Spring Controller is not accepting the file sent by the angular controller - angularjs

I'm posting some form data to the Spring controller and if it is successful, again I'm posting two files from Angular controller to Spring controller:
$http.post('userdetails', formData).success(function(response) {
if ($scope.items.length > 0) {
for (var i = 0; i < $scope.items.length; i++) {
$scope.uploadItem(response.id, $scope.items[i]);
}
}
});
This is my uploadItem function:
$scope.uploadItem = function(id, file) {
var data = new FormData();
data.append('id', id);
data.append('file', file);
$http.post('multipleSave', data, {
transformRequest: function(data, headersGetterFunction) {
return data;
},
headers: {
'Content-Type': undefined
}
}).success(function(data) {
$log.debug("Upload Successfull");
$log.debug("File upload: Success calling ");
alert(data);
alert("hi");
}).error(function(error) {
$log.debug("Upload failure");
alert(error);
});
};
This is my Spring Controller code
#RequestMapping(value="/multipleSave", method = RequestMethod.POST)
public void UploadFile(MultipartHttpServletRequest request, HttpServletResponse response) {
Iterator<String> itr=request.getFileNames();
MultipartFile file=request.getFile(itr.next());
String fileName=file.getOriginalFilename();
System.out.println(fileName);
}
Content in the MultipartHttpServletRequest request is empty.

You should have encryption type set to multipart/form-data in your request headers.
$http.post('multipleSave', data, {
transformRequest: function(data, headersGetterFunction) {
return data;
},
headers: {
'Content-Type': undefined,
enctype:'multipart/form-data'
}
})

Related

How to POST binary files with AngularJS (with upload DEMO)

unable to send file with angular post call
I am trying to post .mp4 file with some data through ionic 1 with angular 1. While posting through POSTMAN it is fine and working. I am getting Success = false in my application.
in POSTMAN, no headers and data is bellow,
Service url with POST request http://services.example.com/upload.php
body in form data
j_id = 4124, type = text
q_id = 6, type = text
u_id = 159931, type = text
file = demo.mp4, type = file
in my app:
$rootScope.uploadQuestion = function () {
var form = new FormData();
form.append("j_id", "4124");
form.append("q_id", "6");
form.append("u_id", "159931");
form.append("file", $rootScope.videoAns.name); //this returns media object which contain all details of recorded video
return $http({
method: 'POST',
headers: { 'Content-Type': 'multipart/form-data' }, // also tried with application/x-www-form-urlencoded
url: 'http://services.example.com/upload.php',
// url: 'http://services.example.com/upload.php?j_id=4124&q_id=8&u_id=159931&file='+$rootScope.videoAns.fullPath,
// data: "j_id=" + encodeURIComponent(4124) + "&q_id=" + encodeURIComponent(8) + "&u_id=" + encodeURIComponent(159931) +"&file=" + encodeURIComponent($rootScope.videoAns),
data: form,
cache: false,
timeout: 300000
}).success(function (data, status, headers, config) {
if (status == '200') {
if (data.success == "true") {
alert('uploading...');
}
}
}).error(function (data, status, headers, config) {
});
}
RECOMMENDED: POST Binary Files Directly
Posting binary files with multi-part/form-data is inefficient as the base64 encoding adds an extra 33% overhead. If the server API accepts POSTs with binary data, post the file directly:
function upload(url, file) {
if (file.constructor.name != "File") {
throw new Error("Not a file");
}
var config = {
headers: {'Content-Type': undefined},
transformRequest: []
};
return $http.post(url, file, config)
.then(function (response) {
console.log("success!");
return response;
}).catch(function (errorResponse) {
console.error("error!");
throw errorResponse;
});
}
Normally the $http service encodes JavaScript objects as JSON strings. Use transformRequest: [] to override the default transformation.
DEMO of Direct POST
angular.module("app",[])
.directive("selectNgFiles", function() {
return {
require: "ngModel",
link: postLink
};
function postLink(scope, elem, attrs, ngModel) {
elem.on("change", function(event) {
ngModel.$setViewValue(elem[0].files);
});
}
})
.controller("ctrl", function($scope, $http) {
var url = "//httpbin.org/post";
var config = {
headers: { 'Content-type': undefined }
};
$scope.upload = function(files) {
var promise = $http.post(url,files[0],config);
promise.then(function(response){
$scope.result="Success "+response.status;
}).catch(function(errorResponse) {
$scope.result="Error "+errorRespone.status;
});
};
})
<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app="app" ng-controller="ctrl">
<input type="file" select-ng-files ng-model="files">
<br>
<button ng-disabled="!files" ng-click="upload(files)">
Upload file
</button>
<pre>
Name={{files[0].name}}
Type={{files[0].type}}
RESULT={{result}}
</pre>
</body>
Posting with 'Content-Type': 'multipart/form-data'
When posting data using the FormData API, it is important to set the content type to undefined:
function uploadQuestion(file) {
var form = new FormData();
form.append("j_id", "4124");
form.append("q_id", "6");
form.append("u_id", "159931");
form.append("file", file); //this returns media object which contain all details of recorded video
return $http({
method: 'POST',
headers: { 'Content-Type': undefined ̶'̶m̶u̶l̶t̶i̶p̶a̶r̶t̶/̶f̶o̶r̶m̶-̶d̶a̶t̶a̶'̶ }, // also tried with application/x-www-form-urlencoded
url: 'http://services.example.com/upload.php',
data: form,
̶c̶a̶c̶h̶e̶:̶ ̶f̶a̶l̶s̶e̶,̶
timeout: 300000
̶}̶)̶.̶s̶u̶c̶c̶e̶s̶s̶(̶f̶u̶n̶c̶t̶i̶o̶n̶ ̶(̶d̶a̶t̶a̶,̶ ̶s̶t̶a̶t̶u̶s̶,̶ ̶h̶e̶a̶d̶e̶r̶s̶,̶ ̶c̶o̶n̶f̶i̶g̶)̶ ̶{̶
}).then(function(response) {
var data = response.data;
var status = response.status;
if (status == '200') {
console.log("Success");
}
̶}̶)̶.̶e̶r̶r̶o̶r̶(̶f̶u̶n̶c̶t̶i̶o̶n̶ ̶(̶d̶a̶t̶a̶,̶ ̶s̶t̶a̶t̶u̶s̶,̶ ̶h̶e̶a̶d̶e̶r̶s̶,̶ ̶c̶o̶n̶f̶i̶g̶)̶ ̶{̶
}).catch(function(response) {
console.log("ERROR");
//IMPORTANT
throw response;
});
}
When the XHR API send method sends a FormData Object, it automatically sets the content type header with the appropriate boundary. When the $http service overrides the content type, the server will get a content type header without the proper boundary.

