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Spring Boot - 无法确定嵌入式数据库驱动程序类型为NONE

javagoogle-app-enginejpaspring-dataspring-boot
234

尝试运行我的 Web 应用时会抛出以下错误：

[INFO] WARNING: Nested in org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.dataSource; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$NonEmbeddedConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$NonEmbeddedConfiguration.dataSource()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath.:
    [INFO] org.springframework.beans.factory.BeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath.
    [INFO]  at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.getDriverClassName(DataSourceProperties.java:91)
    [INFO]  at org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$NonEmbeddedConfiguration.dataSource(DataSourceAutoConfiguration.java:100)
    [INFO]  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [INFO]  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [INFO]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [INFO]  at java.lang.reflect.Method.invoke(Method.java:606)
    [INFO]  at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115)
    [INFO]  at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
    [INFO]  at org.springframework.beans.factory.support.ConstructorResolver$3.run(ConstructorResolver.java:580)
    [INFO]  at java.security.AccessController.doPrivileged(Native Method)
    [INFO]  at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:577)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    [INFO]  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    [INFO]  at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
    [INFO]  at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
    [INFO]  at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
    [INFO]  at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
    [INFO]  at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    [INFO]  at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    [INFO]  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    [INFO]  at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:370)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    [INFO]  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    [INFO]  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    [INFO]  at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    [INFO]  at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:973)
    [INFO]  at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:750)
    [INFO]  at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    [INFO]  at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:683)
    [INFO]  at org.springframework.boot.SpringApplication.run(SpringApplication.java:313)
    [INFO]  at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:142)
    [INFO]  at org.springframework.boot.legacy.context.web.SpringBootContextLoaderListener.initWebApplicationContext(SpringBootContextLoaderListener.java:60)
    [INFO]  at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    [INFO]  at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
    [INFO]  at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
    [INFO]  at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
    [INFO]  at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
    [INFO]  at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
    [INFO]  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    [INFO]  at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    [INFO]  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    [INFO]  at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    [INFO]  at org.mortbay.jetty.Server.doStart(Server.java:224)
    [INFO]  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    [INFO]  at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:249)
    [INFO]  at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:306)
    [INFO]  at com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:26)
    [INFO]  at com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:79)
    [INFO]  at com.google.appengine.tools.development.Modules.startup(Modules.java:88)
    [INFO]  at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:254)
    [INFO]  at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:47)
    [INFO]  at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:212)
    [INFO]  at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:210)
    [INFO]  at java.security.AccessController.doPrivileged(Native Method)
    [INFO]  at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:210)
    [INFO]  at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:277)
    [INFO]  at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
    [INFO]  at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:219)
    [INFO]  at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:210)
我相信我已经拥有正确的组合：datanucleus-appengine 和 datanucleus jars：

2.1 版本：需要 DataNucleus 3.1.x（core, api-jdo, api-jpa, enhancer）。需要 SDK 1.6.4+。请注意，此版本 Datanucleus 不再得到 DataNucleus 项目的支持。

JPA 应用程序配置：

@Configuration
@EnableJpaRepositories("demo.core.entity")
@EnableTransactionManagement
class JpaApplicationConfig {
    private static final Logger logger = Logger
            .getLogger(JpaApplicationConfig.class.getName());
    @Bean
    public AbstractEntityManagerFactoryBean entityManagerFactory() {
        logger.info("Loading Entity Manager...");
        LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
        factory.setPersistenceUnitName("transactions-optional");
        return factory;
    }
    @Bean
    public PlatformTransactionManager transactionManager() {
        logger.info("Loading Transaction Manager...");
        JpaTransactionManager txManager = new JpaTransactionManager();
        txManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return txManager;
    }
    @Bean
    public PersistenceExceptionTranslator persistenceExceptionTranslator() {
        return new OpenJpaDialect();
    }
}

Application.java

@Configuration
@ComponentScan
@EnableAutoConfiguration
@RestController
public class Application {

    private static final EntityManagerFactory INSTANCE =
            Persistence.createEntityManagerFactory("transactions-optional");

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @RequestMapping("/")
    public String home() {
        return "Hello World";
    }

