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<Room> findAll(@RequestParam(required=false) String roomNumber){
List<Room> rooms = new ArrayList<>();
if(null==roomNumber){
Iterable<Room> 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, Long> {
Room findByNumber(String number);
}
