所以我有2个实体：开发人员和项目上下文
我之间有双向的OneToMany关系，但它似乎无法正常工作。
项目上下文有一个或多个开发人员
我认为我很好地使用了注释，但在过去的90分钟内我找不到问题。你能帮我解决一下吗？
以下是课程：
ProjectContext：
@Component
@Entity
public class ProjectContext {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE)
@Column(name = "PROJECT_CONTEXT_ID")
private int id;
@ElementCollection
private Map<String, Integer> productBacklog;
private int numberOfStoryPoints;
private int numberOfExpectedWeeks;
@ElementCollection
@MapKeyEnumerated(EnumType.STRING)
private Map<Skill, Integer> technologies;
@OneToMany(mappedBy = "projectContext", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
private List<Developer> developers = new ArrayList<Developer>();
public ProjectContext() {
}
*getters and setters*
}
开发
@Component
@Entity
public class Developer {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE)
@Column(name = "DEVELOPER_ID")
private int id;
private String nume;
private String prenume;
@Enumerated(EnumType.STRING)
private Skill primarySkill;
@Enumerated(EnumType.STRING)
private Skill secondarySkill;
private int motivationLevel;
@Enumerated(EnumType.STRING)
private Gender gender;
private int velocity;
@ManyToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
@JoinColumn(name = "PROJECT_CONTEXT_ID")
private ProjectContext projectContext;
public ProjectContext getProjectContext() {
return projectContext;
}
public void setProjectContext(ProjectContext projectContext) {
this.projectContext = projectContext;
}
public Developer(){}
*getters and setters*
}
我在哪里使用这些课程：
@Component
public class DatabaseSeeder implements CommandLineRunner {
@Autowired
private ProjectContextRepository projectContextRepository;
@Override
public void run(String... strings) throws Exception {
ProjectContext projectContext = new ProjectContext();
Map<Skill, Integer> technologies = new HashMap<>();
technologies.put(Skill.AI, 10);
technologies.put(Skill.BACKEND, 30);
technologies.put(Skill.INTEGRATIONS, 30);
technologies.put(Skill.FRONTEND, 30);
Map<String, Integer> productBacklog = new HashMap<>();
productBacklog.put("Filtrare", 30);
productBacklog.put("Design", 20);
projectContext.setNumberOfExpectedWeeks(11);
projectContext.setNumberOfStoryPoints(422);
projectContext.setProductBacklog(productBacklog);
projectContext.setTechnologies(technologies);
Developer developer = new Developer();
developer.setGender(Gender.F);
developer.setMotivationLevel(60);
developer.setNume("Popescu");
developer.setPrenume("Ana");
developer.setPrimarySkill(Skill.BACKEND);
developer.setSecondarySkill(Skill.AI);
developer.setVelocity(3);
developer.setProjectContext(projectContext);
projectContext.getDevelopers().add(developer);
projectContextRepository.save(projectContext);
}
}
这是我运行程序时收到的内容：
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:735) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:716) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:703) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:304) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at eif.devhacks.DevhacksApplication.main(DevhacksApplication.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.8.RELEASE.jar:1.5.8.RELEASE]
Caused by: org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [insert into project_context (number_of_expected_weeks, number_of_story_points, project_context_id) values (?, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:261) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:521) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:504) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:292) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133) ~[spring-data-jpa-1.11.8.RELEASE.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) ~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at com.sun.proxy.$Proxy88.save(Unknown Source) ~[na:na]
at eif.devhacks.beans.DatabaseSeeder.run(DatabaseSeeder.java:51) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:732) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
... 11 common frames omitted
Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:78) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.buildBatchStatement(AbstractBatchImpl.java:136) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.getBatchStatement(AbstractBatchImpl.java:125) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2930) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3449) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:582) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:456) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1282) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:465) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:2963) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2339) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:485) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.internal.TransactionImpl.commit(TransactionImpl.java:61) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:517) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
... 29 common frames omitted
Caused by: java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: PROJECT_CONTEXT_ID in statement [insert into project_context (number_of_expected_weeks, number_of_story_points, project_context_id) values (?, ?, ?)]
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126) ~[tomcat-jdbc-8.5.23.jar:na]
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108) ~[tomcat-jdbc-8.5.23.jar:na]
at org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke(AbstractCreateStatementInterceptor.java:75) ~[tomcat-jdbc-8.5.23.jar:na]
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108) ~[tomcat-jdbc-8.5.23.jar:na]
at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:81) ~[tomcat-jdbc-8.5.23.jar:na]
at com.sun.proxy.$Proxy70.prepareStatement(Unknown Source) ~[na:na]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:87) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
... 50 common frames omitted
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: PROJECT_CONTEXT_ID
at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.ParserDQL.readSimpleColumnName(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.ParserDQL.readSimpleColumnNames(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.ParserDML.compileInsertStatement(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.ParserCommand.compilePart(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.ParserCommand.compileStatement(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.Session.compileStatement(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.StatementManager.compile(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
at org.hsqldb.Session.execute(Unknown Source) ~[hsqldb-2.3.5.jar:2.3.5]
... 64 common frames omitted