}

POM：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="...">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.demohq</groupId>
    <artifactId>demo-boot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>demo-boot</name>
    <description>Demo project</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.1.0.BUILD-SNAPSHOT</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-legacy</artifactId>
            <version>1.1.0.BUILD-SNAPSHOT</version>
        </dependency>
        <!--<dependency>-->
            <!--<groupId>net.kindleit</groupId>-->
            <!--<artifactId>gae-runtime</artifactId>-->
            <!--<version>${gae.version}</version>-->
            <!--<type>pom</type>-->
            <!--<scope>provided</scope>-->
        <!--</dependency>-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>
        <!--<dependency>-->
            <!--<groupId>org.hsqldb</groupId>-->
            <!--<artifactId>hsqldb</artifactId>-->
            <!--<scope>runtime</scope>-->
        <!--</dependency>-->
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-labs</artifactId>
            <version>${gae.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-stubs</artifactId>
            <version>${gae.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-testing</artifactId>
            <version>${gae.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- DataNucleus -->
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-api-jpa</artifactId>
            <version>${datanucleus.jpa.version}</version>
        </dependency>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-core</artifactId>
            <version>${datanucleus.jpa.version}</version>
        </dependency>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-enhancer</artifactId>
            <version>${datanucleus.jpa.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine.orm</groupId>
            <artifactId>datanucleus-appengine</artifactId>
            <version>${datanucleus.version}</version>
            <!-- Need to exclude the enhancer since it interfere with the enhancer plugin. -->
            <exclusions>
                <exclusion>
                    <groupId>org.datanucleus</groupId>
                    <artifactId>datanucleus-enhancer</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>javax.jdo</groupId>
            <artifactId>jdo-api</artifactId>
            <version>3.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.geronimo.specs</groupId>
            <artifactId>geronimo-jpa_2.0_spec</artifactId>
            <version>1.1</version>
        </dependency>

        <!-- OpenJPA -->
        <dependency>
            <groupId>org.apache.openjpa</groupId>
            <artifactId>openjpa-persistence</artifactId>
            <version>2.3.0</version>
        </dependency>


    </dependencies>

    <properties>
        <start-class>demo.Application</start-class>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.7</java.version>
        <m2eclipse.wtp.contextRoot>/</m2eclipse.wtp.contextRoot>
        <datanucleus.jpa.version>3.1.1</datanucleus.jpa.version>
        <datanucleus.version>2.1.2</datanucleus.version>
        <gae.version>1.8.8</gae.version>
        <gae.home>${settings.localRepository}/com/google/appengine/appengine-java-sdk/${gae.version}/appengine-java-sdk/appengine-java-sdk-${gae.version}</gae.home>
        <gae.application.version>test</gae.application.version>
        <!--<org.springframework-version>4.0.5.RELEASE</org.springframework-version>-->
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <!--
            <plugin>
                <groupId>net.kindleit</groupId>
                <artifactId>maven-gae-plugin</artifactId>
                <version>0.9.6</version>
                <dependencies>
                    <dependency>
                        <groupId>net.kindleit</groupId>
                        <artifactId>gae-runtime</artifactId>
                        <version>${gae.version}</version>
                        <type>pom</type>
                    </dependency>
                </dependencies>
            </plugin>
            -->
            <plugin>
                <groupId>com.google.appengine</groupId>
                <artifactId>appengine-maven-plugin</artifactId>
                <version>${gae.version}</version>
                <configuration>
                    <enableJarClasses>false</enableJarClasses>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-release-plugin</artifactId>
                <configuration>
                    <goals>gae:deploy</goals>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat6-maven-plugin</artifactId>
                <version>2.0</version>
                <configuration>
                    <path>/</path>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.datanucleus</groupId>
                <artifactId>maven-datanucleus-plugin</artifactId>
                <version>${datanucleus.jpa.version}</version>
                <configuration>
                    <api>JPA</api>
                    <!--<mappingIncludes>**/entity/*.class</mappingIncludes>-->
                    <verbose>true</verbose>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.datanucleus</groupId>
                        <artifactId>datanucleus-core</artifactId>
                        <version>${datanucleus.jpa.version}</version>
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <phase>compile</phase>
                        <goals>
                            <goal>enhance</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <profiles>
        <!-- We can configure our integration server to activate this profile and 
            perform gae:deploy, thus uploading latest snapshot to the http://1.latest.<applicationName>.appspot.com 
            automatically -->
        <profile>
            <id>integration-build</id>
            <properties>
                <gae.application.version>stage</gae.application.version>
            </properties>
        </profile>

