Liferay 7（DXP）Spring MVCポートレット、アクセスサービスビルダー生成サービスの発行

Question

Spring MVCポートレットからサービス（サービスビルダーモジュールプロジェクトを通じて生成）にアクセスする際に問題が発生しました。フォーラムリンクhttps://dev.liferay.com/develop/tutorials/-/knowledge_base/7-0/service-trackersを読み込み、Service Trackerコントローラからサービスにアクセスする。

は、ここではSpring MVCのポートレットの展開時に、問題の下に直面しSpringTestPortletViewController.java

@Controller 
@RequestMapping("VIEW") 
public class SpringTestPortletViewController { 

    private FooServiceTracker fooServiceTracker; 
    @PostConstruct 
    public void init(){ 
     fooServiceTracker=new FooServiceTracker(this); 
     fooServiceTracker.open(); 
    } 
    @PreDestroy public void destroy(){ 
     fooServiceTracker.close(); 
    } 

    @RenderMapping 
    public String question(Model model) { 
     try { 
      if(!fooServiceTracker.isEmpty()){ 
       FooLocalService fooLocalService=fooServiceTracker.getService(); 
       fooLocalService.saveFoo(); 
       System.out.println("----" + FooLocalServiceUtil.getFoosCount()); 
      } 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
     return "SpringTest/view"; 
    } 
} 

FooServiceTracker.java

public class FooServiceTracker extends ServiceTracker<FooLocalService,FooLocalService>{ 

    public FooServiceTracker(Object host){ 
     super(FrameworkUtil.getBundle(host.getClass()).getBundleContext(), FooLocalService.class, null); 
    } 
} 

です。それはすなわち、FrameworkUtil.getBundle(SpringTestPortletViewController.getClass())がnull

