21

SO でこの問題に関していくつかの質問と回答を見つけましたが、それらはすべて問題の主な原因の 1 つをカバーしているようです: トランザクション外または別のトランザクション内でのコレクションのフェッチ。しかし、私の場合、親オブジェクトとコレクションをフェッチするときに、同じトランザクション内でフェッチしています。

@Service
@Transactional
public class IntegrationServiceImpl implements IntegrationService {
@Override
    public Integration getIntegrationByIdFetchBackendParameters(Long integrationId) {
        Integration integration = integrationDao.get(integrationId);
        //not all integrations have to have backend.
        if (integration.getBackend() != null) {
            Hibernate.initialize(integration.getBackend().getBackendParameters());
        }
        return integration;
    }
...

しかし、Hibernate.initialize に関しては、org.hibernate.collection.internal.AbstractPersistentCollection のこのブランチが実行されます。

if ( session == null ) {
                throw new HibernateException( "collection is not associated with any session" );
            }

sessionがなぜなのかわかりませんnull。誰かがこれを説明し、解決策を提案しますか?

編集 1 - 完全なスタック トレース

org.hibernate.HibernateException: collection is not associated with any session
        at org.hibernate.collection.internal.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:676)
        at org.hibernate.Hibernate.initialize(Hibernate.java:77)
        at com.dhl.finFw.service.IntegrationServiceImpl.getIntegrationByIdFetchBackendParameters(IntegrationServiceImpl.java:169)
        at com.dhl.finFw.web.integration.IntegrationOverviewManagedBean.loadIntegration(IntegrationOverviewManagedBean.java:59)
        at com.dhl.finFw.web.integration.AbstractIntegrationManagedBean.initCommonFields(AbstractIntegrationManagedBean.java:69)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:344)
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:295)
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:130)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:399)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1481)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
        at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:333)
        at com.dhl.finFw.spring.scope.ViewScope.get(ViewScope.java:30)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:329)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117)
        at org.springframework.beans.factory.access.el.SpringBeanELResolver.getValue(SpringBeanELResolver.java:56)
        at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
        at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
        at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:72)
        at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
        at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
        at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:68)
        at org.apache.el.parser.AstValue.getValue(AstValue.java:161)
        at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
        at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
        at com.sun.faces.facelets.tag.jstl.core.ForEachHandler.apply(ForEachHandler.java:161)
        at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
        at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:166)
        at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
        at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:320)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:379)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:358)
        at com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
        at com.sun.faces.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java:120)
        at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
        at com.sun.faces.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:106)
        at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:178)
        at com.sun.faces.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:395)
        at com.sun.faces.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:366)
        at com.sun.faces.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:111)
        at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
        at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
        at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
        at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
        at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
        at com.sun.faces.facelets.tag.jsf.core.ViewHandler.apply(ViewHandler.java:179)
        at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
        at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
        at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:320)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:379)
        at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:358)
        at com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
        at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:155)
        at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
        at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
        at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:164)
        at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:870)
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:99)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at com.dhl.finFw.web.filter.FileNotFoundFilter.doFilter(FileNotFoundFilter.java:40)
        at com.dhl.finFw.web.filter.FileNotFoundFilter.doFilter(FileNotFoundFilter.java:35)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:64)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)

編集 2 - 構成

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

    <bean id="environmentVariablesConfiguration"
          class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
        <property name="algorithm" value="PBEWithMD5AndDES" />
        <property name="passwordSysPropertyName" value="APP_ENCRYPTION" />
    </bean>

    <bean id="configurationEncryptor"
          class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
        <property name="config" ref="environmentVariablesConfiguration" />
    </bean>


    <bean id="propertyConfigurer"
          class="org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer">
        <constructor-arg ref="configurationEncryptor" />
        <property name="locations">
            <list>
                <value>${finFw.config.location}finFwUI.properties</value>
                <value>classpath:application.properties</value>
                <value>classpath:dateTime.properties</value>
            </list>
        </property>
        <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
    </bean>

    <context:component-scan base-package="com.dhl.finFw"/>

    <context:annotation-config/>

    <tx:annotation-driven/>

    <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="persistenceUnitName" value="FINFW"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                <property name="generateDdl" value="${finFwUI.orm.generateDdl:false}"/>
                <property name="showSql" value="${finFwUI.orm.showSql:false}"/>
                <property name="databasePlatform" value="${finFwUI.orm.dialect}"/>
            </bean>
        </property>
    </bean>

