EntityManagerFactory.createEntityManager(); EntityManagerFactory.createEntityManager(java.util.Map map); EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory("jpaUnit"); EntityManager em = emf.createEntityManager(); <beans> <bean id="myEmf" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> <property name="persistenceUnitName" value="myPersistenceUnit"/> </bean> </beans> [http://www.cnblogs.com/beiyeren/archive/2013/01/23/2873210.html][1]