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伙计!我有非常奇怪的问题休眠5. 我收到线程“主”异常org.hibernate.MappingException:未知实体:com.rosko.Merchandiser当我删除configuration.addAnnotatedClass(com.rosko.Merchandiser.class)Hibernate错误 - org.hibernate.MappingException:未知实体:
HibernateUtil.java
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
Configuration configuration = new Configuration();
configuration.configure();
/* **With this line, everyting is working..** configuration.addAnnotatedClass(com.rosko.Merchandiser.class);*/
return configuration.buildSessionFactory(
new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build());
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("There was an error building the factory");
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}}
Application.java
公共类应用{
public static void main(String[] args) {
Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
Merchandiser merchant = new Merchandiser();
merchant.setAddress("Viena");
merchant.setName("sadkada");
session.save(merchant);
session.getTransaction().commit();
session.close();
}
}
的hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/finance?serverTimezone=UTC</property>
<property name="connection.username">root</property>
<property name="connection.password">rozeto90</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<mapping class="com.rosko.Merchandiser" />
</session-factory>
Merchandiser.java
@Entity
@Table(name="merchandiser")
public class Merchandiser {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(name="name")
private String name;
@Column(name= "address")
private String address;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
我只能使用映射类xml文件?
此致敬礼。
尝试在调试模式下运行,看是否'configuration.configure()'找到exepcted的hibernate.cfg.xml – davidxxx