How to use request and path parameters in a Spring Boot REST controller?

Question

I have the following upload controller which has two params with DIFFERENT type: 1 is for the path the file will be saved to and 2 the file itself. I'm looking for the correct method definition instead of 2 @Requestparam which give error in STS.

@PostMapping("/{path}/")
public String handleFileUpload(@RequestParam("path"), @RequestParam("file") MultipartFile file,
        RedirectAttributes redirectAttributes) {
    
    filesStorageService.store(file);
    redirectAttributes.addFlashAttribute("message", "You successfully uploaded " + file.getOriginalFilename() + "!");
    
    return "redirect:/";
}

for path you can use @PathVariable("path") String path as parameter — satya-p91
– satya-p91, Commented Jul 6, 2021 at 5:39

Gregor Zurowski · Accepted Answer · 2021-07-06 05:51:04Z

7

You need to use the @PathVariable annotation for the path parameter and add an additional argument (String path) to store it:

@PostMapping("/{path}/")
public String handleFileUpload(
   @PathVariable("path") String path,
   @RequestParam("file") MultipartFile file,
   RedirectAttributes redirectAttributes) {
   [...]

answered Jul 6, 2021 at 5:51

Gregor Zurowski

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