We Keep Coding

How to solve MissingServletRequestPartException inSpring upload

I am having a problem uploading picture in Spring. I have encountered countless problems, which i have tried to solve. For my current error i have tried all the solution provide by spring but it still persist. According to spring the issue of MissingServletRequestPartException can be solved by including a MultipartResolver.`http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/multipart/support/MissingServletRequestPartException.html. I have done that (find below), but the issue still persist.
Error
timestamp: 1490599131962, status: 400, error: "Bad Request",…}
error:"Bad Request"
exception:"org.springframework.web.multipart.support.MissingServletRequestPartException"
message:"Required request part 'uploadfile' is not present"
path:"/uploadFile"
Config
#Bean(name = "multipartResolver")
public CommonsMultipartResolver multipartResolver() {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(100000);
return new CommonsMultipartResolver();
}
Controller
public ResponseEntity<?> uploadFile(#RequestParam("uploadfile") MultipartFile uploadfile, Picture picture, Principal principal, MultipartHttpServletRequest request) {
User user = (User) ((UsernamePasswordAuthenticationToken) principal).getPrincipal();
picture.setUser(user);
Iterator<String> itrator = request.getFileNames();
MultipartFile multiFile = request.getFile(itrator.next());
try {
System.out.println("File Length:" + multiFile.getBytes().length);
System.out.println("File Type:" + multiFile.getContentType());
// Crop the image (uploadfile is an object of type MultipartFile)
BufferedImage croppedImage = cropImageSquare(multiFile.getBytes());
String fileName=multiFile.getOriginalFilename();
System.out.println("File Name:" +fileName);
String path=request.getServletContext().getRealPath("/");
// Get the filename and build the local file path
File directory= new File(path+ "/uploads");
directory.mkdirs();
String filename = uploadfile.getOriginalFilename();
String ext = FilenameUtils.getExtension(filename);
File outPutFile = new File(directory.getAbsolutePath()+System.getProperty("file.separator")+picture.getUploadfile());
ImageIO.write(croppedImage, ext, outPutFile);
} catch (Exception e) {
System.out.println(e.getMessage());
return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
}
pictureService.save(picture, uploadfile);
return new ResponseEntity<>(HttpStatus.ACCEPTED);
}
JS FILE
'use strict';
var $formUploader = $("#upload-file-input");
$formUploader.on("submit", function(e){
e.preventDefault();
var data = new FormData(this);
$.each($formUploader.serializeArray(), function(i, field) {
data[field.name] = field.value;
});*/
$.ajax({
//dataType: 'json',
url: $formUploader.prop('action'),
type: "POST",
//data: new FormData($("#upload-file-input")[0]),
data: data,
enctype: 'multipart/form-data',
processData: false,
contentType: false,
cache: false,
success: function (data) {
console.log(data);
// Handle upload success
$("#upload-file-message").text("File succesfully uploaded");
},
error: function (response) {
console.log(response);
// Handle upload error
$("#upload-file-message").text("File not uploaded (File might be big, size needed.)");
}
});
});
Form
<form id="upload-file-input" th:action="#{/uploadFile}" method="post" th:object="${picture}"
enctype="multipart/form-data" class="form-inline inline new-item">
<div th:replace="common/layout :: flash"></div>
<fieldset>
<legend> Upload Picture</legend>
<div class="row">
<div class="col s12 l8">
<div class="file-wrapper">
<input type="file" id="file" name="uploadfile" />
<span class="placeholder" data-placeholder="Choose an image...">Choose an image...</span>
<label for="file" class="button">Browse</label>
<span id="upload-file-message"></span>
</div>
</div>
<button type="submit" class="btn btn-primary">Upload</button>
</div>
</fieldset>
<div class="style16"></div>
</form>

