Spring JPA (Hibernate) 没有符合条件的 bean 类型：javax.persistence.EntityManagerFactory

Spring JPA (Hibernate) No qualifying bean of type: javax.persistence.EntityManagerFactory

提问by Lurk21

I'm using Spring-boot, so a war deployed in Tomcat 7. When I start the app I get the following:

我正在使用 Spring-boot，所以在 Tomcat 7 中部署了一场战争。当我启动应用程序时，我得到以下信息：

  Dec 30, 2013 7:41:06 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'dispatcherServlet'
2013-12-30 19:41:06 INFO  DispatcherServlet:461 - FrameworkServlet 'dispatcherServlet': initialization started
  2013-12-30 19:41:06 INFO  SimpleUrlHandlerMapping:315 - Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
  2013-12-30 19:41:06 INFO  RequestMappingHandlerMapping:181 - Mapped "{[/user],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public com.cloudfordev.controlpanel.orm.User com.cloudfordev.controlpanel.GetController.getUser(int)
  2013-12-30 19:41:07 INFO  SimpleUrlHandlerMapping:315 - Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
  2013-12-30 19:41:07 INFO  SimpleUrlHandlerMapping:315 - Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
  2013-12-30 19:41:08 INFO  DispatcherServlet:480 - FrameworkServlet 'dispatcherServlet': initialization completed in 1957 ms
  Dec 30, 2013 7:41:08 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Dec 30, 2013 7:41:08 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Dec 30, 2013 7:41:08 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-nio-8080"]
Dec 30, 2013 7:41:08 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-nio-8080"]
Dec 30, 2013 7:41:08 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Tomcat
Dec 30, 2013 7:41:08 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-nio-8080"]
Dec 30, 2013 7:41:08 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-nio-8080"]
2013-12-30 19:41:08 INFO  AutoConfigurationReportLoggingInitializer$AutoConfigurationReportLogger:108 -


=========================
AUTO-CONFIGURATION REPORT
=========================


Positive matches:
-----------------

   MessageSourceAutoConfiguration
      - @ConditionalOnMissingBean (types: org.springframework.context.MessageSource; SearchStrategy: all) found no beans (OnBeanCondition)

   PropertyPlaceholderAutoConfiguration#propertySourcesPlaceholderConfigurer
      - @ConditionalOnMissingBean (types: org.springframework.context.support.PropertySourcesPlaceholderConfigurer; SearchStrategy: current) found no beans (OnBeanCondition)

   DataSourceAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType (OnClassCondition)
      - @ConditionalOnClass classes found: org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType (OnClassCondition)

   DataSourceTransactionManagerAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.jdbc.core.JdbcTemplate,org.springframework.transaction.PlatformTransactionManager (OnClassCondition)
      - @ConditionalOnClass classes found: org.springframework.jdbc.core.JdbcTemplate,org.springframework.transaction.PlatformTransactionManager (OnClassCondition)

   JpaBaseConfiguration.JpaWebConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - SpEL expression on org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration$JpaWebConfiguration: #{true} (OnExpressionCondition)

   DispatcherServletAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: org.springframework.web.servlet.DispatcherServlet (OnClassCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: org.springframework.web.servlet.DispatcherServlet (OnClassCondition)
      - @ConditionalOnBean (types: org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; SearchStrategy: all) found the following [tomcatEmbeddedServletContainerFactory] (OnBeanCondition)

   DispatcherServletAutoConfiguration#dispatcherServlet
      - no DispatcherServlet found (DispatcherServletAutoConfiguration.DefaultDispatcherServletCondition)

   EmbeddedServletContainerAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedTomcat
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.apache.catalina.startup.Tomcat (OnClassCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.apache.catalina.startup.Tomcat (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; SearchStrategy: current) found no beans (OnBeanCondition)

   ServerPropertiesAutoConfiguration#serverProperties
      - @ConditionalOnMissingBean (types: org.springframework.boot.context.embedded.properties.ServerProperties; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.servlet.DispatcherServlet,org.springframework.web.servlet.config.annota
tion.WebMvcConfigurerAdapter (OnClassCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.servlet.DispatcherServlet,org.springframework.web.servlet.config.annota
tion.WebMvcConfigurerAdapter (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration#hiddenHttpMethodFilter
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.HiddenHttpMethodFilter; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#defaultViewResolver
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.InternalResourceViewResolver; SearchStrategy: all) found no beans (OnBeanCondition)


Negative matches:
-----------------

   RabbitAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.amqp.rabbit.core.RabbitTemplate,com.rabbitmq.client.Channel (OnClassCondition)

