Maven EJB模块可以';无法接触JPA实体
我有一个包含4个模块的Maven项目:带有persistence.xml的JPA模块、EJB模块、Webapp模块和EAR模块 我使用EJB模块在数据库中持久化实体。现在,当我尝试使用JPA模块中的任何实体时,我在Wildfly 9中遇到以下错误:Maven EJB模块可以';无法接触JPA实体,maven,jpa,ejb,wildfly,ear,Maven,Jpa,Ejb,Wildfly,Ear,我有一个包含4个模块的Maven项目:带有persistence.xml的JPA模块、EJB模块、Webapp模块和EAR模块 我使用EJB模块在数据库中持久化实体。现在,当我尝试使用JPA模块中的任何实体时,我在Wildfly 9中遇到以下错误: 22:42:59,298 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC000001: Failed to start service jboss.deploym
22:42:59,298 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC000001: Failed to start service jboss.deployment.unit."MusicEJB.jar".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."MusicEJB.jar".POST_MODULE: WFLYSRV0153: Failed to process phase POST_MODULE of deployment "MusicEJB.jar"
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:163)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
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.RuntimeException: WFLYSRV0177: Error getting reflective information for class authentication.AuthEJB with ClassLoader ModuleClassLoader for Module "deployment.MusicEJB.jar:main" from Service Module Loader
at org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:70)
at org.jboss.as.ee.metadata.MethodAnnotationAggregator.runtimeAnnotationInformation(MethodAnnotationAggregator.java:57)
at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.handleAnnotations(InterceptorAnnotationProcessor.java:107)
at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.processComponentConfig(InterceptorAnnotationProcessor.java:92)
at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.deploy(InterceptorAnnotationProcessor.java:77)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:156)
... 5 more
Caused by: java.lang.NoClassDefFoundError: entity/User
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at org.jboss.as.server.deployment.reflect.ClassReflectionIndex.<init>(ClassReflectionIndex.java:65)
at org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:66)
... 10 more
Caused by: java.lang.ClassNotFoundException: entity.User from [Module "deployment.MusicEJB.jar:main" from Service Module Loader]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:205)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:455)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:404)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:385)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:130)
... 15 more
22:42:59298错误[org.jboss.msc.service.fail](msc服务线程1-6)MSC000001:无法启动服务jboss.deployment.unit.“MusicEJB.jar”.POST_模块:org.jboss.msc.service.StartException in service jboss.deployment.unit.“MusicEJB.jar”。POST_模块:WFLYSRV0153:无法处理部署“MusicEJB.jar”的阶段POST_模块
位于org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:163)
位于org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
位于org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
运行(Thread.java:745)
导致的原因:java.lang.RuntimeException:WFLYSRV0177:从服务模块加载器获取类身份验证的反射信息时出错。AuthEJB的类加载器ModuleClassLoader用于模块“deployment.MusicEJB.jar:main”
位于org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:70)
位于org.jboss.as.ee.metadata.MethodAnnotationAggregator.runtimeAnnotationInformation(MethodAnnotationAggregator.java:57)
位于org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.handleAnnotations(InterceptorAnnotationProcessor.java:107)
位于org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.processComponentConfig(InterceptorAnnotationProcessor.java:92)
位于org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.deploy(InterceptorAnnotationProcessor.java:77)
位于org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:156)
... 还有5个
原因:java.lang.NoClassDefFoundError:实体/用户
位于java.lang.Class.getDeclaredMethods0(本机方法)
位于java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
位于java.lang.Class.getDeclaredMethods(Class.java:1975)
位于org.jboss.as.server.deployment.reflect.ClassReflectionIndex。(ClassReflectionIndex.java:65)
位于org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:66)
... 10多
原因:java.lang.ClassNotFoundException:entity.User来自服务模块加载器的[Module“deployment.MusicEJB.jar:main]
位于org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:205)
位于org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:455)
位于org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:404)
位于org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:385)
位于org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:130)
... 还有15个
这是我的persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="MusicProjectPersistence" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/postgresDS</jta-data-source>
<class>entity.User</class>
<class>entity.MusicFile</class>
<class>entity.Playlist</class>
<properties>
<property name="hibernate.archive.autodetection" value="class" />
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
<property name="hibernate.connection.driver_class" value="org.postgresql.Driver" />
<property name="hibernate.connection.url" value="jdbc:postgresql://localhost:5432/musicdb" />
<property name="hibernate.connection.username" value="music" />
<property name="hibernate.connection.password" value="music" />
<property name="hibernate.flushMode" value="FLUSH_AUTO" />
<property name="hibernate.hbm2ddl.auto" value="update" />
</properties>
</persistence-unit>
</persistence>
org.hibernate.ejb.HibernatePersistence
java:jboss/datasources/postgresd
实体用户
entity.MusicFile
实体播放列表
我的EJB pom.xml中有JPA模块
我做错了什么?当使用WildFly时,通常不需要使用EAR包装,而是将所有内容都放入一场战争,导致没有不同的类装入器,这可能会为您解决问题
查看一个使用WAR打包的基于maven的项目-它不使用JPA模块,但我想你会明白的。你的EJB找不到你的实体类,因为如果你在构建之后打开ear文件,你会发现你的JPA模块位于EJB模块旁边,而不是在lib文件夹中。解决办法很简单。只需在ear模块的POM中添加JPA模块作为依赖项。这样,您的JPA模块将成为ear的lib文件夹中的一个jar,然后您的EJB和Web模块可以在它们的类路径中找到JPA enitites。添加依赖项后,构建项目并在ear lib文件夹中进行检查,以确保JPA模块作为jar保存。jar文件必须位于ear的
/lib
文件夹中。当您让maven生成一个EAR文件,然后检查其内容时,是否确认了这一点?例外情况表明情况并非如此。