Disable spring boot multipart upload by controller

Question

I am using spring boot for uploading files. The files sizes are usually about 2GB and we cannot use the default spring boot StandardServletMultipartResolver or

Answer 1

If you enable resolve-lazily, the result is exactly what I think you're asking for.

spring.servlet.multipart.enabled = true
spring.servlet.multipart.resolve-lazily = true

Now you can write controllers with either form of signature.

Pre-parsing by the built-in multipart resolver...

@PostMapping("/upload1")
public ResponseEntity postUpload1(
    @RequestParam("metadata") MultipartFile metadata,
    @RequestParam("payload") MultipartFile payload)

Or post-parsing (which you can parse yourself)...

@PostMapping(path = "/upload2", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public ResponseEntity postUpload2(HttpServletRequest rawRequest)