java.lang.IllegalArgumentException: No PersistenceProvider specificata nella configurazione EntityManagerFactory

Question

ho creato un progetto Maven e ha aggiunto Spring4, Hibernate4 librerie attraverso pom.xml io sto cercando di collegare il mio web app con il mio database creato in PostgreSql , ma quando pubblico il mio progetto in tomcat apache 7 la seguente eccezione si verifica:

org.springframework.beans.factory.BeanCreationException: Errore la creazione di fagioli con nome 'fem' definito nella risorsa ServletContext [/WEB-INF/applicationContext.xml]: invocazione del metodo init fallita; eccezione annidata è java.lang.IllegalArgumentException: No PersistenceProvider specificato nella configurazione EntityManagerFactory, e scelto PersistenceUnitInfo non specifica un nome di classe fornitore sia a org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean (AbstractAutowireCapableBeanFactory.java : 1553) a org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:539) a org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:475) a org.springframework.be ans.factory.support.AbstractBeanFactory $ 1.getObject (AbstractBeanFactory.java:304) a org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:228) a org.springframework.beans.factory .support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:300) a org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:195) a org.springframework.context.support.AbstractApplicationContext.getBean (AbstractApplicationContext.java:973) a org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:750).515.053.691,36321 milioni a org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:482) a org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:403) a org.springframework.web .context.ContextLoader.initWebApplicationContext (ContextLoader.java:306) a org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:106) a org.apache.catalina.core.StandardContext.listenerStart (StandardContext .java: 4994) allo org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5492) a org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150) a org.apache.catalina.core.ContainerBase $ StartChild.call (ContainerBase.java:1575) a org.apache .catalina.core.ContainerBase $ StartChild.call (ContainerBase.java:1565) a java.util.concurrent.FutureTask.run (sorgente sconosciuta) a java.util.concurrent.ThreadPoolExecutor.runWorker (sorgente sconosciuta) a java .util.concurrent.ThreadPoolExecutor $ Worker.run (Fonte sconosciuta) a java.lang.Thread.run (sorgente sconosciuta) Causato da: java.lang.IllegalArgumentException: No PersistenceProvider specificato in configurazione EntityManagerFactory, e scelto PersistenceUnitInfo non specifica un nome di classe fornitore sia a org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory (LocalContainerEntityManagerFactoryBean.java:318) a org.springframework.orm .jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet (AbstractEntityManagerFactoryBean.java:318) a org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods (AbstractAutowireCapableBeanFactory.java:1612) a org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory .initializeBean (AbstractAutowire CapableBeanFactory.java:1549) ... more 21

ecco la mia 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> 

Answer 1

Modificare la configurazione di fagioli emf e aggiungere un nuovo bean chiamato jpaVendorAdapter:

<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> 

Assicurati inoltre di avere un persistence.xml nella directory 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>