Consider defining a bean of type in your configuration

Question

I am following this tutorial ( https://www.youtube.com/watch?v=Hu-cyytqfp8 ) and trying to connect to MongoDB on a remote server in Spring Boot. I get the following message when I run the application.

Description: Parameter 0 of constructor in com.mongotest.demo.Seeder required a bean of type 'com.mongotest.repositories.StudentRepository' that could not be found.

Action: Consider defining a bean of type 'com.mongotest.repositories.StudentRepository' in your configuration.

The project structure.

And here are my classes

    @Document(collection = "Students")
    public class Student {

        @Id
        private String number;
        private String name;
        @Indexed(direction = IndexDirection.ASCENDING)
        private int classNo;

    //Constructor and getters and setters.
    }

    ================================

    @Repository
    public interface StudentRepository extends MongoRepository<Student, String>{

    }

    ================================

    @Component
    @ComponentScan({"com.mongotest.repositories"})
    public class Seeder implements CommandLineRunner{

        private StudentRepository studentRepo;

        public Seeder(StudentRepository studentRepo) {
            super();
            this.studentRepo = studentRepo;
        }

        @Override
        public void run(String... args) throws Exception {
            // TODO Auto-generated method stub

            Student s1 = new Student("1","Tom",1);
            Student s2 = new Student("2","Jerry",1);
            Student s3 = new Student("3","Kat",2);
            studentRepo.deleteAll();
            studentRepo.save(Arrays.asList(s1,s2,s3));

        }

    }

    ================================

    @SpringBootApplication
    public class DemoApplication {
        public static void main(String[] args) {
            SpringApplication.run(DemoApplication.class, args);
        }
    }

pom.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>

        <groupId>com.mongotest</groupId>
        <artifactId>demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>

        <name>demo</name>
        <description>Demo project for Spring Boot</description>

        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.9.RELEASE</version>
            <relativePath /> <!-- lookup parent from repository -->
        </parent>

        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>

        <dependencies>
            <dependency>
                <groupId>org.mongodb</groupId>
                <artifactId>mongo-java-driver</artifactId>
                <version>3.4.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-mongodb</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>


    </project>

see https://stackoverflow.com/a/45012168/3344829, can you try spring boot version `1.5.1` or less — Saravana, Jan 13 '18 at 13:40
I tried 1.5.1.RELEASE and 1.5.0.RELEASE... still not working — Chase, Jan 13 '18 at 13:57
we need to activate mongo repositories using `@EnableMongoRepositories`, please see the answer — Saravana, Jan 13 '18 at 14:16
Try annotating the StudentRepository class with `@Service`. I saw this on another [answer](https://stackoverflow.com/questions/59993124/the-injection-point-has-the-following-annotations-org-springframework-beans/59994805#59994805), and this worked for me. — Lycanthropeus, Apr 14 '21 at 09:24
@Lycanthropeus a Repository is not a Service, maybe it should be annotated as `@Repository`? — Zap, Aug 20 '21 at 11:42

Saravana · Accepted Answer · 2018-01-13T14:18:03.280

21

Please add below annotations in DemoApplication

@SpringBootApplication
@ComponentScan("com.mongotest") //to scan packages mentioned
@EnableMongoRepositories("com.mongotest") //to activate MongoDB repositories
public class DemoApplication { ... }

edited Jan 13 '18 at 14:18

answered Jan 13 '18 at 14:12

Saravana

12,647
2
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2

Could you add some explanation please? – Eggcellentos May 09 '21 at 17:35

score 3 · Answer 2 · edited Jul 07 '20 at 09:20

3

If you wish to avoid writing annotations you can simply change your packages com.mongotest.entities to com.mongotest.demo.entities and com.mongotest.repositories to com.mongotest.demo.repositories

Spring Boot architecture will take care of rest. Actually other files and packages are supposed to be either at same level or below your DemoApplication.java.

edited Jul 07 '20 at 09:20

Sampada

2,931
7
27
39

answered Jan 13 '18 at 14:37

Ankit Kumar

231
2
6

score 3 · Answer 3 · answered Aug 11 '18 at 13:15

In my case , I was getting same error using mysql db

solved using @EnableJpaRepositories

@SpringBootApplication
@ComponentScan("com.example.repositories")//to scan repository files
@EntityScan("com.example.entities")
@EnableJpaRepositories("com.example.repositories")
public class EmployeeApplication implements CommandLineRunner{ ..}

Sushrut Kanetkar · Answer 4 · 2019-01-03T03:59:48.020

I have 3 helper classes RedisManager, JWTTokenCreator & JWTTokenReader which I needed to pass in constructor as dependency of SessionService spring service.

@SpringBootApplication
@Configuration
public class AuthenticationServiceApplication {
  @Bean
  public SessionService sessionService(RedisManager redisManager, JWTTokenCreator tokenCreator, JWTTokenReader tokenReader) {
    return new SessionService(redisManager,tokenCreator,tokenReader);
  }

  @Bean
  public RedisManager redisManager() {
    return new RedisManager();
  }

  @Bean
  public JWTTokenCreator tokenCreator() {
    return new JWTTokenCreator();
  }

  @Bean
  public JWTTokenReader JWTTokenReader() {
    return new JWTTokenReader();
  }

  public static void main(String[] args) {
     SpringApplication.run(AuthenticationServiceApplication.class, args);
  }
}

The service class is as follows

@Service
@Component
public class SessionService {
  @Autowired
  public SessionService(RedisManager redisManager, JWTTokenCreator 
      tokenCreator, JWTTokenReader tokenReader) {

      this.redisManager = redisManager;
      this.tokenCreator = tokenCreator;
      this.jwtTokenReader = tokenReader;

   }
}

score 0 · Answer 5 · answered Apr 18 '20 at 17:16

0

The problem here is with the annotation you defined.

@ComponentScan("com.mongotest")

This will scan all the relevant packages under the project structure 'com.mongotest' and initializes the beans in all the subpackage classes.

answered Apr 18 '20 at 17:16

Dheeraj

332
3
4

score -3 · Answer 6 · answered Oct 19 '19 at 11:29

@Document(collection = "Students")
public class Student {
 
 @Id
 private String number;
 private String name;
 @Indexed(direction = IndexDirection.ASCENDING)
 private int classNo;

//Constructor and getters and setters.
}

================================

@Repository
public interface StudentRepository extends MongoRepository<Student, String>{

}

================================

@Component
@ComponentScan({"com.mongotest.repositories"})
public class Seeder implements CommandLineRunner{

 private StudentRepository studentRepo;
 
 public Seeder(StudentRepository studentRepo) {
  super();
  this.studentRepo = studentRepo;
 }

 @Override
 public void run(String... args) throws Exception {
  // TODO Auto-generated method stub

  Student s1 = new Student("1","Tom",1);
  Student s2 = new Student("2","Jerry",1);
  Student s3 = new Student("3","Kat",2);
  studentRepo.deleteAll();
  studentRepo.save(Arrays.asList(s1,s2,s3));
  
 }

}

================================

@SpringBootApplication
public class DemoApplication {
 public static void main(String[] args) {
  SpringApplication.run(DemoApplication.class, args);
 }
}

ThIs doesn't work at all. – redwolfgang20 Oct 14 '21 at 05:35 — redwolfgang20, Oct 14 '21 at 05:35

Consider defining a bean of type in your configuration

6 Answers6

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