You added all form values into the FormData, but didn't add a content of file. That's how it can be done:
...
var data = new FormData(this);
$.each($formUploader.serializeArray(), function(i, field) {
data[field.name] = field.value;
});
//next line will add content of file
data.append('fileContent', $('#file').files[0]);
$.ajax({ ...
You can use any name instead of fileContent, it doesn't matter.
In case when user enables to select multiple files at once, you have to add contents of all of this files:
...
var data = new FormData(this);
$.each($formUploader.serializeArray(), function(i, field) {
data[field.name] = field.value;
});
$.each($('#file').files, function(i, file) {
formData.append('fileContent' + i, file);
});
$.ajax({ ...

file and form upload at the same time using ajax in java web [duplicate]

I'm creating a JSP/Servlet web application and I'd like to upload a file to a servlet via Ajax. How would I go about doing this? I'm using jQuery.
I've done so far:
<form class="upload-box">
<input type="file" id="file" name="file1" />
<span id="upload-error" class="error" />
<input type="submit" id="upload-button" value="upload" />
</form>
With this jQuery:
$(document).on("#upload-button", "click", function() {
$.ajax({
type: "POST",
url: "/Upload",
async: true,
data: $(".upload-box").serialize(),
contentType: "multipart/form-data",
processData: false,
success: function(msg) {
alert("File has been uploaded successfully");
},
error:function(msg) {
$("#upload-error").html("Couldn't upload file");
}
});
});
However, it doesn't appear to send the file contents.

To the point, as of the current XMLHttpRequest version 1 as used by jQuery, it is not possible to upload files using JavaScript through XMLHttpRequest. The common workaround is to let JavaScript create a hidden <iframe> and submit the form to it instead so that the impression is created that it happens asynchronously. That's also exactly what the majority of the jQuery file upload plugins are doing, such as the jQuery Form plugin (an example).
Assuming that your JSP with the HTML form is rewritten in such way so that it's not broken when the client has JavaScript disabled (as you have now...), like below:
<form id="upload-form" class="upload-box" action="/Upload" method="post" enctype="multipart/form-data">
<input type="file" id="file" name="file1" />
<span id="upload-error" class="error">${uploadError}</span>
<input type="submit" id="upload-button" value="upload" />
</form>
Then it's, with the help of the jQuery Form plugin, just a matter of
<script src="jquery.js"></script>
<script src="jquery.form.js"></script>
<script>
$(function() {
$('#upload-form').ajaxForm({
success: function(msg) {
alert("File has been uploaded successfully");
},
error: function(msg) {
$("#upload-error").text("Couldn't upload file");
}
});
});
</script>
As to the servlet side, no special stuff needs to be done here. Just implement it exactly the same way as you would do when not using Ajax: How can I upload files to a server using JSP/Servlet?
You'll only need an additional check in the servlet if the X-Requested-With header equals XMLHttpRequest or not, so that you know how what kind of response to return for the case that the client has JavaScript disabled (as of now, it is mostly the older mobile browsers which have JavaScript disabled).
if ("XMLHttpRequest".equals(request.getHeader("X-Requested-With"))) {
// Return an Ajax response (e.g. write JSON or XML).
} else {
// Return a regular response (e.g. forward to JSP).
}
Note that the relatively new XMLHttpRequest version 2 is capable of sending a selected file using the new File and FormData APIs. See also HTML5 drag and drop file upload to Java Servlet and Send a file as multipart through XMLHttpRequest.

Monsif's code works well if the form has only file type inputs. If there are some other inputs other than the file type, then they get lost. So, instead of copying each form data and appending them to FormData object, the original form itself can be given to the constructor.
<script type="text/javascript">
var files = null; // when files input changes this will be initialised.
$(function() {
$('#form2Submit').on('submit', uploadFile);
});
function uploadFile(event) {
event.stopPropagation();
event.preventDefault();
//var files = files;
var form = document.getElementById('form2Submit');
var data = new FormData(form);
postFilesData(data);
}
function postFilesData(data) {
$.ajax({
url : 'yourUrl',
type : 'POST',
data : data,
cache : false,
dataType : 'json',
processData : false,
contentType : false,
success : function(data, textStatus, jqXHR) {
alert(data);
},
error : function(jqXHR, textStatus, errorThrown) {
alert('ERRORS: ' + textStatus);
}
});
}
</script>
The HTML code can be something like following:
<form id ="form2Submit" action="yourUrl">
First name:<br>
<input type="text" name="firstname" value="Mickey">
<br>
Last name:<br>
<input type="text" name="lastname" value="Mouse">
<br>
<input id="fileSelect" name="fileSelect[]" type="file" multiple accept=".xml,txt">
<br>
<input type="submit" value="Submit">
</form>