Calling method using $http Post in AngularJS

I am trying to call the method ProcessCriteria in AngularJS below but for some reason I am keep getting error message:
VM18010:1 POST http://example.com/api/TalentPool/ProcessCriteria 404
(Not Found)
Below is my Calling code:
var param = { 'Item': item.Key, 'SolrLabel': SolrLabel };
$http({
method: 'POST',
url: '/api/TalentPool/ProcessCriteria',
data: param
//headers: {
// 'Content-Type': 'application/x-www-form-urlencoded'
//}
}).then(function (response) {
// success
console.log('Facet Data Posted');
return response;
},
function (response) { // optional
// failed
console.log('facet post error occured!');
});
And my Server side method:
[System.Web.Http.HttpPost]
public IHttpActionResult ProcessCriteria(string Item, string SolrLabel)
{
var itm = Item;
var solr = SolrLabel;
return Ok();
}
Any suggestions please?
ASP.net cannot match your request in its Route Table because you have 2 parameters in your action and the router doesn't understand it.
it expects a data object that your parameters warp to this.
First of all, make a Model like it:
public class Criteria
{
public string Item { get; set; }
public string SolrLabel { get; set; }
}
then change your action:
[System.Web.Http.HttpPost]
public IHttpActionResult ProcessCriteria(Criteria criteria)
{
var itm = criteria.Item;
var solr = criteria.SolrLabel;
return Ok();
}
Update
and update your javaScript part with JSON.stringify:
var param = { 'Item': item.Key, 'SolrLabel': SolrLabel };
$http({
method: 'POST',
url: '/api/TalentPool/ProcessCriteria',
data: JSON.stringify(param)
//headers: {
// 'Content-Type': 'application/x-www-form-urlencoded'
//}
}).then(function (response) {
// success
console.log('Facet Data Posted');
return response;
},
function (response) { // optional
// failed
console.log('facet post error occured!');
});
You can create a class as said by in above answer and you can pass data in http post like this
var obj = {
url: url,
async: true,
method: 'POST',
headers: {
"content-type": "application/json; charset=utf-8",
}
};
if (typeof data != 'undefined' || typeof data != null) {
obj.data = data;
}
$http(obj).then(function(response){
},function(error){
});
I got i working, below is the code for others if they get stuck on it.
var pvarrData = new Array();
pvarrData[0] = JSON.stringify(item.Key);
pvarrData[1] = JSON.stringify(SolrLabel);
pvarrData[2] = JSON.stringify($localStorage.message);
$http({
method: 'POST',
url: '/api/TalentPool/ProcessCriteria',
data: JSON.stringify(pvarrData),
headers: { 'Content-Type': 'application/json' }
}).then(function (response) {
// success
console.log('Facet Data Posted');
return response;
},
function (response) {
// failed
console.log('facet post error occured!');
});

