웹 애플리케이션 계층 구조, Domain, Repository, Service, View, Controller
JUnit, Test Case, Assertions.assertThat, assertThrows, @BeforeEach, @AfterEach,
Spring Boot Configuration.java 파일 설정, Constructor DI, Setter DI
Spring DB, H2 DataBase, JDBC, JDBC Template, RowMapper, SimpleJdbcInsert
JPA, Hibernate, Entity, EntityManager, persist, createQuery, Spring Data JPA, JpaRepository
Spring Boot JUnit 통합 테스트(Spring & DB), @SpringBootTest, @Transactional
Spring Boot AOP