Java 创建名为“entityManagerFactory”的 bean 时出错
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Error creating bean with name 'entityManagerFactory
提问by Josef
I am trying to run a dbtest but I get the following error :
我正在尝试运行 dbtest，但出现以下错误：
"Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [root-context.xml]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError: org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;"
“由以下原因引起：org.springframework.beans.factory.BeanCreationException：在类路径资源[root-context.xml]中定义名称为'entityManagerFactory'的bean创建错误：init方法调用失败；嵌套异常是java.lang.AbstractMethodError： org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;"
And because of that I also get the following error:
正因为如此，我还收到以下错误：
"Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personRepository' defined in class path resource [root-context.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [root-context.xml]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError: org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
“引起：org.springframework.beans.factory.BeanCreationException：在类路径资源[root-context.xml]中定义名称为'personRepository'的bean创建错误：bean初始化失败；嵌套异常是org.springframework.beans.factory .BeanCreationException：在类路径资源 [root-context.xml] 中定义名称为“entityManagerFactory”的 bean 创建错误：init 方法调用失败；嵌套异常为 java.lang.AbstractMethodError：org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo .getValidationMode()Ljavax/persistence/ValidationMode;
So we have to take alook at my root-context file and it look the following :
所以我们必须看看我的根上下文文件，它看起来如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Root Context: defines shared resources visible to all other web components
<bean id="personService" class="se.lowdin.civilforsvaret.webapp.services.PersonServiceImpl" />
-->
<bean id="personRepository" class="se.lowdin.civilforsvaret.webapp.repositories.PersonRepositoryJpa" />
<!-- Database -->
<bean id="datasource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/civilforsvaret11" />
<property name="username" value="bla" />
<property name="password" value="bla" />
</bean>
<!-- Entity Manager -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="datasource" />
<property name="persistenceUnitName" value="civilforsvaret" />
</bean>
<!-- Transaction Manager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
</beans>
And the persisence.xmllooks the following :
而且persisence.xml看起来如下：
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="civilforsvaret" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="hibernate.show_sql" value="true"/>
</properties>
</persistence-unit>
</persistence>
And this is my pom.xml file :
这是我的 pom.xml 文件：
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>se.lowdin</groupId>
<artifactId>civilforsvaret</artifactId>
<name>civilforsvaret-webbapp</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.1.1.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<!-- MySql connection -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.24</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<!-- @Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.easymock</groupId>
<artifactId>easymock</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.0.CR1</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.3.174</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jpa</artifactId>
<version>2.0.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.4.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
I am a complete noob with Spring MVC and cant find the problem.
我是 Spring MVC 的完全菜鸟，但找不到问题所在。
回答by Sean Patrick Floyd
This sounds like a ClassLoader conflict. I'd bet you have the javax.persistence api 1.x on the classpath somewhere, whereas Spring is trying to access ValidationMode, which was only introduced in JPA 2.0.
这听起来像是 ClassLoader 冲突。我敢打赌你在类路径上的某个地方有 javax.persistence api 1.x，而 Spring 试图访问ValidationMode，它只在 JPA 2.0 中引入。
Since you use Maven, do mvn dependency:tree, find the artifact:
由于您使用Maven，请执行mvn dependency:tree，找到工件：
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
</dependency>
And remove it from your setup. (See Excluding Dependencies)
并将其从您的设置中删除。（请参阅排除依赖项）
AFAIK there is no such general distribution for JPA 2, but you can use this Hibernate-specific version:
AFAIK JPA 2 没有这样的通用发行版，但您可以使用此特定于 Hibernate 的版本：
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
OK, since that doesn't work, you still seem to have some JPA-1 version in there somewhere. In a test method, add this code:
好的，既然这不起作用，您似乎仍然在某个地方有一些 JPA-1 版本。在测试方法中，添加以下代码：
System.out.println(EntityManager.class.getProtectionDomain()
.getCodeSource()
.getLocation());
See where that points you and get rid of that artifact.
看看它指向你的位置并摆脱那个工件。
Ahh, now I finally see the problem. Get rid of this:
啊，现在我终于看到问题了。摆脱这个：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jpa</artifactId>
<version>2.0.8</version>
</dependency>
and replace it with
并将其替换为
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
On a different note, you should set all test libraries (spring-test, easymock etc.) to
另一方面，您应该将所有测试库（spring-test、easymock 等）设置为
<scope>test</scope>
回答by JAD
Adding dependencies didn't fix the issue at my end.
添加依赖项并没有解决我最后的问题。
The issue was happening at my end because of "additional" fields that are part of the "@Entity" class and don't exist in the database.
这个问题发生在我的最后，因为“附加”字段是“@Entity”类的一部分并且不存在于数据库中。
I removed the additional fields from the @Entity class and it worked.
我从@Entity 类中删除了其他字段，它起作用了。
