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jboss 7.0.1休眠javax.persistence.PersistenceException：EntityManager沒有持久性提供程序

[英]jboss 7.0.1 hibernate javax.persistence.PersistenceException: No Persistence provider for EntityManager

 原文  2011-09-16 22:57:17  7   3    java/ hibernate/ jboss/ jboss7.x

問題描述

我的休眠應用程序在jboss-as-7.0.0.Final中成功運行，最終將其移至jboss-as-7.0.1.Final，我開始收到這些錯誤 

17:42:42,725 ERROR [com.mycompany.myapp.common.persistence.HibernateUtil] (MSC service thread 1-12) Initial SessionFactory lookup failed.: javax.persistence.PersistenceException: No Persistence provider for EntityManager named primary2
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:69) [hibernate-jpa-2.0-api-1.0.1.Final.jar:1.0.1.Final]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47) [hibernate-jpa-2.0-api-1.0.1.Final.jar:1.0.1.Final]
at com.mycompany.myapp.common.persistence.HibernateUtil.<clinit>(HibernateUtil.java:35) [classes:]
at com.mycompany.myapp.common.businessobjects.ServerSettings.GetServerSettings(ServerSettings.java:84) [classes:]
at com.mycompany.myapp.common.jms.JMSListenerServletTemplate.init(JMSListenerServletTemplate.java:41) [classes:]
at com.mycompany.myapp.common.jms.JMSAnywhereServlet.init(JMSAnywhereServlet.java:179) [classes:]
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1102) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3631) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3844) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)
at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_26]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_26]
at java.lang.Thread.run(Thread.java:680) [:1.6.0_26]

17:42:42,732 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/myapp]] (MSC service thread 1-12) StandardWrapper.Throwable: java.lang.NoClassDefFoundError: Could not initialize class com.mycompany.myapp.common.persistence.HibernateUtil
at com.mycompany.myapp.common.businessobjects.ServerSettings.GetServerSettings(ServerSettings.java:92) [classes:]
at com.mycompany.myapp.common.jms.JMSListenerServletTemplate.init(JMSListenerServletTemplate.java:41) [classes:]
at com.mycompany.myapp.common.jms.JMSAnywhereServlet.init(JMSAnywhereServlet.java:179) [classes:]
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1102) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3631) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3844) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)
at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_26]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_26]
at java.lang.Thread.run(Thread.java:680) [:1.6.0_26]

17:42:42,734 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/myapp]] (MSC service thread 1-12) Servlet /myapp threw load() exception: java.lang.NoClassDefFoundError: Could not initialize class com.mycompany.myapp.common.persistence.HibernateUtil
at com.mycompany.myapp.common.businessobjects.ServerSettings.GetServerSettings(ServerSettings.java:92) [classes:]
at com.mycompany.myapp.common.jms.JMSListenerServletTemplate.init(JMSListenerServletTemplate.java:41) [classes:]
at com.mycompany.myapp.common.jms.JMSAnywhereServlet.init(JMSAnywhereServlet.java:179) [classes:]
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1102) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3631) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3844) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.1.Final.jar:7.0.1.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)
at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_26]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_26]
at java.lang.Thread.run(Thread.java:680) [:1.6.0_26]

我的persistence.xml看起來像 

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
   xmlns="http://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="primary">
  <non-jta-data-source>java:jboss/datasources/MySqlDS</non-jta-data-source>

  <properties>

     <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
     <property name="hibernate.ejb.interceptor.session_scoped" value="com.clairvista.liveexpert.common.persistence.BusinessObjectInterceptor"/>
           </properties>

我的pom.xml看起來像 

  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.0.0.Beta5</version>
  </dependency>

  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-commons-annotations</artifactId>
    <version>3.2.0.Final</version>
  </dependency>
  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>4.0.0.Beta5</version>
  </dependency>

  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-infinispan</artifactId>
    <version>4.0.0.Beta5</version>
  </dependency>

引發這些錯誤的代碼看起來像 

        entityManagerFactory = Persistence.createEntityManagerFactory("primary");

我不確定發生了什么-該應用程序正在jboss-as-7.0.0.Final中運行。 我知道7.0.1對應用程序中捆綁的休眠版本有更好的支持-但是我不確定這與我的問題有什么關系，因為我想使用與容器捆綁在一起的休眠版本。 有任何想法嗎？

3 個解決方案

解決方案1
 1  2011-09-26 08:13:34

我們的pom.xml沒有任何hibernate-依賴，因為JBoss已經有了它們。 您只需要設置為提供的JBoss 7庫。 

<dependency>
    <groupId>org.jboss.spec</groupId>
    <artifactId>jboss-javaee-6.0</artifactId>
    <version>2.0.0.Final</version>
    <type>pom</type>
    <scope>provided</scope>
</dependency>

NoClassDefFoundError通常與一個類或接口在類路徑中出現兩次有關，因此類加載器不知道使用哪個。

解決方案2
 0  2011-09-17 04:30:57

該錯誤顯示“名稱為primary2的EntityManager的持久性提供程序沒有”

但您的persistence.xml將該單位命名為“主要”（不帶后綴2）： 

<persistence-unit name="primary">

這可能是問題嗎？

解決方案3
 0  2011-11-23 10:24:53

您應該將您的休眠依賴項的所有<scope> provided為JBoss 7中所提供的。

例如，對於第一個依賴項，您應該編寫： 

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.0.0.Beta5</version>
    <scope>provided</scope>
</dependency>

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