Java HIbernate Maven项目:没有名为的EntityManager的持久性提供程序
我正在编写JPA教程,在尝试单元测试时遇到了一些问题。我正在使用ApacheDerby和Hibernate。 这是我的示例代码文件 persistence.xmlJava HIbernate Maven项目:没有名为的EntityManager的持久性提供程序,java,hibernate,maven,jpa,derby,Java,Hibernate,Maven,Jpa,Derby,我正在编写JPA教程,在尝试单元测试时遇到了一些问题。我正在使用ApacheDerby和Hibernate。 这是我的示例代码文件 persistence.xml <persistence-unit name="test" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>org.
<persistence-unit name="test" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>org.agonical.book.pojo.Book</class>
<properties>
<property name="javax.persistence.schema-generation-action" value="drop-and-create"/>
<property name="javax.persistence.schema-generation-target" value="database-and-scripts"/>
<property name="javax.persistence.jdbc.driver" value="com.apache.derby.jdbc.EmbeddedDriver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:derby://localhost:1527/chapter4DB;create=true"/>
<property name="javax.persistence.sql-load-script-source" value="insert.sql"/>
<property name="show_sql" value="true"/>
<property name="dialect" value="org.hibernate.dialect.DerbyDialect"/>
</properties>
</persistence-unit>
<dependencies>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se</artifactId>
<version>2.4.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.11.1.1</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
pom.xml
<persistence-unit name="test" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>org.agonical.book.pojo.Book</class>
<properties>
<property name="javax.persistence.schema-generation-action" value="drop-and-create"/>
<property name="javax.persistence.schema-generation-target" value="database-and-scripts"/>
<property name="javax.persistence.jdbc.driver" value="com.apache.derby.jdbc.EmbeddedDriver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:derby://localhost:1527/chapter4DB;create=true"/>
<property name="javax.persistence.sql-load-script-source" value="insert.sql"/>
<property name="show_sql" value="true"/>
<property name="dialect" value="org.hibernate.dialect.DerbyDialect"/>
</properties>
</persistence-unit>
<dependencies>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se</artifactId>
<version>2.4.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.11.1.1</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
org.jboss.weld.se
焊接se
2.4.1.最终版本
org.hibernate
休眠验证器
5.0.0.1决赛
org.apache.derby
德比客户机
10.11.1.1
org.hibernate.javax.persistence
hibernate-jpa-2.1-api
1.0.0.1决赛
朱尼特
朱尼特
4.12
单元测试时出错
java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: javax.persistence.PersistenceException: No Persistence provider for EntityManager named test
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:61)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
at org.agonical.book.BookIT.<clinit>(BookIT.java:19)
... 21 more
java.lang.ExceptionInInitializeError
位于sun.reflect.NativeConstructorAccessorImpl.newInstance0(本机方法)
位于sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
位于java.lang.reflect.Constructor.newInstance(Constructor.java:423)
位于org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217)
位于org.junit.runners.BlockJUnit4ClassRunner$1.runReflectCall(BlockJUnit4ClassRunner.java:266)
位于org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
位于org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263)
位于org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
位于org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
位于org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
位于org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
位于org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
访问org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
在org.junit.runner.ParentRunner$2.evaluate(ParentRunner.java:268)
位于org.junit.runners.ParentRunner.run(ParentRunner.java:363)
位于org.junit.runner.JUnitCore.run(JUnitCore.java:137)
位于com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
位于com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
位于com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
位于com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
原因:javax.persistence.PersistenceException:没有名为test的EntityManager的持久性提供程序
位于javax.persistence.persistence.createEntityManagerFactory(persistence.java:61)
位于javax.persistence.persistence.createEntityManagerFactory(persistence.java:39)
在org.agonical.book.BookIT(BookIT.java:19)
... 还有21个
persistence.xml
位于src/test/resources/META-INF
目录中。我确实在src/main/resources/META-INF
dir中的persistence.xml
文件中有测试persistence单元。
每个都以相同的结果结束。我一直在网上做大量的研究,从我所能看到的情况来看,我做的每件事都是正确的,不明白为什么这样做不起作用
任何帮助都将不胜感激。尝试添加依赖项
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.0.0.Final</version> // or whatever version you use
</dependency>
org.hibernate
休眠实体管理器
5.0.0.Final//或您使用的任何版本
到您的pom依赖项
当前您只有API。异常消息声明“EntityManager命名测试没有持久性提供程序”。我在任何地方都没有看到“test”的定义。在测试类的第一行中,我定义了一个EntityManagerFactory
声明使用test
,我看到了,但是那一行希望在persistence.xml中定义一个名为“test”的东西。啊,对不起,没有,我在做一个测试时匹配了持久性单元的名称,我会更新样本为什么是负号?