Finally, why not wait for the CDI notification, with a method such as :
public class CDIStartup {
public void postConstruct(@Observes @Initialized(ApplicationScoped.class) Object o) {
// CDI Ready }
}
推荐答案
OmniFaces 需要更改校验码，因为它是不可移植的.CDI 规范没有定义 BeanManager 或任何 Context 需要在 ServletContainerInitializer 中可用.这在很大程度上取决于目标环境和集成场景，因此非常不可移植.与完美运行的旧版本相比，这也是一种回归.
OmniFaces needs to change the check code as it is non-portable. The CDI Specification does not define that the BeanManager nor any Context needs to be available in a ServletContainerInitializer. This is highly depending on the target environment and integration scenario and thus highly non-portable. This is also a regression in comparison to older versions where it flawlessly worked.
将其移动为 ServletContextListener，或者使其成为警告并完成.
Move it a ServletContextListener, or make it a warning and be done.
这篇关于在 openwebbeans 1.5.0 之前开始的 omnifaces?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IT屋！
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