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A
ashwinikhaple
Level 2
March 23, 2021
Solved

How Can I call a Service in Servlet

  • March 23, 2021
  • 4 replies
  • 3844 views

I have created a service called MyService and implemented it, I want to call it in my servlet so how can I do that? please help

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Best answer by Asutosh_Jena_

Hi @ashwinikhaple 

Please see below:

 

public class MyServlet extends SlingAllMethodsServlet {

private static final long serialVersionUID = 1L;

@Reference
private transient MyService myservice;

@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {

myservice.anything();

}
}

 

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

 

Hope this helps!
Thanks!

4 replies

Rohit_Utreja
Community Advisor
Rohit_UtrejaCommunity Advisor
Community Advisor
March 23, 2021

Hi, @ashwinikhaple,

 

If you are using SCR annotation, you can use @Reference annotation to inject the service into the servlet.

Something similar to this.

@Reference
MyService service;

You can refer to the below thread for more details.

https://stackoverflow.com/questions/56732548/aem-6-4-x-osgi-servlet-how-to-access-an-osgi-service-from-a-servlet

 

 If you are using R6 annotation, Please refer to below URL for the same.

http://www.nateyolles.com/blog/2017/05/osgi-declarative-services-annotations-in-aem

 

    A
    ashwinikhapleAuthor
    Level 2
    March 23, 2021

    Now, I am trying to render values returned by methods that are in MyService, So to render those in servlet what can I use? 

    Below is MyService Methods code

     

    public interface MyService
    {
    public String getMyFirstName();
    public String getMyLastName();
    public String getMyHobby();
    }

    Asutosh_Jena_
    Community Advisor
    Asutosh_Jena_Community AdvisorAccepted solution
    Community Advisor
    March 23, 2021

    Hi @ashwinikhaple 

    Please see below:

     

    public class MyServlet extends SlingAllMethodsServlet {

    private static final long serialVersionUID = 1L;

    @Reference
    private transient MyService myservice;

    @Override
    protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {

    myservice.anything();

    }
    }

     

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

     

    Hope this helps!
    Thanks!

      Bhuwan_B
      Community Advisor
      Bhuwan_BCommunity Advisor
      Community Advisor
      March 23, 2021

      Please refer below community article:

      https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/calling-component-in-a-servlet/qaq-p/300755

        Ankur_Khare
        Community Advisor
        Ankur_KhareCommunity Advisor
        Community Advisor
        March 23, 2021

        Kindly use like below-

         

        @3214626
        private transient ApiService apiService;

         

         

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