无法找到持久性单位

时间：2015-05-21 14:15:56

标签： java hibernate jpa intellij-idea

在IntelliJ Idea中，我使用JPA 2.1和hibernate 4.3.10 final创建了一个项目。在我创建数据源（测试连接：成功）后，我从数据库生成了持久性映射。项目编译没有错误。当我尝试使用简单的Select *查询在JPA Console中进行测试时，它会返回以下异常：

[2015-05-21 16:01:27] javax.persistence.PersistenceException: Unable to locate persistence units
[2015-05-21 16:01:27] java.lang.RuntimeException: javax.persistence.PersistenceException: Invalid persistence.xml.
Error parsing XML [line : -1, column : -1] : cvc-elt.1: Cannot find the declaration of element 'persistence'.

at org.hibernate.jpa.boot.internal.PersistenceXmlParser.validate(PersistenceXmlParser.java:377)
at org.hibernate.jpa.boot.internal.PersistenceXmlParser.loadUrl(PersistenceXmlParser.java:310)
at org.hibernate.jpa.boot.internal.PersistenceXmlParser.parsePersistenceXml(PersistenceXmlParser.java:114)
at org.hibernate.jpa.boot.internal.PersistenceXmlParser.doResolve(PersistenceXmlParser.java:104)
at org.hibernate.jpa.boot.internal.PersistenceXmlParser.locatePersistenceUnits(PersistenceXmlParser.java:86)
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:97)
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:88)
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:69)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at com.intellij.jpa.remote.impl.JpaFacadeImpl.createEntityManagerFactory(JpaFacadeImpl.java:16)
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:497)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$2/4400315.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
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)

这是persistence.xml 

<?xml version="1.0" encoding="UTF-8"?>
<persistence 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"
         version="2.1">

<persistence-unit name="NewPersistenceUnit">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <class>model.DepartmentEntity</class>
    <class>model.UserEntity</class>
    <properties>
        <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/svgroup"/>
        <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
        <property name="hibernate.archive.autodetection" value="class"/>
        <property name="hibernate.connection.username" value="root"/>
        <property name="hibernate.connection.password" value=""/>
        <property name="hibernate.show_sql" value="true"/>
        <property name="hibernate.format_sql" value="true"/>
        <property name="hbm2ddl.auto" value="update"/>
    </properties>
</persistence-unit>
</persistence>

有人可以告诉我如何修复此错误吗？我正在搜索和阅读大约10个小时没有成功

修改

如果我尝试在wildfly上部署应用程序而不从数据库创建实体，它将部署应用程序。但是，如果我在创建实体后尝试部署应用程序，则会出现以下错误：

2015-05-21 18:13:01,697 INFO  [org.hibernate.Version] (ServerService Thread Pool -- 15) HHH000412: Hibernate Core {4.3.7.Final}
2015-05-21 18:13:01,704 INFO  [org.hibernate.cfg.Environment] (ServerService Thread Pool -- 15) HHH000206: hibernate.properties not found
2015-05-21 18:13:01,711 INFO  [org.hibernate.cfg.Environment] (ServerService Thread Pool -- 15) HHH000021: Bytecode provider name : javassist
2015-05-21 18:13:02,183 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC000001: Failed to start service  jboss.deployment.unit."SVGZad4_ejb_exploded.rar".INSTALL:  org.jboss.msc.service.StartException in service  jboss.deployment.unit."SVGZad4_ejb_exploded.rar".INSTALL: JBAS018733: Failed to  process phase INSTALL of deployment "SVGZad4_ejb_exploded.rar"
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:166) [wildfly-server-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_71]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_71]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_71]
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration
at org.jboss.as.connector.deployers.ra.processors.ParsedRaDeploymentProcessor.process(ParsedRaDeploymentProcessor.java:237)
at org.jboss.as.connector.deployers.ra.processors.ParsedRaDeploymentProcessor.deploy(ParsedRaDeploymentProcessor.java:130)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:159) [wildfly-server-8.2.0.Final.jar:8.2.0.Final]
... 5 more
Caused by: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration
at org.jboss.jca.common.metadata.ra.common.ResourceAdapter1516Impl.validate(ResourceAdapter1516Impl.java:352)
at org.jboss.jca.common.metadata.ra.common.ConnectorAbstractmpl.validate(ConnectorAbstractmpl.java:334)
at org.jboss.as.connector.deployers.ra.processors.ParsedRaDeploymentProcessor.process(ParsedRaDeploymentProcessor.java:206)
... 7 more

2015-05-21 18:13:02,207 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 3) JBAS014613: Operation ("deploy") failed - address: ([("deployment" => "SVGZad4_ejb_exploded.rar")]) - failure description: {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"SVGZad4_ejb_exploded.rar\".INSTALL" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"SVGZad4_ejb_exploded.rar\".INSTALL: JBAS018733: Failed to process phase INSTALL of deployment \"SVGZad4_ejb_exploded.rar\"
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration
Caused by: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration"}}
2015-05-21 18:13:02,216 ERROR [org.jboss.as.server] (management-handler-thread - 3) JBAS015870: Deploy of deployment "SVGZad4_ejb_exploded.rar" was rolled back with the following failure message: 
{"JBAS014671: Failed services" => {"jboss.deployment.unit.\"SVGZad4_ejb_exploded.rar\".INSTALL" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"SVGZad4_ejb_exploded.rar\".INSTALL: JBAS018733: Failed to process phase INSTALL of deployment \"SVGZad4_ejb_exploded.rar\"
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration
Caused by: org.jboss.jca.common.api.validator.ValidateException: IJ010075: The resource adapter metadata must contain either an outbound or inbound configuration"}}
2015-05-21 18:13:02,301 INFO  [org.hibernate.validator.internal.util.Version] (MSC service thread 1-1) HV000001: Hibernate Validator 5.1.3.Final
2015-05-21 18:13:02,626 INFO  [org.jboss.as.jpa] (ServerService Thread Pool -- 15) JBAS011410: Stopping Persistence Unit (phase 1 of 2) Service 'SVGZad4_ejb_exploded.rar#NewPersistenceUnit'
2015-05-21 18:13:02,637 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-6) JBAS015877: Stopped deployment SVGZad4_ejb_exploded.rar (runtime-name: SVGZad4_ejb_exploded.rar) in 422ms
2015-05-21 18:13:02,640 INFO  [org.jboss.as.controller] (management-handler-thread - 3) JBAS014774: Service status report
JBAS014777:   Services which failed to start:      service jboss.deployment.unit."SVGZad4_ejb_exploded.rar".INSTALL

2 个答案:

答案 0 :(得分：0)

我认为您的Jars（JPA / Hibernate）可能更老了。 你在用什么罐子？

通常当您下载Hibernate之类的东西时，它们允许您下载具有此类persistence.xml和其他文件示例的示例项目。

<强>更新 也许应用程序没有拿起预期的persistence.xml文件？ 尝试在persistence.xml文件中添加一些明显不正确的无效文本。这样，异常将打印出正在查看的persitence.xml的完整名称。

答案 1 :(得分：0)

我认为你必须改变你的persistence.xml

以下一行

<property name = "hbm2ddl.auto" value = "update" />

必须更改为

<property name = "hibernate.hbm2ddl.auto" value = "update" />

然后我想你的数据库中没有密码

<property name = "hibernate.connection.password" value = "?" />

否则，我没有看到任何奇怪的事。

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