SQL 语句中的 Spring Boot Hibernate 语法错误
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【中文标题】SQL 语句中的 Spring Boot Hibernate 语法错误【英文标题】：Spring Boot Hibernate Syntax Error in SQL Statement 【发布时间】：2015-03-15 05:47:35 【问题描述】：我已经修改了 Spring Boot JPA 数据示例 (https://github.com/spring-guides/gs-accessing-data-jpa.git)，稍微添加了一个 Order 实体和一个对应的一对多客户的映射。当我运行该示例时，Hibernate 记录的 SQL 语句行中有几个语法错误。我试图弄清楚为什么？我已经粘贴了实体的代码和下面应用程序的控制台输出。
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);
还有一个对应的Order实体：
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;
还有控制台输出：
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: 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.springframework.context.annotation.AnnotationConfigApplicationContext@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.springframework.context.annotation.AnnotationConfigApplicationContext@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
想法？
TIA, - 奥莱
【问题讨论】：
order 无疑是一个保留字。如果您将表格重命名为其他名称，我会向您打赌一分钱，例如xorder，它将开始工作。
看起来我们今天遇到了同样的问题，命名一个字段“组”哎呀，谢谢@MarcB
【参考方案1】：
请尝试更改您的Order 实体：
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;
解释：
注意@Table注解。使用此注释，我将表名指定为order_table。在您的情况下，默认情况下休眠尝试生成表order。 ORDER 是任何 sql 中的服务字。出现异常是因为 hibernate 正在为 order 表生成 *** 语句，但 db 预期的表名不是服务字 order。
【讨论】：
我在添加新字段“订单”时得到了这个。将其更改为“executionOrder”，一切都很好。谢谢。【参考方案2】：我在使用 Order 实体时遇到了完全相同的问题，解决了明确定义表名的问题。
@Entity
@Table(name = "order_table")
class Order(
@Id
@GeneratedValue(generator = "system-uuid")
@GenericGenerator(name = "system-uuid", strategy = "uuid2")
val orderId: String,
val customerId: String,
...
)
【讨论】：
【参考方案3】：我在名为 order 的列中遇到了同样的问题，但我无法更改它。在列注释中添加反引号解决了它。
@Column(name = "`ORDER`")
val order: String
【讨论】：
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