我得到了这个例外,我无法弄清楚原因。 CheckoutItem
和接口CheckoutItemDAO
位于一个单独的jar中,并且是没有任何注释的简单javabeans。 CheckoutItemDAOHibernate
实施CheckoutItemDAO
16:26:31,135 ERROR [ContextLoader:227] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'checkoutService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.newscom.dao.CheckoutItemDAO com.liferay.webform.business.CheckoutService.checkoutItemDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'checkoutItemDAO' defined in ServletContext resource [/WEB-INF/context/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/context/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.IncompatibleClassChangeError: Implementing class
CheckoutService.java
package com.liferay.webform.business;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.newscom.dao.CheckoutItemDAO;
import com.newscom.model.CheckoutItem;
@Service
@Transactional
@Controller
public class CheckoutService {
@Autowired private CheckoutItemDAO checkoutItemDAO;
public CheckoutItem getCheckoutItemById(Integer checkoutItemId) {
List<CheckoutItem> items = checkoutItemDAO.retrieveRecordByID(checkoutItemId);
if (items != null && items.size() > 0) {
return items.get(0);
}
else {
return null;
}
}
的applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<context:component-scan base-package="com.liferay.webform.business" />
<tx:annotation-driven/>
<util:properties id="applicationProperties" location="classpath:application.properties"/>
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="java:comp/env/jdbc/ncdb"></property>
</bean>
<!-- Hibernate SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.newscom.model.CheckoutItem</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</prop>
<prop key="hibernate.cache.use_second_level_cache">false</prop>
<prop key="hibernate.cache.use_query_cache">false</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.cglib.use_reflection_optimizer">false</prop>
<prop key="hibernate.bytecode.use_reflection_optimizer">false</prop>
<prop key="hibernate.connection.release_mode">auto</prop>
<prop key="hibernate.query.substitutions">true 1, false 0</prop>
</props>
</property>
</bean>
<bean id="daoTemplate" abstract="true">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean parent="daoTemplate" id="checkoutItemDAO" class="com.newscom.dao.hibernate.CheckoutItemDAOHibernate" />
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>