Spring 通过单利模式，单利方法获取对象--factory-method="getInstance"(二)

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	<bean id="a"
		class="com.ioc.A" factory-method="getInstance">
		<property name="b" ref="b" />
		<property name="c" ref="c" />
	</bean>	<bean id="a"
		class="com.ioc.A" factor