Spring REST Controller not mapped

Question

I'm trying to create à Rest controller that listen on "/login" I have defined the code bellow but when I open http://localhost:8080/login I get a 404 error... Please help :)

Here is my package structure:

com.my.package
   |_ Application.java
   |_ controller
          |_ LoginController

My Application:

@ComponentScan("com.my.package.controller")
@SpringBootApplication
public class Application {
    public static void main(String[] args){
        SpringApplication.run(Application.class, args);
    }
}

My Rest controller:

@RestController
public class LoginController {

    @RequestMapping("/login")
    public @ResponseBody String getLogin(){
        return "{}";
    }
}

You need `@Configuration` on your `Application` class (or trade all of the annotations for `@SpringBootApplication`). — chrylis -cautiouslyoptimistic-, Oct 20 '16 at 18:51
What packages are everything in? Can you confirm in the logs whether a mapping for `/login` is being registered? — chrylis -cautiouslyoptimistic-, Oct 20 '16 at 19:18
can you paste stack trace in console when you access the url — kuhajeyan, Oct 21 '16 at 06:49
Does this answer your question? [Spring Boot: Cannot access REST Controller on localhost (404)](https://stackoverflow.com/questions/31318107/spring-boot-cannot-access-rest-controller-on-localhost-404) — Ebillson GRAND JEAN, Mar 12 '23 at 23:09

score 6 · Answer 1 · edited Jul 12 '18 at 17:36

6

The controller class should be in a folder of the Application class or in the lower folder.

So, if the application class is in package com.company.app, then the controller class should be in package com.company.app or in com.company.app.*. Let say the controller class is in com.company.controller, it will not mapped since its not in same package or child package of application class.

edited Jul 12 '18 at 17:36

wibeasley

5,000
3
34
62

answered Jul 12 '18 at 17:16

mufeez-shaikh

179
2
14

SantiagoM · Answer 2 · 2016-10-20T19:56:17.620

1

You should use this annotations in your init class of your springBoot App

@Configuration
@EnableAutoConfiguration
@ComponentScan("com.my.package")
public class WebAppInitializer{

    public static void main(String[] args) throws Exception{
        SpringApplication.run(WebAppInitializer.class, args);
    }

}

edited Oct 20 '16 at 19:56

answered Oct 20 '16 at 19:44

SantiagoM

73
5

This is not working :/ I'm sure there is something else I'm missing :/ – Guillaume LUNIK Oct 20 '16 at 19:55
4

Those annotations are *exactly* equivalent to `@SpringBootApplication`. – chrylis -cautiouslyoptimistic- Oct 20 '16 at 20:51
Any other suggestions ? – Guillaume LUNIK Oct 21 '16 at 08:27
Took me a full day to realize that my controller package name was "controller" instead of "com.my.controller". @ComponenetScan("controller") fixed my problem. – nishantvodoo Feb 28 '18 at 16:57

score 0 · Answer 3 · answered Oct 10 '19 at 08:40

0

Sometimes, when it makes no sense why the mapping is not working, just change the server port so something different than 8080.

ie. in the application.properties or yml, server.port=8081

answered Oct 10 '19 at 08:40

Deian Petrov

1

Spring REST Controller not mapped

3 Answers3