Spring Boot Rest : Error 404 not found when posting JSON via Postman - rest

Question

I am trying to invoke a POST service via Postman. My application is running on embedded tomcat server. However when I try to invoke the service, the error I get is "No mapping found for HTTP request with URI [/findrouting] in DispatcherServlet with name 'dispatcherServlet'"
It is not even recognizing http:localhost:8080/
RoutingRequest and RoutingResponse are the POJOs with getters and setters.
Am I missing something here. I did check lots of examples but didn't find any solution to my problem.
Please see my code below :
package com.ab.hello.ambassador.server;
import java.util.Arrays;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(AmbassadorApplication.class, args);
System.out.println("List of Beans instantiated");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
System.out.println(beanName);
}
}
}
package com.ab.hello.ambassador.server.controller;
import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
import static org.springframework.web.bind.annotation.RequestMethod.POST;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.dp.connect.ambassador.server.RoutingRequest;
import com.dp.connect.ambassador.server.RoutingResponse;
#RestController
public class ApplicationController {
#RequestMapping("/")
public String index() {
return "Spring Boot POC Welcomes You!";
}
#RequestMapping(method = POST, value = "/findrouting", consumes = { APPLICATION_JSON_VALUE }, produces = {
APPLICATION_JSON_VALUE })
public RoutingResponse findRoute(#RequestBody RoutingRequest request) throws Exception {
// some business logic that would return response; as of now I have set it to null
RoutingResponse response = null;
return response;
}
}

Answer 1

Thanks for your time. After struggling for quite a long time. I figured out this piece of code. Added annotation #EnableWebMvc. This solved my problem.
#SpringBootApplication
#EnableWebMvc
public class Application extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}

Answer 2

Try to define the path in your controller:
#RestController
#RequestMapping("/")
public class ApplicationController {
#RequestMapping
public String index() {
return "Spring Boot POC Welcomes You!";
}
#RequestMapping(method = POST, value = "/findrouting", consumes = { APPLICATION_JSON_VALUE }, produces = {
APPLICATION_JSON_VALUE })
public RoutingResponse findRoute(#RequestBody RoutingRequest request) throws Exception {
// some business logic that would return response; as of now I have set it to null
RoutingResponse response = null;
return response;
}
}

Answer 3

Change the below line
ApplicationContext ctx = SpringApplication.run(AmbassadorApplication.class, args);
with
ApplicationContext ctx = SpringApplication.run(Application.class, args);

Answer 4

according to spring docs , seems need to Override a config method:
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}