Spring Boot – データベースタイプがNONEのため、埋め込みデータベースのドライバークラスを特定できません。
この文章を読んでいるなら、おそらくSpring Bootアプリケーションの実行中に「Cannot determine embedded database driver class for database type NONE」というエラーが発生したと思います。以下の画像は、JUnitテストケースの実行中に「Cannot determine embedded database driver class for database type NONE」というエラーが発生した簡単なSpring Bootスタータープロジェクトです。
データベースタイプNONEに対する埋め込みデータベースドライバークラスを特定できません。
このエラーは、Spring BootアプリケーションにDataSourceが設定されていない場合に発生します。Spring Bootアプリケーションを実行すると、DataSourceの設定を試み、設定が提供されていない場合にこのエラーメッセージをスローします。以下は、私のSpring Bootスタータープロジェクトに含まれていたクラスです。
package com.scdev.spring;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBatchHelloWorldApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBatchHelloWorldApplication.class, args);
}
}
package com.scdev.spring;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBatchHelloWorldApplicationTests {
@Test
public void contextLoads() {
}
}
私のapplication.propertiesファイルが空でした。今、JUnitクラスを実行すると、以下のエラーが発生します。
11:42:49.460 [main] DEBUG org.springframework.test.context.junit4.SpringJUnit4ClassRunner - SpringJUnit4ClassRunner constructor called with [class com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.469 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate]
11:42:49.474 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)]
11:42:49.486 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating TestContextBootstrapper for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests] from class [org.springframework.boot.test.context.SpringBootTestContextBootstrapper]
11:42:49.495 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Neither @ContextConfiguration nor @ContextHierarchy found for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests], using SpringBootContextLoader
11:42:49.498 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]: class path resource [com/scdev/spring/SpringBatchHelloWorldApplicationTests-context.xml] does not exist
11:42:49.498 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]: class path resource [com/scdev/spring/SpringBatchHelloWorldApplicationTestsContext.groovy] does not exist
11:42:49.499 [main] INFO org.springframework.test.context.support.AbstractContextLoader - Could not detect default resource locations for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]: no resource found for suffixes {-context.xml, Context.groovy}.
11:42:49.499 [main] INFO org.springframework.test.context.support.AnnotationConfigContextLoaderUtils - Could not detect default configuration classes for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]: SpringBatchHelloWorldApplicationTests does not declare any static, non-private, non-final, nested classes annotated with @Configuration.
11:42:49.532 [main] DEBUG org.springframework.test.context.support.ActiveProfilesUtils - Could not find an 'annotation declaring class' for annotation type [org.springframework.test.context.ActiveProfiles] and class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.539 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemProperties] PropertySource with lowest search precedence
11:42:49.540 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemEnvironment] PropertySource with lowest search precedence
11:42:49.540 [main] DEBUG org.springframework.core.env.StandardEnvironment - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
11:42:49.547 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Resolved classpath location [com/scdev/spring/] to resources [URL [file:/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/test-classes/com/scdev/spring/], URL [file:/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring/]]
11:42:49.548 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Looking for matching resources in directory tree [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/test-classes/com/scdev/spring]
11:42:49.548 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/test-classes/com/scdev/spring] for files matching pattern [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/test-classes/com/scdev/spring/*.class]
11:42:49.551 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Looking for matching resources in directory tree [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring]
11:42:49.551 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring] for files matching pattern [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring/*.class]
11:42:49.551 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Resolved location pattern [classpath*:com/scdev/spring/*.class] to resources [file [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/test-classes/com/scdev/spring/SpringBatchHelloWorldApplicationTests.class], file [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring/SpringBatchHelloWorldApplication.class]]
11:42:49.589 [main] DEBUG org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider - Identified candidate component class: file [/Users/scdev/CODE/hackathon/SpringBatchHelloWorld/target/classes/com/scdev/spring/SpringBatchHelloWorldApplication.class]
11:42:49.590 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Found @SpringBootConfiguration com.scdev.spring.SpringBatchHelloWorldApplication for test class com.scdev.spring.SpringBatchHelloWorldApplicationTests
11:42:49.592 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - @TestExecutionListeners is not present for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]: using defaults.
11:42:49.597 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener, org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]
11:42:49.612 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Could not instantiate TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [javax/servlet/ServletContext]
11:42:49.612 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using TestExecutionListeners: [org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@587d1d39, org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@58c1670b, org.springframework.test.context.support.DirtiesContextTestExecutionListener@6b57696f, org.springframework.test.context.transaction.TransactionalTestExecutionListener@5bb21b69, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@6b9651f3, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener@38bc8ab5, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener@687080dc, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener@23d2a7e8, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener@7a9273a8, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener@26a7b76d, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener@4abdb505]
11:42:49.613 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved @ProfileValueSourceConfiguration [null] for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.614 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved ProfileValueSource type [class org.springframework.test.annotation.SystemProfileValueSource] for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.623 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved @ProfileValueSourceConfiguration [null] for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.623 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved ProfileValueSource type [class org.springframework.test.annotation.SystemProfileValueSource] for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.624 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved @ProfileValueSourceConfiguration [null] for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.624 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved ProfileValueSource type [class org.springframework.test.annotation.SystemProfileValueSource] for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.624 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved @ProfileValueSourceConfiguration [null] for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.624 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved ProfileValueSource type [class org.springframework.test.annotation.SystemProfileValueSource] for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.627 [main] DEBUG org.springframework.test.context.support.AbstractDirtiesContextTestExecutionListener - Before test class: context [DefaultTestContext@69b0fd6f testClass = SpringBatchHelloWorldApplicationTests, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [MergedContextConfiguration@757942a1 testClass = SpringBatchHelloWorldApplicationTests, locations = '{}', classes = '{class com.scdev.spring.SpringBatchHelloWorldApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.context.SpringBootTestContextCustomizer@6ea12c19, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@174d20a, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@4f933fd1], contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]]], class annotated with @DirtiesContext [false] with mode [null].