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"/>
    </bean>

    <bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>

    <aop:aspectj-autoproxy/>

    <bean class="org.springframework.beans.factory.config.CustomScopeConfigurer">
        <property name="scopes">
            <map>
                <entry key="view">
                    <bean class="com.dhl.finFw.spring.scope.ViewScope"/>
                </entry>
            </map>
        </property>
    </bean>

    <bean class="org.springframework.web.context.support.ServletContextAttributeExporter">
        <property name="attributes">
            <map>
                <entry key="finFwUIEnvironment" value="${finFwUI.environment}" />
            </map>
        </property>
    </bean>

    <bean id="eventListenerBean" class="com.dhl.finFw.spring.FinFwApplicationListener" />

</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <display-name>FinFwUI</display-name>
    <description>Financial Framework Configuration</description>
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>fileServlet</servlet-name>
        <servlet-class>com.dhl.finFw.web.FileServlet</servlet-class>
    </servlet>
    <!-- Location of the Log4J config file, for initialization and refresh checks.
        Applied by Log4jConfigListener. The variable is replaced with System property 
        at runtime. -->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>${finFw.config.location}log4j-finFwUI.properties</param-value>
    </context-param>
    <!-- Application version. The variable is replaced during Maven build. -->
    <context-param>
        <param-name>applicationVersion</param-name>
        <param-value>${applicationVersion}</param-value>
    </context-param>
    <context-param>
        <param-name>primefaces.THEME</param-name>
        <param-value>dhl</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.FACELETS_LIBRARIES</param-name>
        <param-value>/WEB-INF/springsecurity.taglib.xml</param-value>
    </context-param>

    <!-- possible values: Development, Production, SystemTest, UnitTest The 
        variable is replaced during Maven build or set as System property during 
        development. -->
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>${finFwUI.jsf.stage}</param-value>
    </context-param>
    <!-- Spring application context config locations -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:com/dhl/finFw/finFwUI-core.xml
            classpath:com/dhl/finFw/finFwUI-dataSource.xml
            classpath:com/dhl/finFw/finFwUI-security.xml
            classpath:com/dhl/finFw/finFwUI-forms.xml
            classpath:com/dhl/finFw/finFwUI-audit.xml
        </param-value>
    </context-
    <context-param>
        <param-name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param-name>
        <param-value>true</param-value>
    </context-param>
    <session-config>
        <session-timeout>60</session-timeout>
    </session-config>
    <!-- Configures Log4J for this web app. As this context specifies a context-param
        "log4jConfigLocation", its file path is used to load the Log4J configuration. -->
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <!-- Starts Spring application context. The parent one. The web context 
        is started by Dispatcher servlet. -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
    </listener>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>/faces/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.faces</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>fileServlet</servlet-name>
        <url-pattern>/file/*</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>/pages/protected/index.xhtml</welcome-file>
    </welcome-file-list>
    <filter>
        <filter-name>encoding-filter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter>
        <filter-name>fileNotFoundFilter</filter-name>
        <filter-class>com.dhl.finFw.web.filter.FileNotFoundFilter</filter-class>
    </filter>

    <filter>
        <filter-name>browserCacheControlFilter</filter-name>
        <filter-class>com.dhl.finFw.web.filter.BrowserCacheControlFilter</filter-class>
    </filter>
    <filter>
        <filter-name>PrimeFaces FileUpload Filter</filter-name>
        <filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>PrimeFaces FileUpload Filter</filter-name>
        <servlet-name>Faces Servlet</servlet-name>
    </filter-mapping>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>encoding-filter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>fileNotFoundFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter-mapping>
        <filter-name>browserCacheControlFilter</filter-name>
        <url-pattern>/pages/protected/integration/subscriptionScheduler.xhtml</url-pattern>
    </filter-mapping>

    <error-page>
        <exception-type>org.springframework.security.access.AccessDeniedException</exception-type>
        <location>/pages/public/error/accessDenied.xhtml</location>
    </error-page>
    <error-page>
        <exception-type>java.lang.Throwable</exception-type>
        <location>/pages/public/error/internal.xhtml</location>
    </error-page>
    <error-page>
        <error-code>500</error-code>
        <location>/pages/public/error/internal.xhtml</location>
    </error-page>
    <error-page>
        <error-code>404</error-code>
        <location>/pages/public/error/notFound.xhtml</location>
    </error-page>
    <error-page>
        <error-code>403</error-code>
        <location>/pages/public/error/accessDenied.xhtml</location>
    </error-page>
</web-app>

