如果 spring.jpa.hibernate.ddl-auto 不是“更新”，则 Spring Boot 运行脚本？

Question

如果我设置了 application.properties，它会在加载时出错

spring.jpa.hibernate.ddl-auto = update
spring.datasource.data=classpath:/init.dml/TB_FR_LANGUAGE_INFO_INITDATA.sql,classpath:/init.dml/TB_FR_MESSAGE_INFO_INITDATA.sql

只有当 spring.jpa.hibernate.ddl-auto 是 create-drop 或 create 时，如何才能 spring boot 运行初始脚本？

更新

如何避免过去添加一次的初始数据插入脚本？

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of resource class path resource [init.dml/TB_FR_LANGUAGE_INFO_INITDATA.sql]: INSERT INTO TB_FR_LANGUAGE_INFO ( LANGUAGE_SQ, LANGUAGE_ID, LANGUAGE_NM, USE_YN, ORDER_NO, CREATE_DT, CREATE_USR_ID) VALUES ('LAN_000001','KO', 'Korean', 'Y' , 0, NOW(),'superadmin'); nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'LAN_000001' for key 'PRIMARY'
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1517)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:565)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:531)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:697)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:670)
    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:169)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:354)
    ... 120 more
Caused by: org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of resource class path resource [init.dml/TB_FR_LANGUAGE_INFO_INITDATA.sql]: INSERT INTO TB_FR_LANGUAGE_INFO ( LANGUAGE_SQ, LANGUAGE_ID, LANGUAGE_NM, USE_YN, ORDER_NO, CREATE_DT, CREATE_USR_ID) VALUES ('LAN_000001','KO', 'Korean', 'Y' , 0, NOW(),'superadmin'); nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'LAN_000001' for key 'PRIMARY'
    at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:472)
    at org.springframework.jdbc.datasource.init.ResourceDatabasePopulator.populate(ResourceDatabasePopulator.java:229)
    at org.springframework.jdbc.datasource.init.DatabasePopulatorUtils.execute(DatabasePopulatorUtils.java:48)
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.runScripts(DataSourceInitializer.java:153)
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.runDataScripts(DataSourceInitializer.java:112)
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.onApplicationEvent(DataSourceInitializer.java:105)
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.onApplicationEvent(DataSourceInitializer.java:46)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
    at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.postProcessAfterInitialization(DataSourceInitializedPublisher.java:69)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:422)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1719)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:113)
    ... 130 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'LAN_000001' for key 'PRIMARY'
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
    at com.mysql.jdbc.Util.getInstance(Util.java:360)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:971)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2526)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2484)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:848)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:742)
    at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:457)
    ... 143 more

Answer 1

您使用的休眠 ddl-auto 顾名思义，仅适用于 DDL，即模式定义。要查看实际代码检查这个休眠文件：-

hibernate-orm/hibernate-core/src/main/java/org/hibernate/cfg/SettingsFactory.java

String autoSchemaExport = properties.getProperty( AvailableSettings.HBM2DDL_AUTO );
if ( "validate".equals(autoSchemaExport) ) {
    settings.setAutoValidateSchema( true );
}
else if ( "update".equals(autoSchemaExport) ) {
    settings.setAutoUpdateSchema( true );
}
else if ( "create".equals(autoSchemaExport) ) {
    settings.setAutoCreateSchema( true );
}
else if ( "create-drop".equals( autoSchemaExport ) ) {
    settings.setAutoCreateSchema( true );
    settings.setAutoDropSchema( true );
}
else if ( !StringHelper.isEmpty( autoSchemaExport ) ) {
    LOG.warn( "Unrecognized value for \"hibernate.hbm2ddl.auto\": " + autoSchemaExport );
}

Hibernate 不对这些表上插入/存在的数据以及您实际上想要的数据进行任何验证。解决您的问题的一种方法是让您的插入以以下形式检查数据是否不存在然后仅插入：-

INSERT INTO TB_FR_LANGUAGE_INFO ( LANGUAGE_SQ, LANGUAGE_ID, LANGUAGE_NM, USE_YN, ORDER_NO, CREATE_DT, CREATE_USR_ID) 
    VALUES ('LAN_000001','KO', 'Korean', 'Y' , 0, NOW(),'superadmin') 
WHERE NOT EXISTS 
    (select LANGUAGE_SQ from TB_FR_LANGUAGE_INFO where LANGUAGE_SQ = 'LAN_000001');