can't post form data as json using jquery 3 to jersey -

i need understand why $.ajax not sending post instead jersey?

i have seen many posts in stackoverflow , other websites/forums no success.

this client code:

$('#formlookupuser').submit( function (event) {          var userfilter = {             "email" : $('#inputemail').val(),             "firstname" :$('#inputfirstname').val(),             "lastname" : $('#inputlastname').val(),             "type" : $('#inputtype').val()         };          $.ajax( {             method: "post",             url: "http://localhost:8080/newjersey/rest/user/filter",             data: json.stringify(userfilter),             contenttype: "application/json"         } )         .done( function(response){             showresults(response);         })         .fail( function(jqxhr, textstatus){             alert(textstatus);         }); }); 

and server code:

@post @path("/add") @consumes(mediatype.application_json) public response adduser(user user) throws sqlexception {      logger.info("inserting user ... ");      try{         dbqueries q = new dbqueries();          int iduser = q.insuserandbankdetails(user);         user.setid(iduser);          return response.ok("user saved").build();      }catch (sqlexception e){         return response.servererror().entity(e).build();     } } 

i got working following @jasonp suggestion.

the problem form submitting data before $.ajax call.

the solution change client as:

    $(document).ready(function() {      $('#formlookupuser').submit( function (event) {          clearresults();          var userfilter = {             "email" : $('#inputemail').val(),             "firstname" :$('#inputfirstname').val(),             "lastname" : $('#inputlastname').val(),             "type" : $('#inputtype').val()         };          $.ajax( {             method: "post",             url: "http://localhost:8080/newjersey/rest/user/filter",             data: json.stringify(userfilter),             contenttype: "application/json"         } )         .done( function(response){             showresults(response);         })         .fail( function(jqxhr, textstatus){             alert(textstatus);         });          event.preventdefault(); // <--- prevent default action.     });