我创建了一个maven项目并通过pom.xml添加了Spring4,Hibernate4库我试图将我的web应用程序与我在PostgreSql中创建的数据库链接,但是当我在apache tomcat 7中发布我的项目时,会发生以下异常:
org.springframework.beans.factory.BeanCreationException:在ServletContext资源[/WEB-INF/applicationContext.xml]中定义名为'emf'的bean时出错:init方法的调用失败;嵌套异常是java.lang.IllegalArgumentException:在EntityManagerFactory配置中没有指定PersistenceProvider,并且选择的PersistenceUnitInfo没有在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)的org中指定提供者类名org.springframework.beans.factory.support上的.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) .AbstractBeanFactory $ 1.getObject(AbstractBeanFactory.java:304)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.suppo rt.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)atg.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:973)org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:750) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:306)位于org.apache的org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4994)的org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)。 catalina.core.StandardContext.startInternal(StandardContext.java:5492)位于org.apache.catal的org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ina.core.ContainerBase $ StartChild.call(ContainerBase.java:1575)atg.apache.catalina.core.ContainerBase $ StartChild.call(ContainerBase.java:1565)at java.util.concurrent.FutureTask.run(Unknown Source )java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)at java.util.concurrent.ThreadPoolExecutor $ Worker.run(Unknown Source)at java.lang.Thread.run(Unknown Source)引起:java.lang。 IllegalArgumentException:在EntityManagerFactory配置中未指定PersistenceProvider,并且选择的PersistenceUnitInfo未在org.springframework.orm.jpa.AbstractEntityManagerFactoryBean的org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:318)中指定提供程序类名。 orPro.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)中的afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318) t org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)... 21更多
这是我的applicationContext.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:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:tx="http://www.springframework.org/schema/tx"
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/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<context:component-scan base-package="com.medsoft.stadto">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://localhost:1993/Posts" />
<property name="username" value="postgres" />
<property name="password" value="123" />
</bean>
<bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="emf">
<property name="packagesToScan" value="com.medsoft.stadto.entity" />
<property name="dataSource" ref="dataSource" />
<property name="jpaProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2dll.auto">create</prop>
</props>
</property>
</bean>
<tx:annotation-driven transaction-manager="txManager" />
<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
更改emf
bean配置并添加一个名为jpaVendorAdapter
的新bean:
<bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="emf">
<property name="packagesToScan" value="com.medsoft.stadto.entity" />
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter"/>
<property name="persistenceUnitName" value="stadto"/>
<property name="jpaProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
</props>
</property>
</bean>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true"/>
<property name="generateDdl" value="true"/>
<property name="databasePlatform" value="org.hibernate.dialect.PostgreSQLDialect"/>
</bean>
还要确保你在persistence.xml
目录中有一个META-INF
:
<?xml version="1.0"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
<persistence-unit name="stadto">
//No need to specify the provider as we already have specified JPA vendor in applicationContext.xml
</persistence-unit>
</persistence>
当您没有为JPA配置JpaVendorImplementation时会发生这种情况。 JPA EntityManager的以下Java bean定义适用于我:
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(
DataSource dataSource) {
LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
emf.setDataSource(dataSource);
emf.setPackagesToScan(irdbConfig.getPathForPackagesToScan());
emf.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
emf.setJpaPropertyMap(irdbConfig.getAdditionalHibernateProperties());
return emf;
}
但是下面的一个会引发你收到的同样的异常:
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(
DataSource dataSource) {
LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
emf.setDataSource(dataSource);
emf.setPackagesToScan(irdbConfig.getPathForPackagesToScan());
return emf;
}
请注意从第二个代码中删除的行。