Spring + Hibernate : No Session found for current thread

Integrates Spring 3 and Hibernate 4, the system shows the following message while performing database operation :

org.hibernate.HibernateException: No Session found for current thread

The sessionFactory is injected like this :

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">

		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost:3306/test" />
		<property name="username" value="root" />
		<property name="password" value="password" />
	</bean>

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="mappingResources">
			<list>
				<value>orm/Users.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<value>
				hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
			</value>
		</property>
	</bean>

	<bean id="userDao" class="com.mkyong.users.dao.UserDaoImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="userService" class="com.mkyong.users.service.UserServiceImpl">
		<property name="userDao" ref="userDao" />
	</bean>

</beans>

Solution

The sessionFactory needs transaction to work, to solve it, declare a transaction manager in Spring.

Solution 1 : Declarative transaction management, declare transaction manager in an XML file, via Spring AOP.

<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:tx="http://www.springframework.org/schema/tx"
	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/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">

		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost:3306/test" />
		<property name="username" value="root" />
		<property name="password" value="password" />
	</bean>

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="mappingResources">
			<list>
				<value>orm/Users.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<value>
				hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
			</value>
		</property>
	</bean>

	<bean id="userDao" class="com.mkyong.users.dao.UserDaoImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="userService" class="com.mkyong.users.service.UserServiceImpl">
		<property name="userDao" ref="userDao" />
	</bean>
	
	<bean id="txManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>

	<tx:advice id="txAdvice" transaction-manager="txManager">
		<tx:attributes>
			<tx:method name="find*" read-only="true" />
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>

	<aop:config>
		<aop:pointcut id="userServicePointCut"
			expression="execution(* com.mkyong.users.service.*Service.*(..))" />
		<aop:advisor advice-ref="txAdvice" pointcut-ref="userServicePointCut" />
	</aop:config>
 
</beans>

Solution 2 : Programmatic transaction management, declare transaction manager in code.

package com.mkyong.users.service;

//...
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;

public class UserServiceImpl implements UserService {

  private UserDao userDao;

  private TransactionTemplate transactionTemplate;

  public void setTransactionManager(PlatformTransactionManager transactionManager) {
	this.transactionTemplate = new TransactionTemplate(transactionManager);
  }

  @Override
  public UserDetails findByUsername(final String username) {

	// Programmatic transaction management
	return transactionTemplate.execute(new TransactionCallback<UserDetails>() {

	  public UserDetails doInTransaction(TransactionStatus status) {
	          
                UserDetails user = userDao.findByUserName(username);
                //etc etc

	  }

	});

  }