$('#fileUploader').on('change', uploadFile);
function uploadFile(event)
{
event.stopPropagation();
event.preventDefault();
var files = event.target.files;
var data = new FormData();
$.each(files, function(key, value)
{
data.append(key, value);
});
postFilesData(data);
}
function postFilesData(data)
{
$.ajax({
url: 'yourUrl',
type: 'POST',
data: data,
cache: false,
dataType: 'json',
processData: false,
contentType: false,
success: function(data, textStatus, jqXHR)
{
//success
},
error: function(jqXHR, textStatus, errorThrown)
{
console.log('ERRORS: ' + textStatus);
}
});
}
<form method="POST" enctype="multipart/form-data">
<input type="file" name="file" id="fileUploader"/>
</form>

This code works for me.
I used Commons IO's io.jar, Commons file upload.jar, and the jQuery form plugin:
<script>
$(function() {
$('#upload-form').ajaxForm({
success: function(msg) {
alert("File has been uploaded successfully");
},
error: function(msg) {
$("#upload-error").text("Couldn't upload file");
}
});
});
</script>
<form id="upload-form" class="upload-box" action="upload" method="POST" enctype="multipart/form-data">
<input type="file" id="file" name="file1" />
<span id="upload-error" class="error">${uploadError}</span>
<input type="submit" id="upload-button" value="upload" />
</form>
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
// Create a factory for disk-based file items
FileItemFactory factory = new DiskFileItemFactory();
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
try {
// Parse the request
List items = upload.parseRequest(request);
Iterator iterator = items.iterator();
while (iterator.hasNext()) {
FileItem item = (FileItem) iterator.next();
if (!item.isFormField()) {
String fileName = item.getName();
String root = getServletContext().getRealPath("/");
File path = new File(root + "../../web/Images/uploads");
if (!path.exists()) {
boolean status = path.mkdirs();
}
File uploadedFile = new File(path + "/" + fileName);
System.out.println(uploadedFile.getAbsolutePath());
item.write(uploadedFile);
}
}
} catch (FileUploadException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}

Upload image without redirection Spring MVC

I am able to upload file just fine, I just would like to prevent redirecting. That is obviously done by AJAX form submit, but I still end up in the controller which then redirects me.
My Controller:
#RequestMapping(method=RequestMethod.POST)
public void handleFileUpload(#RequestParam("name") String name,
#RequestParam("file") MultipartFile file){
if (!file.isEmpty()) {
try {
byte[] bytes = file.getBytes();
BufferedOutputStream stream =
new BufferedOutputStream(new FileOutputStream(new File(name)));
stream.write(bytes);
stream.close();
//return new ModelAndView("redirect:register");
} catch (Exception e) {
//return new ModelAndView("redirect:register");
}
} else {
//return new ModelAndView("redirect:register");
}
}
JSP part:
<script>
$('fileUploadForm').submit(function (e) {
$.ajax({
url: '${home}upload',
data: $('fileUploadForm').serialize(),
processData: false,
type: 'POST',
success: function (data) {
alert(data);
}
});
e.preventDefault();
});
</script>
<form id ="fileUploadForm" method="POST" action="upload?${_csrf.parameterName}=${_csrf.token}" enctype="multipart/form-data">
File to upload: <input type="file" name="file">
Name:
<input type="text" name="name">
<input type="submit" value="Upload"> Press here to upload the file!
</form>

If your controller is not Restfull then you need to indicate to the method that its a restfull call.
Try the below fix.
#RequestMapping(method=RequestMethod.POST)
#ResponseBody // add this
public void handleFileUpload(#RequestParam("name") String name, #RequestParam("file") MultipartFile file) {}

