JPA varlık kimliğini JSON çıktısı alınamıyor

Question

Spring-Data-JPA ve Spring-Data-Rest ile bir POC deniyoruz. Çıktı, istisna olarak görünüyor, kimlik dışındaki kimlik alanlarımızın değerlerine sahibiz, kimlik alanı bir Soyut sınıfında belirlendi.

AbstractPersistable'ın basit bir varlık cadı uzantısını kullanıyoruz (bu bir spring-data-jpa sınıfı http://docs.spring.io/spring-data/jpa/docs/current/api/org/springframework/data/jpa/domain/AbstractPersistable.html). İşte

bu bir kaynak kodu:

@MappedSuperclass 
public abstract class AbstractPersistable<PK extends Serializable> implements Persistable<PK> { 

    private static final long serialVersionUID = -5554308939380869754L; 

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

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Persistable#getId() 
    */ 
    public PK getId() { 

     return id; 
    } 

    /** 
    * Sets the id of the entity. 
    * 
    * @param id the id to set 
    */ 
    protected void setId(final PK id) { 

     this.id = id; 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Persistable#isNew() 
    */ 
    public boolean isNew() { 

     return null == getId(); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see java.lang.Object#toString() 
    */ 
    @Override 
    public String toString() { 

     return String.format("Entity of type %s with id: %s", this.getClass().getName(), getId()); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see java.lang.Object#equals(java.lang.Object) 
    */ 
    @Override 
    public boolean equals(Object obj) { 

     if (null == obj) { 
      return false; 
     } 

     if (this == obj) { 
      return true; 
     } 

     if (!getClass().equals(obj.getClass())) { 
      return false; 
     } 

     AbstractPersistable<?> that = (AbstractPersistable<?>) obj; 

     return null == this.getId() ? false : this.getId().equals(that.getId()); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see java.lang.Object#hashCode() 
    */ 
    @Override 
    public int hashCode() { 

     int hashCode = 17; 

     hashCode += null == getId() ? 0 : getId().hashCode() * 31; 

     return hashCode; 
    } 
} 

ve bizim varlık: o zaman

@Entity 
@Table(name = "TEST_ENTITY") 
public class TestEntity extends AbstractPersistable<Long> { 

    @Column(name = "TITLE", nullable = false, length = 100) 
    private String title; 

    @Column(name = "DESCRIPTION", length = 500) 
    private String description; 

    @ManyToOne(fetch = FetchType.LAZY, optional = false) 
    @JoinColumn(name = "GLOBAL_DATATYPE_ID", referencedColumnName = "ID", nullable = false, updatable = false) 
    private GlobalDataType dataType; 

    @Enumerated(EnumType.STRING) 
    @Column(name = "VALUE_TYPE", nullable = false, length = 30) 
    private ValueType valueType; 

    @Enumerated(EnumType.STRING) 
    @Column(name = "ATTRIBUTE_TYPE", nullable = false, length = 30) 
    private AttributeType attributeType; 

    @Column(name = "FE_DISPLAY") 
    @Convert(converter=BooleanTFConverter.class) 
    private Boolean feDisplay; 

{... getter setter equals hashcode toString ...} 
} 

hizmeti (kullanarak yay veri dinlenme):

@RepositoryRestResource(path = "test") 
public interface TestEntityRepository extends JpaRepository<TestEntity, Long> { 
} 

Uygulamayı İlkbahar önyükleme ile çalıştırıyoruz ve Chrome'daki çıktı (URL http://localhost:8080/test) bir JSON + HAL veridir (kimlik gösterilmiyor ed !!!):

{ 
    "_links" : { 
    "self" : { 
     "href" : "http://localhost:8080/test{?page,size,sort}", 
     "templated" : true 
    } 
    }, 
    "_embedded" : { 
    "testEntities" : [ { 
     "title" : "Test", 
     "description" : "TEST", 
     "valueType" : "SINGLE", 
     "attributeType" : "ATTRIBUTE", 
     "feDisplay" : true, 
     "new" : false, 
     "_links" : { 
     "self" : { 
      "href" : "http://localhost:8080/test/1" 
     }, 
     "dataType" : { 
      "href" : "http://localhost:8080/test/1/dataType" 
     } 
     } 
    } ] 
    }, 
    "page" : { 
    "size" : 20, 
    "totalElements" : 1, 
    "totalPages" : 1, 
    "number" : 0 
    } 
} 

Ve TestEntity (http://docs.spring.io/spring-data/jpa/docs/current/api/org/springframework/data/jpa/domain/AbstractAuditable.html) üzerine AbstractAuditable kullandığınızda başka bir şeydir, o inşaat, biz AbstractAuditable gelen alanlar değerleri almak ama biz hala kimliği alamadım ...

