extjs4 - ExtJs 4 File upload with RESTEasy 2.3.0.GA , Invalid JSON response -

there lot of discussion topic no real solution.

here problem if use

1) @produce("application/json") json response show in <pre> tag

2) if use @produce("application/html") or @produce("text/html"),then resteasy breakdown , error out jaxb exception :

uncaught ext.error: you're trying decode invalid json string:

http status 500 - not find jaxbcontextfinder media type: text/html

type status report

message not find jaxbcontextfinder media type: text/html

description server encountered internal error (could not find jaxbcontextfinder media type: text/html) prevented fulfilling request.

jboss web/3.0.0-cr2

i desperate , there solution suggested in forms: 1) change contect type text/html 2) update extjs source code 3) parse <pre> tag in fron the json response don't want 2nd , 3rd in ist want valid json output. how can ?

here is serverice class:

 @post     @path("/bulkupdate")     @consumes("multipart/form-data")     @produces({"application/json"})     public extjsjson<dataexception> uploadfile(multipartformdatainput input) {          map<string, list<inputpart>> uploadform = input.getformdatamap();         list<inputpart> inputparts = uploadform.get("uploadedfile");         list<dataexception> list = new arraylist<dataexception>();         final extjsjson<dataexception> returnobj = new extjsjson<dataexception>();         (inputpart inputpart : inputparts) {             try {                 multivaluedmap<string, string> header = inputpart.getheaders();                 string filename  = getfilename(header);                 inputstream inputstream = inputpart.getbody(inputstream.class, null);                 byte[] bytes = ioutils.tobytearray(inputstream);                  //handle excel file upload , return error if file not have valid data like..                 dataexception error = new dataexception("supervisor", "columnname", 1, "sheetname", "this not valid supervisor");                    list.add(error);             } catch (ioexception e) {                 e.printstacktrace();             }         }         returnobj.setsuccess(true);         returnobj.setresults(list);         return returnobj;     } 

here response object dataexception.java

@data @xmlrootelement @xmlaccessortype(xmlaccesstype.field) public class dataexception {      //private static final long serialversionuid = 1l;      /** excel sheet name */     private string sheetname;      /** row number of excel sheet */     private int rownumber;      /** field name/cell header **/     private string fieldname;      /** cell value */     private string fieldvalue;      private string description; } 

here error (json response tag)

uncaught ext.error: you're trying decode invalid json string: <pre style="word-wrap: break-word; white-space: pre-wrap;">{"total":1,"success":true,"results":[{"description":"this not valid supervisor","fieldname":"supervisor","fieldvalue":"testpm","rownumber":1,"sheetname":"sheet1"}]}</pre>

i had same problem , solution was:

1. use @produces("text/html")

2. your method need send string frontend:

   public string uploadfile (...)

3. easiest way implement tostring() method in extjsjson class returns in string format.