Rest endpoint mapped with @PathVariables separated by comma

Question

I have @RestController with @RequestMapping("/api/my-resource"). I have @GetMapping for extracting certain entity.

@GetMapping(value = "/{firstId},{secondId}")
public ResponseEntity<MyResourceDTO> findMyResource(
                      @PathVariable Long firstId, @PathVariable String secondId) {

    //here I have firstId == null and secondId == null
}

If I replace , with / everything works fine, but the requirement is not to use another /.

I can confirm, that I can enter this method, but both @PathVariables are mapped to null. Does Spring support this kind of mapping? What have I done wrong?

I would like to achieve something similar to this, but I must use Spring.

Edit:

I have seen the solution with List but I don't want to use it, as the ids are of different type, so it's not a duplicate. I'm using <spring.version>4.3.6.RELEASE</spring.version>

Answer 1

With your current Spring version, you can try using _ as the delimiter and it should work fine.

I read this once in a Spring Documentation, but can't find the link right now, will add it as soon as I find it.