We Keep Coding

How to insert values in H2-Database in Spring Boot

I am inserting the data in inMemory database H2 ,while inserting the data i am getting an issue,
Sample program to insert data in inMemory using boot,JPA,H2db
Created Pojo and annotated with JPA annotation
Created data.sql file for queries.
I tried with a number of ways, but still the same exception
POJO
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue(generator = "UUID")
#GenericGenerator(
name = "UUID",
strategy = "org.hibernate.id.UUIDGenerator"
)
#Column(name = "user_id", updatable = false)
private UUID uuid;
#Column(name = "fullname" , nullable = false)
private String fullName;
#Column(nullable = false)
private String username;
#Column(nullable = false)
private String password;
private boolean enabled;
#ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
#JoinTable(
name = "users_roles",
joinColumns = #JoinColumn(name = "user_id"),
inverseJoinColumns = #JoinColumn(name = "role_id")
)
private Set<Role> roles = new HashSet<>();
// NoArgsConstructor , AllArgsConstructor , getter and setter for brevity
}
#Entity
#Table(name = "roles")
public class Role {
#Id
#GeneratedValue(generator = "UUID")
#GenericGenerator(
name = "UUID",
strategy = "org.hibernate.id.UUIDGenerator"
)
#Column(name = "role_id", updatable = false)
private UUID uuid;
private String name;
// NoArgsConstructor , AllArgsConstructor , getter and setter for brevity
}
application.properties
spring.h2.console.enabled=true
spring.jpa.show-sql=true
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.datasource.driverClassName=org.h2.Driver
data.sql
insert into roles(name) values('ROLE_ADMIN')
Exception:
Rest of exception Stack
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-05-09 20:28:08.765 ERROR 4916 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of URL [file:/C:/Users/Parth/Downloads/parth/target/classes/data.sql]: insert into roles(name) values('ROLE_ADMIN'); nested exception is org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException: NULL not allowed for column "ROLE_ID"; SQL statement:
insert into roles(name) values('ROLE_ADMIN') [23502-200]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:610) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:782) [spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:774) [spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) [spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) [spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1340) [spring-boot-2.4.5.jar:2.4.5]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1329) [spring-boot-2.4.5.jar:2.4.5]
at com.example.parth.ParthApplication.main(ParthApplication.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_261]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_261]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_261]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_261]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.4.5.jar:2.4.5]
Caused by: org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of URL [file:/C:/Users/Parth/Downloads/parth/target/classes/data.sql]: insert into roles(name) values('ROLE_ADMIN'); nested exception is org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException: NULL not allowed for column "ROLE_ID"; SQL statement:
insert into roles(name) values('ROLE_ADMIN') [23502-200]
at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:622) ~[spring-jdbc-5.3.6.jar:5.3.6]
at org.springframework.jdbc.datasource.init.ResourceDatabasePopulator.populate(ResourceDatabasePopulator.java:254) ~[spring-jdbc-5.3.6.jar:5.3.6]
at org.springframework.jdbc.datasource.init.DatabasePopulatorUtils.execute(DatabasePopulatorUtils.java:49) ~[spring-jdbc-5.3.6.jar:5.3.6]
at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.runScripts(DataSourceInitializer.java:202) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.initSchema(DataSourceInitializer.java:119) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker.onApplicationEvent(DataSourceInitializerInvoker.java:91) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker.onApplicationEvent(DataSourceInitializerInvoker.java:38) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.6.jar:5.3.6]
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.publishEventIfRequired(DataSourceInitializedPublisher.java:111) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.postProcessAfterInitialization(DataSourceInitializedPublisher.java:102) ~[spring-boot-autoconfigure-2.4.5.jar:2.4.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790) ~[spring-beans-5.3.6.jar:5.3.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) ~[spring-beans-5.3.6.jar:5.3.6]
... 21 common frames omitted
Caused by: org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException: NULL not allowed for column "ROLE_ID"; SQL statement:
insert into roles(name) values('ROLE_ADMIN') [23502-200]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:459) ~[h2-1.4.200.jar:1.4.200]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) ~[h2-1.4.200.jar:1.4.200]
at org.h2.message.DbException.get(DbException.java:205) ~[h2-1.4.200.jar:1.4.200]
at org.h2.message.DbException.get(DbException.java:181) ~[h2-1.4.200.jar:1.4.200]
at org.h2.table.Column.validateConvertUpdateSequence(Column.java:374) ~[h2-1.4.200.jar:1.4.200]
at org.h2.table.Table.validateConvertUpdateSequence(Table.java:845) ~[h2-1.4.200.jar:1.4.200]
at org.h2.command.dml.Insert.insertRows(Insert.java:187) ~[h2-1.4.200.jar:1.4.200]
at org.h2.command.dml.Insert.update(Insert.java:151) ~[h2-1.4.200.jar:1.4.200]
at org.h2.command.CommandContainer.update(CommandContainer.java:198) ~[h2-1.4.200.jar:1.4.200]
at org.h2.command.Command.executeUpdate(Command.java:251) ~[h2-1.4.200.jar:1.4.200]
at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:228) ~[h2-1.4.200.jar:1.4.200]
at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:201) ~[h2-1.4.200.jar:1.4.200]
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-3.4.5.jar:na]
at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:601) ~[spring-jdbc-5.3.6.jar:5.3.6]
... 37 common frames omitted
Process finished with exit code 0

