While I was using Spring Boot 1.5, on application startup Hibernate executed schema.sql file located in /resources folder when appropriate configuration is set. After Spring Boot 2.0 release this feature does not work any more. I couldn't find anything about this change in documentation. Here is my application.properties file content:
spring.datasource.url=...
spring.datasource.username=...
spring.datasource.password=...
#spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.hibernate.ddl-auto=none
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
Is there some change in Spring Boot 2.0 or is this an bug/issue?
Check the documents here .
In a JPA-based app, you can choose to let Hibernate create the schema or use schema.sql, but you cannot do both. Make sure to disable spring.jpa.hibernate.ddl-auto if you use schema.sql.
You have spring.jpa.hibernate.ddl-auto=create-drop
that's why schema.sql
is not executed. Looks like this is the way Spring Boot works.
Edit
I think that the problem(not really a problem) is that your application points to a mysql instance.
See the current Spring Boot properties :
spring.datasource.initialization-mode=embedded # Initialize the datasource with available DDL and DML scripts.
The default value is embedded
- eg initialize only if you're running and embedded database, like H2.
Also see the answer of Stephan here . He said:
Adding spring.datasource.initialization-mode=always to your project is enough.
So try to set:
spring.datasource.initialization-mode=always
If you load a database that is not embedded , in Spring Boot 2 you need to add:
spring.datasource.initialization-mode=always
Check the Migration Guide :
Database Initialization
Basic DataSource initialization is now only enabled for embedded data sources and will switch off as soon as you're using a production database. The new
spring.datasource.initialization-mode
(replacingspring.datasource.initialize
) offers more control.
I once had a similar problem, even though it was an h2 (so it was an embedded DB), my h2 configuration was activated by a my-test
profile.
My test class was like:
@RunWith(SpringRunner.class)
@SpringBootTest // does not work alone
@ActiveProfiles("my-test")
public class MyEntityRepositoryTest {
The problem is @SpringBootTest
alone did not initialize the test database . I had to either use @DataJpaTest
or @SpringBootTest
+ @AutoConfigureTestDatabase
. Examples
@RunWith(SpringRunner.class)
@DataJpaTest // works
@ActiveProfiles("sep-test")
public class MyEntityRepositoryTest {
or
@RunWith(SpringRunner.class)
@SpringBootTest // these two
@AutoConfigureTestDatabase // together work
@ActiveProfiles("sep-test")
public class MyEntityRepositoryTest {
It works fine for me, you can try it. Set datasource type to what you like instead of HikariCP.
spring.datasource.initialization-mode=always
spring.datasource.type=com.mysql.jdbc.jdbc2.optional.MysqlDataSource
spring.jpa.hibernate.ddl-auto=none
As of Spring Boot Version 2.7
the property spring.datasource.initialization-mode
has been removed.
You should from this version and onwards use the replacement property spring.sql.init.mode
Example: spring.sql.init.mode:always
还有一个问题可能导致data.sql无法执行,当你不配置spring.jpa.hibernate.ddl-auto=none
时,data.sql不会被执行
I was able to make application run only after excluding Hikary CP like that:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</exclusion>
</exclusions>
</dependency>
Please, see the issue here
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