Ajax 请求session过期的统一处理
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | public class LoginInterceptor extends HandlerInterceptorAdapter { @SuppressWarnings ( "unused" ) private static final Logger log = Logger.getLogger(LoginInterceptor. class ); @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { // log.info("URL="+request.getRequestURL().toString()); Object obj = request.getSession().getAttribute(SecurityConstants.LOGIN_USER); if ( null == obj) { if (WebUtil.isAjaxRequest(request)){ response.setHeader( "sessionstatus" , "timeout" ); } else { response.sendRedirect(request.getContextPath()+ "/usr/login" ); } return false ; } return super .preHandle(request, response, handler); } } |
1 2 3 4 5 6 7 | public static boolean isAjaxRequest(HttpServletRequest request){ boolean result = false ; String headerX = request.getHeader( "X-Requested-With" ); return headerX != null && headerX.equalsIgnoreCase( "XMLHttpRequest" ); } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | /** * 设置未来(全局)的AJAX请求默认选项 * 主要设置了AJAX请求遇到Session过期的情况 */ $.ajaxSetup({ type: 'POST' , complete: function (xhr,status) { var sessionStatus = xhr.getResponseHeader( 'sessionstatus' ); if (sessionStatus == 'timeout' ) { var top = getTopWinow(); var yes = confirm( '由于您长时间没有操作, session已过期, 请重新登录.' ); if (yes) { top.location.href = '/skynk/index.html' ; } } } }); /** * 在页面中任何嵌套层次的窗口中获取顶层窗口 * @return 当前页面的顶层窗口对象 */ function getTopWinow(){ var p = window; while (p != p.parent){ p = p.parent; } return p; } |
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