I trying to implement a database with a many-to-many relationship.The database has been built, now we need queries to it. I’m using this article as an example: https://www.bezkoder.com/jpa-many-to-many/. When I create custom finder in Repository – server crushes at running.
I have two Entity: MassageEntity and RstringsEntity. I’m trying to create a method List<MasageEntity> findMasageEntitiesByRstringsEntitiesId(Long string_id);. Without that method server starts.
This is what the error looks like.
JavaScript
x
2022-04-09 22:08:39.091 ERROR 9672 --- [ restartedMain] o.s.boot.SpringApplication : Application run failedorg.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'massegeController': Unsatisfied dependency expressed through field 'Massage_repo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'massage_repo' defined in Dyplom.rString.repository.massage_repo defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! Reason: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'!; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'! at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.17.jar:5.3.17] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.17.jar:5.3.17] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.5.jar:2.6.5] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.5.jar:2.6.5] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.5.jar:2.6.5] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.5.jar:2.6.5] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.5.jar:2.6.5] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.5.jar:2.6.5] at Dyplom.rString.RStringApplication.main(RStringApplication.java:10) ~[main/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.6.5.jar:2.6.5]Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'massage_repo' defined in Dyplom.rString.repository.massage_repo defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! Reason: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'!; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'! at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) ~[spring-beans-5.3.17.jar:5.3.17] 25 common frames omittedCaused by: org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! Reason: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'!; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'! at org.springframework.data.repository.query.QueryCreationException.create(QueryCreationException.java:101) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:106) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(QueryExecutorMethodInterceptor.java:94) ~[spring-data-commons-2.6.3.jar:2.6.3] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) ~[na:na] at java.base/java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1056) ~[na:na] at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na] at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na] at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na] at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.mapMethodsToQuery(QueryExecutorMethodInterceptor.java:96) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$new$0(QueryExecutorMethodInterceptor.java:86) ~[spring-data-commons-2.6.3.jar:2.6.3] at java.base/java.util.Optional.map(Optional.java:260) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.<init>(QueryExecutorMethodInterceptor.java:86) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:364) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:322) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.util.Lazy.getNullable(Lazy.java:230) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.util.Lazy.get(Lazy.java:114) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:328) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144) ~[spring-data-jpa-2.6.3.jar:2.6.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.17.jar:5.3.17] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.17.jar:5.3.17] 35 common frames omittedCaused by: java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List Dyplom.rString.repository.massage_repo.findMassageentByRstringsentsId(java.lang.Long)! No property 'rstringsentsId' found for type 'Masageent'! at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:96) ~[spring-data-jpa-2.6.3.jar:2.6.3] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:113) ~[spring-data-jpa-2.6.3.jar:2.6.3] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:254) ~[spring-data-jpa-2.6.3.jar:2.6.3] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:87) ~[spring-data-jpa-2.6.3.jar:2.6.3] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:102) ~[spring-data-commons-2.6.3.jar:2.6.3] 57 common frames omittedCaused by: org.springframework.data.mapping.PropertyReferenceException: No property 'rstringsentsId' found for type 'Masageent'! at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:90) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:437) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:413) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.mapping.PropertyPath.lambda$from$0(PropertyPath.java:366) ~[spring-data-commons-2.6.3.jar:2.6.3] at java.base/java.util.concurrent.ConcurrentMap.computeIfAbsent(ConcurrentMap.java:330) ~[na:na] at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:348) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:331) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.query.parser.Part.<init>(Part.java:81) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.query.parser.PartTree$OrPart.lambda$new$0(PartTree.java:249) ~[spring-data-commons-2.6.3.jar:2.6.3] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na] at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na] at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na] at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na] at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na] at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:250) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.query.parser.PartTree$Predicate.lambda$new$0(PartTree.java:383) ~[spring-data-commons-2.6.3.jar:2.6.3] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na] at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na] at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na] at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na] at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na] at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:384) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:95) ~[spring-data-commons-2.6.3.jar:2.6.3] at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:89) ~[spring-data-jpa-2.6.3.jar:2.6.3] 61 common frames omittedNow i show some code.
