springdatarepository ElasticSearch 在保存时工作，但在更新时失败 java.lang.***Error: null
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【中文标题】springdatarepository ElasticSearch 在保存时工作，但在更新时失败 java.lang.***Error: null【英文标题】：springdatarepository ElasticSearch works on save but fails on update with java.lang.***Error: null 【发布时间】：2021-10-10 20:15:37 【问题描述】：通过springdataelasticsearch 更新我的数据时，我收到java.lang.***Error: null。该应用程序是使用Jhipster 7.0.1 生成的。 Spring Boot 版本为2.4.4.。创建新对象时它可以正常工作，但更新会导致错误。这是CountryAdminUnitTypeService.java的相关部分。
* Save a countryAdminUnitType.
*
* @param countryAdminUnitType the entity to save.
* @return the persisted entity.
*/
public CountryAdminUnitType save(CountryAdminUnitType countryAdminUnitType)
log.debug("Request to save CountryAdminUnitType : ", countryAdminUnitType);
CountryAdminUnitType result = countryAdminUnitTypeRepository.save(countryAdminUnitType);
countryAdminUnitTypeSearchRepository.save(result);
return result;
创建时，对象在调用countryAdminUntiTypeSearchRepository.save(result); 时的外观如下。
result = CountryAdminUnitType@23268 "CountryAdminUnitTypeid=200102, name='Province'"
id = Long@23292 200102
name = "Province"
parent = null
country = Country@23275 "Countryid=183778, name='Turkey', isoCode='TR'"
id = Long@23281 183778
name = "Turkey"
isoCode = "TR"
countryAdminUnitTypes = null
这是 更新时的样子。
result = CountryAdminUnitType@24746 "CountryAdminUnitTypeid=200102, name='Province'"
id = Long@24752 200102
name = "Province"
parent = null
country = Country@24754 "Countryid=183778, name='Turkey', isoCode='TR'"
id = Long@24756 183778
name = "Turkey"
isoCode = "TR"
countryAdminUnitTypes = PersistentSet@24761 size = 1
0 = CountryAdminUnitType@24746 "CountryAdminUnitTypeid=200102, name='Province'"
id = Long@24752 200102
name = "Province"
parent = null
country = Country@24754 "Countryid=183778, name='Turkey', isoCode='TR'"
我看到的唯一区别是countryAdminUnitTypes 在第二种情况下不为空。但是，这应该由下面 Country.java 中给出的JsonIgnoreProperties 处理。
这是一个很长的日志文件的开头。
ERROR 91444 --- [ XNIO-5 task-1] c.s.c.s.CountryAdminUnitTypeService : Exception in save() with cause = 'NULL' and exception = 'null'
java.lang.***Error: null
at org.springframework.data.util.Streamable.stream(Streamable.java:87)
at org.springframework.data.util.Streamable.lambda$map$1(Streamable.java:101)
at org.springframework.data.util.LazyStreamable.stream(LazyStreamable.java:55)
at org.springframework.data.util.LazyStreamable.iterator(LazyStreamable.java:46)
at java.base/java.lang.Iterable.forEach(Iterable.java:74)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeCollectionValue(MappingElasticsearchConverter.java:710)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:620)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperty(MappingElasticsearchConverter.java:601)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperties(MappingElasticsearchConverter.java:553)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:511)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:636)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:627)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperty(MappingElasticsearchConverter.java:601)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperties(MappingElasticsearchConverter.java:553)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:511)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:636)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:627)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.lambda$writeCollectionValue$7(MappingElasticsearchConverter.java:709)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812)
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:294)
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206)
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:161)
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:300)
at java.base/java.util.Spliterators$1Adapter.hasNext(Spliterators.java:681)
at java.base/java.lang.Iterable.forEach(Iterable.java:74)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeCollectionValue(MappingElasticsearchConverter.java:710)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:620)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperty(MappingElasticsearchConverter.java:601)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperties(MappingElasticsearchConverter.java:553)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:511)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:636)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:627)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperty(MappingElasticsearchConverter.java:601)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeProperties(MappingElasticsearchConverter.java:553)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:511)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.writeEntity(MappingElasticsearchConverter.java:636)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.getWriteComplexValue(MappingElasticsearchConverter.java:627)
at org.springframework.data.elasticsearch.core.convert.MappingElasticsearchConverter.lambda$writeCollectionValue$7(MappingElasticsearchConverter.java:709)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812)
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:294)
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206)
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:161)
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:300)
at java.base/java.util.Spliterators$1Adapter.hasNext(Spliterators.java:681)
at java.base/java.lang.Iterable.forEach(Iterable.java:74)
这里是模型类。
CountryAdminUnitType.java
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import java.io.Serializable;
import javax.persistence.*;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.springframework.data.elasticsearch.annotations.FieldType;
/**
* A CountryAdminUnitType.
