クラスを読み込めません - wildfly REST

Question

私はJPA jarを作成し、mavenにローカルリポジトリを使用しました。別個のRESTサービスを作成し、それをwildflyにデプロイしました。私はJPAプロジェクトを別々にテストするとうまくいきます。 REST APIを使用すると、次のエラーが表示されます。なぜこれが起こっているのか理解してください。

19:29:53,908 ERROR [io.undertow.request] (default task-3) UT005023: Exception handling request to /krypter/employee: org.jboss.resteasy.spi.UnhandledException: javax.persistence.PersistenceException: Unable to build entity manager factory 
    at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:77) 
    at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:220) 
    at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:175) 
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:418) 
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:209) 
    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221) 
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) 
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) 
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) 
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) 
    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) 
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) 
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) 
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) 
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) 
    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) 
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) 
    at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) 
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) 
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) 
    at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) 
    at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) 
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) 
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) 
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) 
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) 
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:748) 
Caused by: javax.persistence.PersistenceException: Unable to build entity manager factory 
    at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:66) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39) 
    at com.krypter.dal.DataAccessLayer.getEntityManager(DataAccessLayer.java:10) 
    at com.krypter.repository.EmployeeRepository.<init>(EmployeeRepository.java:23) 
    at com.krypter.repository.EmployeeRepository.getInstance(EmployeeRepository.java:30) 
    at com.krypter.services.EmployeeService.getEmployees(EmployeeService.java:27) 
    at com.krypter.services.EmployeeService$Proxy$_$$_WeldClientProxy.getEmployees(Unknown Source) 
    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.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139) 
    at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295) 
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249) 
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:236) 
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:402) 
    ... 43 more 
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:264) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:228) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207) 
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) 
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207) 
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) 
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:847) 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874) 
    at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58) 
    ... 59 more 
Caused by: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [com.ibm.as400.access.AS400JDBCDriver] 
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:229) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.loadDriverIfPossible(DriverManagerConnectionProviderImpl.java:161) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildCreator(DriverManagerConnectionProviderImpl.java:117) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:73) 
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) 
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:254) 
    ... 70 more 
Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.ibm.as400.access.AS400JDBCDriver 
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl$AggregatedClassLoader.findClass(ClassLoaderServiceImpl.java:217) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:348) 
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:226) 
    ... 81 more 

wildflyインストールされているドライバ

[standalone@localhost:9990 /] /subsystem=datasources:installed-drivers-list 
{ 
    "outcome" => "success", 
    "result" => [ 
     { 
      "driver-name" => "iseries", 
      "deployment-name" => undefined, 
      "driver-module-name" => "com.iseries", 
      "module-slot" => "main", 
      "driver-datasource-class-name" => "", 
      "driver-xa-datasource-class-name" => "", 
      "driver-class-name" => "com.ibm.as400.access.AS400JDBCDriver", 
      "driver-major-version" => 11, 
      "driver-minor-version" => 3, 
      "jdbc-compliant" => true 
     }, 
     { 
      "driver-name" => "h2", 
      "deployment-name" => undefined, 
      "driver-module-name" => "com.h2database.h2", 
      "module-slot" => "main", 
      "driver-datasource-class-name" => "", 
      "driver-xa-datasource-class-name" => "org.h2.jdbcx.JdbcDataSource", 
      "driver-class-name" => "org.h2.Driver", 
      "driver-major-version" => 1, 
      "driver-minor-version" => 3, 
      "jdbc-compliant" => true 
     } 
    ] 
} 

persistence.xmlの

<?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="krypter-jpa"> 
     <jta-data-source>java:jboss/datasources/KrypterDs</jta-data-source> 
     <class>com.krypter.domain.Employee</class> 

     <properties> 
      <property name="hibernate.transaction.jta.platform" 
       value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform" /> 
      <property name="hibernate.archive.autodetection" value="class" /> 
      <property name="hibernate.show_sql" value="true" /> 
      <property name="hiberante.format_sql" value="true" /> 
      <property name="hbm2ddl.auto" value="update" /> 
     </properties> 
    </persistence-unit> 
</persistence> 

Answer 1

は、依存関係を追加： -

<dependency> 
    <groupId>net.sf.jt400</groupId> 
    <artifactId>jt400</artifactId> 
    <version>9.1</version> 
    <scope>provided</scope> 
</dependency> 

データソースのプロパティ

spring.datasource.driver-class-name=com.ibm.as400.access.AS400JDBCDriver 
spring.datasource.url=jdbc:as400://172.17.16.21;naming=system;libraries=v8spf 
spring.datasource.username=MyUsername 
spring.datasource.password=MyPassword 

Answer 2

あなたのpersistence.xmlで起動transaction-type="JTA"宣言し、あなたのRESTサービスに@PersistenceContext経由EntityManagerを注入。

<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="krypter-jpa" transaction-type="JTA"> 
     <jta-data-source>java:jboss/datasources/KrypterDs</jta-data-source> 
     <class>com.krypter.domain.Employee</class> 
... 
.. 

とあなたのRESTサービスで：

@PersistenceContext(unitName = "krypter-jpa") 
EntityManager em; 

トランザクション型= "JTA" の入った容器はあなたのためののEntityManager（のPersistenceContext）の作成を行います。 EntityManagerFactoryを使用してEntityManagerを取得することはできませんが、コンテナはEntityManagerを提供します。