Adobe Experience Manager Sites & More

Anil_Jagtap · 3/27/18

Hi,
I'm new with AEM.
I'm trying to call Servlet using Ajax call. But getting javax.jcr.nodetype.ConstraintViolationException: No default node type available for /bin/myServlet exception.

My ajax code is:

 $.ajax({
            type: 'POST', 
            url:'/bin/myServlet',
            data:'path='+ path,
            success: function(msg){
               alert("Hello");
            }
        });

And my Java code is:

@Service(value = Servlet.class)
@SlingServlet(paths = { "/bin/myServlet" }, methods = { "POST" }, metatype = false)
public class HandleClaim extends SlingAllMethodsServlet {
 protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
   throws ServletException, IOException {
  ResourceResolver resourceResolver = request.getResourceResolver();
  Resource resource = resourceResolver.getResource("/etc/tags/ffb/faq/");
  JSONObject namesObject;
  JSONArray namesList = new JSONArray();
  JSONObject namesListObject = new JSONObject();
  JSONArray tagnames = ListAllTags(resource);
  try {
   for (int i = 0; i < tagnames.length(); i++) {
    namesObject = new JSONObject();
    namesObject.put("text", tagnames.get(i));
    namesObject.put("value", tagnames.get(i));
    namesList.put(namesObject);
   }
   namesListObject.put("categories", namesList);
  } catch (JSONException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  response.setContentType("text/plain");
  response.getWriter().write(namesListObject.toString());
 }
 public JSONArray ListAllTags(Resource resource) {
  JSONArray categoryArray = new JSONArray();
  if(resource!=null) {
   Iterable<Resource> check = resource.getChildren();  
   for (Resource test : check) {
    categoryArray.put(test.getName());
   }
  } 
  return categoryArray;
 }
}