struts2 拦截器，使用spring注入

ActionContext actionContext = invocation.getInvocationContext();
ServletContext context  = (ServletContext) actionContext.get(StrutsStatics.SERVLET_CONTEXT);
WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(context);
OperatorDao operatorDao = (OperatorDao) ctx.getBean("agentOperatorDao");