*/
@Entity
@Table(name = "country_admin_unit_type")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
@org.springframework.data.elasticsearch.annotations.Document(indexName = "countryadminunittype")
public class CountryAdminUnitType implements Serializable
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
@SequenceGenerator(name = "sequenceGenerator")
private Long id;
@Column(name = "name")
private String name;
@ManyToOne
@JsonIgnoreProperties(value = "parent", "country" , allowSetters = true)
private CountryAdminUnitType parent;
@ManyToOne
@JsonIgnoreProperties(
value = "defaultResidenceMeasurementUnit", "countryAdminUnitTypes", "preferences", "personNationalities" ,
allowSetters = true
)
private Country country;
// jhipster-needle-entity-add-field - JHipster will add fields here
public Long getId()
return id;
public void setId(Long id)
this.id = id;
public CountryAdminUnitType id(Long id)
this.id = id;
return this;
public String getName()
return this.name;
public CountryAdminUnitType name(String name)
this.name = name;
return this;
public void setName(String name)
this.name = name;
public CountryAdminUnitType getParent()
return this.parent;
public CountryAdminUnitType parent(CountryAdminUnitType countryAdminUnitType)
this.setParent(countryAdminUnitType);
return this;
public void setParent(CountryAdminUnitType countryAdminUnitType)
this.parent = countryAdminUnitType;
public Country getCountry()
return this.country;
public CountryAdminUnitType country(Country country)
this.setCountry(country);
return this;
public void setCountry(Country country)
this.country = country;
// jhipster-needle-entity-add-getters-setters - JHipster will add getters and setters here
@Override
public boolean equals(Object o)
if (this == o)
return true;
if (!(o instanceof CountryAdminUnitType))
return false;
return id != null && id.equals(((CountryAdminUnitType) o).id);
@Override
public int hashCode()
// see https://vladmihalcea.com/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
return getClass().hashCode();
// prettier-ignore
@Override
public String toString()
return "CountryAdminUnitType" +
"id=" + getId() +
", name='" + getName() + "'" +
"";
Country.java
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.*;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.springframework.data.elasticsearch.annotations.FieldType;
/**
* A Country.
