Entity manager does not persist data in the DB - spring

Question

Trough the entity manager I'm tryng to persist the entity in the database but I don manage to persists it. Here goes my configuration.
I have this Entity:
#Entity
#Table(name = "User")
public class UserModel implements Serializable, ModelItem {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
#Column(nullable = false)
private String username;
#Column(nullable = false)
private String password;
#Column(nullable = false)
private String name;
private String surname;
private String notes;
private String cellphone;
#Column(nullable = false)
private String email;
private Boolean enabled;
//get and set methods
.....
}
and my import bean that does the persistence:
#Repository
public class ImportServiceImpl implements ImportService {
#PersistenceContext
protected EntityManager entityManager;
#Transactional
public boolean importExample() {
User u= new User();
u.setUsername("username");
u.setPassword("password");
u.setName("name");
u.setEmail("email");
entityManager.persist(u);
}
}
The spring configuration for the entity manager and the db connction:
<tx:annotation-driven transaction-manager="transactionManager" />
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<tx:annotation-driven />
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" /> <!-- Prints used SQL to stdout -->
<property name="generateDdl" value="true" /> <!-- Generates tables. -->
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
</bean>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url">
<value>${db.url}</value>
</property>
<property name="username">
<value>${db.username}</value>
</property>
<property name="password">
<value>${db.password}</value>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="dataSource" ref="dataSource"/>
</bean>
and my persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<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_1_0.xsd"
version="1.0">
<persistence-unit name="application" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/testdata"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.password" value="password"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
</properties>
</persistence-unit>
</persistence>
So when I run my example I don't get any error but entity is not persisted. I also tryied to add entityManager.flush() after persist but in this case i get this error:
javax.persistence.TransactionRequiredException: no transaction is in progress
at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:793)
So I'm thinking my Transactional bean is not well binded to the method, but I can not understand the reason. Somebody knows why?
I also noticed in STS that for this transaction are generated 2 beans with same data it looks strange (I don't know if it is a bug of STS or is a problem in my configuration that creates 2 beans):

Answer 1

I've faced an issue similar to the one described.
I found the problem in incorrect usage of #Transactional notation, in particular I've wrongly used javax.transaction.Transactional instead of org.springframework.transaction.annotation.Transactional
A detailed description of the difference can be found here at javax.transaction.Transactional vs org.springframework.transaction.annotation.Transactional

Answer 2

Maybe try specifying the persistence unit name "application" in your #PersistenceContext annotation?
#PersistenceContext(unitname = "application")

Answer 3

I also faced the same issue, as Repoker said Persistence provider is ok but my transaction manager was screwed. I added transactionManager bean in my application-config.xml like this
<bean id="transactionManager" cass="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="myEntityManagerFactory" />
</bean>
and It works fine now!!

Answer 4

you can use entityManager.flush() just after persist and merge it could solve your problem

Answer 5

You have <tx:annotation-driven /> twice in your context config. I'm not sure that is a legal config.

Answer 6

I had a similar issue where #Transactional didn't persist entity in the DB using EntityManager. To solve this problem we can commit the transaction manually.
entityManager.getTransaction().begin();
entityManager.persist(post);
entityManager.getTransaction().commit();