CODEWITHSUNDEEP
javaspringhibernatespring-bootpostman
Akash
Akash

Reputation: 425

Spring Boot Error 404 Not Found Hibernate

I am new to Spring Boot and I am just trying to get/fetch data from datasource through this code :

EmployeController.java

@RestController
@RequestMapping("/api")

    public class EmployeController {

        @Autowired
        private EmployeService employeService;

        @GetMapping("/employe")
        public List<Employe> get(){
            return employeService.get();
        }
    }

Employe.java

@Entity
@Table(name="employe")
public class Employe {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column
    private int id;
    @Column
    private String name;
    @Column
    private String gender;
    @Column
    private String department;
    @Column
    private Date dob;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getGender() {
        return gender;
    }
    public void setGender(String gender) {
        this.gender = gender;
    }
    public String getDepartment() {
        return department;
    }
    public void setDepartment(String department) {
        this.department = department;
    }
    public Date getDob() {
        return dob;
    }
    public void setDob(Date dob) {
        this.dob = dob;
    }
    @Override
    public String toString() {
        return "Employe [id=" + id + ", name=" + name + ", gender=" + gender + ", department=" + department + ", dob="
                + dob + "]";
    }

EmployeService.java

public interface EmployeService {
    List<Employe> get();
    Employe get(int id);
    void save(Employe employe);
    void delete(int id);
}

EmployeServiceImplement.java

@Service
public class EmployeServiceImplement implements EmployeService {

    @Autowired
    private EmployeDAO employeDAO;

    @Transactional
    @Override
    public List<Employe> get() {
        return employeDAO.get();
    }
}

EmployeDAO.java

public interface EmployeDAO {
    List<Employe> get();
    Employe get(int id);
    void save(Employe employe);
    void delete(int id);
}

EmployeDAOimplement.java

@Repository
public class EmployeDAOImplement implements EmployeDAO {

    @Autowired
    private EntityManager entityManager;

    @Override
    public List<Employe> get() {
        Session currentSession = entityManager.unwrap(Session.class);
        Query<Employe> query = currentSession.createQuery("from Employe", Employe.class);
        List<Employe>list = query.getResultList();  
        return list;
    }
}

I have writen all the configuration related to MySQl database into the application.properties and created a employe table into my database.

As i know that Spring Data JPA is much better way to implement than this but as i m just want to begin with the same ... As running my project as Spring Boot App and then from Postman i am getting the 404 Error like this :

enter image description here

I am unable to understand why this is showing the 404 error and how to solve it..

Upvotes: 0

Views: 1419

Answers (4)

Shamsuddin Tibriz
Shamsuddin Tibriz

Reputation: 54

What is your context path configuration in application.properties? You'll see a property same as this server.servlet.context-path only if you set it. If you didn't set it, then probably the path http://localhost:8080/api/employe is correct, in that case I'll suggest checking if your application really running on port 8080, if some other application runs on port 8080 and your application runs on some other port then you'll surely get a 404 response.

Upvotes: 1

Vetemi
Vetemi

Reputation: 851

You could also do it like this:

Set in your application props file:

server.servlet.context-path=/api

Then remove RequestMapping Annotation:

@RestController
public class EmployeController {

    @Autowired
    private EmployeService employeService;

    @GetMapping("/employe")
    public List<Employe> get(){
        return employeService.get();
     }
 }

Then you should be able to retrieve it with requeste URL

Upvotes: 1

Matt U
Matt U

Reputation: 5118

The annotation on your controller @RequestMapping("/api") means the route will be http://localhost:8080/api but you're trying to invoke http://localhost:8080/api/employe. I think you should just change it to @RequestMapping("/api/employe").

Upvotes: 1

Alexander Nikolov
Alexander Nikolov

Reputation: 1979

You need to add the name of your artifact (project name) in the request URI. Ex:

http://localhost:8080/my-app/api/employe

If you dont want it in the URI, change the contextPath configuration in your application.properties:

server.contextPath = /

Upvotes: 1

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