아직도 PersistenceException을 받고 : 없음 지속성 제공자를 EntityManager를

위해 나는 그런 예외가 내 응용 프로그램을 배포 한 후 :아직도 PersistenceException을 받고 : 없음 지속성 제공자를 EntityManager를

Caused by: javax.persistence.PersistenceException: No Persistence provider for EntityManager named JavaAcademyUnit 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:85) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) 
    at com.bogdankobylinsky.javaacademy.dao.impl.jpa.UserJPADAO.<init>(UserJPADAO.java:13)

,이 라인에 실패

private EntityManager em = Persistence.createEntityManagerFactory("JavaAcademyUnit").createEntityManager();

JPA 구성 설명 persistance.xml을 파일의 위치는 입니다 ./WEB-INF/classes/META-INF/persistence.xml이며

<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0"> 
    <persistence-unit name="JavaAcademyUnit" transaction-type="JTA"> 
     <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> 
     <jta-data-source>jdbc/__JavaAcademy</jta-data-source> 
     <exclude-unlisted-classes>false</exclude-unlisted-classes> 
     <properties> 
      <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/> 
      <property name="hibernate.hbm2ddl.auto" value="update"/> 
     </properties> 
    </persistence-unit> 
</persistence>

의 pom.xml 다음이 포함 어떤 도움

 <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>5.1.6</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>4.3.1.Final</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-entitymanager</artifactId> 
      <version>4.3.1.Final</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate.javax.persistence</groupId> 
      <artifactId>hibernate-jpa-2.0-api</artifactId> 
      <version>1.0.1.Final</version> 
     </dependency>

감사합니다!

이

유물 폴더에 필요한 라이브러리와 루트에 lib 폴더 이 있어야합니다 :