11:49:48,432 INFO [Refresh Thread: Equinox Container: 6095db50-baf9-0016-1a03-97f126c9b821][PortletHotDeployListener:202] Registering portlets for SpringTest-portlet 
11:49:48,649 ERROR [Refresh Thread: Equinox Container: 6095db50-baf9-0016-1a03-97f126c9b821][DispatcherPortlet:279] Context initialization failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springTestPortletViewController': Invocation of init method failed; nested exception is java.lang.NullPointerException 
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) 
    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:772) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) 
    at org.springframework.web.portlet.FrameworkPortlet.createPortletApplicationContext(FrameworkPortlet.java:368) 
    at org.springframework.web.portlet.FrameworkPortlet.initPortletApplicationContext(FrameworkPortlet.java:297) 
    at org.springframework.web.portlet.FrameworkPortlet.initPortletBean(FrameworkPortlet.java:271) 
    at org.springframework.web.portlet.GenericPortletBean.init(GenericPortletBean.java:124) 
    at javax.portlet.GenericPortlet.init(GenericPortlet.java:136) 
    at com.liferay.portlet.InvokerPortletImpl.init(InvokerPortletImpl.java:296) 
    at com.liferay.portlet.PortletInstanceFactoryImpl.init(PortletInstanceFactoryImpl.java:294) 
    at com.liferay.portlet.PortletInstanceFactoryImpl.create(PortletInstanceFactoryImpl.java:193) 
    at com.liferay.portal.kernel.portlet.PortletInstanceFactoryUtil.create(PortletInstanceFactoryUtil.java:49) 
    at com.liferay.portlet.PortletBagFactory.create(PortletBagFactory.java:217) 
    at com.liferay.portal.service.impl.PortletLocalServiceImpl.initWAR(PortletLocalServiceImpl.java:858) 
    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 com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153) 
    at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:174) 
    at com.sun.proxy.$Proxy123.initWAR(Unknown Source) 
    at com.liferay.portal.kernel.service.PortletLocalServiceUtil.initWAR(PortletLocalServiceUtil.java:327) 
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:210) 
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:95) 
    at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:237) 
    at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:104) 
    at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28) 
    at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164) 
    at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154) 
    at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44) 
    at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74) 
    at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58) 
    at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54) 
    at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116) 
    at com.liferay.portal.kernel.servlet.SecurePluginContextListener.contextInitialized(SecurePluginContextListener.java:151) 
    at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter.contextInitialized(ServletContextListenerExceptionAdapter.java:51) 
    at sun.reflect.GeneratedMethodAccessor487.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.eclipse.equinox.http.servlet.internal.registration.ListenerRegistration$EventListenerInvocationHandler.invoke(ListenerRegistration.java:132) 
    at com.sun.proxy.$Proxy491.contextInitialized(Unknown Source) 
    at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddListenerRegistration(ContextController.java:359) 
    at org.eclipse.equinox.http.servlet.internal.context.ContextController.addListenerRegistration(ContextController.java:312) 
    at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:67) 
    at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:1) 
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941) 
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1) 
    at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) 
    at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) 
    at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901) 
    at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109) 
    at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:917) 
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) 
    at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) 
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862) 
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801) 
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127) 
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:225) 
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:464) 
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:482) 
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:1001) 
    at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initListeners(WabBundleProcessor.java:526) 
    at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:153) 
    at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186) 
    at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106) 
    at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:163) 
    at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259) 
    at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232) 
    at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482) 
    at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1) 
    at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232) 
    at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444) 
    at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905) 
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) 
    at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) 
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165) 
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75) 
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67) 
    at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102) 
    at org.eclipse.osgi.container.Module.publishEvent(Module.java:461) 
    at org.eclipse.osgi.container.Module.start(Module.java:452) 
    at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454) 
    at org.eclipse.osgi.container.ModuleContainer.applyDelta(ModuleContainer.java:717) 
    at org.eclipse.osgi.container.ModuleContainer.resolveAndApply(ModuleContainer.java:491) 
    at org.eclipse.osgi.container.ModuleContainer.resolve(ModuleContainer.java:437) 
    at org.eclipse.osgi.container.ModuleContainer.refresh(ModuleContainer.java:955) 
    at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1336) 
    at org.eclipse.osgi.container.ModuleContainer$ContainerWiring.dispatchEvent(ModuleContainer.java:1) 
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) 
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340) 
Caused by: java.lang.NullPointerException 
    at com.service.tracker.FooServiceTracker.<init>(FooServiceTracker.java:11) 
    at SpringTest.SpringTestPortletViewController.init(SpringTestPortletViewController.java:43) 
    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.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:354) 
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:305) 
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133) 
    ... 98 more 

はここにいくつかの入力を感謝来ているバンドルを取得することができない、

Answer 1

FrameworkworkUtilの実装では、クラスをロードするためにOSGiランタイムに依存しています。私はあなたのクラスがOSGiバンドルクラスローダーによって読み込まれず、その代わりにAppClassLoader上にあると信じています。 getBundleは、OSGIクラスローダーを介してロードされたクラスのみを返し、その結果NULLを返します。 OSGIランタイムの設定の詳細については、org.osgi.framework.launch.FrameworkFactoryのドキュメントを参照してください。

Answer 2

私はTomcatの/ libに/ EXTにサービスビルダモジュールAPIのjarファイルを移動するには、サーバーを再起動し、それが働いたSpring MVCのポートレットにUtilのクラスにアクセスしました。 Spring MVCポートレットでサービスビルダーモジュールのjarファイルの依存関係を処理するためのベストプラクティスについては、ここでいくつかの方向性が必要ですか？

Answer 3

私が経験した一般的な習慣は、tomcat/lib /の下でカスタム・ユーザー・サービスなどの汎用サービス・ビルダー・ジャーを維持し、ポートレットのWEB-INF/lib /の下にポートレット固有のサービス・ビルダー・ジャーを保持することでした。ビルダーの瓶を共有する必要がある場合にも、まだlibのポートレットのWEB-INF /の下に置くと異なるポートレットコンテキストでjarファイルを参照するためにrequired-deployment-contextsを使用しています。