使用Spring Boot和WebSphere 8.5.5進行遠程EJB查找

Question

我有一個使用Spring Batch的批處理應用程序，我也使用Spring Boot。 此應用程序需要執行遠程EJB查找以從應用程序服務器加載一些信息。 到目前為止，我們使用的是JBoss EAP 6.1。 我的pom.xml包含一個特定於JBoss的配置文件，我使用以下依賴項：

<dependency>
    <groupId>org.jboss.as</groupId>
    <artifactId>jboss-as-ejb-client-bom</artifactId>
    <version>7.2.0.Final</version>
    <type>pom</type>
</dependency>

現在我們需要將此應用程序遷移到WebSphere 8.5.5。 我在我的pom.xml中創建了一個新的maven配置文件，其中包含WebSphere上的遠程EJB查找的以下依賴項。

<dependency>
    <groupId>com.ibm.ws</groupId>
    <artifactId>com.ibm.ws.ejb.thinclient</artifactId>
    <version>8.5.0</version>        
    <type>pom</type>
</dependency>

<dependency>
    <groupId>com.ibm.ws</groupId>
    <artifactId>com.ibm.ws.orb</artifactId>
    <version>8.5.0</version>        
    <type>pom</type>
</dependency>

當然我已經在我的maven本地存儲庫中安裝了這個jar。

在配置所有JNDI屬性后，嘗試再次執行批處理，初始上下文工廠指向“com.ibm.websphere.naming.WsnInitialContextFactory”，提供程序URL指向“corbaloc：iiop：localhost：2817”，我得到以下異常：

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [br.com.cpqd.components.security.api.user.SecurityUser]: Factory method 'securityUserEjb' threw exception; nested exception is javax.naming.NoInitialContextException: Cannot instantiate class: com.ibm.websphere.naming.WsnInitialContextFactory [Root exception is java.lang.ClassNotFoundException: com.ibm.websphere.naming.WsnInitialContextFactory]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
    ... 27 common frames omitted
Caused by: javax.naming.NoInitialContextException: Cannot instantiate class: com.ibm.websphere.naming.WsnInitialContextFactory
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:674)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
    at javax.naming.InitialContext.init(InitialContext.java:242)
    at javax.naming.InitialContext.<init>(InitialContext.java:216)
    at org.springframework.jndi.JndiTemplate.createInitialContext(JndiTemplate.java:136)
    at org.springframework.jndi.JndiTemplate.getContext(JndiTemplate.java:103)
    at org.springframework.jndi.JndiTemplate.execute(JndiTemplate.java:85)
    at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:152)
    at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:179)
    at org.springframework.jndi.JndiLocatorSupport.lookup(JndiLocatorSupport.java:95)
    at org.springframework.jndi.JndiObjectLocator.lookup(JndiObjectLocator.java:106)
    at org.springframework.jndi.JndiObjectFactoryBean.lookupWithFallback(JndiObjectFactoryBean.java:231)
    at org.springframework.jndi.JndiObjectFactoryBean.afterPropertiesSet(JndiObjectFactoryBean.java:217)
    at br.com.batch.common.BatchCommonConfig.securityUserEjb(BatchCommonConfig.java:101)
    at br.com.batch.common.BatchCommonConfig$$EnhancerBySpringCGLIB$$e2167a67.CGLIB$securityUserEjb$4(<generated>)
    at br.com.cpqd.saf.events.batch.common.BatchCommonConfig$$EnhancerBySpringCGLIB$$e2167a67$$FastClassBySpringCGLIB$$30b25502.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:309)
    at br.com.batch.common.BatchCommonConfig$$EnhancerBySpringCGLIB$$e2167a67.securityUserEjb(<generated>)
    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.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
    ... 28 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.ibm.websphere.naming.WsnInitialContextFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:63)
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)
    ... 51 common frames omitted

好的，這個班還沒找到。 試圖找出問題，我已經將WebSphere庫的依賴類型從“pom”更改為“jar”。

現在，我得到以下異常：

（抱歉這個葡萄牙語文本，但錯誤代碼可能有幫助）

**NMSV0307E**: Um nome de URL java: foi utilizado, mas a Nomenclatura não foi configurada para manipular nomes de URL java:. A causa provável é um erro do usuário ao tentar especificar um nome de URL java: em um cliente não J2EE ou no ambiente do servidor. Emitindo ConfigurationException.

2016-06-06 14:43:18.952  WARN 18856 --- [           main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor': Invocation of init method failed; nested exception is javax.validation.ValidationException: Could not create Configuration.
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1566)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:199)
    at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:615)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:465)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
    at br.com.cpqd.saf.events.batch.BatchProcessingBootstrap.main(BatchProcessingBootstrap.java:62)
Caused by: javax.validation.ValidationException: Could not create Configuration.
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:175)
    at org.springframework.validation.beanvalidation.LocalValidatorFactoryBean.afterPropertiesSet(LocalValidatorFactoryBean.java:223)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor$Jsr303ValidatorFactory.run(ConfigurationPropertiesBindingPostProcessor.java:381)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor.afterPropertiesSet(ConfigurationPropertiesBindingPostProcessor.java:174)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
    ... 12 common frames omitted
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
    at java.util.ArrayList.rangeCheck(ArrayList.java:635)
    at java.util.ArrayList.get(ArrayList.java:411)
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:173)
    ... 17 common frames omitted

谷歌搜索錯誤消息和閱讀大量的網站，我認為由於某種原因，Spring Boot不允許com.ibm.ws.ejb.thinclient jar提供的可嵌入EJB容器啟動，但我不確定。

有沒有人試過這樣做？

Answer 1

當API在類路徑上可用時（可能是com.ibm.ws.ejb.thinclient JAR），但是實現提供程序不可用時， IndexOutOfBoundsException是javax.validation.Validation拋出的（差）異常。 根據Spring文檔 ， ConfigurationPropertiesBindingPostProcessor類在類路徑上可用時嘗試使用javax.validation API。

我不太清楚Spring Boot是否有辦法禁用你的行為，所以我最好的建議是在你的類路徑中包含一個javax.validation實現。 例如，您還可以包含com.ibm.ws.jpa.thinclient JAR。