无法创建所请求的服务[org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]-MySQL

我是Hibernate的新手。我目前正在使用Spring Boot框架，并尝试通过Hibernate创建数据库表。\n我知道之前有人问过同样的问题，但我似乎无法根据我的环境解决错误。\nhibernate.cfg.xml\n

    
    org.mm.mysql.Driver
    jdbc:mysql://localhost:3306
    user
    pass
    
    true
    
    org.hibernate.MySQLDialect
    
    org.hibernate.NoCacheProvider
    
    1
    
    update
    
    

\n主类\n

public static void main(String[] args) throws Exception {
    SpringApplication.run(WebApplication.class, args);
    Configuration cfg = new Configuration();
    cfg.configure("hibernate.cfg.xml");
    SessionFactory factory = cfg.buildSessionFactory();
    Session session = factory.openSession();
    Transaction t = session.beginTransaction();
    AdultParticipant ap = new AdultParticipant();
    ap.setFirstName("User"); 
    ap.setLastName("UserLastName");
    session.persist(ap);
    t.commit();
    session.close();
    System.out.println("保存成功");
}

\nPOJO类\n

@Entity
@Table(name = "adultparticipant")
public class AdultParticipant {
    @GeneratedValue
    @Id
    @Column(name = "id")
    private int id;
    @Column(name = "firstName")
    private String firstName;
    @Column(name = "lastName")
    private String lastName;
    
    public int getId() {
        return id;
    }
    
    public void setId(int id) {
        this.id = id;
    }
    
    public String getFirstName() {
        return firstName;
    }
    
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    
    public String getLastName() {
        return lastName;
    }
    
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
}

\nDAOImpl类\n

public class AdultParticipantDAOImpl implements AdultParticipantDAO {
    private SessionFactory sessionFactory;
    
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
    
    @Override
    public void save(AdultParticipant ap) {
        Session session = this.sessionFactory.openSession();
        Transaction tx = session.beginTransaction();
        session.persist(ap);
        tx.commit();
        session.close();
    }
    
    @SuppressWarnings("unchecked")
    @Override
    public List list() {
        Session session = this.sessionFactory.openSession();
        List adultParticipants = session.createQuery("from AdultParticipant").list();
        session.close();
        return adultParticipants;
    }
}

\nDAO类\n

public interface AdultParticipantDAO {
    public void save(AdultParticipant ap);
    public List list();
}

\nPOM.xml\n

    4.0.0
    hello-springboot
    hello-springboot
    hello-springboot
    war
    
        org.springframework.boot
        spring-boot-starter-parent
        1.3.5.RELEASE
    
    
        1.8
    
    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter-tomcat
            provided
        
        
            org.apache.tomcat.embed
            tomcat-embed-jasper
            provided
        
        
            mysql
            mysql-connector-java
            5.1.40
        
    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

\n控制台错误信息\n

2017-03-13 11:48:40.512  WARN 9532 --- [           main] org.hibernate.orm.connections.pooling    : HHH10001002: Using H
ibernate built-in connection pool (not for production use!)
Exception in thread "main" org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate
.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:271)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)