How to check if form was submitted in Java

I have a form in jsp:
<form id="emailForm" data-role="form">
<input type="text" class="form-control" id="name" name="name" placeholder="Enter full name..">
<input type="submit" id="emailSubmit" name="emailSubmit" class="btn btn-default" value="submit">
</form>
I send the form to controller using AJAX:
$("#emailSubmit").click(function(e){
e.preventDefault(); //STOP default action
var postData = $("#emailForm").serializeArray();
$.ajax(
{
type: "POST",
url : "HomeController",
data : postData,
success: function(data)
{
$("#emailResult").html("<p>Thank your for submitting</p>);
},
error: function(jqXHR, textStatus, errorThrown)
{
$("#emailResult").html("<p>ss"+errorThrown+textStatus+jqXHR+"</p>");
}
});
});
I check if it has been submitted in Controller here:
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String emailSubmit = request.getParameter("emailSubmit");
if(emailSubmit != null){
// continue
}}
Can someone please tell me why when it checks if form was submitted in the controller that it is null?

For forms the standard way is to catch the submit event instead of the click event of the button:
$("#emailForm").submit(function(e){
e.preventDefault();
var postData = $(this).serializeArray(); // or: $(this).serialize();
$.ajax({
type: "POST",
url : "HomeController",
data : postData,
success: function(data)
{
$("#emailResult").html("<p>Thank your for submitting</p>);
},
error: function(jqXHR, textStatus, errorThrown)
{
$("#emailResult").html("<p>ss"+errorThrown+textStatus+jqXHR+"</p>");
}
});
});

I have tried several methods to be able to check the submit button isn't null and can't solve that issue. For now I have set a hidden input field in the form like so:
<input type="hidden" name="form" value="contactForm">
In controller I check for the form:
String form = request.getParameter("form");
if(form.equals("contactForm")){
// continue
}
Doing this enables me to know which form has been posted to the controller.

How to send file using javascript

I am trying to make an upload page which takes file to upload. I am using Spring framework here my query is on Upload button I am calling a JavaScript method which should send my file to controller using jQuery AJAX. Is there any way to pass this through JavaScript?
Following is the code which I am trying.
<body>
<div style="text-align: center; margin-top: 60px;">
<form enctype="multipart/form-data">
Select file:
<input type="file" name="dataFile" id="fileAttachment"/><br/><br/>
<div style="text-align: center; margin-top: 100px;">
<input style="cursor: pointer;" onmouseover="" onclick="uploadAttachment()" class="dialogbox" type="submit" value="Upload Report" />
</div>
</form>
</div>
</body>
JS:
<script language="Javascript">
function uploadAttachment(){
var Name = jQuery('#Name option:selected').text();
jQuery.post('upload',{Name:Name}
function(data){
if(data==1)
alert("success");
else
alert("failed");
});
}
</script>
on controller.java page following is the code written
#RequestMapping(value = "upload", method=RequestMethod.POST)
public #ResponseBody String upload(HttpServletRequest request, HttpServletResponse response,
#RequestParam("Name") String Name){
System.out.println(Name);
}

If you are in fact seeking a pure javascript way to upload an image/file, then the following tutorial from 2009 will tell you exactly how to do that:
http://igstan.ro/posts/2009-01-11-ajax-file-upload-with-pure-javascript.html
I ran into this when I wanted to add basic-authentication to a form submission, without enabling cookies. E.g. when you have username/password fields with your filename, file, etc fields.
Hope this helps!

I think you can try the following code to upload file with javascript.
function uploadAttachment(){
$('#fileAttachment').trigger('click');
if (typeof timer != 'undefined') {
clearInterval(timer);
}
timer = setInterval(function() {
if ($('#fileAttachment').val() != '') {
clearInterval(timer);
$.ajax({
url: 'YOUR_UPLOAD_URL',
type: 'post',
dataType: 'json',
data: new FormData($('#fileAttachment').closest('form')[0]),
cache: false,
contentType: false,
processData: false,
success: function(response){
}
});
}
}, 500);
}
You need to replace YOUR_UPLOAD_URL with your server upload URL.