You can manually add UUID by using java.util.UUID.randomUUID()
OR
if you are using hibernate 5, below code should work
#Id
#GeneratedValue
private java.util.UUID id;
id column should have type BINARY(16) in MySQL or it's equivalent in other SQL implementations.

You get the exception because you do not provide an ID value in your insert statement. And ID can not be null. You annotated your id field in your entity with generator annotations, but they only work, if you save an entity through JPA. JPA is not involved when you execute a native sql in your script. So, you have to provide an ID in your insert statement in data.sql.
This is the important part of your stacktrace, and the cause of the startup failure:
Caused by: org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException: NULL not allowed for column "ROLE_ID"; SQL statement:
insert into roles(name) values('ROLE_ADMIN')

JPA weak entity representation

I'm trying to have a weak entity of a weak entity in JPA, but something is obviously not working properly.
I have Cinema entity which has weak entity called screeningRoom. ScreeningRoom entity has weak entity seats. I've tried to do JoinColumn with Id but unfortunately it doesn't work.
#Entity
public class Cinema implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "cinema_id")
private Integer cinemaId;
#Column(name = "address")
private String address;
#Column(name = "city")
private String city;
#OneToMany(mappedBy = "cinema")
private List<ScreeningRoom> screeningRoomList = new ArrayList<>();
#Entity
public class ScreeningRoom implements Serializable {
#Id
#Column(name = "screening_room_number")
private Integer screeningRoomNumber;
#ManyToOne
#Id
#JoinColumn(name = "cinema_id", referencedColumnName = "cinema_id")
private Cinema cinema;
#OneToMany(mappedBy = "screeningRoom")
private List<Seat> seatList = new ArrayList<>();
#Entity
public class Seat implements Serializable {
#Id
#Column(name = "seat_number")
private Integer seatNumber;
#Column(name = "row")
private Integer row;
#Column(name = "column")
private Integer column;
#ManyToOne
#Id
#JoinColumn(name = "screening_room", referencedColumnName = "screening_room_number")
private ScreeningRoom screeningRoom;
Im getting an error which is obviously not an issue in this case.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: referencedColumnNames(screening_room_number) of com.cinema.cinemaproject.entities.Seat.screeningRoom referencing com.cinema.cinemaproject.entities.ScreeningRoom not mapped to a single property
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1153) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:907) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.3.jar:2.4.3]
at com.cinema.cinemaproject.CinemaProjectApplication.main(CinemaProjectApplication.java:10) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.3.jar:2.4.3]
Caused by: org.hibernate.AnnotationException: referencedColumnNames(screening_room_number) of com.cinema.cinemaproject.entities.Seat.screeningRoom referencing com.cinema.cinemaproject.entities.ScreeningRoom not mapped to a single property
at org.hibernate.cfg.BinderHelper.createSyntheticPropertyReference(BinderHelper.java:332) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:101) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processEndOfQueue(InFlightMetadataCollectorImpl.java:1823) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1767) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1655) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:295) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.4.jar:5.3.4]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.4.jar:5.3.4]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.4.jar:5.3.4]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.4.jar:5.3.4]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1845) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782) ~[spring-beans-5.3.4.jar:5.3.4]
... 21 common frames omitted
Graphical representation of the problem

