Problem with LAB-4941: Spring Database Access

[Karl Fischer W.]

Sang, i have problems to complete the homework. After doing the changes to the code and run the Main.java, STS show me the following error:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/applicationContext-hibernate.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'default' found

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:540)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)

at com.javapassion.examples.student.Main.main(Main.java:15)

Caused by: java.lang.IllegalArgumentException: No persistence unit with name 'default' found

at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.obtainPersistenceUnitInfo(DefaultPersistenceUnitManager.java:685)

at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.obtainDefaultPersistenceUnitInfo(DefaultPersistenceUnitManager.java:673)

at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.determinePersistenceUnitInfo(LocalContainerEntityManagerFactoryBean.java:363)

at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:312)

at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1627)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564)

... 12 more

applicationContext-hibernate.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:p = "http://www.springframework.org/schema/p"

    xmlns:aop = "http://www.springframework.org/schema/aop"

    xmlns:context = "http://www.springframework.org/schema/context" 

    xmlns:tx = "http://www.springframework.org/schema/tx"

    xsi:schemaLocation = "

        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.xsd

        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd

    "

>

    <!-- ========================= RESOURCE DEFINITIONS ========================= -->

    <!-- import the dataSource definition -->

    <import resource = "applicationContext-dataSource.xml" />

<!-- Configurer that replaces ${...} placeholders with values from a properties file -->

    <!-- (in this case, Hibernate-related settings for the sessionFactory definition below) -->

    <context:property-placeholder location = "classpath:jdbc.properties" />

  <!-- JPA EntityManagerFactory -->

<bean 

        id = "entityManagerFactory"

class = "org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"

    >

<property name = "dataSource" ref = "dataSource" />

<property name = "jpaVendorAdapter">

            <!-- Use Hibernate as JPA engine -->

<bean 

                class       = "org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"

p:database = "${jpa.database}"

            />

        </property>

        <property name = "jpaProperties">

            <props>

                <prop key = "hibernate.dialect">${hibernate.dialect}</prop>

                <prop key = "hibernate.generate_statistics">${hibernate.generate_statistics}</prop>

                <prop key = "hibernate.show_sql">${hibernate.show_sql}</prop>

                <prop key = "hibernate.format_sql">${hibernate.format_sql}</prop>

                <prop key = "hibernate.use_sql_comments">${hibernate.use_sql_comments}</prop>

            </props>

        </property>

<property name = "persistenceXmlLocation" value = "classpath:META-INF/persistence.xml" />

</bean>

    

<!-- Transaction manager for a single JPA EntityManagerFactory (alternative to JTA) -->

<bean 

        id = "transactionManager" 

        class = "org.springframework.orm.jpa.JpaTransactionManager"

p:entityManagerFactory-ref = "entityManagerFactory" 

    />

    <!-- ========================= BUSINESS OBJECT DEFINITION ========================= -->

    <!-- 

       Scan the classpath for annotated components that will be auto-registered 

        as Spring beans. 

        By default, the Spring-provided @Component, @Repository, 

        @Service, and @Controller stereotypes will be detected. 

    -->

    <context:component-scan base-package = "com.javapassion.examples.student.dao" />

    <!-- 

        Activates various annotations to be detected in bean classes: Spring's 

        @Required and @Autowired, as well as JSR 250's @Resource. 

    -->

    <context:annotation-config />

    <!-- 

        Instruct Spring to perform declarative transaction management automatically 

        on annotated classes. 

    -->

    <tx:annotation-driven />

</beans>

persistence.xml

<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 = "student" />

<persistence-unit name = "teacher" />

</persistence>

What i'm missing? i check all the files and project properties and the error persist.

I posible to modify the example "database_jpa_hibernate_engine" better than  the database_hibernate_annotation_HibernateTemplate ???

Thank's

Karl

[Sang Shin]

On 1/22/2015 8:54 AM, Karl Fischer W. wrote:

Sang, i have problems to complete the homework. After doing the changes to the code and run the Main.java, STS show me the following error:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [spring/applicationContext-hibernate.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'default' found

The above indicates it cannot find the persistence unit (persistence.xml).
Can you make sure you have persistence.xml in the following directory

    src/main/resources/META-INF/persistence.xml

-Sang

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[Karl Fischer W.]

Yes, the file is in the META-INF directory

...

[Sang Shin]

On 1/22/2015 1:58 PM, Karl Fischer W. wrote:

Yes, the file is in the META-INF directory

It is hard to tell what went wrong from this error unfortunately.
I would suggest to follow how the "database_jpa_hibernate_engine"
project is done as closely as possible.

-S

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