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POHow to integrate spring with hibernate session and transaction management?
 

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    <p>I am a beginner in both hibernate and spring. I have understood about the hibernate transaction demarcation (at least I think so). But after coding a few method like this:</p> <pre><code>sessionFactory.getCurrentSession().beginTransaction(); //do something here sessionFactory.getCurrentSession().endTransaction(); </code></pre> <p>I started to want to avoid it and want to have it automatically done outside my method such that I only write the "//do something here" part. I have read about the TransactionProxyFactoryBean and think that the xml configuration is very long and have to be repeated for EVERY classes I want to make transactional so if possible I want to avoid using it.</p> <p>I tried to use the @Transactional but it doesn't work at all. I have these lines in my applicationContext.xml</p> <pre><code>&lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="configLocation" value="classpath:hibernate.cfg.xml" /&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="sessionFactory" ref="sessionFactory" /&gt; &lt;/bean&gt; &lt;tx:annotation-driven transaction-manager="transactionManager" /&gt; </code></pre> <p>and I have already marked my service classes with @Transactional but I always get the "xxx is not valid without active transaction". Here is an example code that give me an error (run in unit test btw):</p> <pre><code>@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = { "classpath:applicationContext.xml" }) @TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true) public class UserServiceTest { @Resource private UserService userService; @Test public void testAddUser() { User us = new User(); us.setName("any name"); userService.addUser(us); } } </code></pre> <p>In this case, the exact error message is: "org.hibernate.HibernateException: save is not valid without active transaction".</p> <p><em>UPDATE</em>: I tried calling the userService.addUser() method from outside unit tests (i.e. from actual web application) and I got the same error as well.</p> <p>This is my hibernate.cfg.xml:</p> <pre><code>&lt;?xml version='1.0' encoding='utf-8'?&gt; &lt;!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"&gt; &lt;hibernate-configuration&gt; &lt;session-factory&gt; &lt;!-- JDBC connection pool (use the built-in) --&gt; &lt;property name="connection.pool_size"&gt;1&lt;/property&gt; &lt;!-- SQL dialect --&gt; &lt;property name="dialect"&gt;org.hibernate.dialect.MySQLDialect&lt;/property&gt; &lt;!-- Enable Hibernate's automatic session context management --&gt; &lt;property name="current_session_context_class"&gt;thread&lt;/property&gt; &lt;!-- Disable the second-level cache --&gt; &lt;property name="cache.provider_class"&gt;org.hibernate.cache.NoCacheProvider&lt;/property&gt; &lt;!-- Echo all executed SQL to stdout --&gt; &lt;property name="show_sql"&gt;true&lt;/property&gt; &lt;!-- Drop and re-create the database schema on startup --&gt; &lt;property name="hbm2ddl.auto"&gt;update&lt;/property&gt; &lt;!-- all my mapping resources here --&gt; &lt;/session-factory&gt; &lt;/hibernate-configuration&gt; </code></pre> <p>The userService class is marked with @Transactional. I am using hibernate 3.3.2 and spring 2.5.6.</p> <p>Can I have some advice on how to fix this?</p>
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