Jpa repository special words like "and' , "or" not working

I have a simple UserRepository which extends JpaRepository.
I am trying to find a user for a given username and password.
Here is my repository class
public interface UserRepository extends JpaRepository<User, Integer> {
public Optional<User> findByusUnameAndusPassword(String username, String password);
}
Here is my entity class
public class User implements java.io.Serializable {
#Id
#Column(name = "us_id", unique = true, nullable = false)
private int usId;
#Column(name = "us_uname", unique = true, nullable = false)
private String usUname;
#Column(name = "us_password", nullable = false, length = 100)
private String usPassword;
}
This is the error that I am getting
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.Optional com.example.repository.UserRepository.findByusUnameAndusPaasword(java.lang.String,boolean)! No property andusPassword found for type String! Traversed path: User.usUname.
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:178) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1821) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1266) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:260) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:623) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:611) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:51) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:36) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:403) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:360) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:897) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120) [spring-boot-test-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:123) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:244) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:98) [spring-test-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$5(ClassBasedTestDescriptor.java:341) [junit-jupiter-engine-5.6.2.jar:5.6.2]
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:346) [junit-jupiter-engine-5.6.2.jar:5.6.2]
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$6(ClassBasedTestDescriptor.java:341) [junit-jupiter-engine-5.6.2.jar:5.6.2]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_251]
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[na:1.8.0_251]

Use findByUsUnameAndUsPassword instead of findByusUnameAndusPassword.
Optional<User> findByUsUnameAndUsPassword(String username, String password);

