Dev Log

Package Structure

Ref

• https://stackoverflow.com/questions/40902280/what-is-the-recommended-project-structure-for-spring-boot-rest-projects

• https://medium.com/the-resonant-web/spring-boot-2-0-project-structure-and-best-practices-part-2-7137bdcba7d3

Spring Initializr

https://start.spring.io/

• Project : Gradle

• Spring Boot : 2.6.3

• Language : Java (version 11)

• Open JDK : 11.0.10

• Package : Jar

Building RESTful API - GET

• @RequestMapping으로 구현하기

• 매개변수가 없는 GET 메서드 구현

• @PathVariable을 활용한 GET 메서드 구현

• @RequestParam을 활용한 GET 메서드 구현

• DTO 객체를 활용한 GET 메서드 구현

Building RESTful API - POST

Building RESTful API - PUT

Building RESTful API - DELETE

DTO, DAO, Entity, VO, Model

Ref

• Controller, Service, Repository

• DAO, DTO, Entity Class의 차이

• Difference between DTO, VO, POJO, Java Beans ?

• MVC Design Pattern

• DTO의 사용 범위에 대하여

Email 중복 체크

Password Encode

Builder Pattern

Ref

https://refactoring.guru/design-patterns/builder/java/example

Mapper

@Controller vs @RestController

Lombok

ORM - JPA/Hibernate , JDBC

• Repository, DAO

• JpaRepository

Ref

• JDBC, JPA/Hibernate, Mybatis의 차이

• [DB] ORM 이란

HTTP Status

ResponseEntity

Optional

Optional is a container object which may or may not contain a non-null value. You must import java. util package to use this class. If a value is present, isPresent() will return true and get() will return the value.

Ref

Optional class

Java Stream

Ref

Java 스트림 Stream (1) 총정리

One to One

Transactional

• 위치

ResourceNotFoundException