        <!-- This profile will activate automatically during release and upload 
            application to the http://2.latest.<applicationName>.appspot.com (We might 
            want to set the 2nd version as our applications Default version to be accessible 
            at http://<applicationName>.appspot.com) -->
        <profile>
            <id>release-build</id>
            <activation>
                <property>
                    <name>performRelease</name>
                    <value>true</value>
                </property>
            </activation>

            <properties>
                <!-- During release, set application version in appengine-web.xml to 
                    2 -->
                <gae.application.version>release</gae.application.version>
            </properties>
        </profile>
    </profiles>

    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>http://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>http://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>http://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>http://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

我想知道我的应用程序还缺少什么？我按照这里的说明进行操作 在Google Appengine上使用Spring Data JPA

如果我将＠EnableAutoConfiguration注释掉，我会得到以下输出：[INFO]警告：metricFilter失败：org.springframework.beans.factory.NoSuchBeanDefinitionException：未定义名称为'metricFilter'的bean。 - quarks
这里是完整的代码：http://bit.ly/1i53oAq - quarks
在我的情况下，它是spring-boot-starter-data-jpa。 - Anand Rockzz
36个回答
191
您未提供足够的信息给Spring Boot以自动配置DataSource。为此，您需要在application.properties中添加一些带有spring.datasource前缀的属性。请查看DataSourceProperties以查看可以设置的所有属性。
您需要提供适当的URL和驱动程序类名：
spring.datasource.url = …
spring.datasource.driver-class-name = …
3
不确定在这里放什么，我正在使用DataNucleus + Google App Engine。 - quarks
@xybrek 只需在您的应用程序中添加 application.properties 文件，并在其中添加数据源属性。 - iCrus
1
spring.datasource.url = jdbc:mysql://localhost/abc #spring.datasource.driverClassName = com.mysql.jdbc.Driver spring.datasource.name=olabsenglishdb spring.datasource.username=xxxx spring.datasource.password=xxxx spring.datasource.driver-class-name= com.mysql.jdbc.Driver spring.jpa.database=mysql spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect - swapyonubuntu
1
我做了同样的事情，在IntelliJ中运行应用程序时代码运行良好，但是当我创建一个jar文件并使用java -jar myJar.jar运行它时，它会给我相同的错误。 - Syed Anas
如果有人想在运行时配置数据源怎么办？ - jasmad
121
如果您想使用Spring Boot Starter中嵌入的H2数据库，请在您的pom文件中添加以下依赖项。
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>1.3.156</version>
    </dependency>

但是如评论中所提到的，嵌入式H2数据库将数据存储在内存中，而不会永久存储。

3
我也遇到了使用spring-boot-starter-jdbc时的同样问题。尝试了这个建议后，问题得以解决。 - bluecollarcoder
5
这不是一个真正的解决方案。据我所知，H2 不会永久保存数据。 - SARose
10
当然不会！这是一种“内存型”数据库。 - user672009
1
@user672009，不正确。H2不仅是一个内存数据库。请参阅http://www.h2database.com/html/features.html。话虽如此，这是一个糟糕的解决方案。 - Jason Nichols
5
我正在尝试构建某个应用程序，并遇到了“Cannot determine ... for database type NONE”的错误。尝试其他解决方案后，我尝试了这种方法，它有效了。该应用程序被设计为使用两个数据库，通过属性进行配置。我已经配置了它们，但遇到了错误。在添加H2依赖项后，没有更多错误。根据我所知，该应用程序使用我指定的其他数据库，从未使用H2。这可能是spring-boot的副作用或者是该应用程序设计上的问题，但在启动之前需要H2。由于其他人也遇到了这个问题，所以它不仅仅是这个应用程序的问题。 - Mr. Lance E Sloan
显示剩余4条评论
96

