Spring - is possible to give same url in request mapping of post method?

Question

Is that possible to use same url in request mapping for two different post method, only request body differs.

Answer 1

No, you can't give same url in request mapping of post method having different request body type but same media type. Below won't work:

  @PostMapping(path = "/hello", consumes = MediaType.APPLICATION_JSON_VALUE)
  public String hello(@RequestBody Pojo1 val) {
    return "Hello";
  }

  @PostMapping(path = "/hello", consumes = MediaType.APPLICATION_JSON_VALUE)
  public String hello(@RequestBody Pojo2 val) {
    return "Hello";
  }

If you have different media type, then it will. Below will work:

  @PostMapping(path = "/hello", consumes = MediaType.APPLICATION_JSON_VALUE)
  public String hello(@RequestBody Pojo val) {
    return "Hello";
  }

  @PostMapping(path = "/hello", consumes = MediaType.TEXT_PLAIN_VALUE)
  public String hello(@RequestBody String val) {
    return "Hello";
  }

Your RequestMapping should differ on at least one of the conditions; path,method,params,headers,consumes,produces