解決方法 "原因：org.postgresql.util.PSQLException：ERROR：relation" employee "が存在しません。位置：13"エラー？

私はHibernate Demoアプリケーションを実行しようとしました。私は以下のエラーメッセージが表示されます。解決方法 "原因：org.postgresql.util.PSQLException：ERROR：relation" employee "が存在しません。位置：13"エラー？

データベース：PostgreSQLの休止バージョン：Beanクラスパッケージcom.javatpointのための5

ソースコード。

import javax.persistence.Entity; 
import javax.persistence.Id; 
import javax.persistence.Table; 


@Entity 
public class Employee { 
@Id 
private int id; 
private String firstName,lastName; 

public int getId() { 
return id; 
} 
public void setId(int id) { 
this.id = id; 
} 
public String getFirstName() { 
return firstName; 
} 
public void setFirstName(String firstName) { 
this.firstName = firstName; 
} 
public String getLastName() { 
return lastName; 
} 
public void setLastName(String lastName) { 
this.lastName = lastName; 
} 


}

テストクラスパッケージcom.javatpoint。 HibernateはCRしようとしている

import org.hibernate.*; 
import org.hibernate.cfg.*; 

public class Test { 
public static void main(String[] args) { 

Configuration cfg=new Configuration(); 
cfg.configure("/hibernate.cfg.xml"); 
SessionFactory sf=cfg.buildSessionFactory(); 
Session session=sf.openSession(); 
Transaction t=session.beginTransaction(); 

Employee e1=new Employee(); 
e1.setId(1001); 
e1.setFirstName("sonoo"); 
e1.setLastName("jaiswal"); 

Employee e2=new Employee(); 
e2.setId(1002); 
e2.setFirstName("vimal"); 
e2.setLastName("jaiswal"); 

session.persist(e1); 
session.persist(e2); 

t.commit(); 
session.close(); 
System.out.println("successfully saved"); 
} 
}

hibernate.cfg.xmlの

<?xml version='1.0' encoding='UTF-8'?> 
<!DOCTYPE hibernate-configuration PUBLIC 
     "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
     "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 

<!-- Generated by MyEclipse Hibernate Tools.     --> 
<hibernate-configuration> 

<session-factory> 
    <property name="hbm2ddl.auto">create</property> 
    <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property> 
    <property name="connection.url">jdbc:postgresql://localhost:5555/postgres</property> 
    <property name="connection.username">postgres</property> 
    <property name="connection.password">password</property> 
    <property name="connection.driver_class">org.postgresql.Driver</property> 

    <mapping class="com.javatpoint.Employee"/> 
</session-factory>

エラーメッセージ

Jun 18, 2016 12:06:34 AM org.hibernate.Version logVersion 
INFO: HHH000412: Hibernate Core {5.2.0.Final} 
Jun 18, 2016 12:06:34 AM org.hibernate.cfg.Environment <clinit> 
INFO: HHH000206: hibernate.properties not found 
Jun 18, 2016 12:06:34 AM org.hibernate.cfg.Environment buildBytecodeProvider 
INFO: HHH000021: Bytecode provider name : javassist 
Jun 18, 2016 12:06:34 AM org.hibernate.boot.jaxb.internal.stax.LocalXmlResourceResolver resolveEntity 
WARN: HHH90000012: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/hibernate-configuration. Use namespace http://www.hibernate.org/dtd/hibernate-configuration instead. Support for obsolete DTD/XSD namespaces may be removed at any time. 
Jun 18, 2016 12:06:35 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit> 
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final} 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure 
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!) 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001005: using driver [org.postgresql.Driver] at URL [jdbc:postgresql://localhost:5555/postgres] 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001001: Connection properties: {user=postgres, password=****} 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001003: Autocommit mode: false 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init> 
INFO: HHH000115: Hibernate connection pool size: 20 (min=1) 
Jun 18, 2016 12:06:35 AM org.hibernate.dialect.Dialect <init> 
INFO: HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect 
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation 
INFO: HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException 
Jun 18, 2016 12:06:35 AM org.hibernate.type.BasicTypeRegistry register 
INFO: HHH000270: Type registration [java.util.UUID] overrides previous : [email protected] 
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning 
WARN: SQL Warning Code: 0, SQLState: 00000 
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning 
WARN: schema "hibernatedemo" does not exist, skipping 
Jun 18, 2016 12:06:36 AM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException 
WARN: GenerationTarget encountered exception accepting command : Unable to execute command [create table HibernateDemo.Employee (id int4 not null, firstName varchar(255), lastName varchar(255), primary key (id))] 
org.hibernate.tool.schema.spi.CommandAcceptanceException: Unable to execute command [create table HibernateDemo.Employee (id int4 not null, firstName varchar(255), lastName varchar(255), primary key (id))] 
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:63) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:434) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:419) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:310) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:165) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:134) 
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:120) 
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:148) 
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:65) 
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:308) 
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:476) 
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:707) 
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:723) 
at com.javatpoint.Test.main(Test.java:11) 
Caused by: org.postgresql.util.PSQLException: ERROR: schema "hibernatedemo" does not exist 
Position: 14 
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2284) 
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2003) 
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:200) 
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:424) 
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:321) 
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:313) 
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:51) 
... 13 more 