   AopAutoConfiguration
      - required @ConditionalOnClass classes not found: org.aspectj.lang.annotation.Aspect,org.aspectj.lang.reflect.Advice (OnClassCondition)

   BatchAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.batch.core.launch.JobLauncher (OnClassCondition)

   JpaRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.data.jpa.repository.JpaRepository (OnClassCondition)

   MongoRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: com.mongodb.Mongo,org.springframework.data.mongodb.repository.MongoRepository (OnClassCondition)

   DataSourceAutoConfiguration.DbcpConfiguration
      - org.apache.commons.dbcp.BasicDataSource DataSource class not found (DataSourceAutoConfiguration.BasicDatabaseCondition)

   DataSourceAutoConfiguration.EmbeddedConfiguration
      - no embedded database detected (DataSourceAutoConfiguration.EmbeddedDatabaseCondition)

   DataSourceAutoConfiguration.JdbcTemplateConfiguration
      - no existing bean configured database (DataSourceAutoConfiguration.DatabaseCondition)

   DataSourceAutoConfiguration.TomcatConfiguration
      - org.apache.tomcat.jdbc.pool.DataSource DataSource class not found (DataSourceAutoConfiguration.TomcatDatabaseCondition)

   DataSourceTransactionManagerAutoConfiguration#transactionManager
      - @ConditionalOnBean (types: javax.sql.DataSource; SearchStrategy: all) found no beans (OnBeanCondition)

   JmsTemplateAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jms.core.JmsTemplate,javax.jms.ConnectionFactory (OnClassCondition)

   DeviceResolverAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.mobile.device.DeviceResolverHandlerInterceptor,org.springframework.mobile.device.DeviceHandlerMethodArgumentResolver (OnClassCondition)

   HibernateJpaAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean,org.springframework.transaction.annotation.EnableTransactionManagement,javax.persistence.EntityManager,org.hibernate.ejb.HibernateEntityManager (OnClassCondition)
      - @ConditionalOnClass classes found: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean,org.springframework.transaction.annotation.EnableTransactionManagement,javax.persistence.EntityManager,org.hibernate.ejb.HibernateEntityManager (OnClassCondition)
      - @ConditionalOnBean (types: javax.sql.DataSource; SearchStrategy: all) found no beans (OnBeanCondition)

   ReactorAutoConfiguration
      - required @ConditionalOnClass classes not found: reactor.spring.context.config.EnableReactor (OnClassCondition)

   ThymeleafAutoConfiguration
      - required @ConditionalOnClass classes not found: org.thymeleaf.spring3.SpringTemplateEngine (OnClassCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedJetty
      - required @ConditionalOnClass classes not found: org.eclipse.jetty.server.Server,org.eclipse.jetty.util.Loader (OnClassCondition)

   MultipartAutoConfiguration
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver (OnClassCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver (OnClassCondition)
      - @ConditionalOnBean (types: javax.servlet.MultipartConfigElement; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#beanNameViewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#viewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebSocketAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.web.socket.WebSocketHandler (OnClassCondition)



  java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
        at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDao': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.persistence.EntityManagerFactory] is defined at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:356)

        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1180)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:300)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:660)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:552)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:293)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:749)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:738)
        at com.cloudfordev.controlpanel.Application.main(Application.java:14)
        ... 6 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.persistence.EntityManagerFactory] is defined
        at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:559)
        at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:515)
        at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:682)
        at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:655)
        at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
        at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:353)

        ... 22 more

This is how my Application boots:

这是我的应用程序启动的方式：

@Configuration
@ComponentScan
@EnableAutoConfiguration
public class Application {

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

When my Spring controller handles the connection:

当我的 Spring 控制器处理连接时：

@Controller
public class GetController {

    private UserService userService;

    @Autowired 
    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    @RequestMapping(value = "/user", method = RequestMethod.GET)
    public @ResponseBody User getUser(@RequestParam(value="id", required=true) int id) {
        User user = null;

        user = userService.getUser(id);

        return user;
    }
}

It does a getUser on the userService:

它在 userService 上执行 getUser：

@Component
public class UserService {

    private UserDAO UserDao;

    public UserDAO getUserDao() {
        return UserDao;
    }

    @Autowired
    public void setUserDao(UserDAO UserDao) {
        this.UserDao = UserDao;
    }

    public User getUser(int id) {
        return getUserDao().load(id);
    }
}

Which uses the userDao to find the entity:

它使用 userDao 来查找实体：

@Repository("userDao")
@Transactional(propagation=Propagation.REQUIRED)
public class UserDAO {

