Spring Boot MongoDB

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dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-data-mongodb'
}

install mongodb

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xcode-select --install
brew tap mongodb/brew
brew install [email protected]

Code

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import java.util.List;
import org.springframework.data.mongodb.repository.MongoRepository;

public interface CustomerRepository extends MongoRepository<Customer, String> {

  public Customer findByFirstName(String firstName);
  public List<Customer> findByLastName(String lastName);

}

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@SpringBootApplication
public class AccessingDataMongodbApplication implements CommandLineRunner {

  @Autowired
  private CustomerRepository repository;

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

  @Override
  public void run(String... args) throws Exception {

    repository.deleteAll();

    // save a couple of customers
    repository.save(new Customer("Alice", "Smith"));
    repository.save(new Customer("Bob", "Smith"));

    // fetch all customers
    System.out.println("Customers found with findAll():");
    System.out.println("-------------------------------");
    for (Customer customer : repository.findAll()) {
      System.out.println(customer);
    }
    System.out.println();

    // fetch an individual customer
    System.out.println("Customer found with findByFirstName('Alice'):");
    System.out.println("--------------------------------");
    System.out.println(repository.findByFirstName("Alice"));

    System.out.println("Customers found with findByLastName('Smith'):");
    System.out.println("--------------------------------");
    for (Customer customer : repository.findByLastName("Smith")) {
      System.out.println(customer);
    }

  }

}

ref

• https://spring.io/guides/gs/accessing-data-mongodb/
• https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/