从不同的JAR扩展另一个类的JPA持久类

Question

希望有人能帮助我这个问题，因为我找到的所有答案似乎对我不起作用。

在我的myProj webapp下，我有以下内容

./WEB=INF/lib/myproj-user.jar containing this class

@Entity
@Table(name = "user_details")
@Data
@EqualsAndHashCode(callSuper=false)
public class UserDetails extends CommonObject {
    ...
}

.

./WEB=INF/lib/myproj-common.jar containing this class

@MappedSuperclass
public abstract class CommonObject implements Serializable {

    private static final long serialVersionUID = -980608025624315940L;

    @Getter @Setter
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;
    ...
}

我的application-context.xml有这个（application-context.xml有名为hibernate-context和model-context.xml的子XML，但它们一直都很好）

<bean id="commonAuto" class="com.myproj.common.model.CommonObject"/>
<bean id="userDetails" class="com.myproj.user.model.UserDetails"/>

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="annotatedClasses">
        <list>
            <value>com.myproj.common.model.CommonObject</value>             
            <value>com.myproj.user.model.UserDetails</value>    

Answer 1

  @MappedSuperclass
  public abstract class CommonObject implements Serializable {
      private Date createDate;
      public abstract Long getId() ;
      public abstract void setId(Long id);

      public Date getCreateDate() {
            return createDate;
      }

      public void setCreateDate(Date createDate) {
            this.createDate = createDate;
      } 
  }



   @Entity
   @Table
   public class UserDetails extends CommonObject {

        String name;
        int age;

         @GeneratedValue(strategy= GenerationType.AUTO)
         @Id
         private Long id;
         public String getName() {
                 return name;
         }

         public void setName(String name) {
              this.name = name;
         }

         public int getAge() {
               return age;
         }

         public void setAge(int age) {
                this.age = age;
         }

         public Long getId() {
                 return id;
         }

         public void setId(Long id) {
             this.id = id;
         }
   }