{"id":23779,"date":"2015-08-04T00:31:04","date_gmt":"2015-08-03T19:01:04","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=23779"},"modified":"2015-08-04T09:49:44","modified_gmt":"2015-08-04T04:19:44","slug":"registering-a-servlet-for-every-page-in-aem","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/registering-a-servlet-for-every-page-in-aem\/","title":{"rendered":"Registering a Servlet for every Page in AEM"},"content":{"rendered":"

UseCase<\/strong>: – I had a situation in which needed to return custom information corresponding to every page in AEM and also use it via component to display to end user .<\/p>\n

-Then i have to invoke a Servlet on every page and with the use of selector want to return some information in JSON Format which can be used to display via Component on a Page to end user .<\/p>\n

Solution<\/strong> : -For such situations we use the resourceType as cq\/Page<\/strong> for registering Servlet , so that Servlet is registered for every Page.<\/p>\n

– Then with the use of a particular selector we can get results like list information\/required custom information for every AEM page and display either via component with its ajax request has a url of Current Page.Selector which invokes the Servlet and renders result .<\/p>\n

Note<\/strong>: – Just for reference Sling resolves on basis of Primary Type example cq:Page for Page and dam:Asset for Dam in case sling:resourceType is missing .<\/p>\n

Code Snippet :<\/p>\n

[java]
\n@Component(name = "Site-Results", metatype = false, configurationFactory = false, policy = ConfigurationPolicy.OPTIONAL)
\n@Service(Servlet.class)
\n@Properties([
\n @Property(name = "sling.servlet.resourceTypes", value = ["cq\/Page"]),
\n @Property(name = "sling.servlet.selectors", value = "results"),
\n @Property(name = "sling.servlet.extensions", value = ["json"]),
\n @Property(name = "sling.servlet.methods", value = "GET"),
\n @Property(name = "sling.servlet.description", value = "Gives Results for Every Page")
\n])
\nclass ResultsServlet extends SlingSafeMethodsServlet {<\/p>\n

protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) {<\/p>\n

\/\/Implement Your Logic<\/p>\n

}<\/p>\n

}
\n[\/java]<\/p>\n","protected":false},"excerpt":{"rendered":"

UseCase: – I had a situation in which needed to return custom information corresponding to every page in AEM and also use it via component to display to end user . -Then i have to invoke a Servlet on every page and with the use of selector want to return some information in JSON Format […]<\/p>\n","protected":false},"author":127,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":65},"categories":[1],"tags":[1235,4847,2114],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/23779"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/127"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=23779"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/23779\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=23779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=23779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=23779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}