Sending an AJAX request with a file in a form using Java and FormData

I've been encountering a persistent error 415 whenever I try to send a post request to the server, despite trying numerous solutions without success.

Here is my JavaScript code:

var form = $('form')[0];
var formData = new FormData(form);
    $.ajax({
       method: "POST",
       url: "./signup",
       data: formData,
       enctype: 'multipart/form-data',
       cache: false,
       contentType: false,
       processData: false,
       success : function(data) {
           //...
       },
       error : function(qXHR, textStatus, errorThrown){
           console.log(errorThrown, "Error " + qXHR.status);
       }
    });

And here is the HTML code snippet:

<form id="signup-form" action="#">
  <div class="form-group">
    <label>First Name</label>
    <input name="firstName" type="text" id="firstName">
  </div>
  <div class="form-group">
    <label>Surname</label>
    <input name="surname" type="text" id="surname">
  </div>
  <div class="form-group">
    <label>File</label>
    <input type="file" name="attachFile" id="attachFile">
   </div>
 </div>
 <input type="submit" id="btn-submit-signup value="Submit">
</form>

In addition, I have the following Java code:

//controller header
@RequestMapping(value = "/signup", headers = "content-type=multipart/*", method = RequestMethod.POST)
    public @ResponseBody Response<String> signup(@RequestBody UserSignup details) 



//UserSignup
public class UserSignup {
    private String firstName;
    private String surname;
    private MultipartFile attachFile;

    public UserSignup(){}

    //getters and setters...
}

Does anyone know what could be causing this issue?

Answer №1

If you need help handling file uploads with Spring, check out this helpful guide:

For a quick example taken from the guide:

Controller

@Controller
public class FileUploadController {

    @PostMapping("/signup")
    public String handleFileUpload(@RequestParam("file") MultipartFile file,
            RedirectAttributes redirectAttributes) {
        storageService.store(file);
        redirectAttributes.addFlashAttribute("message",
            "You successfully uploaded " + file.getOriginalFilename() + "!");

        return "redirect:/";
    }
}

Form

<form id="signup-form" method="POST" enctype="multipart/form-data" action="/">
    <table>
        <tr><td>File to upload:</td><td><input type="file" name="file" /></td></tr>
        <tr><td></td><td><input type="submit" value="Upload" /></td></tr>
    </table>
</form>

Ajax

$.post("./signup", $("#signup-form").serialize());

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

JPA versus JavaBeans validation (JSR 303) versus our custom approach: Automatically truncating fields prior to persistence

Being new to JPA and JSR 303, I have encountered a situation where some fields in the database have fixed lengths. It seems that JPA prevents me from persisting an entity with a field size larger than allowed in the database, while using the @Column annota ...

The getFilePath method in the FilePart API is not functioning correctly as anticipated

Currently, I am developing a web-based application using servlets and JSPs. One of the requirements I have is to retrieve the path of a file that has been uploaded within the application. Previously, the existing code utilized the following snippet to ext ...

Encountering the error message: "Received SQLiteException stating that there is no existing column named _id: , during compilation" despite having an _id column present

I am encountering a persistent exception every time I run my application. I am uncertain about the root cause of this issue. Here is some context to help understand the situation: The global attributes in my code include: public static final String KE ...

What are the steps for importing Apache Jena into Visual Studio Code?

Starting my journey with Jena and semantic technologies through a class, I am faced with a decision. While the instructor advises using Eclipse as the IDE, I am inclined towards using Visual Studio Code. How can I successfully import apache.jena into Visua ...

Manipulate a substring within a Java string by specifying the starting and ending indexes

Assume I have the sequence 123456789. It is clear that I need to update indexes 3-5 of the sequence (4, 5, and 6). Please note that the replacement may not be exactly 3 characters long. Ultimately, I might desire 123foobar789. How can this modification be ...

"The z-index of Flexslider's navigation feature is not functioning properly

Flexslider is functioning well on my website. However, I wanted it to slide under a navigation bar so I adjusted its margin-top to -75px and its div.flexslider z-index to -2. The result looks great, but now the next/prev arrows don't animate in and th ...

Vue.js bootstrap-vue input number has a unique MaxLength feature that sets the

Is there a way to limit the input length for an input field from bootstrap-vue? I tried using maxLength, but it seems that it's not supported based on their documentation. If I remove type="number", the limitation works, but then it won't restric ...

Calling Java Method in Kotlin with a Parameter List

Is it possible to invoke a Java method from Kotlin code? val list: List<String> = emptyList() repository.find(list) // this request is directed to a java component There seems to be a type mismatch issue highlighted by IntelliJ: Type mismatch. ...

JQuery is unable to detect the response from PHP's echo statement

Receiving an 'ok' message from a PHP script through a JQuery ajax call has become quite the challenge for me. I am able to successfully display the correct message in the console when I log it, but for some reason, the corresponding jQuery funct ...

Encountering a 405 error while attempting to use WCF in conjunction with JSON

Attempting to create a WCF service that can handle JSON data for use in AJAX calls. Facing an issue where a 405 (Method Not Allowed) error occurs when trying to call the service from JavaScript. It appears that the server responds with this status code due ...

Discovering the fewest amount of paper currency and their corresponding values needed to reach a specified sum in an array

When attempting to retrieve the value 2316, the result is [0,2,0,3,0,0,2,1,0,1] instead of the expected output [0,2,0,3,0,0,1,1,0,1]. It seems like there may be an issue with the algorithm I am using. function findNoteAndCoins(salary) { var note = [50 ...

I am encountering difficulties in initializing the browser with Selenium

Here is my code : import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; public class FirstAutomation { public static void main(String[] args) { System.setProperty("webdriver.chrome.driver", "C:\\Use ...

Determine the data type of a string without needing to convert it

Can you determine if a value is numeric without casting it? For example, how can you differentiate between 'abc' and '123' without converting them to a specific data type? While visually apparent that 'abc' is not numeric, t ...

What is the best way to display the database entry when I click on the thumbnail image?

I have a small image: <% @books.each do |book| %> <div class="thumbnail"> <div class="cash"> <div class="triangle"></div> <p><%= book.price %> <img class="azn" src="<%= asset_ ...

What is the best way to remove a listview item for good?

I am facing an issue with my code. After deleting a listview item, it re-appears when I reload the list. How can I delete the item permanently? Any suggestions would be greatly appreciated. Snippet for deleting the listview item : b2.setOnClickListener( ...

Verifying API access with custom settings using the got module

I'm having some trouble with a basic API call that requires authentication using the got library. I tried using the options parameter to pass my username and password, but I keep getting an HTTPerror. Could someone please review my usage of the optio ...

Comparison of performance between Synchronous and Immediate Asynchronous execution in benchmarking

Curious about the performance differences between synchronous and asynchronous data conversions, particularly in a scenario where an async function would return results immediately, I decided to conduct a simple benchmark test. const { performance } = req ...

Trigger a jQuery event when a particular element has finished loading

Is there a way to globally detect when any element (such as textarea) is displayed on the page in order to perform a specific action? The element could also be added dynamically through an AJAX request. // This code snippet is just an illustration of the ...

What is causing the issue with the variable in the CSS code?

I established a var variable called --item-width in JavaScript. I assumed it would function correctly in the CSS, but unfortunately, it's not working as intended. What steps should I take next? Being a novice, I probably made a mistake somewhere. Your ...

Is there a way to generate a ProfileView for every user simply by clicking on their username in Vaadin 23?

Let's dive into the technical details: Currently, I am coding in Java using IntelliJ, along with Springboot and Vaadin23 for a Web Application Project. The project involves a movie database and a user social network, essentially a platform for rating ...