11:42:49.627 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved @ProfileValueSourceConfiguration [null] for test class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.627 [main] DEBUG org.springframework.test.annotation.ProfileValueUtils - Retrieved ProfileValueSource type [class org.springframework.test.annotation.SystemProfileValueSource] for class [com.scdev.spring.SpringBatchHelloWorldApplicationTests]
11:42:49.628 [main] DEBUG org.springframework.test.context.support.DependencyInjectionTestExecutionListener - Performing dependency injection for test context [[DefaultTestContext@69b0fd6f testClass = SpringBatchHelloWorldApplicationTests, testInstance = com.scdev.spring.SpringBatchHelloWorldApplicationTests@b7dd107, testMethod = [null], testException = [null], mergedContextConfiguration = [MergedContextConfiguration@757942a1 testClass = SpringBatchHelloWorldApplicationTests, locations = '{}', classes = '{class com.scdev.spring.SpringBatchHelloWorldApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.context.SpringBootTestContextCustomizer@6ea12c19, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@174d20a, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@4f933fd1], contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]]]].
11:42:49.676 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemProperties] PropertySource with lowest search precedence
11:42:49.676 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemEnvironment] PropertySource with lowest search precedence
11:42:49.676 [main] DEBUG org.springframework.core.env.StandardEnvironment - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
11:42:49.677 [main] DEBUG org.springframework.core.env.MutablePropertySources - Adding [inline] PropertySource with highest search precedence
11:42:49.681 [main] DEBUG org.springframework.test.context.support.TestPropertySourceUtils - Adding inlined properties to environment: {spring.jmx.enabled=false, org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true, server.port=-1}
11:42:49.681 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [Inlined Test Properties] PropertySource with highest search precedence
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.1.RELEASE)
2017-03-04 11:42:49.876 INFO 51131 --- [ main] .s.SpringBatchHelloWorldApplicationTests : Starting SpringBatchHelloWorldApplicationTests on scdev.local with PID 51131 (started by scdev in /Users/scdev/CODE/hackathon/SpringBatchHelloWorld)
2017-03-04 11:42:49.877 INFO 51131 --- [ main] .s.SpringBatchHelloWorldApplicationTests : No active profile set, falling back to default profiles: default
2017-03-04 11:42:49.902 INFO 51131 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@59474f18: startup date [Sat Mar 04 11:42:49 IST 2017]; root of context hierarchy
2017-03-04 11:42:50.311 WARN 51131 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
2017-03-04 11:42:50.318 INFO 51131 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-03-04 11:42:50.322 ERROR 51131 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.1.RELEASE)
2017-03-04 11:42:50.347 INFO 51131 --- [ main] .s.SpringBatchHelloWorldApplicationTests : Starting SpringBatchHelloWorldApplicationTests on scdev.local with PID 51131 (started by scdev in /Users/scdev/CODE/hackathon/SpringBatchHelloWorld)
2017-03-04 11:42:50.348 INFO 51131 --- [ main] .s.SpringBatchHelloWorldApplicationTests : No active profile set, falling back to default profiles: default
2017-03-04 11:42:50.349 INFO 51131 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@2a448449: startup date [Sat Mar 04 11:42:50 IST 2017]; root of context hierarchy
2017-03-04 11:42:50.475 WARN 51131 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
2017-03-04 11:42:50.477 INFO 51131 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-03-04 11:42:50.479 ERROR 51131 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
2017-03-04 11:42:50.486 ERROR 51131 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@58c1670b] to prepare test instance [com.scdev.spring.SpringBatchHelloWorldApplicationTests@b7dd107]
java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) ~[spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) ~[spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:47) ~[spring-boot-test-autoconfigure-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) ~[spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120) ~[spring-boot-test-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ~[spring-test-4.3.6.RELEASE.jar:4.3.6.RELEASE]
... 24 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
... 41 common frames omitted
Caused by: org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:246) ~[spring-boot-autoconfigure-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:183) ~[spring-boot-autoconfigure-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:42) ~[spring-boot-autoconfigure-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat.dataSource(DataSourceConfiguration.java:56) ~[spring-boot-autoconfigure-1.5.1.RELEASE.jar:1.5.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_73]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_73]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_73]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
... 42 common frames omitted
Embeddedデータベースのドライバークラスを特定できません、という問題に対する修正方法
私のJavaのクラスを見てわかる通り、何もありませんので、エラーはSpring Bootと何か関係があると思います。この問題を修正するには、2つの方法が見つかりました。
-
- スプリングブートのアプリケーションクラスでDataSourceの自動設定を除外します。以下のコードで、EnableAutoConfiguration注釈を使用してこれを行うことができます。
package com.scdev.spring;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class SpringBatchHelloWorldApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBatchHelloWorldApplication.class, args);
}
}
上記の設定で、JUnitテストケースは正常に実行され、Cannot determine embedded database driver class for database type NONEエラーは発生しません。
この問題を修正する別の方法は、application.propertiesファイルでspring.datasource.urlを提供することです。私の場合、データベースのユーザー名とパスワードは提供していませんでした。
spring.datasource.url=jdbc:mysql://localhost/Test_DB
これでSpring Bootのデータソースエラーの修正は完了です。これらの修正があなたのSpring Bootアプリケーションの問題を解決するのに役立つことを願っています。