struts2中登錄過濾器取得request實例與傳參

 

public String intercept(ActionInvocation invocation) throws Exception {
		ActionContext ctx = invocation.getInvocationContext();     
		HttpServletRequest request = (HttpServletRequest)ctx.get(ServletActionContext.HTTP_REQUEST);
		
		
		System.out.println(request.getParameter("url"));
		System.out.println(request.getRequestURI());
		System.out.println(request.getServletPath()); 
		
		
		
		
		String invocationAction=invocation.getAction().getClass().getName();		
		String invocationName=invocationAction.substring(invocationAction.lastIndexOf(".")+1,invocationAction.length());
		if(invocationName.toLowerCase().endsWith("scope"))
		{		
			if(invocation.getInvocationContext().getSession().get("user")==null)
				return BaseAction.USER;
		}
		if(invocationName.toLowerCase().endsWith("stage"))
		{
			if(invocation.getInvocationContext().getSession().get("operator")==null)
				return Action.LOGIN;
		}
		return invocation.invoke();
	}

 

傳參經過

 public String intercept(ActionInvocation invocation) throws Exception   

    {   

        ActionContext ctx = invocation.getInvocationContext();   

        String user = (String)ctx.getSession().get("username");   

        System.out.print(user);   

        if (user != null)   

        {   

            return invocation.invoke();   

        }   

        System.out.print(user);   

        ctx.put("tip", "您尚未登陸，請登錄系統");   

        return Action.LOGIN;   

    }   

便可在頁面中獲得