*/
@Entity
@Table(name = "country")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
@org.springframework.data.elasticsearch.annotations.Document(indexName = "country")
public class Country implements Serializable
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
@SequenceGenerator(name = "sequenceGenerator")
private Long id;
@Column(name = "name")
private String name;
@Column(name = "iso_code")
private String isoCode;
@OneToMany(mappedBy = "country")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
@JsonIgnoreProperties(value = "parent", "country" )
private Set<CountryAdminUnitType> countryAdminUnitTypes = new HashSet<>();
// jhipster-needle-entity-add-field - JHipster will add fields here
public Long getId()
return id;
public void setId(Long id)
this.id = id;
public Country id(Long id)
this.id = id;
return this;
public String getName()
return this.name;
public Country name(String name)
this.name = name;
return this;
public void setName(String name)
this.name = name;
public String getIsoCode()
return this.isoCode;
public Country isoCode(String isoCode)
this.isoCode = isoCode;
return this;
public void setIsoCode(String isoCode)
this.isoCode = isoCode;
public Set<CountryAdminUnitType> getCountryAdminUnitTypes()
return this.countryAdminUnitTypes;
public Country countryAdminUnitTypes(Set<CountryAdminUnitType> countryAdminUnitTypes)
this.setCountryAdminUnitTypes(countryAdminUnitTypes);
return this;
public Country addCountryAdminUnitType(CountryAdminUnitType countryAdminUnitType)
this.countryAdminUnitTypes.add(countryAdminUnitType);
countryAdminUnitType.setCountry(this);
return this;
public Country removeCountryAdminUnitType(CountryAdminUnitType countryAdminUnitType)
this.countryAdminUnitTypes.remove(countryAdminUnitType);
countryAdminUnitType.setCountry(null);
return this;
public void setCountryAdminUnitTypes(Set<CountryAdminUnitType> countryAdminUnitTypes)
if (this.countryAdminUnitTypes != null)
this.countryAdminUnitTypes.forEach(i -> i.setCountry(null));
if (countryAdminUnitTypes != null)
countryAdminUnitTypes.forEach(i -> i.setCountry(this));
this.countryAdminUnitTypes = countryAdminUnitTypes;
// jhipster-needle-entity-add-getters-setters - JHipster will add getters and setters here
@Override
public boolean equals(Object o)
if (this == o)
return true;
if (!(o instanceof Country))
return false;
return id != null && id.equals(((Country) o).id);
@Override
public int hashCode()
// see https://vladmihalcea.com/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
return getClass().hashCode();
// prettier-ignore
@Override
public String toString()
return "Country" +
"id=" + getId() +
", name='" + getName() + "'" +
", isoCode='" + getIsoCode() + "'" +
"";
【问题讨论】：
您好，我也遇到了同样的问题，请问您解决了吗？ 【参考方案1】：这是因为 JHipster 如何设置save。它只发生在更新具有双向关系的对象时。
* Save a countryAdminUnitType.
*
* @param countryAdminUnitType the entity to save.
* @return the persisted entity.
*/
public CountryAdminUnitType save(CountryAdminUnitType countryAdminUnitType)
log.debug("Request to save CountryAdminUnitType : ", countryAdminUnitType);
CountryAdminUnitType result = countryAdminUnitTypeRepository.save(countryAdminUnitType);
countryAdminUnitTypeSearchRepository.save(result);
return result;
要更新的对象在传递给jpa repository countryAdminUnitTypeRepository.save(countryAdminUnitType); 时设置正确。但是返回的result对象存在循环依赖，直接转发给elasticsearch repository countryAdminUnitTypeSearchRepository.save(result);进行更新。我只使用对象的id 解决了它。
线
CountryAdminUnitType result = countryAdminUnitTypeRepository.save(countryAdminUnitType);
countryAdminUnitTypeSearchRepository.save(result);
已改为
CountryAdminUnitType result = countryAdminUnitTypeRepository.save(countryAdminUnitType);
countryAdminUnitType.setId(result.getId());
countryAdminUnitTypeSearchRepository.save(countryAdminUnitType);
return result;
【讨论】：
很好的解决方案，谢谢。您对如何使用实体中的注释有任何想法吗？我想这是因为对于双向多对一或单对多关系，此时忽略 JsonIgnoreProperties。这个错误实际上破坏了最初生成的使用弹性搜索的 jhipster 应用程序，应该提升到我想的项目的主线程。我自己可能会很快解决这个问题，但也许你已经有了解决方案？问候 这里是官方线程问题的更通用解决方案：github.com/jhipster/generator-jhipster/issues/…以上是关于springdatarepository ElasticSearch 在保存时工作，但在更新时失败 java.lang.***Error: null的主要内容，如果未能解决你的问题，请参考以下文章
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