Struts 2获取HttpServletRequest / HttpSession / ServletContext / HttpServletResponse对象
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1: ActionContext ctx = ActionContext.getContext(); ctx.getApplication().put("app", "应用范围");//往ServletContext里放入app ctx.getSession().put("ses", "session范围");//往session里放入ses ctx.put("req", "request范围");//往request里放入req 2: 通过ServletActionContext.类直接获取: public String rsa() throws Exception{ HttpServletRequest request = ServletActionContext.getRequest(); ServletContext servletContext = ServletActionContext.getServletContext(); request.getSession() HttpServletResponse response = ServletActionContext.getResponse(); return "scope"; } 3: 实现指定接口,由struts框架运行时注入: 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; } }
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- Struts 2获取HttpServletRequest / HttpSession / ServletContext / HttpServletResponse对象
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