    @PersistenceContext
    private EntityManager entityManager;

    public void insert(User user) {
        entityManager.persist(user);
    }

    public User load(int id) {
        return entityManager.find(User.class, id);
    }
}

I have the following spring-config.xml in /src/main/resources:

我在 /src/main/resources 中有以下 spring-config.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/tx  
           http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:component-scan base-package="com.mydomain.orm" />

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="persistenceXmlLocation" value="classpath:/persistence.xml" />
        <property name="persistenceUnitName" value="userPersistenceUnit" />
        <property name="dataSource" ref="dataSource" />
        <property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
        <property name="jpaDialect" ref="jpaDialect" />
    </bean>

    <bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
        <property name="database" value="HSQL" />
        <property name="databasePlatform" value="org.hibernate.dialect.HSQLDialect" />
    </bean>

    <bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
        <property name="dataSource" ref="dataSource" />
        <property name="jpaDialect" ref="jpaDialect" />
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager" />

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="org.postgresql.Driver" />
        <property name="url" value="jdbc:postgresql://localhost:5432/mydb" />
        <property name="username" value="my_user" />
        <property name="password" value="" />
    </bean>
</beans>

And last but not least the following /src/main/resources/persistence.xml:

最后但并非最不重要的以下/src/main/resources/persistence.xml：

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    version="1.0">
    <persistence-unit name="userPersistenceUnit" transaction-type="RESOURCE_LOCAL" >
    <class>com.mydomain.orm.User</class>
</persistence-unit>
</persistence>  

What do I need to do to resolve this error?

我需要做什么来解决这个错误？

采纳答案by chrylis -cautiouslyoptimistic-

You're wanting an EntityManagerinjected, but you don't have any injection annotations on the field, and "factory" is the wrong qualifier in any case. Annotate your field with @PersistenceContext, using unitNameif needed to distinguish between multiple persistence units.

您想要EntityManager注入，但您在该字段上没有任何注入注释，并且“工厂”在任何情况下都是错误的限定符。使用 注释您的字段@PersistenceContext，unitName如果需要使用以区分多个持久性单元。

Answer to edited question:Your XML file isn't getting included, because you start from the Applicationclass, and Spring just follows the @ComponentScanfrom there. Add this import to your Applicationclass (or any scanned @Configurationclass):

对已编辑问题的回答：您的 XML 文件未包含在内，因为您从Application课程开始，而 Spring 只是@ComponentScan从那里开始。将此导入添加到您的Application班级（或任何扫描的@Configuration班级）：

@ImportResource("classpath:spring-config.xml")

Alternately, you can migrate your XML configuration to the JavaConfig format, which Spring will component-scan.

或者，您可以将 XML 配置迁移到 JavaConfig 格式，Spring 将对其进行组件扫描。

回答by Leonard Brünings

Your problem is that your are using annotation configuration which already searches the classpath for annotated beans this tries to instantiate the UserDAObut your don't provide a EntityManagerFactory here.

您的问题是您正在使用注释配置，该配置已经在类路径中搜索带注释的 bean，这会尝试实例化UserDAO但您没有在此处提供 EntityManagerFactory。

You can combine the JavaConfig with the XML configuration via @ImportResource("classpath:spring-config.xml").

您可以通过 将 JavaConfig 与 XML 配置结合起来@ImportResource("classpath:spring-config.xml")。

@Configuration
@ComponentScan
@EnableAutoConfiguration
@ImportResource("classpath:spring-config.xml")
public class Application {

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

@Controller
public class GetController {
    @Autowired
    UserService userService;

    @RequestMapping(value = "/user", method = RequestMethod.GET)
    public @ResponseBody User getUser(@RequestParam(value="id", required=true) int id) {

        return userService.getUser(id);
    }
}

@Component
public class UserService {

    @Autowired
    private UserDAO UserDao;

    public User getUser(int id) {
        return getUserDao().load(id);
    }
}

Might I suggest using SpringDatafor the DAO you'll save much boilerplate code.

我是否建议将SpringData用于 DAO，您将节省大量样板代码。

回答by Dave Syer

Looking at the autoconfig report that came out of the crash I can see that there is no DataSourcedefined. Spring Boot will create one for you if you have the right stuff on your classpath - eg at a minimum to get something working include h2 or hsqldb on your classpath.

查看崩溃后的自动配置报告，我可以看到没有DataSource定义。如果您的类路径上有正确的东西，Spring Boot 将为您创建一个 - 例如，至少要让一些东西工作，包括类路径上的 h2 或 hsqldb。

Incidentally, the XML file is redundant if you use Spring Boot the right way.

顺便说一句，如果您以正确的方式使用 Spring Boot，则 XML 文件是多余的。