스프링 데이터 10부 MongoDB

의존성 추가

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>

MongoDB 설치 및 실행 (도커)

• docker run -p 27017:27017 –name mongo_boot -d mongo
• docker exec -it mongo_boot bash
• mongo

스프링 데이터 몽고DB

• MongoTemplate

  @Document(collection = "accounts")
  public class Account {
    
      @Id
      private String id;
      private String username;
      private String email;
    
      public String getId() {
          return id;
      }
    
      public void setId(String id) {
          this.id = id;
      }
    
      public String getUsername() {
          return username;
      }
    
      public void setUsername(String username) {
          this.username = username;
      }
    
      public String getEmail() {
          return email;
      }
    
      public void setEmail(String email) {
          this.email = email;
      }
  }
  

  @SpringBootApplication
  public class SpringbootmongoApplication {
    
      @Autowired
      MongoTemplate mongoTemplate;
        
      public static void main(String[] args) {
          SpringApplication.run(SpringbootmongoApplication.class, args);
      }
    
      @Bean
      public ApplicationRunner applicationRunner() {
          return args -> {
              Account account = new Account();
              account.setEmail("juho@mail.com");
              account.setUsername("juho");
                
              mongoTemplate.insert(account);
          }
      }
  }
  

• MongoRepository

  (예제는 아래 @DataMongoTest 참조)

• 내장형 MongoDB (테스트용)

  • 의존성 추가

    <dependency>
        <groupId>de.flapdoodle.embed</groupId>
        <artifactId>de.flapdoodle.embed.mongo</artifactId>
        <scope>test</scope>
    </dependency>
    

• @DataMongoTest

  • 예제 소스

    @RunWith(SpringRunner.class)
    @DataMongoTest
    public class AccountRepositoryTest {
        
        @Autowired
        AccountRepository accountRepository;
        
        @Test
        public void findByEmail() {
            Account account = new Account();
            account.setUsername("Juho");
            account.setEmail("juho@mail.com");
        
            accountRepository.save(account);
        
            Optional<Account> byId = accountRepository.findById(account.getId());
            assertThat(byId).isNotEmpty();
        
            Optional<Account> byEmail = accountRepository.findByEmail(account.getEmail());
            assertThat(byEmail).isNotEmpty();
            assertThat(byEmail.get().getUsername()).isEqualTo("Juho");
        }
    }