함수 추출하기

• 드래그해서 alt + Enter

파라미터 추출

• control + alt + P

junit assertThrows

Member member = createMember("KIM");
Item item = createBook("JPA", 10000, 10);
int orderCount = 11;

NotEnoughStockException exception = assertThrows(
        NotEnoughStockException.class,
        ()-> orderService.order(member.getId(), item.getId(), orderCount)
);
String message = exception.getMessage();
System.out.println("message = " + message);

웹계층 구현

확장자를 html로 설정하여 별도 서버없이 UI확인 가능

mustache:
  suffix: .html

build.gradle에 추가

	
dependencies {
	//...
	implementation 'org.springframework.boot:spring-boot-starter-validation'
}

NotEmpty

package jpabook.jpashop.web;

import lombok.Getter;
import lombok.Setter;

import javax.validation.constraints.NotEmpty;

@Getter
@Setter
public class MemberForm {
    @NotEmpty(message = "회원 이름은 필수입니다.")
    private String name;
    private String city;
    private String street;
    private String zipcode;
}