【发布时间】：2014-10-10 01:24:33
【问题描述】：
我刚开始使用 JBoss 探索 EJB 的世界， 但是我遇到了一个问题。
当我尝试为 EJB + JPA 编写项目时， 我遇到错误，无法将项目部署到 JBoss。 我现在正在使用 EJB 3.1 + JBoss 7.1.1。 请找到以下服务器日志：
22:18:50,132 INFO [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS015003: Found EJBEntity.jar in deployment directory. To trigger deployment create a file called EJBEntity.jar.dodeploy
22:18:50,142 INFO [org.jboss.as.server.deployment] (MSC service thread 1-13) JBAS015876: Starting deployment of "EJBEntity.jar"
22:18:50,166 INFO [org.jboss.as.jpa] (MSC service thread 1-6) JBAS011401: Read persistence.xml for JPADB
22:18:50,183 INFO [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-6) JNDI bindings for session bean named LibraryPersistentBean in deployment unit deployment "EJBEntity.jar" are as follows:
java:global/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:app/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:module/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:jboss/exported/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:global/EJBEntity/LibraryPersistentBean
java:app/EJBEntity/LibraryPersistentBean
java:module/LibraryPersistentBean
22:18:50,400 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS015870: Deploy of deployment "EJBEntity.jar" was rolled back with failure message JBAS014750: Operation handler failed to complete
22:18:50,412 INFO [org.jboss.as.server.deployment] (MSC service thread 1-8) JBAS015877: Stopped deployment EJBEntity.jar in 11ms
22:18:50,413 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => "JBAS014750: Operation handler failed to complete"}}
22:22:45,525 INFO [org.jboss.as.server.deployment] (MSC service thread 1-13) JBAS015876: Starting deployment of "EJBEntity.jar"
22:22:45,544 INFO [org.jboss.as.jpa] (MSC service thread 1-13) JBAS011401: Read persistence.xml for JPADB
22:22:45,561 INFO [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-16) JNDI bindings for session bean named LibraryPersistentBean in deployment unit deployment "EJBEntity.jar" are as follows:
java:global/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:app/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:module/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:jboss/exported/EJBEntity/LibraryPersistentBean!com.heic.tutorial.entity.stateless.LibraryPersistentBeanRemote
java:global/EJBEntity/LibraryPersistentBean
java:app/EJBEntity/LibraryPersistentBean
java:module/LibraryPersistentBean
22:22:45,782 INFO [org.jboss.as.server] (DeploymentScanner-threads - 1) JBAS015870: Deploy of deployment "EJBEntity.jar" was rolled back with failure message JBAS014750: Operation handler failed to complete
22:22:45,787 INFO [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015877: Stopped deployment EJBEntity.jar in 5ms
22:22:45,789 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 2) {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => "JBAS014750: Operation handler failed to complete"}}
我不知道“操作处理程序未能完成”是什么意思， 我只知道 JBoss 不允许我部署我的项目。
我为有类似情况的人阅读了很多资料， 其中大部分与persistence.xml / datasource / module配置有关。
请找到以下文件：
persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="https://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="JPADB">
<jta-data-source>java:jboss/datasources/MySQLDS</jta-data-source>
<properties>
<property name="showSql" value="true" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
</properties>
</persistence-unit>
</persistence>
standalone.xml的代码段
<subsystem xmlns="urn:jboss:domain:datasources:1.0">
<datasources>
<datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">
<connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</connection-url>
<driver>h2</driver>
<security>
<user-name>sa</user-name>
<password>sa</password>
</security>
</datasource>
<datasource jndi-name="java:jboss/datasources/MySQLDS" pool-name="MySQL" enabled="true" use-java-context="true">
<connection-url>jdbc:mysql://localhost:3306/test</connection-url>
<driver>mysqlDriver</driver>
<security>
<user-name>root</user-name>
<password>root</password>
</security>
</datasource>
<drivers>
<driver name="mysqlDriver" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.Driver</xa-datasource-class>
</driver>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
</subsystem>
java:jboss/datasources/MySQLDS 是我打算使用的那个。
%JBoss_Home%\modules\com\mysql\main\module.xml
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="com.mysql">
<resources>
<resource-root path="mysql-connector-java-5.1.31-bin.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api/>
</dependencies>
</module>
我也将 mysql-connector-java-5.1.31-bin.jar 复制到 %JBoss_Home%\modules\com\mysql\main\ 目录中.....
请问有人可以帮我吗？ 我挣扎了一整天，但仍然无法找到正在发生的事情的线索......
非常感谢。
【问题讨论】：
标签： jakarta-ee jpa jboss ejb