Java LiquiBase&;弹簧启动-缺少序列
在liquibase中,我的变更集如下所示:Java LiquiBase&;弹簧启动-缺少序列,java,spring,hibernate,liquibase,Java,Spring,Hibernate,Liquibase,在liquibase中,我的变更集如下所示: <createSequence schemaName="public" incrementBy="1" minValue="1" sequenceName="user_seq" /> <createTable tableName="user" schemaName="public">
<createSequence schemaName="public"
incrementBy="1"
minValue="1"
sequenceName="user_seq" />
<createTable tableName="user" schemaName="public">
<column name="id" type="bigint" defaultValueSequenceNext="user_seq">
<constraints nullable="false" primaryKey="true"/>
</column>
</createTable>
spring引导中的验证步骤未通过。Hibernate抛出:
架构验证:缺少序列[public.user\u seq]
LiquiBase执行此查询:
CREATE SEQUENCE public.user_seq INCREMENT BY 1 MINVALUE 1
Sequence user_seq created
当我将ddl auto
更改为update时,hibernate执行此查询:
创建序列public.user_seq开始1递增50
JDBC抛出异常:序列“user_seq”已经存在;SQL语句:
如何在LiquiBase中正确创建序列?
--
@Edit1-我尝试在实体中使用小写:USER_SEQ->USER_SEQ-没有帮助我正在使用spring boot
这是我的application.properties
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.hibernate.ddl-auto=none
spring.liquibase.change-log=classpath:liquibase-changeLog.xml
这是我的实体
@Entity
public class User {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "USER_SEQ")
@SequenceGenerator(name = "USER_SEQ", sequenceName = "USER_SEQ", allocationSize = 1)
private long id;
private String name;
这是我的零钱
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext
http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd
http://www.liquibase.org/xml/ns/dbchangelog
http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd">
<changeSet author="EssexBoy" id="101">
<createSequence schemaName="public" startValue="1" incrementBy="1" ordered="true" sequenceName="user_seq"/>
<createTable tableName="user" schemaName="public">
<column name="id" type="bigint">
<constraints nullable="false" primaryKey="true"/>
</column>
<column name="name" type="varchar(50)"/>
</createTable>
</changeSet>
</databaseChangeLog>
输出为
User{id=1, name='EssexBoy'}
User{id=2, name='EssexDad'}
User{id=3, name='EssexMum'}
User{id=4, name='EssexBaby'}
看看这个,检查您的更改是否成功。
jdbc:h2:mem:testdb
我的内存中有整个数据库,所以每次spring启动时都会启动create table,并且正确执行更改集。看看我的问题(更高),我写过LiquiBase执行这个SQL:CREATE SEQUENCE public.user_seq INCREMENT BY 1 MINVALUE 1
如果你将ddl auto
从none切换到validate,它仍然有效?@dramcio是的,因为validate只是一个检查,所以不会创建数据库。我有类似的代码,但当我更改为validate时,春天不会开始
@RunWith(SpringRunner.class)
@SpringBootTest
public class LiquibaseExampleApplicationTests {
@Autowired
private DataSource dataSource;
@Autowired
private UserRepository repository;
@Test
public void test1() throws Exception {
repository.save(makeUser("EssexBoy"));
repository.save(makeUser("EssexDad"));
repository.save(makeUser("EssexMum"));
repository.save(makeUser("EssexBaby"));
repository.findAll().forEach(System.out::println);
}
private User makeUser(String name) {
User user = new User();
user.setName(name);
return user;
}
}
User{id=1, name='EssexBoy'}
User{id=2, name='EssexDad'}
User{id=3, name='EssexMum'}
User{id=4, name='EssexBaby'}