RstringEntity.java
JavaScript
package Dyplom.rString.entity;import javax.persistence.*;import java.util.HashSet;import java.util.Set;@Entity@Table(name = "string")public class RstringsEntity { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private long id; @Column(name = "name") private String name; @Column(name="code") private String code; @ManyToMany(fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE }) @JoinTable(name = "string_massage", joinColumns = { @JoinColumn(name = "string_id",referencedColumnName = "id"), }, inverseJoinColumns = { @JoinColumn(name = "massage_id",referencedColumnName = "id") }) private Set<MasageEntity> massagess = new HashSet<>(); public RstringsEntity(String name, String description) { this.name = name; this.code = code; } public RstringsEntity() { } // getters and setters public void addMassage(MasageEntity massage) { this.massagess.add(massage); massage.getMassages().add(this); } public void removeMassage(long mId) { MasageEntity massage = this.massagess.stream().filter(t -> t.getId() == mId).findFirst().orElse(null); if (massage != null) this.massagess.remove(massage); massage.getMassages().remove(this); } /* @ManyToMany() private List<rStringsMassageEntity> massages; */ public long getId() { return id; } public void setId(long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getCode() { return code; } public void setCode(String code) { this.code = code; }}MassageEntity.java
JavaScript
package Dyplom.rString.entity;import com.fasterxml.jackson.annotation.JsonIgnore;import javax.persistence.*;import java.util.HashSet;import java.util.Set;@Entity@Table(name = "massages")public class MasageEntity { @Id @GeneratedValue (strategy = GenerationType.IDENTITY) private Long id; @Column(name = "string_text") private String string_text; @Column(name = "string_speed") private Long string_speed; @Column(name = "string_color_type") private Long string_color_type; @Column(name = "string_color") private String string_color; @Column(name = "string_timing_type") private String string_timing_type; @Column(name = "string_timing") private String string_timing; @ManyToMany(fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE }, mappedBy = "massagess") @JsonIgnore private Set<RstringsEntity> strings = new HashSet<>(); public MasageEntity() { } public long getId() { return id; } public void setId(Long id) { this.id = id; } public String getString_text() { return string_text; } public void setString_text(String string_text) { this.string_text = string_text; } public Long getString_speed() { return string_speed; } public void setString_speed(Long string_speed) { this.string_speed = string_speed; } public Long getString_color_type() { return string_color_type; } public void setString_color_type(Long string_color_type) { this.string_color_type = string_color_type; } public String getString_color() { return string_color; } public void setString_color(String string_color) { this.string_color = string_color; } public String getString_timing_type() { return string_timing_type; } public void setString_timing_type(String string_timing_type) { this.string_timing_type = string_timing_type; } public String getString_timing() { return string_timing; } public void setString_timing(String string_timing) { this.string_timing = string_timing; } public Set<RstringsEntity> getMassages() { return strings; } public void setTutorials(Set<RstringsEntity> strings) { this.strings = strings; }}strings_repo.java
JavaScript
package Dyplom.rString.repository;import Dyplom.rString.entity.RstringsEntity;import org.springframework.data.jpa.repository.JpaRepository;import org.springframework.stereotype.Repository;import java.util.List;@Repositorypublic interface strings_repo extends JpaRepository<RstringsEntity, Long> { RstringsEntity findByName(String name); RstringsEntity findRstringsEntitiesById(Long string_id); List<RstringsEntity> findRstringsEntitiesByMasageEntitiesId(Long massage_id);}massage_repo.java
JavaScript
package Dyplom.rString.repository;import Dyplom.rString.entity.MasageEntity;import Dyplom.rString.entity.RstringsEntity;import org.springframework.data.jpa.repository.JpaRepository;import org.springframework.stereotype.Repository;import java.util.List;@Repositorypublic interface massage_repo extends JpaRepository <MasageEntity, Long> { MasageEntity findMasageEntitiesById(Long massage_id); List<MasageEntity> findMasageEntitiesByRstringsEntitiesId(Long string_id); List<MasageEntity> findMasageEntityByRstringsEntityId(Long string_id);}I don’t see the point in showing the controller, since the error occurs elsewhere.
What’s I doing wrong? Maybe I need some settings or dependencies? Or I can solve the problem in a different way?
Advertisement
Answer
Your problem is the name of the query method: findMasageEntitiesByRstringsEntitiesId(Long. You need to use the field name from your entity class, not the class name.
I would try findMasageEntitiesByStringsId(Long.... (It’s also a bit confusing that you’ve given the variable one name and the getter method another, not sure if JPA will like that.)
The other methods which returns a list also suffer from the same problem.