您好我正在尝试使用spring jpa从MySql db中提取记录。
实体1
@Entity @Table(name = "sku_warehouse") @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE) @Document(indexName = "skuwarehouse") public class SkuWarehouse extends AbstractAuditingEntity implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "avail_qty")
private Integer availQty;
@Column(name = "effective_date")
private ZonedDateTime effectiveDate;
@Column(name = "expiration_date")
private ZonedDateTime expirationDate;
@ManyToOne
private SkuMaster skuMaster;
@ManyToOne
private Country country;
@ManyToOne
private Warehouse warehouse;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Integer getAvailQty() {
return availQty;
}
public SkuWarehouse availQty(Integer availQty) {
this.availQty = availQty;
return this;
}
public void setAvailQty(Integer availQty) {
this.availQty = availQty;
}
public ZonedDateTime getEffectiveDate() {
return effectiveDate;
}
public SkuWarehouse effectiveDate(ZonedDateTime effectiveDate) {
this.effectiveDate = effectiveDate;
return this;
}
public void setEffectiveDate(ZonedDateTime effectiveDate) {
this.effectiveDate = effectiveDate;
}
public ZonedDateTime getExpirationDate() {
return expirationDate;
}
public SkuWarehouse expirationDate(ZonedDateTime expirationDate) {
this.expirationDate = expirationDate;
return this;
}
public void setExpirationDate(ZonedDateTime expirationDate) {
this.expirationDate = expirationDate;
}
public SkuMaster getSkuMaster() {
return skuMaster;
}
public SkuWarehouse skuMaster(SkuMaster skuMaster) {
this.skuMaster = skuMaster;
return this;
}
public void setSkuMaster(SkuMaster skuMaster) {
this.skuMaster = skuMaster;
}
public Country getCountry() {
return country;
}
public SkuWarehouse country(Country country) {
this.country = country;
return this;
}
public void setCountry(Country country) {
this.country = country;
}
public Warehouse getWarehouse() {
return warehouse;
}
public SkuWarehouse warehouse(Warehouse warehouse) {
this.warehouse = warehouse;
return this;
}
public void setWarehouse(Warehouse warehouse) {
this.warehouse = warehouse;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
SkuWarehouse skuWarehouse = (SkuWarehouse) o;
if (skuWarehouse.id == null || id == null) {
return false;
}
return Objects.equals(id, skuWarehouse.id);
}
@Override
public int hashCode() {
return Objects.hashCode(id);
}
@Override
public String toString() {
return "SkuWarehouse{" +
"id=" + id +
", availQty='" + availQty + "'" +
", effectiveDate='" + effectiveDate + "'" +
", expirationDate='" + expirationDate + "'" +
'}';
} }
实体2：
@Entity
@Table(name = "sku_master")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@Document(indexName = "skumaster")
public class SkuMaster extends AbstractAuditingEntity implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "ordering_item")
private String orderingItem;
@NotNull
@Column(name = "sku_number", nullable = false)
private String skuNumber;
@Column(name = "sku_description")
private String skuDescription;
@Column(name = "brand_name")
private String brandName;
@Column(name = "item_status")
private String itemStatus;
@Column(name = "item_weight")
private Float itemWeight;
@Column(name = "item_tax_cd")
private String itemTaxCd;
@Enumerated(EnumType.STRING)
@Column(name = "vendor_ship_cd")
private Flag vendorShipCd;
@Column(name = "ltu_quantity")
private String ltuQuantity;
@ManyToMany
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@JoinTable(name = "sku_master_country",
joinColumns = @JoinColumn(name="sku_masters_id", referencedColumnName="id"),
inverseJoinColumns = @JoinColumn(name="countries_id", referencedColumnName="id"))
private Set<Country> countries = new HashSet<>();
@ManyToMany
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@JoinTable(name = "sku_master_warehouse",
joinColumns = @JoinColumn(name="sku_masters_id", referencedColumnName="id"),
inverseJoinColumns = @JoinColumn(name="warehouses_id", referencedColumnName="id"))
private Set<Warehouse> warehouses = new HashSet<>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getOrderingItem() {
return orderingItem;
}
public SkuMaster orderingItem(String orderingItem) {
this.orderingItem = orderingItem;
return this;
}
public void setOrderingItem(String orderingItem) {
this.orderingItem = orderingItem;
}
public String getSkuNumber() {
return skuNumber;
}
public SkuMaster skuNumber(String skuNumber) {
this.skuNumber = skuNumber;
return this;
}
public void setSkuNumber(String skuNumber) {
this.skuNumber = skuNumber;
}
public String getSkuDescription() {
return skuDescription;
}
public SkuMaster skuDescription(String skuDescription) {
this.skuDescription = skuDescription;
return this;
}
public void setSkuDescription(String skuDescription) {
this.skuDescription = skuDescription;
}
public String getBrandName() {
return brandName;
}
public SkuMaster brandName(String brandName) {
this.brandName = brandName;
return this;
}
public void setBrandName(String brandName) {
this.brandName = brandName;
}
public String getItemStatus() {
return itemStatus;
}
public SkuMaster itemStatus(String itemStatus) {
this.itemStatus = itemStatus;
return this;
}
public void setItemStatus(String itemStatus) {
this.itemStatus = itemStatus;
}
public Float getItemWeight() {
return itemWeight;
}
public SkuMaster itemWeight(Float itemWeight) {
this.itemWeight = itemWeight;
return this;
}
public void setItemWeight(Float itemWeight) {
this.itemWeight = itemWeight;
}
public String getItemTaxCd() {
return itemTaxCd;
}
public SkuMaster itemTaxCd(String itemTaxCd) {
