Spring数据jpa-未定义名为'entityManagerFactory'的bean。自动连接的依赖项注入失败

小编典典

Spring数据jpa-未定义名为'entityManagerFactory'的bean。自动连接的依赖项注入失败

spring-mvc

我正在使用spring数据jpa，hibernate，mysql，tomcat7，maven开发应用程序，并且创建错误。我试图弄清楚，但失败了。

错误是在设置构造函数参数时无法解析对bean’entityManagerFactory’的引用；没有定义名为“
entityManagerFactory”的bean；自动连接的依赖项注入失败

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'initDbService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.wahid.cse.repository.RoleRepository org.wahid.cse.service.InitDbService.roleRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'roleRepository': Cannot create inner bean '(inner bean)#c08f81' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#c08f81': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
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$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)


 Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.wahid.cse.repository.RoleRepository org.wahid.cse.service.InitDbService.roleRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'roleRepository': Cannot create inner bean '(inner bean)#c08f81' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#c08f81': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 22 more

 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'roleRepository': Cannot create inner bean '(inner bean)#c08f81' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#c08f81': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:290)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:129)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1456)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1197)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 24 more

这是我的ApplicationContext.xml文件

<?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:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

<context:component-scan base-package="org.wahid.cse">
    <context:exclude-filter type="annotation"
        expression="org.springframework.stereotype.Controller" />
</context:component-scan>

<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
    destroy-method="close">
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/jba" />
    <property name="username" value="root" />
    <property name="password" value="" />
</bean>
<bean id="emf"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="packagesToScan" value="org.wahid.cse.entity" />
    <property name="dataSource" ref="dataSource" />

    <property name="jpaProperties">
        <props>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">create</prop>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
        </props>
    </property>

    <property name="persistenceProvider">
        <bean class="org.hibernate.jpa.HibernatePersistenceProvider"></bean>
    </property>

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

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

这是pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.ferdous.wahid</groupId>
<artifactId>java-blog-aggregator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>


<!-- Shared version number properties -->
<properties>
    <org.springframework.version>4.0.5.RELEASE</org.springframework.version>
    <apache.tiles>3.0.4</apache.tiles>
    <servlet-api-version>3.1.0</servlet-api-version>

</properties>

<dependencies>

    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
        <version>2.0.1</version>
    </dependency>



    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.31</version>
    </dependency>



    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.6.1.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.3.5.Final</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>${servlet-api-version}</version>
        <scope>provided</scope>
    </dependency>


    <!-- <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> 
        <version>2.2.1</version> </dependency> -->

    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>


    <dependency>
        <groupId>org.apache.tiles</groupId>
        <artifactId>tiles-core</artifactId>
        <version>${apache.tiles}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.tiles</groupId>
        <artifactId>tiles-jsp</artifactId>
        <version>${apache.tiles}</version>
    </dependency>


    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.7</version>
    </dependency>


    <!-- Core utilities used by other modules. Define this if you use Spring 
        Utility APIs (org.springframework.core.*/org.springframework.util.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Expression Language (depends on spring-core) Define this if you use 
        Spring Expression APIs (org.springframework.expression.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Bean Factory and JavaBeans utilities (depends on spring-core) Define 
        this if you use Spring Bean APIs (org.springframework.beans.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Aspect Oriented Programming (AOP) Framework (depends on spring-core, 
        spring-beans) Define this if you use Spring AOP APIs (org.springframework.aop.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Application Context (depends on spring-core, spring-expression, spring-aop, 
        spring-beans) This is the central artifact for Spring's Dependency Injection 
        Container and is generally always defined -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Various Application Context utilities, including EhCache, JavaMail, 
        Quartz, and Freemarker integration Define this if you need any of these integrations -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Transaction Management Abstraction (depends on spring-core, spring-beans, 
        spring-aop, spring-context) Define this if you use Spring Transactions or 
        DAO Exception Hierarchy (org.springframework.transaction.*/org.springframework.dao.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- JDBC Data Access Library (depends on spring-core, spring-beans, spring-context, 
        spring-tx) Define this if you use Spring's JdbcTemplate API (org.springframework.jdbc.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Object-to-Relation-Mapping (ORM) integration with Hibernate, JPA, 
        and iBatis. (depends on spring-core, spring-beans, spring-context, spring-tx) 
        Define this if you need ORM (org.springframework.orm.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Object-to-XML Mapping (OXM) abstraction and integration with JAXB, 
        JiBX, Castor, XStream, and XML Beans. (depends on spring-core, spring-beans, 
        spring-context) Define this if you need OXM (org.springframework.oxm.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-oxm</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Web application development utilities applicable to both Servlet and 
        Portlet Environments (depends on spring-core, spring-beans, spring-context) 
        Define this if you use Spring MVC, or wish to use Struts, JSF, or another 
        web framework with Spring (org.springframework.web.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Spring MVC for Servlet Environments (depends on spring-core, spring-beans, 
        spring-context, spring-web) Define this if you use Spring MVC with a Servlet 
        Container such as Apache Tomcat (org.springframework.web.servlet.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Spring MVC for Portlet Environments (depends on spring-core, spring-beans, 
        spring-context, spring-web) Define this if you use Spring MVC with a Portlet 
        Container (org.springframework.web.portlet.*) -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc-portlet</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Support for testing Spring applications with tools such as JUnit and 
        TestNG This artifact is generally always defined with a 'test' scope for 
        the integration testing framework and unit testing stubs -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${org.springframework.version}</version>
        <scope>test</scope>
    </dependency>
</dependencies>
<build>
    <plugins>

        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <version>2.2</version>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>

    </plugins>
</build>

RoleRepository现为

import org.springframework.data.jpa.repository.JpaRepository;
import org.wahid.cse.entity.Role;

 public interface RoleRepository extends JpaRepository<Role, Integer>{

 }

阅读 349

2020-06-01

共1个答案

小编典典

默认情况下，Spring Data JPA查找名为的EntityManagerFactory
entityManagerFactory。查阅Javadoc 或Spring Data JPA
文档的这一部分。EnableJpaRepositories``Table 2.1

这意味着您要么必须将emfbean 重命名为，要么entityManagerFactory将Spring配置更改为：

<jpa:repositories base-package="your.package" entity-manager-factory-ref="emf" />

（如果您使用的是XML）

要么

@EnableJpaRepositories(basePackages="your.package", entityManagerFactoryRef="emf")

（如果您使用的是Java Config）

2020-06-01