【C015089】Spring-与Struts 2集成如何设置整个spring配置文件的<bean>为默认自动装配（）。

• A.<beans default-autowire="byName">  
  
    
  
      <bean name="loginAction" class="com.wen.action.LoginAction"></bean>  
  
      <bean id="userService" class="com.wen.service.impl.UserServiceImpl"></bean>  
  
    
  
  </beans>

• B.<beans >  
  
    
  
      <bean name="loginAction" class="com.wen.action.LoginAction" default-autowire="byName"></bean>  
  
  <bean id="userService" class="com.wen.service.impl.UserServiceImpl">
  
  </bean>  
  
    
  
  </beans>

• C.<beans >  
  
    
  
      <bean name="loginAction" class="com.wen.action.LoginAction"></bean>  
  
  <bean id="userService" class="com.wen.service.impl.UserServiceImpl" 
  
  default-autowire="byName"></bean>  
  
    
  
  </beans>

• D.<beans >  
  
    
  
  <bean name="loginAction" class="com.wen.action.LoginAction"
  
  default-autowire="byName"></bean>  
  
  <bean id="userService" class="com.wen.service.impl.UserServiceImpl"
  
  default-autowire="byName"></bean>  
  
    
  
  </beans>