인프런 커뮤니티 질문&답변
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기본키 매핑 강의
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Member.java
@Entity
public class Member {
//기본키 맵핑
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private String id;
@Column(name = "name", nullable = false)
private String username;
public Member() {}
public void setUsername(String username) {
this.username = username;
}
public String getUsername() {
return username;
}
public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
}
Main.java
public class Main {
public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("hello");
EntityManager em = emf.createEntityManager();
EntityTransaction tx = em.getTransaction();
tx.begin();
try {
Member member = new Member();
member.setId("ID_A");
member.setUsername("임연주");
em.persist(member);
tx.commit();
} catch (Exception ex) {
tx.rollback();
} finally {
em.close();
}
emf.close();
}
}persistent.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.2"
xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
<persistence-unit name="hello">
<properties>
<!-- 필수 속성 -->
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/>
<property name="javax.persistence.jdbc.user" value="sa"/>
<property name="javax.persistence.jdbc.password" value="1234"/>
<property name="javax.persistence.jdbc.url" value="jdbc:h2:tcp://localhost/~/test"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
<!-- 옵션 -->
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<property name="hibernate.use_sql_comments" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="create" />
</properties>
</persistence-unit>
</persistence>pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>jpast_01</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>19</source>
<target>19</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<!-- JPA 하이버네이트 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.3.10.Final</version>
</dependency>
<!-- H2 데이터베이스 -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>2.1.214</version>
</dependency>
</dependencies>
</project>코드는 위와 같습니다.
12월 08, 2022 2:27:42 오후 org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [name: hello]
12월 08, 2022 2:27:42 오후 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate ORM core version 5.6.5.Final
12월 08, 2022 2:27:43 오후 org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
12월 08, 2022 2:27:43 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
12월 08, 2022 2:27:43 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [org.h2.Driver] at URL [jdbc:h2:tcp://localhost/~/test]
12월 08, 2022 2:27:43 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=sa}
12월 08, 2022 2:27:43 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
12월 08, 2022 2:27:43 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
12월 08, 2022 2:27:43 오후 org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
Hibernate:
drop table if exists Member CASCADE
12월 08, 2022 2:27:45 오후 org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@f1a45f8] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
Hibernate:
create table Member (
id varchar(255) generated by default as identity,
name varchar(255) not null,
primary key (id)
)
12월 08, 2022 2:27:45 오후 org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@1431267b] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
12월 08, 2022 2:27:45 오후 org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Error executing DDL "
create table Member (
id varchar(255) generated by default as identity,
name varchar(255) not null,
primary key (id)
)" via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "
create table Member (
id varchar(255) generated by default as identity,
name varchar(255) not null,
primary key (id)
)" via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:458)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:442)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:325)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:169)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:138)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:124)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:164)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:81)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:335)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:471)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1498)
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at org.example.Main.main(Main.java:14)
Caused by: org.h2.jdbc.JdbcSQLFeatureNotSupportedException: Feature not supported: "CHARACTER VARYING(255)"; SQL statement:
create table Member (
id varchar(255) generated by default as identity,
name varchar(255) not null,
[50100-214]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:556)
at org.h2.message.DbException.getJdbcSQLException(DbException.java:477)
at org.h2.message.DbException.get(DbException.java:223)
at org.h2.message.DbException.get(DbException.java:199)
at org.h2.message.DbException.getUnsupportedException(DbException.java:287)
at org.h2.command.ddl.SequenceOptions.getBounds(SequenceOptions.java:316)
at org.h2.command.ddl.SequenceOptions.getBounds(SequenceOptions.java:244)
at org.h2.schema.Sequence.<init>(Sequence.java:100)
at org.h2.table.Column.initializeSequence(Column.java:459)
at org.h2.command.ddl.CommandWithColumns.generateSequences(CommandWithColumns.java:103)
at org.h2.command.ddl.CreateTable.update(CreateTable.java:113)
at org.h2.command.CommandContainer.update(CommandContainer.java:169)
at org.h2.command.Command.executeUpdate(Command.java:252)
at org.h2.server.TcpServerThread.process(TcpServerThread.java:408)
at org.h2.server.TcpServerThread.run(TcpServerThread.java:191)
at java.base/java.lang.Thread.run(Thread.java:1589)
at org.h2.message.DbException.getJdbcSQLException(DbException.java:556)
at org.h2.engine.SessionRemote.readException(SessionRemote.java:637)
at org.h2.engine.SessionRemote.done(SessionRemote.java:606)
at org.h2.command.CommandRemote.executeUpdate(CommandRemote.java:227)
at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:252)
at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:223)
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
... 15 more
12월 08, 2022 2:27:45 오후 org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
12월 08, 2022 2:27:45 오후 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PoolState stop
INFO: HHH10001008: Cleaning up connection pool [jdbc:h2:tcp://localhost/~/test]
Process finished with exit code 0
오류 내용은 위와 같습니다. 왜 이런 오류가 발생하는지 원인 파악이 잘 안됍니다..
답변 1
1
