struts2的拦截器AbstractInterceptor「建议收藏」

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public class AuthorizationInterceptor extends AbstractInterceptor {

@Override public String intercept(ActionInvocation ai) throws Exception { Map<?, ?> session = ai.getInvocationContext().getSession(); UsrinfVO actor = (UsrinfVO) session.get(Constants.LGNUSR); if (actor == null) { actor = SpringUtil.getLgnUsr(); } Action action = (Action) ai.getAction(); if (action instanceof UsrAction) { return ai.invoke(); } HttpServletRequest request = ServletActionContext.getRequest(); // AJAX request session time out handle String type = request.getHeader(“X-Requested-With”); if ( type != null && type.equalsIgnoreCase(“XMLHttpRequest”)) { if(!validateLoginStatus(actor)){ HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType(“text/html;charset=utf-8”); PrintWriter pw = response.getWriter(); //request.setAttribute(“message”, “timeout”); Log.info(“Ajax 超时”); pw.write(“timeout”); return null; } } if (!validateLoginStatus(actor)) { Log.info(“超时退出”); return “goLoginAppPage”; } return ai.invoke(); } }

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