无法从persistence.xml连接到JDBC

Question

这是我的实体

package Java.JPA;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class Book
{
  @Id @GeneratedValue
  private long id;
  private String title;

  public Book()
  {

  }

  public Book(String title) {
    this.title = title;
  }

  public String getTitle()
  {
    return title;
  }

  public void setTitle(String title) {
    this.title = title;
  }
}

这是我的主课

package Java;

import Java.JPA.Book;
import java.sql.SQLException;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;

public class main
{

  public static void main(String[] args) throws SQLException, ClassNotFoundException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("example");
    EntityManager em = emf.createEntityManager();
    Book book = new Book("TestJPA");
    EntityTransaction tx = em.getTransaction();
    tx.begin();
    em.persist(book);
    tx.commit();

    em.close();
    emf.close();
  }
}

这就是我的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="example">
    <!--<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>-->
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

    <class>Java.JPA.Book</class>
    <properties>
      <property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
      <property name="javax.persistence.jdbc.driver" value="com.mysql.cj.jdbc.Driver"/>
      <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/studyJPA"/>
      <property name="javax.persistence." value="root"/>
      <property name="javax.persistence.jdbc.password" value="root"/>
    </properties>
  </persistence-unit>
</persistence>

堆栈跟踪：

"C:\Program Files\Java\jdk1.8.0_92\bin\java" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3.2\lib\idea_rt.jar=55859:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_92\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_92\jre\lib\resources.jar;C:\Program 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Java.main
91  INFO   [main] openjpa.Runtime - OpenJPA dynamically loaded the class enhancer. Any classes that were not enhanced at build time will be enhanced when they are loaded by the JVM.
121  INFO   [main] openjpa.Runtime - Starting OpenJPA 2.4.3
Exception in thread "main" <openjpa-2.4.3-r422266:1833086 fatal user error> org.apache.openjpa.persistence.ArgumentException: The persistence provider is attempting to use properties in the persistence.xml file to resolve the data source. A Java Database Connectivity (JDBC) driver or data source class name must be specified in the openjpa.ConnectionDriverName or javax.persistence.jdbc.driver property. The following properties are available in the configuration: "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@2655aabb". 
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:71)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:850)
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:603)
    at org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRepository.java:1520)
    at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:535)
    at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:460)
    at org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:121)
    at org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68)
    at org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:973)
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:964)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:642)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:202)
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:154)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:226)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:153)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:59)
    at Java.main.main(main.java:15)

Process finished with exit code 1

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/geronimo/osgi/locator/ProviderLocator
    at javax.persistence.spi.PersistenceProviderResolverHolder$DefaultPersistenceProviderResolver.getPersistenceProviders(PersistenceProviderResolverHolder.java:108)
    at javax.persistence.Persistence.getProviders(Persistence.java:275)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:88)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:72)
    at Java.main.main(main.java:14)
Caused by: java.lang.ClassNotFoundException: org.apache.geronimo.osgi.locator.ProviderLocator
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 5 more

Answer 1

<persistence>
    <persistence-unit name="manager1" transaction-type="RESOURCE_LOCAL">
        <class>org.hibernate.ejb.test.Apple</class>
        <class>org.hibernate.ejb.test.Distributor</class>
        <class>org.hibernate.ejb.test.Fruit</class>
        <properties>
            <property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver"/>
            <property name="javax.persistence.jdbc.user" value=""/>
            <property name="javax.persistence.jdbc.password" value=""/>
            <property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:."/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/
            <property name="hibernate.max_fetch_depth" value="3"/>
            <property name="hibernate.ejb.classcache.org.hibernate.ejb.test.Item"
                      value="read-write"/>
            <property       name="hibernate.ejb.collectioncache.org.hibernate.ejb.test.Item.distributors"
                            value="read-write, RegionName"/>
        </properties>
    </persistence-unit>
</persistence>