Angularjs Post method can not get the parameter in Spring MVC

I'm trying to use Angularjs to send a Post request to My Spring Mvc Controller to login User.But I can't get the Parameter from the request.
this is my Angular js code:
$scope.submit = function () {
$http({
url: serviceURL.LoginUrl,
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
},
data: {
phone: $scope.userName,
password: $scope.userPsw,
}
}).success(function (data) {
if (!data.state) {
alert(data.errorMsg);
} else {
alert('success');
}
console.log(data);
}).error(function (data) {
console.log('服务器错误!');
});
}
and this is the Spring MVC Controller code:
#RequestMapping(value = "/login", method = RequestMethod.POST)
#ResponseBody
public Object loginUser(Model model,User user, HttpSession session, HttpServletRequest request) {
String phone = request.getParameter("phone");
String password = request.getParameter("password");
System.out.println(phone+","+password);
System.out.println(user.getPhone()+","+user.getPassword());
UserDTO u = userService.loginUser(phone, password);
session.setAttribute("loginUser",u.getUser());
return u;
}
I have searched many resource,they said I should change the header and I have set the header:
#Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
return true;
}
Actually,I can't request the login url,but after I setHeader,I can request the url,but the parameter is null.
Forgive my poor English, I am newbie in StackOverFlow.
I didn't konw is it have the same question in here ,but I can find the same question. Thank you for your view.
There are two points to fix. At first, data should be converted to a URL-encoded string. You can convert data object with $.param() method or set params property instad of data so it will look like this:
$scope.submit = function () {
$http({
url: serviceURL.LoginUrl,
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
},
params: {
phone: $scope.userName,
password: $scope.userPsw,
}
}).success(function (data) {
if (!data.state) {
alert(data.errorMsg);
} else {
alert('success');
}
console.log(data);
}).error(function (data) {
console.log('服务器错误!');
});
}
The second point is server-side controller method. Here you have to annotate method's arguments appropriately. Consider using #RequestParam annotation.
#RequestMapping(value = "/login", method = RequestMethod.POST)
#ResponseBody
public Object loginUser(
#RequestParam String phone,
#RequestParam String password,
HttpSession session,
HttpServletRequest request
) {
System.out.println(phone + ", " + password);
UserDTO u = userService.loginUser(phone, password);
session.setAttribute("loginUser", u.getUser());
return u;
}
<!--In your script-->
var app = angular.module("myApp", [])
.controller("myController", function($http){
var vm= this;
Posting = function(name)
{
var data = 'name=' + name;
var url="example.htm";
$http.post(url, data).then(function (response) {
vm.msg = response.data;
alert(vm.msg);
});
}
});
// Above is same as using GET, but here below is important
//Dont forget to add this config ortherwise http bad request 400 error
app.config(['$httpProvider', function ($httpProvider) {
$httpProvider.defaults.headers.post['Content-Type'] =
'application/x-www-form-urlencoded; charset=UTF-8';
}]);
//In spring controller same as of GET Method
#RequestMapping(value="example.htm", method = RequestMethod.POST)
#ModelAttribute("msg")
public String doingPost(#RequestParam(value="name") String name){
System.out.println(name);
return "successfully Posted";
}

