struts2 一些参数的获

session的获取:ActionContext.getContext().getSession()

servlet的获取 ServletActionContext

action上下文:ActionContext   通过ActionContext可以获得:

        ActionContext ctx = ActionContext.getContext();
        //Returns a Map of the ServletContext when in a servlet environment or a generic application level Map otherwise.
        Map<String, Object> smap = ctx.getApplication();
        //struts2的context
        Map<String, Object> s2map = ctx.getContextMap();
        //获取原生的HttpServletRequest
        HttpServletRequest request = (HttpServletRequest) ctx.get(StrutsStatics.HTTP_REQUEST);
        //获取请求参数
        Map<String, Object> pmap = ctx.getParameters();
        //Session
        Map<String, Object> session = ctx.getSession();
如果是个通过spring实现的ioc应用,则可以获得spring的上下文:

WebApplicationContext context = (WebApplicationContext) smap.get(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
DataSource dateSource = (DataSource) context.getBean("dataSource");




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