Spring boot RestControllers doesn't work with library containing @Entities

Question

I have a spring boot (3.2.1) application that run on java 17. I also have library that contains @Entity annotations. I am connection to database using spring boot default Hibernate. I am able to connect to database, but the endpoint defined in @RestController aren't working. I was previously initializing database from the library (passing string values) and I was using EclipseLink instead of Hibernate.

I had to newly use @EntityScan to get entities from the library. Previously there was persistence.xml. For some reason I am able to connect to the database inside of the spring boot but the @RequestMapping doesn't work. I pass the connection as EntityManagerFactory to my library.

I am not using repositories, I don't know if that can have any effect on the functionality.

I was discussing problems with database connection here.

My controller look that contains the mappings looks like this:

@RestController
@RequestMapping("${com.example.apiPrefix}/data")
public class MyController extends GodController {


  @Autowired
  private KafkaTemplate<Integer, MyWrapper> kafkaTemplate;


  
  @GetMapping(value = "/id", produces = {"application/json"})
  @io.swagger.v3.oas.annotations.parameters.RequestBody(description = "Description...")
  public ResponseEntity<MyWrapper> getId() throws DatatypeConfigurationException {

    ResponseEntity<MyWrapper> res = null;

    .
    .
    .
    .
    return res;
  }

and the GodController looks like this:

@RequestMapping("${com.example.apiPrefix}")
@OpenAPIDefinition(
        info = @Info(
                title = "Hello World",
                version = "1.0",
                description = "Description"
        )
)
public class GodController {

  @Autowired
  Library libr;

  
  public SctrzController() {
  }
  
}

Answer 1

So I resolved the problem. In spring boot 3 there should be http address for endpoint with backslash at the end.

I was using localhost:8080/prefix/data

It works for localhost:8080/prefix/data/

Silly mistake, hope it will help somebody one day.