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POspring jpa hibernate writing to the DB fails - no transaction
 

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  1. POspring jpa hibernate writing to the DB fails - no transaction
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    <p>i have the following problem. I use Spring and JPA (Hibernate) to persist Data in a Database. <br/> But i have an Error during saving the Data. My Database keeps empty after I create a new User. Here are the important files:</p> <pre><code>UserDao Interface: import java.util.List; public interface UserDao { public User findById(Integer id); public List&lt;User&gt; findAll(); public User findByEmail(String email); public void save(User user); } </code></pre> <p>UserDaoImpl:</p> <pre><code>@Repository public class UserDaoImpl implements UserDao { @PersistenceContext private EntityManager em; @Override public User findById(Integer id) { return em.find(User.class, id); } @SuppressWarnings("unchecked") @Override public List&lt;User&gt; findAll() { return (List&lt;User&gt;)em.createQuery("from User u").getResultList(); } @Override public User findByEmail(String email) { User user = null; try { user =  (User)em.createQuery("from User u where u.email = ?1").setParameter(1, email).getSingleResult(); } catch(NoResultException e){} return user; } @Override @Transactional public void save(User user) { em.persist(user); } } </code></pre> <p>Context.xml</p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd" default-autowire="byName"&gt; &lt;context:component-scan base-package="de.bht.swp.lao.ocp" /&gt; &lt;context:annotation-config /&gt; &lt;bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"&gt; &lt;property name="username" value="root" /&gt; &lt;property name="password" value="root" /&gt; &lt;property name="driverClassName" value="com.mysql.jdbc.Driver" /&gt; &lt;property name="url" value="jdbc:mysql://localhost/ocp" /&gt; &lt;/bean&gt; &lt;bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"&gt; &lt;property name="persistenceUnitName" value="ocpPU" /&gt; &lt;property name="dataSource" ref="dataSource"/&gt; &lt;property name="jpaVendorAdapter"&gt; &lt;bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"&gt; &lt;property name="showSql" value="true" /&gt; &lt;property name="generateDdl" value="true" /&gt; &lt;property name="databasePlatform" value="org.hibernate.dialect.MySQL5InnoDBDialect" /&gt; &lt;/bean&gt; &lt;/property&gt; &lt;property name="loadTimeWeaver" ref="loadTimeWeaver"&gt;&lt;/property&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" &gt; &lt;property name="entityManagerFactory" ref="entityManagerFactory" /&gt; &lt;/bean&gt; &lt;tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/&gt; &lt;context:load-time-weaver weaver- class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/&gt; &lt;/beans&gt; </code></pre> <p>persistence.xml</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;persistence version="1.0" 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"&gt; &lt;persistence-unit name="ocpPU"&gt; &lt;/persistence-unit&gt; </code></pre> <p></p> <p>When i create a new User i get the following Errorlog:</p> <pre><code>14:42:05,703 DEBUG [org.hibernate.event.def.AbstractSaveEventListener] - delaying identity-insert due to no transaction in progress 14:42:05,704 DEBUG [org.springframework.orm.jpa.EntityManagerFactoryUtils] - Closing JPA EntityManager 14:42:05,707 DEBUG [org.springframework.web.servlet.DispatcherServlet] - Rendering view  [org.springframework.web.servlet.view.RedirectView: unnamed; URL [/user/login.htm]] in   DispatcherServlet with name 'dispatcher' 14:42:05,708 DEBUG [org.springframework.web.servlet.DispatcherServlet] - Successfully completed request </code></pre> <p>I think its a Trancation Error. I´v already spent so much time in other channels. What means "delaying identity-insert due to no transaction in progress"?</p> <p>thanks for the help beforehand greeting</p>
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