个回答

• qq_赶羊的哇_0

  2017-07-09 16:31:06

  <bean id="injectionService" class="com.imooc.ioc.injection.service.InjectionServiceImpl"> 

  <constructor-arg name="injectionDAO" ref="injectionDAO"></constructor-arg> 

  </bean>

  constructor-arg name属性一致，你的是injectionDAO1，那对应的就是

  <constructor-arg name="injectionDAO1" ref="injectionDAO"></constructor-arg>

  0