I am not able to run spring boot

Question

I have created spring boot data jpa application using gradle's and my project structure look likes below.

com.duregesh

 --TestSpringBootDataJpaApplication.java

com.durgesh.controller

 --UserController.java

com.durgesh.model

 --User.java

com.durgesh.repositories

 --UserJpaRepository.java

com.durgesh.services

 --UserServiceImpl.java

when i am runing spring boot below exception is firing Description:

Field userJpaRepository in com.durgesh.services.UserServiceImpl required a bean named 'emf' that could not be found.

Action: Consider defining a bean named 'emf' in your configuration.

@SpringBootApplication
public class TestSpringBootDataJpaApplication {
    public static void main(String[] args) {
        SpringApplication.run(TestSpringBootDataJpaApplication.class, args);
    }
-------------
public interface UserJpaRepository extends JpaRepository<User, Long> {}
-------------
@Entity
@Table(name = "USER")   
public class User implements Serializable{
        @Id
        private Long id;
        @Column(unique = true)
        private String uid;
        private String password;
        public Long getId() {
            return id;
        }
        public void setId(Long id) {
            this.id = id;
        }
        public String getUid() {
            return uid;
        }
        public void setUid(String uid) {
            this.uid = uid;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
        }
        }
----------------
@Service
@EnableJpaRepositories(basePackages="com.construction.de.*", entityManagerFactoryRef="emf")
public class UserServiceImpl implements UserService {
    @Autowired
    private UserJpaRepository userJpaRepository;
    @Override
    public User add(final User user) {
        return userJpaRepository.save(user);
    }
    @Override
    public User findById(final Long id) {
        final User user = userJpaRepository.findOne(id);
            return user;
    }
}
----
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    @RequestMapping(value ="/",method = RequestMethod.POST)
    public User add( @RequestBody final User user){
        return userService.add(user);
    }
    @RequestMapping(value ="/{id}",method = RequestMethod.GET)
    public User findById(@PathVariable("id") final Long id){
        return userService.findById(id);        
    }
}

If am usring UserJpaRepository.java directly in UserController.java is working fine — Raj
@SpringBootApplication public class TestSpringBootDataJpaApplication { public static void main(String[] args) { SpringApplication.run(TestSpringBootDataJpaApplication.class, args); } — Raj
how have you configured spring ! .. seems like a problem in bean configuration . you have any bean named 'emf' like may be your EntityManagerFactory.. how have you wired that into your dao — Sagar
hmm looks like you have mixed up different configuration from different code examples. First issue is that in the your service layer 'UserServiceImpl' you re trying to wire a bean named emf which in your spring configuration(not yet posted) i am sure that you havent defined an entity manager with name emf. Second issue , is why you want the entityManager to be wired in the service layer ?? Spring Data will take care of your repositories , so you simply have to autowire the repository class as you did in the first place — AntJavaDev
Just remove @EnableJpaRepositories spring boot does that automatically . You now have configured it yourself and you have configured it with the wrong name of the entitymanagerfactory. But the whole annotation isn't needed when using Spring Boot. — M. Deinum

developer developer · Accepted Answer · 2016-11-24T11:46:06

The problem is with your database entityManager configuration for which, you need to follow the below steps:

(1) Provide @EnableJpaRepositories to the Application class as shown below (remove it from service).

@SpringBootApplication
@EnableJpaRepositories(basePackages="com.duregesh.*")
public class TestSpringBootDataJpaApplication {
    public static void main(String[] args) {
        SpringApplication.run(TestSpringBootDataJpaApplication.class, args);
}

(2) Provide your database driver and connection properties configured in the application.properties (under src/main/resources in eclipse or WEB-INF/classes folder in server) as shown below:

spring.datasource.url: YOUR_DB_URL
spring.datasource.driverClassName: YOUR_DB_DRIVER_CLASS
spring.datasource.username: YOUR_DB_USER
spring.datasource.password: YOUR_DB_PWD

I am not able to run spring boot

1 Answers