@Entity 
@Table(name = "TEST_ENTITY") 
public class TestEntity extends AbstractAuditable<User, Long> { 
... 
} 

@MappedSuperclass 
public abstract class AbstractAuditable<U, PK extends Serializable> extends AbstractPersistable<PK> implements 
     Auditable<U, PK> { 

    private static final long serialVersionUID = 141481953116476081L; 

    @ManyToOne(fetch = FetchType.LAZY, optional = false) 
    @JoinColumn(name = "CREATED_BY", referencedColumnName = "ID", nullable = false, updatable = false) 
    private U createdBy; 

    @Temporal(TemporalType.TIMESTAMP) 
    @Column(name = "CREATED_DATE") 
    private Date createdDate; 

    @ManyToOne(fetch = FetchType.LAZY, optional = false) 
    @JoinColumn(name = "LAST_MODIFIED_BY", referencedColumnName = "ID", nullable = false, updatable = false) 
    private U lastModifiedBy; 

    @Temporal(TemporalType.TIMESTAMP) 
    @Column(name = "LAST_MODIFIED_DATE") 
    private Date lastModifiedDate; 

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Auditable#getCreatedBy() 
    */ 
    public U getCreatedBy() { 

     return createdBy; 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see 
    * org.springframework.data.domain.Auditable#setCreatedBy(java.lang.Object) 
    */ 
    public void setCreatedBy(final U createdBy) { 

     this.createdBy = createdBy; 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Auditable#getCreatedDate() 
    */ 
    public DateTime getCreatedDate() { 

     return null == createdDate ? null : new DateTime(createdDate); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see 
    * org.springframework.data.domain.Auditable#setCreatedDate(org.joda.time 
    * .DateTime) 
    */ 
    public void setCreatedDate(final DateTime createdDate) { 

     this.createdDate = null == createdDate ? null : createdDate.toDate(); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Auditable#getLastModifiedBy() 
    */ 
    public U getLastModifiedBy() { 

     return lastModifiedBy; 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see 
    * org.springframework.data.domain.Auditable#setLastModifiedBy(java.lang 
    * .Object) 
    */ 
    public void setLastModifiedBy(final U lastModifiedBy) { 

     this.lastModifiedBy = lastModifiedBy; 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see org.springframework.data.domain.Auditable#getLastModifiedDate() 
    */ 
    public DateTime getLastModifiedDate() { 

     return null == lastModifiedDate ? null : new DateTime(lastModifiedDate); 
    } 

    /* 
    * (non-Javadoc) 
    * 
    * @see 
    * org.springframework.data.domain.Auditable#setLastModifiedDate(org.joda 
    * .time.DateTime) 
    */ 
    public void setLastModifiedDate(final DateTime lastModifiedDate) { 

     this.lastModifiedDate = null == lastModifiedDate ? null : lastModifiedDate.toDate(); 
    } 
} 

Ve JSON + HAL sonucu:

{ 
    "_links" : { 
    "self" : { 
     "href" : "http://localhost:8080/test{?page,size,sort}", 
     "templated" : true 
    } 
    }, 
    "_embedded" : { 
    "testEntities" : [ { 
     "createdBy" : { 
     "username" : "xxx.admin" 
     }, 
     "createdDate" : { 
     "year" : 2014, 
     "era" : 1, 
     "dayOfYear" : 282, 
     "dayOfWeek" : 4, 
     "dayOfMonth" : 9, 
     "weekOfWeekyear" : 41, 
     "monthOfYear" : 10, 
     "yearOfEra" : 2014, 
     "yearOfCentury" : 14, 
     "centuryOfEra" : 20, 
     "weekyear" : 2014, 
     "millisOfSecond" : 0, 
     "millisOfDay" : 65724000, 
     "secondOfMinute" : 24, 
     "secondOfDay" : 65724, 
     "minuteOfHour" : 15, 
     "minuteOfDay" : 1095, 
     "hourOfDay" : 18, 
     "chronology" : { 
      "zone" : { 
      "fixed" : false, 
      "uncachedZone" : { 
       "cachable" : true, 
       "fixed" : false, 
       "id" : "Europe/London" 
      }, 
      "id" : "Europe/London" 
      } 
     }, 
     "zone" : { 
      "fixed" : false, 
      "uncachedZone" : { 
      "cachable" : true, 
      "fixed" : false, 
      "id" : "Europe/London" 
      }, 
      "id" : "Europe/London" 
     }, 
     "millis" : 1412874924000, 
     "afterNow" : false, 
     "beforeNow" : true, 
     "equalNow" : false 
     }, 
     "lastModifiedBy" : null, 
     "lastModifiedDate" : { 
     "year" : 2014, 
     "era" : 1, 
     "dayOfYear" : 282, 
     "dayOfWeek" : 4, 
     "dayOfMonth" : 9, 
     "weekOfWeekyear" : 41, 
     "monthOfYear" : 10, 
     "yearOfEra" : 2014, 
     "yearOfCentury" : 14, 
     "centuryOfEra" : 20, 
     "weekyear" : 2014, 
     "millisOfSecond" : 0, 
     "millisOfDay" : 65731000, 
     "secondOfMinute" : 31, 
     "secondOfDay" : 65731, 
     "minuteOfHour" : 15, 
     "minuteOfDay" : 1095, 
     "hourOfDay" : 18, 
     "chronology" : { 
      "zone" : { 
      "fixed" : false, 
      "uncachedZone" : { 
       "cachable" : true, 
       "fixed" : false, 
       "id" : "Europe/London" 
      }, 
      "id" : "Europe/London" 
      } 
     }, 
     "zone" : { 
      "fixed" : false, 
      "uncachedZone" : { 
      "cachable" : true, 
      "fixed" : false, 
      "id" : "Europe/London" 
      }, 
      "id" : "Europe/London" 
     }, 
     "millis" : 1412874931000, 
     "afterNow" : false, 
     "beforeNow" : true, 
     "equalNow" : false 
     }, 
     "title" : "Test", 
     "description" : "TEST", 
     "valueType" : "SINGLE", 
     "attributeType" : "ATTRIBUTE", 
     "feDisplay" : true, 
     "new" : false, 
     "_links" : { 
     "self" : { 
      "href" : "http://localhost:8080/test/1" 
     }, 
     "dataType" : { 
      "href" : "http://localhost:8080/test/1/dataType" 
     } 
     } 
    } ] 
    }, 
    "page" : { 
    "size" : 20, 
    "totalElements" : 1, 
    "totalPages" : 1, 
    "number" : 0 
    } 
} 

DÜZENLEME: Çözüm

@Configuration 
@EnableTransactionManagement 
@Import(RepositoryRestMvcConfiguration.class) 
@EnableJpaRepositories(basePackages="uk.co.xxx.marketplace.data.repository") 
@PropertySources({@PropertySource("classpath:hibernate.properties"),@PropertySource("classpath:persistence.properties")}) 
@ComponentScan(value = "uk.co.xxx.marketplace.data") 
@EnableAutoConfiguration 
public class Application { 
... 
} 

Fiili:

@Configuration 
@EnableTransactionManagement 
@Import(MyRepositoryRestMvcConfiguration.class) 
@EnableJpaRepositories(basePackages="uk.co.xxx.marketplace.data.repository") 
@PropertySources({@PropertySource("classpath:hibernate.properties"),@PropertySource("classpath:persistence.properties")}) 
@ComponentScan(value = "uk.co.xxx.marketplace.data") 
@EnableAutoConfiguration 
public class Application { 
... 
} 

Answer 1

Derslere alt sınıf

@Configuration 
public class MyRepositoryRestMvcConfiguration extends RepositoryRestMvcConfiguration { 

    protected void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) { 
     config.exposeIdsFor(TestEntity.class); 
    } 
} 

Sonra

önce @import senin Uygulama java yapılandırma sınıfında değiştirmek özel bir RepositoryRestMvcConfiguration ekle Bahar MV kullanıyorsanız RepositoryRestConfiguration (veya RepositoryRestMVCConfiguration C) ve exposeIdsFor() yöntemini, kimlikleri ifşa etmek istediğiniz etki alanı sınıflarınızla çağırın.