Dynamic response by java and handle using ajax jquery for all content types

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Dynamic response by java and handle using ajax jquery for all content types

Jquery ajax call
             var url="trackDynamicResponse.do";
              $.ajax({                           
                       url: url,
                       type: 'GET',
                       data :{
                             responseType : _responseType
                              
                       },
                       success: function(response, status, xhr){
                            
                               var ct = xhr.getResponseHeader("content-type") || "";
                               if (ct.indexOf('html') > -1) {
                                 console.log("html ...");                              
                               }
                               if (ct.indexOf('json') > -1) {
                                  console.log("json ...");                                 
                               }
                               if (ct.indexOf('xml') > -1) {
                                  console.log("xml ...");                               
                                  }
                               console.log(response);
                              $('#responseDiv').html("response :: "+response.toString());
                       },
              error :function( xhr, status, errorThrown ){                            
                alert(" An error occured: " + errorThrown + ", Status : " + status);           
                             console.log(errorThrown);
                             /* if(errorThrown.indexOf("XML")>-1){
                                    $('#responseDiv').html(errorThrown);
                             } */
              }
         });

 ---------------------------------------------------------------------------
Servlet :

   public String trackDynamicResponse() throws IOException{
 
    String responseType=request.getParameter("responseType");
   
    
    if(responseType !=null && responseType.equalsIgnoreCase("JSON")){
       
    JSONObject json      = new JSONObject();
    JSONArray  addresses = new JSONArray();
    JSONObject address;
   
      int count = 15;
  for (int i=0 ; i<count ; i++)
  {
      address = new JSONObject();
      address.put("CustomerName"     , "Decepticons" + i);
      address.put("AccountId"        , "1999" + i);
      address.put("SiteId"           , "1888" + i);
      address.put("Number"            , "7" + i);
      address.put("Building"          , "StarScream Skyscraper" + i);
      address.put("Street"            , "Devestator Avenue" + i);
      address.put("City"              , "Megatron City" + i);
      address.put("ZipCode"          , "ZZ00 XX1" + i);
      address.put("Country"           , "CyberTron" + i);
      addresses.add(address);
  }
  json.put("Addresses", addresses);
   
   
    response.setContentType("application/json");
    response.getWriter().write(json.toString());
   
    }else if(responseType !=null && responseType.equalsIgnoreCase("XML")){
    response.setContentType("application/xml");
    String xml = "";
             xml = xml + "<response>";
             xml = xml + " This is XML Response";
             xml = xml + "</response>";
    response.getWriter().write(xml);
    }else if(responseType !=null && responseType.equalsIgnoreCase("HTML")){
   
    String html = "<html><body>";
    html = html + "This is <b>HTML</b> Response";          
    html = html + "</response>";
             
    response.setContentType("text/html");
    response.getWriter().write(html);
    }else{
    response.getWriter().write("default text Response type");
    }
   
    return null;

}


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