Spring Controller的继承,父类注入的属性自类继承为空

Question

@Controller
class A {

@Autowired
protected HttpServletRequest request;
}
class B extends A{
log.info(request);
}

打印为空,debug发现父类的request注入有值,但是在子类获取的时候也变成空了.

为什么?
拜托兄弟们了.

Answer 1

http://kingxss.iteye.com/blog/1563894