how to upload a multipart file using angular js spring mvc

Question

I am trying to upload a file using angularjs and spring MVC

I have a multipartResolver bean in application-context.xml.

Answer 1

Creating a directive will be the most useful way in this. The following directive can be used.

var myApp = angular.module('myApp', []);

myApp.directive('fileModel', ['$parse', function ($parse) {
return {
    restrict: 'A',
    link: function(scope, element, attrs) {
        var model = $parse(attrs.fileModel);
        var modelSetter = model.assign;

        element.bind('change', function(){
            scope.$apply(function(){
                modelSetter(scope, element[0].files[0]);
            });
        });
    }
};
}]);

Service:

myApp.service('fileUpload', ['$q','$http', function ($q,$http) {
var deffered = $q.defer();
var responseData;
this.uploadFileToUrl = function(file, uploadUrl){
var fd = new FormData();
fd.append('file', file);
return $http.post(uploadUrl, fd, {
transformRequest: angular.identity,
 headers: { 'Content-Type' : undefined}
})
.success(function(response){

/* $scope.errors = response.data.value; */


console.log(response);
 responseData = response;
 deffered.resolve(response);
 return deffered.promise;
 })
 .error(function(error){
 deffered.reject(error);
 return deffered.promise;
 });

}

this.getResponse = function() {
 return responseData;
 }

}]);

Controller:

myApp.controller('myCtrl', ['$scope', '$q', 'fileUpload', function($scope, $q, fileUpload){
 $scope.dataUpload = true;
 $scope.errVisibility = false;
 $scope.uploadFile = function(){
 var file = $scope.myFile;
 console.log('file is ' );
 console.dir(file);

var uploadUrl = "/continueFileUpload";
 fileUpload.uploadFileToUrl(file, uploadUrl).then(function(result){
 $scope.errors = fileUpload.getResponse();
 console.log($scope.errors);
 $scope.errVisibility = true;
 }, function(error) {
 alert('error');
 })

};
 }]);

HTML:

    

    
    upload me

                

                ×
                                Errors! {{errors.data.value}}
                

Just check this following link that let you know how to use this from scratch if you are new to directives in angularjs. Spring MVC file upload using AngularJS

Really a good one for file upload.