How to know the server response in web api

I am developing Web API in MVC with AngularJS for the first time and and I want to know how to show the response message in client side, to show to the user what is happening.
Here is my code:
public HttpResponseMessage Delete(int id)
{
Product prouct = new Product { Id = id };
HttpResponseMessage response = new HttpResponseMessage();
if (prouct != null)
{
db.Products.Attach(prouct);
db.Products.Remove(prouct);
if (db.SaveChanges() > 0)
{
response = Request.CreateResponse(HttpStatusCode.OK);
}
else
{
response = Request.CreateResponse(HttpStatusCode.NotFound);
}
}
return response;
}
$scope.DeleteProduct = function (ID) {
if (confirm("Are you sure to delete this product?")) {
$http({
url: 'http://localhost:52795/api/Test',
method: 'DELETE',
params: { Id: ID }
}).success(function (data, xhr, status) {
$scope.GetAllProducts();
console.log(data);
alert(status);
}).error(function (xhr, status) {
console.log(xhr, status);
alert( status);
})
}
}
Have you tried using $http().then() ?
$http({
url: 'http://localhost:52795/api/Test',
method: 'DELETE',
params: { Id: ID }
}).then(function successCallback(response) {
alert(response.data); // This represents the response
}, function errorCallback(response) {
// If some error has occured
});
For more about http requests read this
https://docs.angularjs.org/api/ng/service/$http

How to make Spring REST service to accept multipart file data sent by the Angular Controller?

I'm trying to post a file from Angular controller to the backend. But Spring REST controller is receiving null.
JS
myApp.controller('myCtrl', ['$scope', '$http', function($scope, $http){
$scope.uploadFile = function(){
var formData=new FormData();
formData.append("file", $scope.myFile);
alert("Hi");
$http({
method: 'POST',
url: 'upload',
headers: {'Content-Type': undefined},
data: formData,
transformRequest: function(data, headersGetterFunction) {
return data;
}
}).success(function(data, status) {
console.log('file is ' );
console.dir(data);
})
.error(function(data, status) {
});
}
}]);
Spring-REST Controller
#RequestMapping(value="/upload", method=RequestMethod.POST)
public #ResponseBody String upload(#RequestBody MultipartFile file) {
System.out.println(file);
}
I also tried with public #ResponseBody void uploadFile(MultipartHttpServletRequest request, HttpServletResponse response) but it's of no use. I have declared multipartResolver in the configuaration file too. Any Idea on this? I'm desperately looking for a solution.
Here is a piece of code that works for me:
Spring-REST Controller
#RequestMapping(value = "/api/users/{id}/image", method = RequestMethod.POST)
#ResponseBody
public boolean uploadUserImage( #PathVariable("id") Long id, #RequestParam("file") MultipartFile file ) {
return userService.saveUserImage(id, file);
}
and on the front-end you could do something like this
Angular Controller
//the image
$scope.uploadme;
$scope.uploadImage = function() {
var fd = new FormData();
var imgBlob = dataURItoBlob($scope.uploadme);
fd.append('file', imgBlob);
$http.post(
'/upload',
fd, {
transformRequest: angular.identity,
headers: {
'Content-Type': undefined
}
}
)
.success(function(response) {
console.log('success', response);
})
.error(function(response) {
console.log('error', response);
});
}
//you need this function to convert the dataURI
function dataURItoBlob(dataURI) {
var binary = atob(dataURI.split(',')[1]);
var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
var array = [];
for (var i = 0; i < binary.length; i++) {
array.push(binary.charCodeAt(i));
}
return new Blob([new Uint8Array(array)], {
type: mimeString
});
}
Assuming that the http request is correct the problem must be at the Spring controller. I think you have to change upload(#RequestBody MultipartFile file) to upload(#RequestParam("file") MultipartFile file). So it will be like this:
#RequestMapping(value="/upload", method=RequestMethod.POST)
#ResponseBody
public void upload(#RequestParam("file") MultipartFile file) {
System.out.println(file);
}
Also in your function you have it return String but you are not returning one. So i assume you are doing something else and you removed the code in order to post the question and missed the return, otherwise it wouldn't even build.
Lastly you could check this answer that i gave to a similar problem.

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