this.itemTaxCd = itemTaxCd;
return this;
}
public void setItemTaxCd(String itemTaxCd) {
this.itemTaxCd = itemTaxCd;
}
public Flag getVendorShipCd() {
return vendorShipCd;
}
public SkuMaster vendorShipCd(Flag vendorShipCd) {
this.vendorShipCd = vendorShipCd;
return this;
}
public void setVendorShipCd(Flag vendorShipCd) {
this.vendorShipCd = vendorShipCd;
}
public String getLtuQuantity() {
return ltuQuantity;
}
public SkuMaster ltuQuantity(String ltuQuantity) {
this.ltuQuantity = ltuQuantity;
return this;
}
public void setLtuQuantity(String ltuQuantity) {
this.ltuQuantity = ltuQuantity;
}
public Set<Country> getCountries() {
return countries;
}
public SkuMaster countries(Set<Country> countries) {
this.countries = countries;
return this;
}
public SkuMaster addCountry(Country country) {
this.countries.add(country);
return this;
}
public SkuMaster removeCountry(Country country) {
this.countries.remove(country);
return this;
}
public void setCountries(Set<Country> countries) {
this.countries = countries;
}
public Set<Warehouse> getWarehouses() {
return warehouses;
}
public SkuMaster warehouses(Set<Warehouse> warehouses) {
this.warehouses = warehouses;
return this;
}
public SkuMaster addWarehouse(Warehouse warehouse) {
this.warehouses.add(warehouse);
return this;
}
public SkuMaster removeWarehouse(Warehouse warehouse) {
this.warehouses.remove(warehouse);
return this;
}
public void setWarehouses(Set<Warehouse> warehouses) {
this.warehouses = warehouses;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
SkuMaster skuMaster = (SkuMaster) o;
if (skuMaster.id == null || id == null) {
return false;
}
return Objects.equals(id, skuMaster.id);
}
@Override
public int hashCode() {
return Objects.hashCode(id);
}
@Override
public String toString() {
return "SkuMaster{" +
"id=" + id +
", orderingItem='" + orderingItem + "'" +
", skuNumber='" + skuNumber + "'" +
", skuDescription='" + skuDescription + "'" +
", brandName='" + brandName + "'" +
", itemStatus='" + itemStatus + "'" +
", itemWeight='" + itemWeight + "'" +
", itemTaxCd='" + itemTaxCd + "'" +
", vendorShipCd='" + vendorShipCd + "'" +
", ltuQuantity='" + ltuQuantity + "'" +
'}';
}
}
拉取记录的方法
@Query("select sw from SkuWarehouse sw left join fetch Warehouse w where sw.warehouse = w.warehouseId AND w.warehouseId=:warehouseId AND sw.skuMaster=:skuMasterId")
SkuWarehouse findOneWithEagerRelationships(@Param("warehouseId") String warehouseId, @Param("skuMasterId") Long skuMasterId);
实际上SQL查询有效
select * from sku_warehouse sw
join warehouse w on (sw.warehouse_id = w.id)
where w.warehouse_id='024'
and sw.sku_master_id='1072'
错误记录
Caused by: org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private java.lang.Long com.company.wmapis.domain.SkuMaster.id] by reflection for persistent property [com.company.wmapis.domain.SkuMaster#id] : 1454
at org.hibernate.property.access.spi.GetterFieldImpl.get(GetterFieldImpl.java:71)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:224)
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4647)
at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4358)
at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:226)
at org.hibernate.engine.internal.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:276)
at org.hibernate.type.EntityType.getIdentifier(EntityType.java:462)
at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:161)
at org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:53)
at org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:628)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1956)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1909)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1887)
at org.hibernate.loader.Loader.doQuery(Loader.java:932)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349)
at org.hibernate.loader.Loader.doList(Loader.java:2615)
at org.hibernate.loader.Loader.doList(Loader.java:2598)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2430)
at org.hibernate.loader.Loader.list(Loader.java:2425)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:502)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:371)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1459)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1426)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1398)
at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1444)
at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:210)
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:82)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:116)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:106)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:482)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:460)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
... 167 common frames omitted
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.Long field com.company.wmapis.domain.SkuMaster.id to java.lang.Long
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:58)
at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:36)
at java.lang.reflect.Field.get(Field.java:393)
at org.hibernate.property.access.spi.GetterFieldImpl.get(GetterFieldImpl.java:67)
... 206 common frames omitted
Jpa查询有什么问题？我甚至试过传递SkuMaster对象而不是Long，但后来我得到了MySql查询异常。
答案 0 :(得分：2)
在我更改了我的Jpa查询和方法后，它可以正常工作
@Query(value="SELECT * FROM sku_warehouse sw JOIN warehouse w ON (sw.warehouse_id = w.Id) WHERE w.warehouse_id=?1 AND sw.sku_master_id=?2", nativeQuery = true)
SkuWarehouse findOneWithEagerRelationships(String warehouseId, Long skuMasterId);