我第一次使用function SetPortfolioItems(filter) {
var str = filter.toLowerCase();
var invalidItems = $( ".portfolio-item:not(."+str+")");
invalidItems.hide("slow");
var validItems = $( ".portfolio-item." + str );
validItems.show("slow");
}
SetPortfolioItems('filter');
。是否可以使用<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="portfolio-item">item 1</div>
<div class="portfolio-item filter">item 2</div>
<div class="portfolio-item">item 3</div>
<div class="portfolio-item filter">item 4</div>
<div class="portfolio-item">item 5</div>
<div class="portfolio-item">item 6</div>
来创建类似于hibernate会话的内容?
我熟悉从Spring
和JPA中的LocalContainerEntityManagerFactoryBean
创建一个休眠会话。
但是如何使用hibernate.cfg.xml
才能对我的数据库进行交易呢?
答案 0 :(得分:1)
您必须定义将配置到LocalContainerEntityManagerFactoryBean的jpa事务管理器,例如:
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="enginePU" />
<property name="dataSource" ref="dataSource" />
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">none</prop>
<prop key="hibernate.default_schema">dbo</prop>
<prop key="hibernate.default_catalog">ab</prop>
</props>
</property>
</bean>
然后,如果您将事务配置为注释驱动:
<tx:annotation-driven />
你可以在你的daos中使用entityManager:
@PersistenceContext
protected EntityManager entityManager;
@Override
@Transactional(propagation = Propagation.REQUIRED)
public void persist(Object o) throws IOException {
entityManager.persist(o);
}
希望它有所帮助。