why do sling servlets only work with with a path of /bin/demo/xxx? | Community

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why do sling servlets only work with with a path of /bin/demo/xxx?

Forum|Forum|4 years ago
April 6, 2021
2 replies
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I copied a sling servlet which had the path of /bing/demo/querybuilder

@Component(service = Servlet.class, property = { Constants.SERVICE_DESCRIPTION + "=Query Builder servlet",

"sling.servlet.methods=" + HttpConstants.METHOD_GET, "sling.servlet.paths=" + "/bin/demo/querybuilder" })

In creating our own sling servlets, we tried to change the path (e.g. to "/api/xxx/yy"), but no path other than /bin/demo/ seems to work. What is magical about this path?

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Best answer by Asutosh_Jena_

There is an OSGi Configuration named Apache Sling Servlet/Script Resolver and Error Handler in the felix console.

It has a property called "Execution Paths(servletresolver.paths)" which holds a list of absolute paths under which the servlet is accessible as a Resource.

By default bin is allowed in the resolver path which is why it works.

If you want your servlet with /api path to be accessible you will need to allow the path in the resolver paths. Please see the screenshot below:

It is recommended to use resource type based servlet over path based now. Please refer the link below:

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

Hope this helps!

Thanks!

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Accepted solution

Community Advisor

There is an OSGi Configuration named Apache Sling Servlet/Script Resolver and Error Handler in the felix console.

It has a property called "Execution Paths(servletresolver.paths)" which holds a list of absolute paths under which the servlet is accessible as a Resource.

By default bin is allowed in the resolver path which is why it works.

If you want your servlet with /api path to be accessible you will need to allow the path in the resolver paths. Please see the screenshot below:

It is recommended to use resource type based servlet over path based now. Please refer the link below:

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

Hope this helps!

Thanks!

Level 8

Thanks for the comprehensive answer. I tried the new type of sling servlets, but could not get them to work. The old ones are good in that you can just create the java file and they work - no magic sauce required (other than choosing a path which starts with /bin!)

Level 8

hello, it is mainly for security and processing of request correctly, as i noticed. but apart from /bin you can also implement your servlet using resource type and selector like below

@SlingServlet(resourceTypes = "site/components/mypage",
selectors = "myselector",
extensions = "html",
methods = "GET",
metatype =true)

Thanks!!