我曾经遇到过同样的问题，排除DataSourceAutoConfiguration后解决了问题。

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class RecommendationEngineWithCassandraApplication {

    public static void main(String[] args) {
        SpringApplication.run(RecommendationEngineWithCassandraApplication.class, args);
    }
}
3
谢谢！可以在application.properties中进行配置，例如spring.main.web-environment=false。 - zhuguowei
2
我在一个非SpringBootApplication类中发现了@EnableAutoConfiguration，所以我不得不在那里添加排除。说实话，我可能一开始就不需要在那里使用@EnableAutoConfiguration :/ - cs94njw
67

这对我起作用了（1.3.0.M5）：

import org.springframework.boot.autoconfigure.jdbc.*;
import org.springframework.boot.autoconfigure.orm.jpa.*;

@Configuration
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
public class Application {

排除这两个类。

它与以下内容不兼容：

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
7
这篇文章是为那些不明白为什么他们的应用程序“神秘地”需要数据库访问权限而感到困惑的人准备的，尤其是当数据库访问权限已经由其他应用程序处理时，这个应用程序只是一个“客户端”的情况。 - cst1992
38
你可以添加
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

将此添加到您的application.properties文件中。

当您有多个配置文件且其中一个是内存中时，这将特别有用。 - Doe Johnson
1
对我来说，我还需要排除HibernateJpaAutoConfiguration才能正常工作：spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration, org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration - AbdelRahmane
在我的情况下，它从命令行启动时完美地工作。 - Fadi Chamieh
20

现在我仔细看了一下，我认为DataSource问题是一个转移注意力的问题。Boot的Hibernate自动配置正在被触发，这就需要一个DataSource。由于你依赖了spring-boot-starter-data-jpa，它会拉取hibernate-entitymanager，因此Hibernate就在类路径上。

更新你的spring-boot-starter-data-jpa依赖以排除Hibernate：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
        </exclusion>
    </exclusions>
</dependency>
1
错误仍然相同 :-( - quarks
你确定你已经正确地应用了排除吗？mvn dependency:tree可以帮助你进行检查。在排除生效后，DataSource的问题对我来说已经解决了（现在我看到“Type demo.core.entity.Resource is not a known managed type”，但这是一个单独的问题）。 - Andy Wilkinson
嗨，安迪，这是不是意味着你测试了我发布的实际项目？看起来很有前途。 - quarks
1
是的，那是你发布的项目。我所做的唯一更改就是按照上述说明添加了Hibernate排除。 - Andy Wilkinson
对于较新的spring-boot-starter-data-jpa版本，您需要排除'spring-boot-starter-jdbc'。这对我有效。 - Rusli Usman
显示剩余5条评论
17

来自Spring手册。

Spring Boot可以自动配置嵌入式H2、HSQL和Derby数据库。您不需要提供任何连接URL，只需包含要使用的嵌入式数据库的构建依赖项即可。

例如，典型的POM依赖项是：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.hsqldb</groupId>
    <artifactId>hsqldb</artifactId>
    <scope>runtime</scope>
</dependency>

对我而言，不使用spring-boot-starter-data-jpa依赖，仅使用spring-boot-starter-jdbc依赖就行了，只要我在依赖中包含了h2（或hsqldb）。

9

Spring Boot会在application.properties文件中查找数据源属性。

请在application.properties或yml文件中定义它。

application.properties

spring.datasource.url=xxx
spring.datasource.username=xxx
spring.datasource.password=xxx
spring.datasource.driver-class-name=xxx

如果您需要自己的配置，您可以设置自己的配置文件，并在bean创建时使用数据源值。
7

我不知道是否太晚回答了。但是我可以通过在spring boot中排除DataSourceAutoConfiguration来解决这个问题。

3
排除文档在此处找到：http://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-auto-configuration.html - Shorn
5

我在使用Spring Data为ElasticSearch编写API时遇到了这个异常。我按照以下步骤解决了问题。

@SpringDataApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
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