Spring MVC - Hit to URL with RequestParam failing with 404 Not Found Error - spring

Question

I am using Spring MVC in my project and while mapping user request to a URI, I get the 404 error. Here is my function skeleton which I want to be invoked:
#RequestMapping(value="/inventory/discovery", method = RequestMethod.GET, params = {"discoveryType"}, produces = {"application/json"})
public String getDiscoveryByType(#RequestParam("discoveryType") String discoveryType)
{
return discoveryType;
}
I am expecting this method to be called when I give the URL
http://<some-ip>/inventory/discovery/discoveryType?=DMVPN
However, when I test the code using Chrome's Advanced Rest Client I see that the URI it is trying to access is "/inventory/DMVPN" and not the "/inventory/discovery?discoveryType=DMVPN".
Am I missing something here? I don't see anything wrong with my URL syntax
I have another function in my code (but I don't think it is causing the problem) which has same request-mapping value, but has no params attribute.
#RequestMapping(value = "/inventory/discovery", method = RequestMethod.GET, produces = { "application/json" })
public ResponseEntity<DiscoveryNIOListResult> getAllDiscovery() {
logger.trace("getAllDiscovery");
List<DiscoveryNIO> listDiscoveryNIO = discoveryDasClient.getDiscoveryList();
DiscoveryNIOListResult result = new DiscoveryNIOListResult();
result.setResponse(listDiscoveryNIO);
return new ResponseEntity<DiscoveryNIOListResult>(result, HttpStatus.OK);
}

Answer 1

Ok, so a second look at your URL:
http://<some-ip>/inventory/discovery/discoveryType?=DMVPN
This is NOT passing discoveryType as a request GET parameter. For that you would need to do:
http://<some-ip>/inventory/discovery&discoveryType?=DMVPN
If you want to use path variables instead, you could do something like:
http://<some-ip>/inventory/discovery/DMVPN
And change your handler to something like:
#RequestMapping(value="/inventory/discovery/{discoveryType}", method = RequestMethod.GET, produces = {"application/json"})
public String getDiscoveryByType(#PathVariable("discoveryType") String discoveryType)
{
return discoveryType;
}
It looks like you were trying to mix these two methods, and that wont work.

Answer 2

Try changing your URL to:
http://<some-ip>/inventory/discovery?discoveryType=DMVPN