我正在使用 Hibernate 4 + Spring MVC 4，当我启动 Apache Tomcat Server 8 时，出现以下错误：
Error creating bean with name 'welcome': Injection of autowired dependencies failed;
Could not autowire field: private dao.IRegion controller.welcome.regionI;
No qualifying bean of type [dao.IRegion] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
这是我的Hibernate配置文件，其中包含<property name="packagesToScan" value="dao" />：
<?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"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<context:property-placeholder location="persistence-mysql.properties" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="dao" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
</props>
</property>
</bean>
<!-- <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> -->
<bean id="dataSource" class="org.apache.tomcat.dbcp.dbcp2.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.pass}" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="persistenceExceptionTranslationPostProcessor" class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
</beans>
dao 是我放置 dao 和接口的包。
我的区域接口 dao.IRegion ：
public interface IRegion<T extends Serializable> {
List<T> findAll();
}
我的区域数据访问对象 dao.RegionDAO
@Repository
public class RegionDAO implements IRegion < Region > {
@Autowired
private SessionFactory sessionFactory;
@Override
public List<Region> findAll() {
return sessionFactory.getCurrentSession().createQuery("from Region").list();
}
}
我的控制器
@Controller
public class welcome {
@Autowired
private IRegion<Region> regionI;
....
}
我的Servlet调度程序
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<mvc:default-servlet-handler />
<context:component-scan base-package="controller"/>
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
regionI的 Bean 入口在哪里？ - Amogh