使用 Spring-Data 配置 MongoDb 时出现异常答案

【问题标题】：Exception while configuring MongoDb with Spring-Data使用 Spring-Data 配置 MongoDb 时出现异常
【发布时间】：2015-10-31 00:08:18
【问题描述】：

应用程序运行时出现此错误。我正在使用带有弹簧数据的 MongoDb。另外，我正在使用弹簧靴。

[org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext] (MSC service thread 1-3) Exception encountered during context initialization - cancelling refresh attempt: 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]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method '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.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1111) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1006) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:117) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:108) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:68) [spring-boot-1.2.2.RELEASE.jar:1.2.2.RELEASE]
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:182) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:87)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:72)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_80]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_80]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_80]
Caused by: 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$NonEmbeddedConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561) [spring-   beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
... 34 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/ DataSourceAutoConfiguration$NonEmbeddedConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method '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.
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1111) [spring-    beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1006) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533) [spring-   beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
... 36 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method '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.
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
... 48 more

我的 application.properties 文件中有以下几行。

spring.data.mongodb.host=127.0.0.1
spring.data.mongodb.port=27017
spring.datasource.driverClassName=com.mongodb.Mongo
spring.data.mongodb.database=DigitalDiary
spring.data.mongodb.repositories.enabled=true

我的实体（文档），这个类与主类在不同的包中。

@Document(collection = "blood_group_collection")
public class BloodGroup {

@Id
private String _id;
@Indexed(unique=true)
private String blood_group_type;

public BloodGroup(String blood_group_type) {
    super();
    this.blood_group_type = blood_group_type;
}

public String get_id() {
    return _id;
}

public String getBlood_group_type() {
    return blood_group_type;
}

public void setBlood_group_type(String blood_group_type) {
    this.blood_group_type = blood_group_type;
}

}

我的 MongoRepository 类。该类与主类和实体（文档）类位于不同的包中。

public interface BloodGroupRepository extends    MongoRepository<BloodGroup, String>{

}

我在主类中有@EnableMongoRepositories("com.awt.mongo.repository")。
我找不到任何解决方案。
任何帮助将不胜感激。谢谢。

【问题讨论】：

看看stackoverflow.com/questions/13311603/…这个异常好像是自动连线设置不正确
根本原因是：由：org.springframework.beans.factory.BeanCreationException：无法自动装配字段：私有 javax.sql.DataSource 。查看有关数据源配置的 sprint 文档：docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/…
我检查了您给定的链接，但我无法找出问题所在。你能帮忙解决这个问题吗，我也发布了日志和课程。
有谁能解决我的问题吗？我从 7 小时开始就被困在这上面。

标签： java mongodb spring-boot

【解决方案1】：

例外是因为 spring jpa。我从 pom.xml 中删除了 spring-jpa 依赖项，它解决了我的问题。感谢大家的帮助和快速响应。

【讨论】：

它也解决了我的问题，想知道是什么原因。 Mongodb是不是JPA配置的？
mongodb由spring data配置

【解决方案2】：

我可以从你的错误中看出你的数据源配置不正确：

“引起：org.springframework.beans.BeanInstantiationException：无法实例化[javax.sql.DataSource]：工厂方法'dataSource'抛出异常；嵌套异常是org.springframework.beans.factory.BeanCreationException：无法确定嵌入数据库类型 NONE 的数据库驱动程序类。如果您想要一个嵌入式数据库，请在类路径中放置一个受支持的数据库。"

我怀疑以下语句：

spring.datasource.driverClassName=com.mongodb.Mongo

错了——这看起来像一个 JDBC 驱动程序，但由于 MongoDB 是一个 NoSQL 数据库，它的驱动程序不符合相同的标准。

spring documentation 建议 MongoDB 的以下属性：

spring.data.mongodb.host= # the db host
spring.data.mongodb.port=27017 # the connection port (defaults to 27107)
spring.data.mongodb.uri=mongodb://localhost/test # connection URL
spring.data.mongodb.database=
spring.data.mongodb.authentication-database=
spring.data.mongodb.grid-fs-database=
spring.data.mongodb.username=
spring.data.mongodb.password=
spring.data.mongodb.repositories.enabled=true # if spring data repository support is enabled

【讨论】：

我删除了 spring.datasource.driverClassName=com.mongodb.Mongo，仍然得到同样的异常。我的本地 mongoDb 没有用户名和密码。
还是一模一样的错误吗？ Spring Exceptions 包含大量信息，有时很容易错过堆栈跟踪深处的真正错误
是的，我又检查了一遍。同样的例外。
我认为它根本不应该尝试创建 javax.sql.DataSource，这不适用于 MongoDB。您的 application.properties 中有其他与数据库相关的代码吗？
您是否尝试过从 application.properties 中删除所有 MongoDB 属性？在Spring Boot / MongoDB example code 中，他们在 application.properties 中没有任何内容

【解决方案3】：

我删除了 POM 文件中的<version> 标签，问题已修复

【讨论】：

【解决方案4】：

我添加了以下依赖

JDBC 依赖项
spring-jpa 依赖

当我删除两个依赖项后，我的问题得到了解决

【讨论】：