具有休眠功能的弹簧启动在使用 H2 数据库启动时生成丢弃约束错误
我正在使用spring-boot,并且有一个像这样配置的H2数据库(在appsage.properties中)。
spring.datasource.url=jdbc:h2:mem:AZ;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
在日志中,我看到以下错误:
o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
org.hibernate.Version : HHH000412: Hibernate Core {4.3.5.Final}
org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {4.0.4.Final}
org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
org.hibernate.tool.hbm2ddl.SchemaExport : HHH000227: Running hbm2ddl schema export
org.hibernate.tool.hbm2ddl.SchemaExport : HHH000389: Unsuccessful: alter table key_request drop constraint FK_53shrbc21c25inskpp1yoxxss if exists
org.hibernate.tool.hbm2ddl.SchemaExport : Table "KEY_REQUEST" not found; SQL statement:
alter table key_request drop constraint FK_53shrbc21c25inskpp1yoxxss if exists [42102-178]
即使休眠将这些报告为错误,我也可以登录到H2控制台并查看约束,它们似乎很好。
SELECT TABLE_NAME, INDEX_NAME, COLUMN_NAME, INDEX_TYPE_NAME FROM information_schema.indexes WHERE TABLE_NAME='KEY_REQUEST';
TABLE_NAME INDEX_NAME COLUMN_NAME INDEX_TYPE_NAME
KEY_REQUEST PRIMARY_KEY_F REQUEST_ID PRIMARY KEY
KEY_REQUEST FK_53SHRBC21C25INSKPP1YOXXSS_INDEX_F USER_ID INDEX
如果真的看起来像休眠在实际创建数据库之前试图删除这些约束(即休眠中的某种错误)。有没有办法避免这些错误堵塞日志,或者表明某个地方发生了真正的故障?
更新 1
尝试使用此设置强制应用程序仅执行更新:
spring.jpa.hibernate.ddl-auto=update
导致以下错误(所有其他错误消失):
org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000388: Unsuccessful: alter table lti_result add constraint FK_1cnh9amy5br8owkmafsrth3as foreign key (result_id) references lti_link
org.hibernate.tool.hbm2ddl.SchemaUpdate : Constraint "FK_1CNH9AMY5BR8OWKMAFSRTH3AS" already exists; SQL statement:
alter table lti_result add constraint FK_1cnh9amy5br8owkmafsrth3as foreign key (result_id) references lti_link [90045-178]
注:来源在这里:https://github.com/azeckoski/lti_starter
具体来说,配置:https://github.com/azeckoski/lti_starter/blob/master/src/main/resources/application.properties
和模型:https://github.com/azeckoski/lti_starter/tree/master/src/main/java/ltistarter/model