Spring Ошибка синтаксиса загрузки Hibernate в SQL-заявлении

Я изменил пример Spring Boot JPA Data (https://github.com/spring-guides/gs-accessing-data-jpa.git), слегка добавив объект Order и соответствующий ему для сопоставления с ним клиент. Когда я запускаю пример, в SQL-строках, записанных в Hibernate, имеется несколько ошибок синтаксиса. Я пытаюсь понять, почему? Я вставил код для сущностей и консольный вывод из приложения ниже.

package hello;

import java.util.List;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;

@Entity
public class Customer {

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private long id;
private String firstName;
private String lastName;
@OneToMany(mappedBy="customer")
private List<Order> orders;


protected Customer() {}

public Customer(String firstName, String lastName) {
    this.firstName = firstName;
    this.lastName = lastName;
}

@Override
public String toString() {
    return String.format(
            "Customer[id=%d, firstName='%s', lastName='%s']",
            id, firstName, lastName);
}

}

И соответствующий объект Order:

package hello;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;

@Entity
public class Order {

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private long id;

protected Order() {}

double amount;

@ManyToOne
Customer customer;
}

И вывод консоли:

    .   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::       (v1.1.10.RELEASE)

    2015-01-16 08:56:53.116  INFO 27810 --- [           main] hello.Application                        : Starting Application on MKI with PID 27810 (/home/ole/Documents/workspace-sts-3.6.3.RELEASE/gs-accessing-data-jpa-complete/target/classes started by ole in /home/ole/Documents/workspace-sts-3.6.3.RELEASE/gs-accessing-data-jpa-complete)
    2015-01-16 08:56:53.149  INFO 27810 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.spring[email protected]5d59e6f1: startup date [Fri Jan 16 08:56:53 CST 2015]; root of context hierarchy
    2015-01-16 08:56:54.253  INFO 27810 --- [           main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
    2015-01-16 08:56:54.269  INFO 27810 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
      name: default
      ...]
    2015-01-16 08:56:54.320  INFO 27810 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {4.3.7.Final}
    2015-01-16 08:56:54.322  INFO 27810 --- [           main] org.hibernate.cfg.Environment            : HHH000205: Loaded properties from resource hibernate.properties: {hibernate.connection.charSet=UTF-8, hibernate.dialect=org.hibernate.dialect.H2Dialect, hibernate.show_sql=true, hibernate.export.schema.delimiter=;, hibernate.bytecode.use_reflection_optimizer=false, hibernate.ejb.naming_strategy=org.hibernate.cfg.ImprovedNamingStrategy}
    2015-01-16 08:56:54.322  INFO 27810 --- [           main] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
    2015-01-16 08:56:54.462  INFO 27810 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
    2015-01-16 08:56:54.499  INFO 27810 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
    2015-01-16 08:56:54.591  INFO 27810 --- [           main] o.h.h.i.ast.ASTQueryTranslatorFactory    : HHH000397: Using ASTQueryTranslatorFactory
    2015-01-16 08:56:54.751  INFO 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000227: Running hbm2ddl schema export
    Hibernate: alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists
    2015-01-16 08:56:54.752 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists
    2015-01-16 08:56:54.753 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "ALTER TABLE ORDER[*] DROP CONSTRAINT FK_M6Q2OFKJ1G5AOBTB2P00AJPQG IF EXISTS "; expected "identifier"; SQL statement:
    alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists [42001-176]
    Hibernate: drop table customer if exists
    Hibernate: drop table order if exists
    2015-01-16 08:56:54.753 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: drop table order if exists
    2015-01-16 08:56:54.753 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "DROP TABLE ORDER[*] IF EXISTS "; expected "identifier"; SQL statement:
    drop table order if exists [42001-176]
    Hibernate: create table customer (id bigint generated by default as identity, first_name varchar(255), last_name varchar(255), primary key (id))
    Hibernate: create table order (id bigint generated by default as identity, amount double not null, customer_id bigint, primary key (id))
    2015-01-16 08:56:54.756 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: create table order (id bigint generated by default as identity, amount double not null, customer_id bigint, primary key (id))
    2015-01-16 08:56:54.756 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "CREATE TABLE ORDER[*] (ID BIGINT GENERATED BY DEFAULT AS IDENTITY, AMOUNT DOUBLE NOT NULL, CUSTOMER_ID BIGINT, PRIMARY KEY (ID)) "; expected "identifier"; SQL statement:
    create table order (id bigint generated by default as identity, amount double not null, customer_id bigint, primary key (id)) [42001-176]
    Hibernate: alter table order add constraint FK_m6q2ofkj1g5aobtb2p00ajpqg foreign key (customer_id) references customer
    2015-01-16 08:56:54.757 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: alter table order add constraint FK_m6q2ofkj1g5aobtb2p00ajpqg foreign key (customer_id) references customer
    2015-01-16 08:56:54.757 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "ALTER TABLE ORDER[*] ADD CONSTRAINT FK_M6Q2OFKJ1G5AOBTB2P00AJPQG FOREIGN KEY (CUSTOMER_ID) REFERENCES CUSTOMER "; expected "identifier"; SQL statement:
    alter table order add constraint FK_m6q2ofkj1g5aobtb2p00ajpqg foreign key (customer_id) references customer [42001-176]
    2015-01-16 08:56:54.757  INFO 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000230: Schema export complete
    2015-01-16 08:56:55.085  INFO 27810 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
    2015-01-16 08:56:55.102  INFO 27810 --- [           main] hello.Application                        : Started Application in 2.286 seconds (JVM running for 2.604)
    Hibernate: insert into customer (id, first_name, last_name) values (null, ?, ?)
    Hibernate: insert into customer (id, first_name, last_name) values (null, ?, ?)
    Hibernate: insert into customer (id, first_name, last_name) values (null, ?, ?)
    Hibernate: insert into customer (id, first_name, last_name) values (null, ?, ?)
    Hibernate: insert into customer (id, first_name, last_name) values (null, ?, ?)
    Hibernate: select customer0_.id as id1_0_, customer0_.first_name as first_na2_0_, customer0_.last_name as last_nam3_0_ from customer customer0_
    Customers found with findAll():
    -------------------------------
    Customer[id=1, firstName='Jack', lastName='Bauer']
    Customer[id=2, firstName='Chloe', lastName='O'Brian']
    Customer[id=3, firstName='Kim', lastName='Bauer']
    Customer[id=4, firstName='David', lastName='Palmer']
    Customer[id=5, firstName='Michelle', lastName='Dessler']

