Spring Interceptors

applicationContext-dispatcher.xml
we can configure the interceptors as follows in this.


<bean id="visitedPageInterceptor" class="au.com.vvv.oes.ui.controller.interceptor.VisitedPageInterceptor"/>
<bean id="trailingSlashInterceptor" class="au.com.vvv.oes.ui.controller.interceptor.TrailingSlashInterceptor"/>
<bean id="breadcrumbInterceptor" class="au.com.vvv.oes.ui.controller.interceptor.BreadcrumbInterceptor"/>
<bean id="ie6Interceptor" class="au.com.vvv.oes.ui.controller.interceptor.IE6Interceptor"/>
<bean id="SEOInterceptor" class="au.com.vvv.oes.ui.controller.interceptor.SEOInterceptor"/>

These interceptors can be post interceptors or preinterceptors.

example visitedPageInterceptor will be as follows,

package au.com.vvv.oes.ui.controller.interceptor;

public class VisitedPageInterceptor extends HandlerInterceptorAdapter {
    @Autowired
    private OrderHelper orderHelper;
   
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView  modelAndView) throws Exception {
   }
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
  String contextUrl = request.getServletPath();
  if (contextUrl != null) {
   if (ArrayUtils.contains(VISITED_PAGE_ENABLED_URLS, contextUrl)) {
    HttpSession session = request.getSession();
    session.setAttribute(LAST_VISITED_PAGE, contextUrl);
    String queryString = request.getQueryString();
    if (isNotBlank(queryString)) {
         session.setAttribute(LAST_VISITED_PAGE, contextUrl + "?" + queryString);
     }
    }
   if (contextUrl.indexOf(MOBILES_ORDER) > -1) {
    createBackButtonLinks(request);
   }
  return true;
 }
}
<bean id="catalogueFilterInterceptor" class="au.com.vvv.oes.ui.controller.interceptor.CatalogueFilterInterceptor"/>

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