What is the meaning and what it does autowire=“default” in spring in applicationcontext.xml file

问题

What is the meaning of autowire="default" and what it does if autowire="default" in applicationcontext.xml file

Example code Snippet -

<beans>
  <bean name="aa" class="Address">
  </bean>   
  <bean id="person" class="Person" autowire="default">
  </bean>
</beans>

回答1:

That the autowiring is not performed. autowire="default" is the same as putting autowire="no", which is:

no – Default, no auto wiring, set it manually via “ref” attribute

source: http://www.mkyong.com/spring/spring-auto-wiring-beans-in-xml/

EDIT: if you declare a bean with autowire="default" is the same as declaring it with autowire="no":

By default spring bean autowiring is turned off. Spring bean autowire default value is “default” that means no autowiring is to be performed. autowire value “no” also have the same behavior.

source: http://www.journaldev.com/2623/spring-bean-autowire-by-name-type-constructor-autowired-and-qualifier-annotations-example

回答2:

The documentation is indeed confusing. The 'default' value is not even documented in the beans xsd http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

If you resort to annotation driven auto-wiring, 'default' is by type. Your best bet is to play with the options and enable Spring's DEBUG logging. I wouldn't use the default attribute value - better be explicit if you do have to use it.

来源：https://stackoverflow.com/questions/29164330/what-is-the-meaning-and-what-it-does-autowire-default-in-spring-in-application