Hibernate斑点

Question

我尝试在我的DB中更新一个表“image”并插入blob类型。

public static void main (String args[]) throws FileNotFoundException{
        SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
        Session session = sessionFactory.getCurrentSession();
        Transaction tx = session.beginTransaction();
        File image = new File("c://img//button.png");   
        System.out.println("file esistente ? "+image.exists());
        InputStream in = new FileInputStream(image);
        Blob blob = Hibernate.getLobCreator(session)    
                .createBlob(in, image.length());        
        Image imageClass = new Image();
        imageClass.setImage(blob);
        imageClass.setName("blobTry");
        session.save(imageClass);
        session.getTransaction().commit();
        sessionFactory.close();
    }

ImageClass：

   @Entity
@Table(name = "IMAGE")
public class Image {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "ID")
    private int id;

    @Column(name = "NAME")
    private String name;

    @Column(name = "IMAGE")
    private Blob image;

        /* ... auto generated getters / setters */
    }

Hibernate用户映射：

 <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/hibernatetutorial</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="hibernate.jdbc.batch_size">0</property> 
        <property name="hibernate.current_session_context_class">thread</property>
        <property name="hibernate.show_sql">true</property>

        <mapping class="com.journaldev.hibernate.model.Image" />

利布：

错误：

Answer 1

我从这篇文章中获得了以下答案

AbstractMethodError表示您的JDBC驱动程序的PreparedStatements不实现setBlob（int,InputStream,long）。

使用较旧的setBlob（int,Blob）或更新驱动程序（Connector/J5.1实现了Jdbc 4.0，这应该是setBlob（int,InputStream,long）所需要的）