关于SPRING注入问题

[q2a3z4w]

在SPRING中，有两个BEAN 一个抽象类 一个子类，
如果想在抽象类中注入子类，如何实现？
下面这种方式会报错：

<!-- 抽象类 -->
<bean id ="abstractBO" abstract="true" class="com.xxxx.abcd.AbstractBOImpl">
		<property name="subBO">
			<ref bean="subBO"/>
		</property>
	</bean>
<!-- 子类 -->
<bean id ="subBO" class="com.xxxx.abcd.Sub"  parent="abstractBO"/>

Error creating bean with name 'subBO': Bean with name 'subBO' has been injected into other beans [subBO] in its raw version as part of a circular reference, but has eventually been wrapped (for example as part of auto-proxy creation). This means that said other beans do not use the final version of the bean. This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for example.

[yjavastudy]

你可以这样试试
<!-- 子类 -->
<bean id ="subBO" class="com.xxxx.abcd.Sub" parent="abstractBO"/>
<!-- 抽象类 -->
<bean id ="abstractBO" abstract="true" class="com.xxxx.abcd.AbstractBOImpl">
<property name="target">
<ref bean="subBO"/>
</property>
</bean>

[修身0]

<bean id ="abstractBO" abstract="true" class="com.xxxx.abcd.AbstractBOImpl" parent="abstractDao">
<property name="subBO">
<ref bean="subBO"/>
</property>
</bean>
<bean id ="subBO" class="com.xxxx.abcd.Sub" parent="abstractBO"/>

看看这样可以了不！

[修身0]

<bean id ="abstractBO" class="com.xxxx.abcd.AbstractBOImpl" parent="abstractDao">
<property name="subBO">
<ref bean="subBO"/>
</property>
</bean>
<bean id ="subBO" class="com.xxxx.abcd.Sub" parent="abstractBO"/>

看看这样可以了不！