java - Unable to get Response from spring webservice -

i implementing angularjs , spring integration tutorial. here want call spring controller angular js code , store user details in database.here able hit webservice , able store details in database. not receiving response returned controller in js , in console can see error msg not clear though.

error in console

angular.js:10573 http://localhost:8083/hcp_android_demo/user?username=akur&address=hhh&email=xyz@gmail.com&callback=angular.callbacks._ 

usercontroller.java

@requestmapping(value="/user",method={requestmethod.post,requestmethod.get})     @responsebody public boolean createuser(@requestparam("username") string username,@requestparam("address")string address,@requestparam("email") string email,@requestparam("callback")string callbackfunction){     system.out.println("creating user " + username);     boolean insertstatus=userservice.save(username,address,email);     system.out.println("insert status is"+insertstatus);//prints true     return insertstatus;  } 

services.js

  angular.module('myapp').factory('userservice', ['$http', function($http){ return{     createuser: function(username,address,email){          var url="http://localhost:8083/hcp_android_demo/user?username="+username+"&address="+address+"&email="+email+"&callback=json_callback";         return $http.jsonp(url).success(function(data) {             alert(data);             return data;         });     } };  }]);