我在一个有两个数据源的项目中使用Spring Batch，一个用于Spring Batch表，另一个用于业务逻辑（oracle）。
为了配置作业，我有一个BatchConfigurer的实现，在那里我为spring batch设置了数据源：

public DataSource batchDataSource() {
    return new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.H2)
            .addScript("org/springframework/batch/core/schema-h2.sql").build();
    }

要配置oracle db，我使用application.properties:

#Oracle settings
spring.datasource.url=jdbc:oracle:thin:@ip/domain
spring.datasource.username=user
spring.datasource.password=pass
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver

我在not conexion to oracle db时出现以下错误：

org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer]: Factory method 'batchDataSourceInitializer' threw exception; nested exception is java.lang.IllegalStateException: Unable to detect database type
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292)
    at com.app.app.App.main(App.java:20)
Caused by: java.lang.IllegalStateException: Unable to detect database type
    at org.springframework.util.Assert.state(Assert.java:76)
    at org.springframework.boot.jdbc.init.PlatformPlaceholderDatabaseDriverResolver.determinePlatform(PlatformPlaceholderDatabaseDriverResolver.java:132)
    at org.springframework.boot.jdbc.init.PlatformPlaceholderDatabaseDriverResolver.lambda$resolveAll$0(PlatformPlaceholderDatabaseDriverResolver.java:96)
    at org.springframework.boot.jdbc.init.PlatformPlaceholderDatabaseDriverResolver.resolveAll(PlatformPlaceholderDatabaseDriverResolver.java:121)
    at org.springframework.boot.jdbc.init.PlatformPlaceholderDatabaseDriverResolver.resolveAll(PlatformPlaceholderDatabaseDriverResolver.java:96)
    at org.springframework.boot.autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer.resolveSchemaLocations(BatchDataSourceScriptDatabaseInitializer.java:86)
    at org.springframework.boot.autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer.getSettings(BatchDataSourceScriptDatabaseInitializer.java:73)
    at org.springframework.boot.autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer.<init>(BatchDataSourceScriptDatabaseInitializer.java:48)
    at org.springframework.boot.autoconfigure.batch.BatchAutoConfiguration$DataSourceInitializerConfiguration.batchDataSourceInitializer(BatchAutoConfiguration.java:116)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 21 common frames omitted

如果oracle datasource没有用于spring batch，为什么我会出现错误“Failed to instantiate [org.springframework. Boot .autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer]：”？
当数据库（业务逻辑）中出现连接错误时，是否可以防止执行停止？