Error starting ApplicationContext in Spring when add #OneToOne Annotation

:
I am a beginner in Java Spring MVC and I want to create a simple program using spring boots.
But I have a problem:
When I add #OneToOne and #JoinColumn to my model class, the project doesn't start!
Error:
Error starting ApplicationContext. To display the conditions report
re-run your application with 'debug' enabled. 2020-05-24 15:24:45.140
ERROR 5368 --- [ main] o.s.boot.SpringApplication
: Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'homeController' defined in file
[C:\Users\HamidS\Desktop\application\target\classes\crud\example\application\Controller\HomeController.class]:
Unsatisfied dependency expressed through constructor parameter 0;
nested exception is
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'bookServices' defined in file
[C:\Users\HamidS\Desktop\application\target\classes\crud\example\application\Services\Service\BookServices.class]:
Unsatisfied dependency expressed through constructor parameter 0;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'sessionFactory' defined in class path
resource [crud/example/application/config.class]: Bean instantiation
via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.hibernate.SessionFactory]: Factory method
'sessionFactory' threw exception; nested exception is
org.hibernate.AnnotationException: #OneToOne or #ManyToOne on
crud.example.application.Models.Book.lessons references an unknown
entity: crud.example.application.Models.lesson at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:228)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1358)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:895)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
crud.example.application.Application.main(Application.java:10)
~[classes/:na] Caused by:
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'bookServices' defined in file
[C:\Users\HamidS\Desktop\application\target\classes\crud\example\application\Services\Service\BookServices.class]:
Unsatisfied dependency expressed through constructor parameter 0;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'sessionFactory' defined in class path
resource [crud/example/application/config.class]: Bean instantiation
via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.hibernate.SessionFactory]: Factory method
'sessionFactory' threw exception; nested exception is
org.hibernate.AnnotationException: #OneToOne or #ManyToOne on
crud.example.application.Models.Book.lessons references an unknown
entity: crud.example.application.Models.lesson at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:228)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1358)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1306)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] ... 20 common frames
omitted Caused by:
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'sessionFactory' defined in class path
resource [crud/example/application/config.class]: Bean instantiation
via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.hibernate.SessionFactory]: Factory method
'sessionFactory' threw exception; nested exception is
org.hibernate.AnnotationException: #OneToOne or #ManyToOne on
crud.example.application.Models.Book.lessons references an unknown
entity: crud.example.application.Models.lesson at
org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1306)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] ... 34 common frames
omitted Caused by:
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.hibernate.SessionFactory]: Factory method
'sessionFactory' threw exception; nested exception is
org.hibernate.AnnotationException: #OneToOne or #ManyToOne on
crud.example.application.Models.Book.lessons references an unknown
entity: crud.example.application.Models.lesson at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] ... 48 common frames
omitted Caused by: org.hibernate.AnnotationException: #OneToOne or
#ManyToOne on crud.example.application.Models.Book.lessons references
an unknown entity: crud.example.application.Models.lesson at
org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:97)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processEndOfQueue(InFlightMetadataCollectorImpl.java:1786)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1730)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1617)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:692)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:727)
~[hibernate-core-5.0.11.Final.jar:5.0.11.Final] at
crud.example.application.config.sessionFactory(config.java:18)
~[classes/:na] at
crud.example.application.config$$EnhancerBySpringCGLIB$$2bb57076.CGLIB$sessionFactory$0()
~[classes/:na] at
crud.example.application.config$$EnhancerBySpringCGLIB$$2bb57076$$FastClassBySpringCGLIB$$ce3a25e0.invoke()
~[classes/:na] at
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
~[spring-core-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
crud.example.application.config$$EnhancerBySpringCGLIB$$2bb57076.sessionFactory()
~[classes/:na] at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[na:na] at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[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:566) ~[na:na]
