Spring加載上下文的方式有兩種:
- 監聽加載 ContextLoaderListener
- servlet加載 DispatcherServlet
<!-- 配置Spring核心控制器 -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
WebApplicationContextUtils.getWebApplicationContext(servletContext,attribute)
就可以取到私有的上下文信息了。