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POProper way to autowire a Hibernate Session in a Spring Transaction JUnit test
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  1. POProper way to autowire a Hibernate Session in a Spring Transaction JUnit test
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    copied!<p>This question is similar to a previous <a href="https://stackoverflow.com/questions/734614/spring-hibernate-junit-no-hibernate-session-bound-to-thread">one</a>. I am trying to <code>@Autowire</code> a Hibernate Session in one of my Spring-JUnit-Transactional tests but I am getting this exception:</p> <p><code>java.lang.IllegalStateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional ...</code></p> <p>Here is my JUnit class:</p> <pre><code>@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"/applicationContext.xml"}) @TransactionConfiguration(transactionManager="transactionManager") @Transactional public class MyTest { @Qualifier("session") @Autowired private Session session; @Test public void testSomething() { session.get(User.class, "me@here.com"); } } </code></pre> <p>Every works fine if I <code>@Autowire</code> a <code>SessionFactory</code> and get my <code>Session</code> programmatically (instead of defining it in the Spring XML) like so:</p> <pre><code>@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"/applicationContext.xml"}) @TransactionConfiguration(transactionManager="transactionManager") @Transactional public class MyTest{ @Qualifier("sessionFactory") @Autowired private SessionFactory sessionFactory; @Test public void testSomething() { Session session = SessionFactoryUtils.getSession(sessionFactory, false); session.get(User.class, "me@here.com"); } } </code></pre> <p>I can, however, get my original example to work if I define my <code>Session</code> in my Spring XML with <code>&lt;aop:scoped-proxy /&gt;</code> like so:</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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd "&gt; &lt;bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"&gt; ... &lt;/bean&gt; &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="configLocation"&gt;&lt;value&gt;classpath:/hibernate.cfg.xml&lt;/value&gt;&lt;/property&gt; &lt;property name="configurationClass"&gt; &lt;value&gt;org.hibernate.cfg.AnnotationConfiguration&lt;/value&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"&gt; &lt;property name="sessionFactory" ref="sessionFactory"/&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;/bean&gt; &lt;tx:annotation-driven transaction-manager="transactionManager"/&gt; &lt;bean id="session" class="org.springframework.orm.hibernate3.SessionFactoryUtils" factory-method="getSession" scope="prototype"&gt; &lt;constructor-arg ref="sessionFactory" /&gt; &lt;constructor-arg value="false" /&gt; &lt;!-- This is seems to be needed to get rid of the 'No Hibernate Session' error' --&gt; &lt;aop:scoped-proxy /&gt; &lt;/bean&gt; &lt;/beans&gt; </code></pre> <p>My question is: Why is <code>&lt;aop:scoped-proxy /&gt;</code> needed given that there should only one thread-bounded transaction context in my unit test? What <strong>is</strong> the proper way to define my <code>Hibernate Session</code> bean?</p>
 

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