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AdobeID24
AdobeID24
Level 5
December 28, 2020
Solved

can we do ajax call of a servlet registered with resourceType?

  • December 28, 2020
  • 4 replies
  • 6884 views

Very classic question bt not clear to me ..can we do ajax call of a servlet registered with resourceType?

 

I have read some article they talk about calling the page (which has that particular resourceType component )with selector( mentioned during servlet registration )will automatically trigger the servlet registered with that resource Type .

 

but wanted to know in AJAX respect can we do ajax call as we do for servlet registered with Path ?

 

Any real time scenerio will be helpful .

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    Best answer by Andrei_Dantsou

    Hello @adobeid24,

    1. The servlet should be registered with the desired resource type:

    @SlingServletResourceTypes(
            resourceTypes = "/bin/target-resource-type",
            methods = HttpConstants.METHOD_GET
    )
    public class SimpleServlet extends SlingAllMethodsServlet {

    2. The resource with the corresponding resource type should be created, e.g. /content/trigger-servlet containing the property sling:resourceType with the value /bin/target-resource-type

     

    3. The path of the resource from the point #2 should be requested via ajax:

    $.ajax({
        url: '/content/trigger-servlet',
        type: 'GET' 
        ...


    Regards

    4 replies

    Anudeep_Garnepudi
    Community Advisor
    Anudeep_GarnepudiCommunity Advisor
    Community Advisor
    December 28, 2020

    @adobeid24 

    Yes you can call. There is no difference in the way to hit the Servlet(path or resource type) from client side. 

    AG
      AdobeID24
      AdobeID24Author
      Level 5
      December 29, 2020

      @anudeep_garnepudi...Thanks for the reply ...can you please explain me little bit more it wiuld be helpful .

       

      Suppose i regitser my servlet on reourceType:/apps/<project-name>/component/content/tagcomponent

       

      Can we call like that?

       

       

      $.ajax({
          url: '/apps/<project-name>/component/content/tagcomponent',
          type: 'GET' 
          ...

       

      Andrei_Dantsou
      Andrei_DantsouAccepted solution
      Level 3
      December 28, 2020

      Hello @adobeid24,

      1. The servlet should be registered with the desired resource type:

      @SlingServletResourceTypes(
              resourceTypes = "/bin/target-resource-type",
              methods = HttpConstants.METHOD_GET
      )
      public class SimpleServlet extends SlingAllMethodsServlet {

      2. The resource with the corresponding resource type should be created, e.g. /content/trigger-servlet containing the property sling:resourceType with the value /bin/target-resource-type

       

      3. The path of the resource from the point #2 should be requested via ajax:

      $.ajax({
          url: '/content/trigger-servlet',
          type: 'GET' 
          ...


      Regards

        kautuk_sahni
        Community Manager
        kautuk_sahniCommunity Manager
        Community Manager
        January 11, 2021
        Very well written reply. Thank you for sharing this with community.
        Kautuk Sahni
        shelly-goel
        Adobe Employee
        shelly-goelAdobe Employee
        Adobe Employee
        December 28, 2020

        @adobeid24 

        AFAIK when a servlet is registered with 'resourceType', it will be called if the respective component is invoked and servlet cannot be requested through ajax. If there's a need to call the same servlet with ajax too, then register it with 'path' as well.

         

        As per the sling documentation, if you would specify both 'resourceType' and 'path' in the servlet, it would be registered both ways.

        https://sling.apache.org/documentation/the-sling-engine/servlets.html

        "If both are set, the servlet is registered using both ways"

          shelly-goel
          Adobe Employee
          shelly-goelAdobe Employee
          Adobe Employee
          December 30, 2020

          @adobeid24 

          I tried with the json extension (rather than html as I was referring earlier) in ajax as below:

          @SlingServlet(resourceTypes = "<your resurceType>", selectors = "myselector",

          extensions = "json", methods = "GET")

          $.ajax({ type:"GET", url: "<resourcepath>/_jcr_content.myselector.json", ...});

          If you're using 'page' as the resourcetype, you could replace your resourcetype in the servlet with "cq/page" and would not have to use ''_jcr_content" in the ajax url/path.

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