POST request 404 not found - spring-boot

Question

Hello fellow programmers, I'm having trouble solving the 404 error in postman when I request the POST method.
{
"timestamp": "2022-06-01T03:17:33.459+00:00",
"status": 404,
"error": "Not Found",
"path": "/parking-spot"
}
I'm creating an API that does the parking control with Spring Boot. The program does not show any errors when I run the application.
2022-06-01 00:37:35.226 INFO 1720 --- [ main] c.a.p.ParkingControlApplication : Starting ParkingControlApplication using Java 17.0.2 on DESKTOP-7GPB86C with PID 1720 (C:\Users\sergio\Documents\Projetos\Spring boot\Projeto 01\parking-control\Parking Control\target\classes started by sergio in C:\Users\sergio\Documents\Projetos\Spring boot\Projeto 01\parking-control\Parking Control)
2022-06-01 00:37:35.228 INFO 1720 --- [ main] c.a.p.ParkingControlApplication : No active profile set, falling back to 1 default profile: "default"
2022-06-01 00:37:35.558 INFO 1720 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-06-01 00:37:35.568 INFO 1720 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 3 ms. Found 0 JPA repository interfaces.
2022-06-01 00:37:36.078 INFO 1720 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-06-01 00:37:36.091 INFO 1720 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-06-01 00:37:36.092 INFO 1720 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.63]
2022-06-01 00:37:36.177 INFO 1720 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-06-01 00:37:36.177 INFO 1720 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 908 ms
2022-06-01 00:37:36.275 INFO 1720 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-06-01 00:37:36.307 INFO 1720 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.9.Final
2022-06-01 00:37:36.421 INFO 1720 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-06-01 00:37:36.493 INFO 1720 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-06-01 00:37:36.634 INFO 1720 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-06-01 00:37:36.654 INFO 1720 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQL10Dialect
2022-06-01 00:37:36.821 INFO 1720 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-06-01 00:37:36.829 INFO 1720 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-06-01 00:37:36.864 WARN 1720 --- [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2022-06-01 00:37:37.106 INFO 1720 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2022-06-01 00:37:37.113 INFO 1720 --- [ main] c.a.p.ParkingControlApplication : Started ParkingControlApplication in 2.176 seconds (JVM running for 2.494)
2022-06-01 00:38:30.217 INFO 1720 --- [nio-8080-exec-2] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2022-06-01 00:38:30.217 INFO 1720 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2022-06-01 00:38:30.218 INFO 1720 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet : Completed initialization in 1 ms
Aplication:
package com.api.parkingcontrol;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#SpringBootApplication
#RestController
#ComponentScan("ParkingSpotController")
#EnableJpaRepositories("ParkingSpotRepository")
#EntityScan("ParkingSpotRepository")
public class ParkingControlApplication {
public static void main(String[] args) {
SpringApplication.run(ParkingControlApplication.class, args);
}
#GetMapping("/")
public String index() {
return "Olá Mundo";
}
}
Controller:
package com.api.parkingcontrol.controllers;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.List;
import javax.validation.Valid;
import org.springframework.beans.BeanUtils;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
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.api.parkingcontrol.dtos.ParkingSpotDto;
import com.api.parkingcontrol.models.ParkingSpotModel;
import com.api.parkingcontrol.services.ParkingSpotService;
#RestController
#CrossOrigin(origins = "*", maxAge = 3600)
#RequestMapping(value = "/parking-spot")
public class ParkingSpotController {
final ParkingSpotService parkingSpotService;
public ParkingSpotController(ParkingSpotService parkingSpotService) {
this.parkingSpotService = parkingSpotService;
}
#PostMapping("/parking-spot")
#ResponseBody
public ResponseEntity<Object> saveParkingSpot(#RequestBody #Valid ParkingSpotDto parkingSpotDto) {
if (parkingSpotService.existByLicensePlateCar(parkingSpotDto.getLicensePlateCar())) {
return ResponseEntity.status(HttpStatus.CONFLICT).body("Conflict: License Plate Car is already in use!");
}
if (parkingSpotService.existsByParkingSpotNumber(parkingSpotDto.getParkingSpotNumber())) {
return ResponseEntity.status(HttpStatus.CONFLICT).body("Conflict: Parking Spot already in use!");
}
if (parkingSpotService.existsByApartmentAndBlock(parkingSpotDto.getApartament(), parkingSpotDto.getBlock())) {
return ResponseEntity.status(HttpStatus.CONFLICT)
.body("Conflict: Parking Spot already registered for this apartment/block!");
}
var parkingSpotModel = new ParkingSpotModel();
BeanUtils.copyProperties(parkingSpotDto, parkingSpotModel);
parkingSpotModel.setRegistrationDate(LocalDateTime.now(ZoneId.of("UTC")));
return ResponseEntity.status(HttpStatus.CREATED).body(parkingSpotService.save(parkingSpotModel));
}
#GetMapping
public ResponseEntity<List<ParkingSpotModel>> getAllParkingSpots() {
return ResponseEntity.status(HttpStatus.OK).body(parkingSpotService.findAll());
}
}
Service:
package com.api.parkingcontrol.services;
import java.util.List;
import javax.transaction.Transactional;
import org.springframework.stereotype.Service;
import com.api.parkingcontrol.models.ParkingSpotModel;
import com.api.parkingcontrol.repositories.ParkingSpotRepository;
#Service
public class ParkingSpotService {
final ParkingSpotRepository parkingSpotRepository;
/*Constructor do Repository*/
public ParkingSpotService(ParkingSpotRepository parkingSpotRepository) {
this.parkingSpotRepository = parkingSpotRepository;
}
#Transactional
public Object save(ParkingSpotModel parkingSpotModel) {
return parkingSpotRepository.save(parkingSpotModel);
}
public boolean existByLicensePlateCar(String licensePlateCar) {
return parkingSpotRepository.existByLicensePlateCar(licensePlateCar);
}
public boolean existsByParkingSpotNumber(String parkingSpotNumber) {
return parkingSpotRepository.existsByParkingSpotNumber(parkingSpotNumber);
}
public boolean existsByApartmentAndBlock(String apartament, String block) {
return parkingSpotRepository.existsByApartmentAndBlock(apartament, block);
}
public List<ParkingSpotModel> findAll (){
return parkingSpotRepository.findAll();
}
}
Am I missing something?

Answer 1

The problem is that in your controller you have
1)
#RequestMapping(value = "/parking-spot")
public class ParkingSpotController
and
2)
#PostMapping("/parking-spot")
#ResponseBody
public ResponseEntity<Object> saveParkingSpot
This means that your endpoint will be available by the path: /parking-spot/parking-spot