spring mvc在Controller中获取ApplicationContext
web.xml中进行正常的beans.xml和spring-mvc.xml的配置；
需要在beans.xml中进行需要加载的类的配置；不能在spring-mvc.xml中配置；
beans.xml中的配置：
<bean id="deployMode" class="java.lang.String">
<constructor-arg>
<value>development</value><!-- production -->
</constructor-arg>
</bean>
Controller中三种获取方式：
@RequestMapping(value = "/deploymode")
@ResponseBody
public String getDeployMode(HttpServletRequest request) {
// 1, ContextLoader.getCurrentWebApplicationContext
// WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
// String deploy = context.getBean("deployMode", String.class);
// return deploy;
// 2,servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE)
ServletContext servletContext = request.getSession().getServletContext();
WebApplicationContext context = (WebApplicationContext) servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
String deploy = context.getBean("deployMode2", String.class);
return deploy;
// 3,RequestContextUtils.getWebApplicationContext(request);
// WebApplicationContext context = RequestContextUtils.getWebApplicationContext(request);
// String deploy = context.getBean("deployMode", String.class);
// return deploy;
}
参考：
http://www.07net01.com/linux/springMVCzaiControllerzhonghuoquWebApplicationContext_656388_1381902854.html
http://zhidao.baidu.com/link?url=ThsMgUqmhDMzlI7MZrB0346vSm1y1e4mNOIzbmSg8AYyAZCwygiSIE0EHHKd3R-rI_lH1M6BEDen68ARPWGXOFkBM9xldUWAFcToaK9edyq