AEM 6.3 - registering Servlets with paths | Community
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brendanf9753525
brendanf9753525
Level 4
April 10, 2018

AEM 6.3 - registering Servlets with paths

  • April 10, 2018
  • 4 replies
  • 24863 views

Hi all,

I have a servlet that I am trying to register at the /feed path. It will be a servlet that takes GET requests and returns out some data.

My servlet has this path at the top when registering it.

@SlingServlet(paths = "/feed", methods = "GET", metatype = true)

I also went into the Apache Sling Servlet/Script Resolver and Error Handler and added the /feed/ path as one of the allowed scripts.

However, whenever I visit localhost:4502/feed, I get a 403 forbidden error. I see that it gets to my class and path, but it throws a 403 regardless.

However, If I move the servlet to /bin/feed, I can visit it successfully without a 403 error.

Is there a way to have servlets registered at paths without having the /bin/ path in front of them? I am pretty new to java servlets so any advice/suggestions would definitely go a long way.

Thanks

Brendan.

    4 replies

    smacdonald2008
    smacdonald2008
    Level 10
    April 10, 2018

    I personally have only used syntax like:

    @SlingServlet(paths="/bin/mySearchServlet", methods = "POST", metatype=true)

    public class HandleClaim extends org.apache.sling.api.servlets.SlingAllMethodsServlet {

    Why is using /bin an issue?

    smacdonald2008
    smacdonald2008
    Level 10
    April 10, 2018

    Also - keep in mind - if you are using new DS OSGi annotations - then the syntax is

    @Component(service=Servlet.class,

            property={

                    Constants.SERVICE_DESCRIPTION + "=Simple Demo Servlet",

                    "sling.servlet.methods=" + HttpConstants.METHOD_POST,

                    "sling.servlet.paths="+ "/bin/myDataSourcePoolServlet"

               })

    public class SimpleServlet extends SlingAllMethodsServlet {

    smacdonald2008
    smacdonald2008
    Level 10
    April 10, 2018

    See this write up about DS annotations -- Official OSGi Declarative Services Annotations in AEM - Adobe Experience Manager | AEM/CQ | Apache Sling

    Jineet_Vora
    Community Advisor and Adobe Champion
    Jineet_VoraCommunity Advisor and Adobe Champion
    Community Advisor and Adobe Champion
    December 2, 2019

    Per Apache Sling, there are different ways to register a servlet path.
    If you want at first level then you have to register a servlet as '/feed.servlet' and then in 'Apache Sling Servlet/Script Resolver and Error Handler' configuration add '/feed.servlet' as your servlet execution path. Note that '.servlet' is expected and mandatory for first level servlet.
    If you want to keep at second/more than one level then in the configuration, you have to specify the sub-tree like '/feed/' which will expect a servlet at any of the /feed/ sub-tree e.g. '/feed/fetchData' or '/feed/postData'


    If you have given path as '/feed' or '/feed/' in configuration and calling the servlet with http://localhost:4502/feed , it won't work because Apache Sling expects a resource in this case and not a servlet execution script. A servlet script will only be executed in above two scenarios I mentioned.

      BrianKasingli
      Community Advisor and Adobe Champion
      BrianKasingliCommunity Advisor and Adobe Champion
      Community Advisor and Adobe Champion
      December 2, 2019

      Hello Brendan,

      It seems like you want to add some sugar coat your Sling Servlet Resolver script/path. Please check out this article where it will provide a solution on how you can write endpoints/paths in a more controlled way. It will reveal to you a strategy to hide all the extensions, selectors, paths, etc by doing this the Apache Rewriter Flag.

      https://sourcedcode.com/sugar-coating-servlet-scripts-and-paths

      I hope this helps!

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