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Default Sling Servlet

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Hi

My Logout Servlet is defined as

@Component(enabled = true)
@Service(Servlet.class)
@Properties({
   @Property(name="resourceTypes", value="sling/servlet/default"),
   @Property(name="methods", value="POST"),
   @Property(name="selectors", value="ourlogout"),
   @Property(name="extensions", value="html"),
    @Property(name="service.pid", value="package.LogoutServlet", propertyPrivate=false),
})

After compaling and using VLT to commit changes to the repository. i see it in http://localhost:4502/system/console/components

but not in http://localhost:4502/system/console/services

what is problem here?

How else I can test from Adobe AEM this default Sling Servlet ?

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edubeyAccepted solution

Level 10

Here is a good documentation for sling servlets: [1] and Read this as well [2]

You are able to see it because you have enabled (@Component(enabled = true)) .

You can access this servlet via path which you have given or properties which you have defined.

Example. A servlet defined as

@Service(Simple.class) @SlingServlet(paths = { "/bin/simple/adobe" }, generateComponent = false) @Component(label = "Simple adobe component", enabled = true, immediate = true, metatype = false) public class Simple extends SlingSafeMethodsServlet { }

Will be accessed via path

/bin/simple/adobe

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

[2] http://stackoverflow.com/questions/8886430/what-is-the-difference-between-osgi-components-and-services

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Xena_bcnAuthor

Level 5

Opkar Gill wrote...

Why are you not using a maven project to build and deploy your servlet? I haven't heard of using vlt to commit code changes to AEM.

[1]https://helpx.adobe.com/experience-manager/using/custom-sling-servlets.html

yes I use Maven....

https://docs.adobe.com/docs/en/cq/5-5/developing/developmenttools/developing_with_eclipse.html

here it is written to use VLT too.

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Xena_bcnAuthor

Level 5

smacdonald2008 wrote...

For a logout - i would have a button and when its clicked - i would invoke a Sling Servlet by using binding by path.

As shown in this Sling topic - both are valid: https://sling.apache.org/documentation/the-sling-engine/servlets.html.

However - if you want to bind the servlet by resource type - here is an article:

Binding Adobe Experience Manager Servlets to ResourceTypes @ https://helpx.adobe.com/experience-manager/using/resourcetypes.html.

Now for using the vault tool - you use that to sync code between your IDE ( for example, Eclipse) and the JCR - not to build and deploy servlets - you use Maven for that - as shown in the above article.

thank you.

I can do that

But problem is that this Servlet is not listed in Services.

here

https://forums.adobe.com/thread/1113958

It is written "ExampleServlet must be visible in the bundle in the Services list"

But my servlet is inside the whole project JAR ( OSGI-INF)

Maybe i am doing something wrong.

This servlet is visible in Components only.

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Xena_bcnAuthor

Level 5

thank you, @edubey

Meanwhile I was reading about Servlets called by resource type and default servlet.

Even though I can see this servlet in Components, and in the 2nd link you provided, it is said : "A component may publish itself as an OSGi service."

in publish instance "Logout" button is not working.

The post action just changes the URL to: /content/<site>/<path>/<html_name>.ourlogout.html

But the logout servlet hasn't been called.

Where did I leave something?

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smacdonald2008

Level 10

For a logout - i would have a button and when its clicked - i would invoke a Sling Servlet by using binding by path.

As shown in this Sling topic - both are valid: https://sling.apache.org/documentation/the-sling-engine/servlets.html.

However - if you want to bind the servlet by resource type - here is an article:

Binding Adobe Experience Manager Servlets to ResourceTypes @ https://helpx.adobe.com/experience-manager/using/resourcetypes.html.

Now for using the vault tool - you use that to sync code between your IDE ( for example, Eclipse) and the JCR - not to build and deploy servlets - you use Maven for that - as shown in the above article.

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edubey

Level 10

When invoking your servlet, are you seeing anything in log any error?

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edubeyAccepted solution

Level 10

Here is a good documentation for sling servlets: [1] and Read this as well [2]

You are able to see it because you have enabled (@Component(enabled = true)) .

You can access this servlet via path which you have given or properties which you have defined.

Example. A servlet defined as

@Service(Simple.class) @SlingServlet(paths = { "/bin/simple/adobe" }, generateComponent = false) @Component(label = "Simple adobe component", enabled = true, immediate = true, metatype = false) public class Simple extends SlingSafeMethodsServlet { }

Will be accessed via path