Failed to parse multipart servlet request from express js server to backend java endpoint

问题

This is an extension to an issue with the front end(react->express file upload). The back end API endpoint works fine from Postman but fails from the front end side

Unable to send the multi part form data from React to Express Js correctly

Any thoughts on this?

Browser network tab - Headers

Request URL: http://localhost:8080/sendMyUserData
Referrer Policy: strict-origin-when-cross-origin
Accept: application/json, text/plain, */*
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,te;q=0.8
Authorization:mytoken
Connection: keep-alive
Content-Length: 83474
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryvooZbILex2ARkOrs
Cookie: Host: localhost:8080
Origin: http://localhost:8080
Referer: http://localhost:8080/sendDocument
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.114 Safari/537.36
------WebKitFormBoundaryvooZbILex2ARkOrs
Content-Disposition: form-data; name="userName"

TestUser
------WebKitFormBoundaryvooZbILex2ARkOrs
Content-Disposition: form-data; name="files"; filename="Xyz.pdf"
Content-Type: application/pdf


------WebKitFormBoundaryvooZbILex2ARJOrs--

my spring boot API endpoint

@PostMapping(path = "/sendMyUserData", consumes = { MediaType.MULTIPART_FORM_DATA_VALUE })
public String uploadMyUserData(@RequestPart(value = "files") final MultipartFile[] multipartFiles, @RequestPart(value = "userName") String userName ) {
return myService.storeFiles(multipartFiles, userName));

Error at the back end API endpoint

[Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadException: java.net.SocketTimeoutException] 

来源：https://stackoverflow.com/questions/65984754/failed-to-parse-multipart-servlet-request-from-express-js-server-to-backend-java