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] ... 49 common frames
omitted
2020-05-24 15:24:45.140 WARN 5368 --- [ main]
o.s.boot.SpringApplication : Unable to close
ApplicationContext
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'springApplicationAdminRegistrar'
defined in class path resource
[org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration.class]:
Unsatisfied dependency expressed through method
'springApplicationAdminRegistrar' parameter 1; nested exception is
org.springframework.beans.factory.NoSuchBeanDefinitionException: No
qualifying bean of type 'org.springframework.core.env.Environment'
available: expected at least 1 bean which qualifies as autowire
candidate. Dependency annotations: {} at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:539)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.event.AbstractApplicationEventMulticaster.retrieveApplicationListeners(AbstractApplicationEventMulticaster.java:245)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.event.AbstractApplicationEventMulticaster.getApplicationListeners(AbstractApplicationEventMulticaster.java:197)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:134)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:403)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:360)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.boot.availability.AvailabilityChangeEvent.publish(AvailabilityChangeEvent.java:81)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.availability.AvailabilityChangeEvent.publish(AvailabilityChangeEvent.java:67)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:167)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:978)
~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:814)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:325)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE] at
crud.example.application.Application.main(Application.java:10)
~[classes/:na] Caused by:
org.springframework.beans.factory.NoSuchBeanDefinitionException: No
qualifying bean of type 'org.springframework.core.env.Environment'
available: expected at least 1 bean which qualifies as autowire
candidate. Dependency annotations: {} at
org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1716)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1272)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE] ... 23 common frames
omitted
Notice : My project worked well with a single model and CRUD operations for The model(Book), But now I want to add a new column (#OneToOne) to the model that the project can't start
My Book Model :
package crud.example.application.Models;
import javax.persistence.*;
#Entity
#Table(name = "Book")
public class Book
{
public Book(){}
public Book(String bookName, String authorName, String count, String writeDate) {
this.bookName = bookName;
this.authorName = authorName;
this.count = count;
this.writeDate = writeDate;
}
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column
private int id;
#Column
private String bookName;
#Column
private String authorName;
#Column
private String count;
#Column
private String writeDate;
#OneToOne(cascade = CascadeType.ALL)
#JoinColumn(name = "lessonID")
private lesson lessons;
public lesson getLessons() {
return lessons;
}
public void setLessons(lesson lessons) {
this.lessons = lessons;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getBookName() {
return bookName;
}
public void setBookName(String bookName) {
this.bookName = bookName;
}
public String getAuthorName() {
return authorName;
}
public void setAuthorName(String authorName) {
this.authorName = authorName;
}
public String getCount() {
return count;
}
public void setCount(String count) {
this.count = count;
}
public String getWriteDate() {
return writeDate;
}
public void setWriteDate(String writeDate) {
this.writeDate = writeDate;
}
}
My Lesson Model :
#Entity
#Table(name = "lesson")
public class lesson {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column
private int id;
#Column(name = "name")
private String name;
public lesson(){}
public lesson (String name){
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
My Hibernate.cfg.xml:
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- JDBC Database connection settings -->
<property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:8080/test?useSSL=false&serverTimezone=UTC</property>
<property name="connection.username">root</property>
<property name="connection.password">123321</property>
<!-- JDBC connection pool settings ... using built-in test pool -->
<property name="connection.pool_size">20</property>
<!-- Select our SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Echo the SQL to stdout -->
<property name="show_sql">true</property>
<!-- Set the current session context -->
<property name="current_session_context_class">thread</property>
</session-factory>
</hibernate-configuration>
My Configuration Class:
#Configuration
public class config {
#Bean
public SessionFactory sessionFactory(){
SessionFactory sf = new org.hibernate.cfg.Configuration().configure("hibernate.cfg.xml").addAnnotatedClass(Book.class).
buildSessionFactory();
return sf;
}
}
i am using IntelliJ IDE.
please help me.
thanks..:D

