spring RequestMappingHandlerMapping not working

Question

I´m starting with Spring Boot for that I´m following a tutorial. In the tutorial, they created the controller with the @RequestMapping and GET method, once they have run the application, in the console is displayed something like this:

s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/rooms], methods = GET}" onto java.util.List<..//more lines

But in my case I got an error:

s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)

Why the Mapping is not created?

This is the controller:

package com.frankmoley.london.data.webservice;

import com.frankmoley.london.data.entity.Room;
import com.frankmoley.london.data.repository.RoomRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.util.ArrayList;
import java.util.List;

@RestController
public class RoomController {

    @Autowired
    private RoomRepository repository;

    @RequestMapping(value="/rooms", method= RequestMethod.GET)
    List findAll(@RequestParam(required=false) String roomNumber){

       List rooms = new ArrayList<>();

        if(null==roomNumber){

            Iterable results = this.repository.findAll();
            results.forEach(room-> {rooms.add(room);});
        }else{

            Room room = this.repository.findByNumber(roomNumber);
            if(null!=room) {
                rooms.add(room);
            }
        }
        return rooms;
    }
}

Entity:

package com.frankmoley.london.data.entity;

import javax.persistence.*;

@Entity
@Table(name = "ROOM")
public class Room {

    @Id
    @Column(name = "ROOM_ID")
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    @Column(name = "NAME")
    private String name;
    @Column(name = "ROOM_NUMBER")
    private String number;
    @Column(name = "BED_INFO")
    private String info;

//getters and setters
}

Repository:

package com.frankmoley.london.data.repository;

import com.frankmoley.london.data.entity.Room;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface RoomRepository extends CrudRepository {
    Room findByNumber(String number);

}

spring RequestMappingHandlerMapping not working

Answers (1)

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