传智Struts2笔记（10）获取request/session/application属性
访问或添加request/session/application属性

public class HelloWorldAction implements ServletRequestAware, ServletResponseAware, ServletContextAware{private HttpServletRequest request;private ServletContext servletContext;private HttpServletResponse response;public void setServletRequest(HttpServletRequest req) {this.request=req;}public void setServletResponse(HttpServletResponse res) {this.response=res;}public void setServletContext(ServletContext ser) {this.servletContext=ser;}}