Please change the name of Lesson class to uppercase and try changing your SessionFactory bean to
#Bean
public SessionFactory sessionFactory(){
SessionFactory sf = new org.hibernate.cfg.Configuration()
.configure("hibernate.cfg.xml")
.addAnnotatedClass(Book.class)
.addAnnotatedClass(Lesson.class)
.buildSessionFactory();
return sf;
}

How to perform a JOIN query with spring jpa?

I'm trying to setup a join query between these two tables using Spring jpa :
https://image.noelshack.com/fichiers/2019/06/5/1549636975-relation.png
I've tried doing this in my student repository :
#Query("SELECT id FROM Student JOIN Offer ON Offer.id=Student.school.id")
but it keeps giving me an error when i try to execute my code
Here is my Student Entity :
package EIC.com.example.Backend.Entity;
import org.hibernate.annotations.Cascade;
import javax.persistence.*;
#Entity
#Table(name = "etudiant")
public class Student {
#Id
#Column(name="Apogee")
private int id;
#Column(name="Prenom")
private String first_name;
#Column(name="Nom")
private String last_name;
#Column(name="Classement")
private int rank;
#Column(name="Filiere")
private String speciality;
#ManyToOne
#JoinColumn(name = "Offre")
private Offer school;
/* Getters Setters Constructors */
}
And my Offer Entity :
package EIC.com.example.Backend.Entity;
import javax.persistence.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
#Entity
#Table(name = "offre")
public class Offer {
#Id
#Column(name = "ID_OFFRE")
private int id;
#Column(name = "Type")
private int type; // 0 for DD 1 for MOBILITY
#Column(name = "Etablissement")
private String school;
#Column(name = "Filiere_Concerne")
private String target;
#Column(name = "Nb_place")
private int seats;
#Column(name = "Delai")
private Date limit;
#OneToMany
#JoinColumn(name = "Offre")
private List<Student> students=new ArrayList<>();
/* GETTERS SETTERS CONSTRUCTORS */
}
Stacktrace :
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentController': Unsatisfied dependency expressed through field 'studentRep'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRep': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List EIC.com.example.Backend.Repository.StudentRep.test()!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1378) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863) ~[spring-context-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.2.RELEASE.jar:2.1.2.RELEASE]
at EIC.com.example.Backend.BackendApplication.main(BackendApplication.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.2.RELEASE.jar:2.1.2.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRep': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List EIC.com.example.Backend.Repository.StudentRep.test()!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1745) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1244) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1164) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
... 24 common frames omitted
Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List EIC.com.example.Backend.Repository.StudentRep.test()!
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:93) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:63) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:76) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:56) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:139) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:206) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:566) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_191]
at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_191]
at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1049) ~[na:1.8.0_191]
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_191]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_191]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_191]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_191]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_191]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_191]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:561) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:551) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_191]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:551) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:324) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.util.Lazy.getNullable(Lazy.java:211) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:119) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1741) ~[spring-beans-5.1.4.RELEASE.jar:5.1.4.RELEASE]
... 34 common frames omitted
Caused by: java.lang.IllegalArgumentException: org.hibernate.QueryException: No data type for node: org.hibernate.hql.internal.ast.tree.IdentNode
\-[IDENT] IdentNode: 'id' {originalText=id}
[SELECT id From EIC.com.example.Backend.Entity.Student JOIN EIC.com.example.Backend.Entity.Offer ON Student.school.id=Offer.id]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:713) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:350) ~[spring-orm-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at com.sun.proxy.$Proxy97.createQuery(Unknown Source) ~[na:na]
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:87) ~[spring-data-jpa-2.1.4.RELEASE.jar:2.1.4.RELEASE]
... 63 common frames omitted
Caused by: org.hibernate.QueryException: No data type for node: org.hibernate.hql.internal.ast.tree.IdentNode
\-[IDENT] IdentNode: 'id' {originalText=id}
[SELECT id From EIC.com.example.Backend.Entity.Student JOIN EIC.com.example.Backend.Entity.Offer ON Student.school.id=Offer.id]
at org.hibernate.QueryException.generateQueryException(QueryException.java:120) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:219) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:143) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:119) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:595) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:704) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
... 71 common frames omitted
Caused by: org.hibernate.QueryException: No data type for node: org.hibernate.hql.internal.ast.tree.IdentNode
\-[IDENT] IdentNode: 'id' {originalText=id}
at org.hibernate.hql.internal.ast.tree.SelectClause.initializeExplicitSelectClause(SelectClause.java:161) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.HqlSqlWalker.useSelectClause(HqlSqlWalker.java:1018) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.HqlSqlWalker.processQuery(HqlSqlWalker.java:786) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:677) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:313) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:271) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:191) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final]
... 77 common frames omitted
Process finished with exit code 0

Try it with the following. This way the university gets loaded eagerly. This is only good in situations that you only load 1 university. If you do it for example with the university you will load a list of all the students and their attributes. Now when you load a student by id it will also fetch the university
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name = "Offre")
private Offer school;

Add field offerId in your Student entity
#Column(name = "OfferId")
private int offerId;
And change to
#ManyToOne
#JoinColumn(name = "OfferId")
private Offer school;
In your Offer entity, change to
#OneToMany(fetch = FetchType.LAZY, mappedBy = "school")
private List<Student> students = new ArrayList<>();
Then try this #Query
#Query("SELECT id FROM Student std JOIN Offer off ON off.id = std.offerId")