- Java 声明接口定义：
public interface ShopOperatorSearchDao {
@DAOAction (action = DAOActionType.QUERY, method = "selectParentCategory")
public List<Integer> selectParentCategory(@DAOParam ("shopID") int shopID);
}
<bean id="shopOperatorSearchDAO" parent="parentDao ">
<property name="proxyInterfaces" value="com.dianping.shop.operator.dao.ShopOperatorSearchDao "></property>
<property name="target">
<bean parent="Main.daoRealizeTarget ">
<constructor-arg value="ShopSearch "></constructor-arg>
</bean>
</property>
</bean>
<bean id="parentDao " class="org.springframework.aop.framework.ProxyFactoryBean " abstract="true">
<property name="interceptorNames">
<list>
<value>daoAutoRealizerAdvisor </value>
</list>
</property>
</bean>
<bean id="Main.daoRealizeTarget " class="com.dianping.avatar.dao.ibatis.IBatisGenericDaoImpl " abstract="true">
<property name="sqlMapClient" ref="Main.sqlMapClient" />
</bean>
<bean id="Main.sqlMapClient" class="com.dianping.avatar.dao.ibatis.spring.LimitSqlMapClientFactoryBean">
<property name="dataSource" ref="Main.dataSource" />
<property name="configLocation" value="classpath:/config/sqlmap/main/sqlmap-config.xml" />
<property name="sqlConvert" ref="mysqlConverter" />
</bean>
<!-- The introduce interceptor for all Dao -->
<bean id="daoAutoRealizer" class="com.dianping.avatar.dao.DAOAutoRealizer " />
<!-- The advisor for inject interceptor -->
<bean id="daoAutoRealizerAdvisor" class="org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor">
<property name="advice" ref="daoAutoRealizer" />
<property name="expression" value="execution(* com.dianping..dao..*.*(..)) and !execution(* com.dianping.avatar..dao..*.*(..))" />
</bean>
- spring的使用：注入与new
spring：最大特点就是注入。
在有spring存在的项目中，spring 的注入要统一使用，类的一步一步引用，要么为全部注入，要么都不注入。否则会出错。
比如：一个类A没有使用注入，只是用new创建了一个实例化的类B的对象。则在B类中不能使用注入。否则会出错。因为被new实例化的类和spring实例化的类是不同的，在被new实例化的对象中被注入的内容为空。