Jun 18, 2016 12:06:36 AM org.hibernate.tool.schema.internal.SchemaCreatorImpl applyImportSources 
INFO: HHH000476: Executing import script 'org.hiber[email protected]13f17eb4' 
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions 
WARN: SQL Error: 0, SQLState: 42P01 
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions 
ERROR: ERROR: relation "hibernatedemo.employee" does not exist 
Position: 13 
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release 
INFO: HHH000010: On release of batch it still contained JDBC statements 
Jun 18, 2016 12:06:36 AM org.hibernate.internal.ExceptionMapperStandardImpl mapManagedFlushFailure 
ERROR: HHH000346: Error during managed flush [org.hibernate.exception.SQLGrammarException: could not execute statement] 
Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute statement 
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:147) 
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155) 
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:162) 
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1402) 
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:472) 
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3132) 
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2369) 
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:467) 
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147) 
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) 
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:221) 
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68) 
at com.javatpoint.Test.main(Test.java:28) 
Caused by: org.hibernate.exception.SQLGrammarException: could not execute statement 
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106) 
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) 
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111) 
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97) 
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207) 
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45) 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2934) 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3434) 
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89) 
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:560) 
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:434) 
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337) 
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39) 
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1396) 
... 9 more 
Caused by: org.postgresql.util.PSQLException: ERROR: relation "hibernatedemo.employee" does not exist 
Position: 13 
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2284) 
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2003) 
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:200) 
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:424) 
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:161) 
at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:133) 
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204) 
... 18 more

Eclipse Project

PostgreSQL Database

出典

2016-06-18 TechGuy

を開始するためにもう一度試してスキーマを作成した後のPostGreSQL Link

CREATE SCHEMA IF NOT EXISTS schema_name

でスキーマを作成する方法：org.postgresql.util.PSQLException：ERROR：スキーマ "hibernatedemo"が存在しないので、 'id、firstName、lastName'カラムを持つテーブルを作成し、その'ドメインクラス 'の次の行に' @ Entity'を書き込みます '@Table（name ="あなたのテーブル名前 "）' –

テーブルを作成するために休止状態にします。ですから、設定ファイルで "hbm2ddl.auto"プロパティを "作成"に設定しました。私が間違っているなら、私を修正してください。 – TechGuy

'create'の代わりに' update'を使ってみてください –

エイトエンティティhibernatedemoスキーマ。データベースにそのスキーマを作成する必要があります。 hibernatedemoスキーマを指している構成が表示されませんでした。 cfg.xmlは、MyEclipse Hibernateツールによって生成されます。設定を確認してください。

あなたがに起因するあなたの例外 `で観察する場合は、アプリケーション

出典

2016-06-18 06:35:10

私はすでにデータベースにスキーマを作成しています。私のデータベースのスクリーンショットについては、私の質問の最後にある "PostgreSQLデータベース"のハイパーリンクを参照してください。 – TechGuy

PostgreSQLで設定が大文字小文字を区別しないかどうか確認してください。あなたはHibernateDemoの代わりに "hibernatedemo"を使用する必要があります –

ありがとうございます。魅力のように働いた。 – TechGuy

解決方法 "原因：org.postgresql.util.PSQLException：ERROR：relation" employee "が存在しません。位置：13"エラー？

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