多么痛的领悟----(码农的低级错误)

Posted 2020-09-29 Gerald_X

(2017-7-23)

问题描述: 

　　页面url请求发出后,显示404; 控制台debug:

[DEBUG] Last-Modified value for [/page/index] is: -1

　　[org.springframework.web.servlet.DispatcherServlet]-

[DEBUG] Null ModelAndView returned to DispatcherServlet with name ‘springmvc‘: assuming HandlerAdapter completed request handling

　　[org.springframework.web.servlet.DispatcherServlet]-

[DEBUG] Successfully completed request

　　[org.springframework.beans.factory.support.DefaultListableBeanFactory]-

[DEBUG] Returning cached instance of singleton bean ‘sqlSessionFactory‘

 

结果: 

<!-- 配置扫描器，使得@Controller注解生效 -->

<context:component-scan base-package="com.jt.manage.controller" />

但是: 项目中的base-package="controller"!!!

　　base-package名称不一致,导致无法扫描到controller, 才出现以上问题.