ViewScope.java

public class ViewScope implements Scope {

    private Logger logger = LoggerFactory.getLogger(getClass());

    public static final String VIEW_SCOPE_CALLBACKS = "viewScope.callbacks";

    @Override
    public Object get(String name, ObjectFactory<?> objectFactory) {
        Map<String, Object> viewMap = getViewMap();
        Object instance = viewMap.get(name);
        if (instance == null) {
            instance = objectFactory.getObject();
            synchronized (viewMap) {
                viewMap.put(name, instance);
                logger.debug("Bean '{}' has been put to ViewScope.", instance);
            }
        } else {
            logger.debug("Going to return an existing bean '{}'", instance);
        }
        return instance;
    }


    @Override
    public Object remove(String name) {
        Object instance = getViewMap().remove(name);
        if (instance != null) {
            Map<String, Runnable> callbacks = (Map<String, Runnable>) getViewMap().get(VIEW_SCOPE_CALLBACKS);
            if (callbacks != null) {
                callbacks.remove(name);
                logger.debug("Bean '{}' has been removed.", instance);
            }
        }
        return instance;
    }

    @Override
    public void registerDestructionCallback(String name, Runnable runnable) {
        Map<String, Runnable> callbacks = (Map<String, Runnable>) getViewMap().get(VIEW_SCOPE_CALLBACKS);
        if (callbacks != null) {
            callbacks.put(name, runnable);
            logger.debug("Registered callback for '{}'", name);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object resolveContextualObject(String name) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        FacesRequestAttributes facesRequestAttributes = new FacesRequestAttributes(facesContext);
        return facesRequestAttributes.resolveReference(name);
    }

    @Override
    public String getConversationId() {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        FacesRequestAttributes facesRequestAttributes = new FacesRequestAttributes(facesContext);
        return facesRequestAttributes.getSessionId() + "-" + facesContext.getViewRoot().getViewId();
    }

    private Map<String, Object> getViewMap() {
        return FacesContext.getCurrentInstance().getViewRoot().getViewMap();
    }

}
4

7 に答える 7

10

@Transactionalメソッドの先頭に置くだけでこの問題を修正しました。

于 2015-02-16T21:53:00.473 に答える
8

アプリケーションでを防ぐためLazyLoadingExceptionに、最初にエンティティをセッションにマージしてから、要求されたコレクションを初期化するヘルパー メソッドを使用します。最近、セッションが開いているように見え、全体的に問題がないように見えるにもかかわらず、「コレクションがどのセッションにも関連付けられていません」という問題が発生することがあることが判明しました。そのような行動の原因が何かを言うのは難しいですが、それでも解決策を見つけました. を使用して遅延コレクションを取得する前に、エンティティの状態を更新してみてくださいsession.refresh(entity)。これにより、Hibernate が DB からエンティティをリロードします。これを行った後、現在のセッションでは、コレクションをスムーズにロードできるようになりますHibernate.initialize()。

于 2014-08-06T12:30:17.793 に答える
2

@Zmicier Zaleznicenka が指摘したように、この例外メッセージはセッションとは何の関係もない可能性があります。この問題も発生しましたが、根本的な原因は、マッピング ファイルで定義されたエンティティの主キー設定が正しくなかったことです。たとえば、次のコードでは、データベース列 "Foo_SK" はテーブルの一意の識別子ではありません。

Id(x => x.Id, "Foo_SK").GeneratedBy.Assigned();

私たちの場合、データベース スキーマを制御することはできません。そのため、複合キー マッピングを使用して問題を修正しました。

同じ問題については、別の投稿を確認してください。

于 2016-09-20T04:30:32.920 に答える
1

@Transactionalメソッドの先頭に置くだけでこの問題を修正しました。また、次のように ID でクラスを取得します。

Test s=get(test.getId())
于 2016-06-01T07:54:59.430 に答える
0

initのメソッドでこれを呼び出しているようですAbstractIntegrationManagedBean。

その前に、休止状態が適切に設定されていることを確認する必要があります。

ほとんどの場合、構成にはそれが反映されておらず、休止状態が既に存在すると想定していますが、その保証はありません。

詳細については、この質問を参照してください: Spring で bean init-method 呼び出しの順序を制御する方法は?

于 2013-09-23T11:31:00.313 に答える