Java Spring Boot - 无法确定数据库类型 NONE 的嵌入式数据库驱动程序类
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原文地址: http://stackoverflow.com/questions/24074749/
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StackOverFlow
Spring Boot - Cannot determine embedded database driver class for database type NONE
提问by quarks
This is the error that is thrown when trying to run my web app:
这是尝试运行我的网络应用程序时引发的错误：
[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.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.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.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.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@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();
}
}
0(DevAppServerImpl.java:47)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.run(DevAppServerImpl.java:212)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.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)
I believe I have the right combination of datanucleus-appengineand datanucleusjars:
我相信我有datanucleus-appengine和datanucleus罐子的正确组合：
2.1: Requires DataNucleus 3.1.x (core, api-jdo, api-jpa, enhancer). Requires SDK 1.6.4+ Note that this release of Datanucleus is no longer supported by the DataNucleus project
2.1：需要 DataNucleus 3.1.x（核心、api-jdo、api-jpa、增强器）。需要 SDK 1.6.4+ 请注意，DataNucleus 项目不再支持此版本的 Datanucleus
JPA App Config:
JPA 应用配置：
@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";
}
}
Application.java
应用程序.java
<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>
POM:
聚甲醛：
spring.datasource.url = …
spring.datasource.driver-class-name = …
I wonder what could be missing in my app? I followed the instruction from here Using Spring Data JPA on Google Appengine
我想知道我的应用程序中可能缺少什么？我按照这里的说明在 Google Appengine 上使用 Spring Data JPA
采纳答案by Andy Wilkinson
You haven't provided Spring Boot with enough information to auto-configure a DataSource. To do so, you'll need to add some properties to application.propertieswith the spring.datasourceprefix. Take a look at DataSourcePropertiesto see all of the properties that you can set.
您还没有为 Spring Boot 提供足够的信息来自动配置DataSource. 为此，您需要application.properties使用spring.datasource前缀添加一些属性。查看DataSourceProperties以查看您可以设置的所有属性。
You'll need to provide the appropriate url and driver class name:
您需要提供适当的 url 和驱动程序类名称：
<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>
回答by Andy Wilkinson
Now that I look closer, I think that the DataSource problem is a red-herring. Boot's Hibernate auto-configuration is being triggered and that's what causing a DataSource to be required. Hibernate's on the classpath because you've got a dependency on spring-boot-starter-data-jpawhich pulls in hibernate-entitymanager.
现在我仔细观察，我认为 DataSource 问题是一个红鲱鱼。Boot 的 Hibernate 自动配置被触发，这就是导致需要 DataSource 的原因。Hibernate 位于类路径上，因为您依赖于spring-boot-starter-data-jpa拉入hibernate-entitymanager.
Update your spring-boot-starter-data-jpadependency to exclude Hibernate:
更新您的spring-boot-starter-data-jpa依赖项以排除 Hibernate：
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.3.156</version>
</dependency>
回答by user672009
If you want to use embedded H2 database from Spring Boot starter add the below dependency to your pom file.
如果您想从 Spring Boot starter 使用嵌入式 H2 数据库，请将以下依赖项添加到您的 pom 文件中。
<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>
But as mentioned in comments, the embedded H2 database keeps data in memory and doesn't stores it permanently.
但正如评论中提到的，嵌入式 H2 数据库将数据保存在内存中，不会永久存储。
回答by user3796391
In my case , I put it a maven dependency for org.jasig.cas in my pom that triggered a hibernate dependency and that caused Spring Boot to look for a datasource to auto-configure hibernate persistence. I solved it by adding the com.h2database maven dependency as suggested by user672009. Thanks guys!
就我而言，我将它放在 pom 中的 org.jasig.cas 的 maven 依赖项中，该依赖项触发了休眠依赖项，并导致 Spring Boot 寻找数据源以自动配置休眠持久性。我按照 user672009 的建议通过添加 com.h2database maven 依赖项解决了这个问题。谢谢你们！
回答by Arturo Araya
From the Spring manual.
来自Spring 手册。
Spring Boot can auto-configure embedded H2, HSQL, and Derby databases. You don't need to provide any connection URLs, simply include a build dependency to the embedded database that you want to use.
For example, typical POM dependencies would be:
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，只需包含对您要使用的嵌入式数据库的构建依赖项。
例如，典型的 POM 依赖项是：
@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class RecommendationEngineWithCassandraApplication {
public static void main(String[] args) {
SpringApplication.run(RecommendationEngineWithCassandraApplication.class, args);
}
}
For me leaving out the spring-boot-starter-data-jpa dependency and just using the spring-boot-starter-jdbc dependency worked like a charm, as long as I had h2 (or hsqldb) included as dependencies.
对我来说，忽略 spring-boot-starter-data-jpa 依赖项而只使用 spring-boot-starter-jdbc 依赖项就像一个魅力，只要我将 h2（或 hsqldb）作为依赖项包含在内。
回答by bcsshdha
I don't if it is too late to answer. I could solve this issue by excluding DataSourceAutoConfiguration from spring boot.
如果现在回答为时已晚，我不知道。我可以通过从 Spring Boot 中排除 DataSourceAutoConfiguration 来解决这个问题。
回答by Adelin
I'd the same problem and excluding the DataSourceAutoConfiguration solved the problem.
我遇到了同样的问题，排除 DataSourceAutoConfiguration 解决了这个问题。
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
回答by Anil
Doing below works.
做下面的工作。
import org.springframework.boot.autoconfigure.jdbc.*;
import org.springframework.boot.autoconfigure.orm.jpa.*;
@Configuration
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
public class Application {
But If I wanted to have dataSource, I should not do the above configuration.
The below link says that we need to all the properties in application.properties file. All the properties should start with
spring.datasource.*
但是如果我想有dataSource，我就不应该做上面的配置。下面的链接说我们需要 application.properties 文件中的所有属性。所有的属性都应该以
spring.datasource.*
http://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
http://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
回答by aliopi
This worked for me (1.3.0.M5) :
这对我有用（1.3.0.M5）：
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
Exclude both classes.
排除两个类。
It did not work with
它没有与
##代码##回答by Felipe S.
As this is one of the first topics returned in google for this error, I'll post what I did in case someone face the same issue..
I didn't want to exclude DataSourceAutoConfigurationneither use a memory database..
由于这是谷歌为此错误返回的第一个主题之一，我将发布我所做的以防万一有人遇到同样的问题..我不想排除DataSourceAutoConfiguration既不使用内存数据库..
In my case I was setting the parameters as the other repliers said but the application.propertiesfile was inside the wrong folder.. lol
就我而言，我正在按照其他回复者所说的那样设置参数，但该application.properties文件位于错误的文件夹中..lol
So in case nothing like this works, check if the file is inside src/main/resources! In my case it was inside src/main/resources/static
因此，如果没有类似的方法，请检查文件是否在里面src/main/resources！就我而言，它在里面src/main/resources/static
