Before marking this as duplicate, just wanted you guys to know I have checked out the question posted here: What is the difference between @PathParam and @PathVariable
Thing is, if the usage of PathParam and PathVariable are same (only that one is from the JAX-RS API and one is provided by Spring), why is it that using one gives me null and the other gives me the proper value?
I am using Postman to invoke the service as: http://localhost:8080/topic/2
(I'm very new to SpringBoot)
Using PathParam :
import javax.websocket.server.PathParam;
import org.apache.tomcat.util.json.ParseException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class TopicController {
@Autowired
TopicService topicService;
@RequestMapping(method=RequestMethod.GET,path="/topic/{id}")
public Topic getById(@PathParam("id") long id) throws ParseException {
return topicService.getTopicById(id); //-- here id comes as null (when id is declared as a wrapper type - Long, else it throws an error)
}
}
Using PathVariable:
@RestController
public class TopicController {
@Autowired
TopicService topicService;
@RequestMapping(method=RequestMethod.GET,path="/topic/{id}")
public Topic getById(@PathVariable("id") long id) throws ParseException {
return topicService.getTopicById(id); //-- here id comes as 2
}
}
