I'm developing application using spring data jpa,hibernate,mysql,tomcat7,maven and it's create error.I'm trying to figure it out but i failed.
我正在开发应用程序，使用spring数据jpa、hibernate、mysql、tomcat7、maven，并创建错误。我想弄明白，但我失败了。
error are Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; No bean named 'entityManagerFactory' is defined; Injection of autowired dependencies failed
在设置构造函数参数时，错误不能解决bean的entityManagerFactory的引用;没有定义bean的“entityManagerFactory”;自动连接依赖项的注入失败。
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
here is my ApplicationContext.xml file
<?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>
Here is 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 is
RoleRepository是
import org.springframework.data.jpa.repository.JpaRepository;
import org.wahid.cse.entity.Role;
public interface RoleRepository extends JpaRepository<Role, Integer>{
}
3 个解决方案
#1
59
Spring Data JPA by default looks for an EntityManagerFactory named entityManagerFactory. Check out this part of the Javadoc of EnableJpaRepositories or Table 2.1 of the Spring Data JPA documentation.
默认情况下，Spring Data JPA将寻找一个名为EntityManagerFactory的EntityManagerFactory。请查看Spring数据JPA文档中的EnableJpaRepositories或表2.1 Javadoc的这一部分。
That means that you either have to rename your emf bean to entityManagerFactory or change your Spring configuration to:
这意味着您要么必须将emf bean重命名为entityManagerFactory，要么将Spring配置更改为:
<jpa:repositories base-package="your.package" entity-manager-factory-ref="emf" />
(if you are using XML)
(如果您使用的是XML)
or
或
@EnableJpaRepositories(basePackages="your.package", entityManagerFactoryRef="emf")
@EnableJpaRepositories(basePackages =“你。包”,entityManagerFactoryRef =“电动势”)
(if you are using Java Config)
(如果您使用的是Java配置)
#2
8
In your application context, change the bean with id from emf to entityManagerFactory:
在应用程序上下文中，将id从emf更改为entityManagerFactory:
<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>
To
来
<bean id="entityManagerFactory"
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>
#3
-1
Changing bean id from "emf" to "entityManagerFactory" will solve the issue because Spring Data JPA looks for Bean named 'entityManagerFactory' by default.
将bean id从“emf”更改为“entityManagerFactory”将解决这个问题，因为Spring Data JPA在默认情况下查找bean的名称“entityManagerFactory”。
But if you really want to bind any NON-DEFAULT named bean as the entity manager factor, answer given by 'geoand' is the exact way with which you should change the things.
但是如果您真的想将任何非默认的bean绑定为实体管理器因子，那么“geoand”给出的答案是您应该更改这些内容的正确方法。
Hope it help to clear the understanding as you have already resolved the issue :-)
希望它能帮助你理清思路，因为你已经解决了这个问题:-)
#1
59
Spring Data JPA by default looks for an EntityManagerFactory named entityManagerFactory. Check out this part of the Javadoc of EnableJpaRepositories or Table 2.1 of the Spring Data JPA documentation.
默认情况下，Spring Data JPA将寻找一个名为EntityManagerFactory的EntityManagerFactory。请查看Spring数据JPA文档中的EnableJpaRepositories或表2.1 Javadoc的这一部分。
That means that you either have to rename your emf bean to entityManagerFactory or change your Spring configuration to:
这意味着您要么必须将emf bean重命名为entityManagerFactory，要么将Spring配置更改为:
<jpa:repositories base-package="your.package" entity-manager-factory-ref="emf" />
(if you are using XML)
(如果您使用的是XML)
or
或
@EnableJpaRepositories(basePackages="your.package", entityManagerFactoryRef="emf")
@EnableJpaRepositories(basePackages =“你。包”,entityManagerFactoryRef =“电动势”)
(if you are using Java Config)
(如果您使用的是Java配置)
#2
8
In your application context, change the bean with id from emf to entityManagerFactory:
在应用程序上下文中，将id从emf更改为entityManagerFactory:
<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>
To
来
<bean id="entityManagerFactory"
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>
#3
-1
Changing bean id from "emf" to "entityManagerFactory" will solve the issue because Spring Data JPA looks for Bean named 'entityManagerFactory' by default.
将bean id从“emf”更改为“entityManagerFactory”将解决这个问题，因为Spring Data JPA在默认情况下查找bean的名称“entityManagerFactory”。
But if you really want to bind any NON-DEFAULT named bean as the entity manager factor, answer given by 'geoand' is the exact way with which you should change the things.
但是如果您真的想将任何非默认的bean绑定为实体管理器因子，那么“geoand”给出的答案是您应该更改这些内容的正确方法。
Hope it help to clear the understanding as you have already resolved the issue :-)
希望它能帮助你理清思路，因为你已经解决了这个问题:-)