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Spring Hibernate Forgeinのキー制約

2016-11-23 22 views
1

私は、休止状態と外部キー制約に関して問題があります。Spring Hibernate Forgeinのキー制約

私は次のシナリオ（擬似Javaコード）を取得しました。私は、親クラス（学科）

@Entity 
public class Department { 

    @Id 
    private Long id; 

    @OneToMany(fetch = FetchType.EAGER, mappedBy = "department", cascade = CascadeType.ALL) 
    List<Person> persons; 

    public void addToPersons(Person p) { 
    if (this.persons == null) { 
     this.persons = new ArrayList<>(); 
    } 
    this.persons.add(p); 
    p.setDepartment(this); 
    } 

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

}

と子クラス（人）完了するために

@Entity 
public class Person { 

    @Id 
    private String name; 

    @ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL) 
    private List<Person> followers; 

    @ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, mappedBy = "followers") 
    private List<Person> following; 

    @ManyToOne(fetch = FetchType.LAZY) 
    private Department department; 

    public void addToFollowers(Person p) { 
    if (this.followers == null) { 
     this.followers = new ArrayList<>(); 
    } 
    if (!this.followers.contains(p)) { 
     this.followers.add(p); 
    } 
    } 

    public void addToFollowing(Person p) { 
    if (this.following == null) { 
     this.following = new ArrayList<>(); 
    } 
    if (!this.following.contains(p)) { 
     this.following.add(p); 
    } 
    } 

    public void setDepartment(Department department) { 
    this.department = department; 
    } 

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

    @Override 
    public boolean equals(Object o) { 
    if (this == o) return true; 
    if (o == null || getClass() != o.getClass()) return false; 
    Person that = (Person) o; 
    return name != null ? name.equals(that.name) : that.name == null; 
    } 

}

、リポジトリクラスを持っ

public interface DepartmentRepository extends CrudRepository<Department, Long> {}

例外が発生し、コントローラ

@RestController 
public class MainController { 

    @Autowired 
    private DepartmentRepository departmentRepository; 

    @RequestMapping("/") 
    @ResponseBody 
    public String index() { 
    Department d1 = new Department(); 
    d1.setId(1L); 

    Department d2 = new Department(); 
    d2.setId(2L); 

    Person john = new Person(); 
    john.setName("John"); 

    Person alice = new Person(); 
    alice.setName("Alice"); 

    john.addToFollowers(alice); 
    alice.addToFollowing(john); 

    d1.addToPersons(john); 
    d2.addToPersons(alice); 

    departmentRepository.save(d1); // <-- throws violation exception 

    return "foo"; 
    } 

}

部門d2はまだ保存されていないので違反例外がスローされますが、前にすべてのエンティティのエンティティを明示的に保存しなくてもそれを実行できますか？

ありがとうございます！

UPDATE

は、コードを完了しました。例外要因：あなたのd.addToPersons(p1);実装で

2016-11-24 11:45:40.513 ERROR 19927 --- [nio-8080-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper : INSERT on table 'PERSON' caused a violation of foreign key constraint 'FK_R2AEQQXC7UWBN48SHRHMAI8CX' for key (2). The statement has been rolled back. 
2016-11-24 11:45:40.514 INFO 19927 --- [nio-8080-exec-1] o.h.e.j.b.internal.AbstractBatchImpl  : HHH000010: On release of batch it still contained JDBC statements 
2016-11-24 11:45:40.526 ERROR 19927 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement] with root cause 

org.apache.derby.iapi.error.StandardException: INSERT on table 'PERSON' caused a violation of foreign key constraint 'FK_R2AEQQXC7UWBN48SHRHMAI8CX' for key (2). The statement has been rolled back. 
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.execute.ForeignKeyRIChecker.doCheck(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.execute.RISetChecker.doFKCheck(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeLargeUpdate(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(Unknown Source) ~[derby-10.12.1.1.jar:na] 
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:62) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3124) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3581) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:104) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:465) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:351) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1258) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final] 
at org.hibernate.jpa.internal.TransactionImpl.commit(TransactionImpl.java:77) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final] 
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:517) ~[spring-orm-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:485) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:291) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:131) ~[spring-data-jpa-1.9.1.RELEASE.jar:na] 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208) ~[spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at com.sun.proxy.$Proxy69.save(Unknown Source) ~[na:na] 
at com.ottogroup.test.MainController.index(MainController.java:40) ~[classes/:na] 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_80] 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_80] 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_80] 
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_80] 
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217) ~[tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_80] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_80] 
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.28.jar:8.0.28] 
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80]

出典

2016-11-23 kaaas

+0

に適用されます

public void addToPersons(Person person){ person.setDepartment(this); this.persons.add(person); }

、あなたにも人に部署を設定してくださいここの「部署」。メソッドと完全なスタックトレースを追加できますか？ –

答えて

0 
@Entity(name = "department")  
class Department { 

    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private int idx 

    @OneToMany(mappedBy = "department", cascade = { CascadeType.ALL }) 
    List<Person> person; 

    // getter, setter... 
} 

@Entity(name = "Person") 
class Person { 

    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private int idx; 

    @ManyToOne 
    @JoinColumn(name = "department_id") 
    private Department department; 

    // getter, setter... 
} 


Department department = new Department(); 
Person p1 = new Person(); 
Person p2 = new Person(); 

p1.setDepartment(department); 
p2.setDepartment(department); 

personRepository.save(p1); 
personRepository.save(p2);

出典

2016-11-24 04:37:04 Byeon0gam

0

同じことはあなたがいずれかを持っていない他の関係

出典

2016-11-24 05:01:46 Sagar

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