    Hibernate: select customer0_.id as id1_0_0_, customer0_.first_name as first_na2_0_0_, customer0_.last_name as last_nam3_0_0_ from customer customer0_ where customer0_.id=?
    Customer found with findOne(1L):
    --------------------------------
    Customer[id=1, firstName='Jack', lastName='Bauer']

    Hibernate: select customer0_.id as id1_0_, customer0_.first_name as first_na2_0_, customer0_.last_name as last_nam3_0_ from customer customer0_ where customer0_.last_name=?
    Customer found with findByLastName('Bauer'):
    --------------------------------------------
    Customer[id=1, firstName='Jack', lastName='Bauer']
    Customer[id=3, firstName='Kim', lastName='Bauer']
    Hibernate: select customer0_.id as id1_0_, customer0_.first_name as first_na2_0_, customer0_.last_name as last_nam3_0_ from customer customer0_
    Hibernate: delete from customer where id=?
    Hibernate: delete from customer where id=?
    Hibernate: delete from customer where id=?
    Hibernate: delete from customer where id=?
    Hibernate: delete from customer where id=?
    2015-01-16 08:56:55.258  INFO 27810 --- [           main] s.c.a.AnnotationConfigApplicationContext : Closing org.spring[email protected]5d59e6f1: startup date [Fri Jan 16 08:56:53 CST 2015]; root of context hierarchy
    2015-01-16 08:56:55.259  INFO 27810 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans on shutdown
    2015-01-16 08:56:55.260  INFO 27810 --- [           main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
    2015-01-16 08:56:55.261  INFO 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000227: Running hbm2ddl schema export
    Hibernate: alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists
    2015-01-16 08:56:55.261 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists
    2015-01-16 08:56:55.261 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "ALTER TABLE ORDER[*] DROP CONSTRAINT FK_M6Q2OFKJ1G5AOBTB2P00AJPQG IF EXISTS "; expected "identifier"; SQL statement:
    alter table order drop constraint FK_m6q2ofkj1g5aobtb2p00ajpqg if exists [42001-176]
    Hibernate: drop table customer if exists
    Hibernate: drop table order if exists
    2015-01-16 08:56:55.263 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000389: Unsuccessful: drop table order if exists
    2015-01-16 08:56:55.263 ERROR 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : Syntax error in SQL statement "DROP TABLE ORDER[*] IF EXISTS "; expected "identifier"; SQL statement:
    drop table order if exists [42001-176]
    2015-01-16 08:56:55.263  INFO 27810 --- [           main] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000230: Schema export complete

Мысли?

ТИА, - Оле

ОТВЕТЫ

Ответ 1

Попробуйте изменить свой Order объект:

package hello;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Entity
@Table(name = "order_table")
public class Order {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private long id;

    protected Order() {}

    double amount;

    @ManyToOne
    Customer customer;
}

Объяснение:

Обратите внимание на аннотацию @Table. Используя эту аннотацию, я указал имя таблицы как order_table. В вашем случае по умолчанию hibernate попытался создать таблицу Order. Order - служебное слово в любом sql. Исключение возникло из-за того, что hibernate генерировал инструкцию *** для таблицы Order, но db ожидаемое имя таблицы не слово обслуживания Order.