我有兩個物體類，Order 類和 OrderLineItems 類。我正在嘗試在 Order 和 OrderLineItems 之間創建一對多的關系，即一個訂單可以有多個 OrderLineItems。我的代碼如下。
@Entity
@Table(name = "order")
@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long orderId;
private String orderNumber;
@OneToMany(mappedBy = "order")
private List<OrderLineItems> orderLineItems;
}
@Entity
@Getter
@Setter
@Table(name = "order_line_items")
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class OrderLineItems {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long orderLineItemsId;
private String skuCode;
private BigDecimal price;
private Integer quantity;
@ManyToOne(optional = false)
private Order order;
}
上面的代碼導致 SqlSyntaxErrorException。跟蹤的相關部分如下所示。我究竟做錯了什么？
2022-04-16 12:39:22.643 INFO 85559 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
Hibernate: create table order (order_id bigint not null auto_increment, order_number varchar(255), primary key (order_id)) engine=InnoDB
2022-04-16 12:39:23.098 WARN 85559 --- [ main] o.h.t.s.i.ExceptionHandlerLoggedImpl : GenerationTarget encountered exception accepting command : Error executing DDL "create table order (order_id bigint not null auto_increment, order_number varchar(255), primary key (order_id)) engine=InnoDB" via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table order (order_id bigint not null auto_increment, order_number varchar(255), primary key (order_id)) engine=InnoDB" via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlString(AbstractSchemaMigrator.java:581) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlStrings(AbstractSchemaMigrator.java:526) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.createTable(AbstractSchemaMigrator.java:293) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:74) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:220) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:123) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:196) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:85) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:335) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:471) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1498) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.18.jar:5.3.18]
.............
Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order (order_id bigint not null auto_increment, order_number varchar(255), prima' at line 1
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.28.jar:8.0.28]
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.28.jar:8.0.28]
at com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:763) ~[mysql-connector-java-8.0.28.jar:8.0.28]
at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:648) ~[mysql-connector-java-8.0.28.jar:8.0.28]
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-4.0.3.jar:na]
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
... 34 common frames omitted
uj5u.com熱心網友回復：
@Table(name = "order"):order是 MySQL 中的保留字。將表名更改為其他名稱，fe“orders”，它將起作用:)
轉載請註明出處，本文鏈接：https://www.uj5u.com/ruanti/459050.html