The request was rejected because no multipart boundary was found in springboot

2 min readDec 7, 2022

As I am trying this with spring boot and webservices with postman chrome add-ons.

In postman content-type="multipart/form-data" and I am getting the below exception.

HTTP Status 500 - Request processing failed; 
nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request;
nested exception is
org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was found

In Controller I specified the below code

@RequestMapping(value = "/file", headers = "Content-Type= multipart/form-data", method = RequestMethod.POST)
public String upload(@RequestParam("name") String name,
@RequestParam(value = "file", required = true) MultipartFile file)
//@RequestParam ()CommonsMultipartFile[] fileUpload
// @RequestMapping(value="/newDocument", , method = RequestMethod.POST)
if (!file.isEmpty()) {
try {
byte[] fileContent = file.getBytes();
fileSystemHandler.create(123, fileContent, name);
return "You successfully uploaded " + name + "!";
} catch (Exception e) {
return "You failed to upload " + name + " => " + e.getMessage();
} else {
return "You failed to upload " + name + " because the file was empty.";

Here I specify the file handler code

public String create(int jonId, byte[] fileContent, String name) {
String status = "Created file...";
try {
String path = env.getProperty("file.uploadPath") + name;
File newFile = new File(path);
BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(newFile));
} catch (IOException ex) {
status = "Failed to create file...";
Logger.getLogger(FileSystemHandler.class.getName()).log(Level.SEVERE, null, ex);
return status;

The solution is

The problem is that you are setting the Content-Type by yourself, let it be blank. Google Chrome will do it for you. The multipart Content-Type needs to know the file boundary, and when you remove the Content-Type, Postman will do it automagically for you.

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