Sending data from AngularJS factory to a Spring Controller - ajax

Question

I have a spring controller which should recieve data in the sessionAttribute from an angularjs factory.
My Spring Controller is :
#Controller
#SessionAttributes("dataObject")
public class ScreenDesignerController extends BaseController {
/**
* Injected screen designer service class.
*/
#Autowired
private ScreenDesigner screendiService;
#RequestMapping(value = "FormBuilder", method = RequestMethod.POST)
public final String knowDetails(
#ModelAttribute("globalUser") User globalUser,
#RequestParam(value = "dataObject") String myJsonStr,
BindingResult result, RedirectAttributes redirectAttributes,
final Model model
) throws Exception {
try {
logger.info("this is json array: " + myJsonStr);
screendiService.addData(myJsonStr);
} catch (Exception e) {
logger.info("inside customiseForm POST catch");
}
return "ScreenDesigner/FormBuilder";
}
Angular factory:
indApp.factory('sendJsonDataService', function ($http, $rootScope, superCache) {
var sendjsondataservice = {
sendJsonData: function () {
//dataObject = JSON.stringify(superCache.get('super-cache'));
alert(JSON.stringify(dataObject));
res = $http.post('FormBuilder', dataObject);
res.success(function(data, status, headers, config) {
alert("Your Screen has been saved successfully into the database!");
});
res.error(function(data, status, headers, config) {
alert( "failure message: " + JSON.stringify({data: data}));
});
}
};
return sendjsondataservice;
});
Whenever I am invoking the factory via angularjs controller to recieve "dataObject", it says "bad request 400", Though the "dataObject" has valid json data in it.
I want my spring controller to receive this data.
Please help, stuck for two days now :(
Thanks in advance!!

Answer 1

If you're sending JSON as a POST payload, you should be using #RequestBody instead of #RequestParam.

Answer 2

Thy this i modified your controller :
#Controller
#SessionAttributes("dataObject")
public class ScreenDesignerController extends BaseController {
/**
* Injected screen designer service class.
*/
#Autowired
private ScreenDesigner screendiService;
#RequestMapping(value = "FormBuilder", method = RequestMethod.POST)
public final String knowDetails(#RequestBody String myJsonStr,#ModelAttribute("globalUser") User globalUser,
BindingResult result, RedirectAttributes redirectAttributes,
final Model model
) throws Exception {
try {
logger.info("this is json array: " + myJsonStr);
screendiService.addData(myJsonStr);
} catch (Exception e) {
logger.info("inside customiseForm POST catch");
}
return "ScreenDesigner/FormBuilder";
}
Another this be sure to send json data from AngularJS factory. For instance :
headers: {
'Content-type': 'application/json'
}