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bright jazz music
blog05: 단건조회 (포스트 조회) 본문
1. PostController에 get 메소드 추가
//PostController.java
package com.endofma.blog.controller;
import com.endofma.blog.domain.Post;
import com.endofma.blog.request.PostCreate;
import com.endofma.blog.service.PostService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.*;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Slf4j
@RestController
@RequiredArgsConstructor
public class PostController {
private final PostService postService;
@PostMapping("/posts")
public void post(@RequestBody @Valid PostCreate request) {
postService.write(request);
// return Map.of();
}
//단건 조회
@GetMapping("/posts/{postId}")
public Post get(@PathVariable Long postId){
// public void get(@PathVariable(name="postId") Long 임의변수명){ 이렇게 해도 된다.
Post post = postService.get(postId);
return post;
}
}
2. PostService에 get 메서드 추가
//PostService.java
package com.endofma.blog.service;
import com.endofma.blog.domain.Post;
import com.endofma.blog.repository.PostRepository;
import com.endofma.blog.request.PostCreate;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import java.util.Optional;
@Slf4j
@Service
//@RequiredArgsConstructor
public class PostService {
private final PostRepository postRepository;
public PostService(PostRepository postRepository){
this.postRepository = postRepository;
}
public void write(PostCreate postCreate) {
//PostCreate 일반 클래스 ==> Post 엔티티
Post post = Post.builder()
.title(postCreate.getTitle())
.content(postCreate.getContent())
.build();
postRepository.save(post);
}
//단건 조회
public Post get(Long id) {
// Post post = postRepository.findById(id); optional 데이터로 감싸져서 오기 때문에 아래와 같이 할 수 있다.
// Optional<Post> postOptional = postRepository.findById(id);
// if(postOptional.isPresent()){
// return postOptional.get();
// }
// return null; 그러나 가능한 한 옵셔널은 바로 꺼내서 변환해 주는 게 좋다.
Post post = postRepository.findById(id)
.orElseThrow(() -> new IllegalArgumentException("존재하지 않는 글입니다.")); //있으면 post반환 없으면 에러 반환
return post;
}
}
리포지토리는 구현한 JpaRepository 인터페이스의 것을 사용
//PostRepository.java
package com.endofma.blog.repository;
import com.endofma.blog.domain.Post;
import org.springframework.data.jpa.repository.JpaRepository;
public interface PostRepository extends JpaRepository<Post, Long> { //Post 엔티티와 primary key 형식이 들어간다.
}
3. 서비스 테스트 : test2()
//PostServiceTest.java
package com.endofma.blog.service;
import com.endofma.blog.domain.Post;
import com.endofma.blog.repository.PostRepository;
import com.endofma.blog.request.PostCreate;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest
class PostServiceTest {
@Autowired
private PostService postService;
@Autowired
private PostRepository postRepository;
@BeforeEach
void clean(){
postRepository.deleteAll();
}
@Test
@DisplayName("글 작성")
void test1() {
//given
PostCreate postCreate = PostCreate.builder()
.title("제목입니다.")
.content("내용입니다.")
.build();
//when
postService.write(postCreate);
//then
Assertions.assertEquals(1L, postRepository.count());
Post post = postRepository.findAll().get(0);
assertEquals("제목입니다.", post.getTitle());
assertEquals("내용입니다.", post.getContent());
}
@Test
@DisplayName("글 1개 조회")
void test2(){
//given
Post requestPost = Post.builder()
.title("foo")
.content("bar")
.build();
postRepository.save(requestPost);
//when
Post post = postService.get(requestPost.getId());
//then
Assertions.assertNotNull(post);
assertEquals(1L, postRepository.count());
assertEquals("foo", post.getTitle());
assertEquals("bar", post.getContent());
}
}
결과 : 테스트 클래스 전체 테스트를 수행해도 결과는 같다.
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.7.6)
2022-12-29 16:19:04.846 INFO 43776 --- [ Test worker] c.endofma.blog.service.PostServiceTest : Starting PostServiceTest using Java 11.0.12 on DESKTOP-8H1PTVG with PID 43776 (started by markany-hjcha in D:\personal\blog)
2022-12-29 16:19:04.851 INFO 43776 --- [ Test worker] c.endofma.blog.service.PostServiceTest : No active profile set, falling back to 1 default profile: "default"
2022-12-29 16:19:05.425 INFO 43776 --- [ Test worker] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-12-29 16:19:05.470 INFO 43776 --- [ Test worker] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 38 ms. Found 1 JPA repository interfaces.
2022-12-29 16:19:05.884 INFO 43776 --- [ Test worker] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-12-29 16:19:06.080 INFO 43776 --- [ Test worker] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-12-29 16:19:06.147 INFO 43776 --- [ Test worker] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-12-29 16:19:06.206 INFO 43776 --- [ Test worker] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.14.Final
2022-12-29 16:19:06.377 INFO 43776 --- [ Test worker] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-12-29 16:19:06.505 INFO 43776 --- [ Test worker] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2022-12-29 16:19:07.125 INFO 43776 --- [ Test worker] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-12-29 16:19:07.133 INFO 43776 --- [ Test worker] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-12-29 16:19:07.613 WARN 43776 --- [ Test worker] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2022-12-29 16:19:08.099 INFO 43776 --- [ Test worker] c.endofma.blog.service.PostServiceTest : Started PostServiceTest in 3.534 seconds (JVM running for 5.794)
2022-12-29 16:19:08.438 INFO 43776 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2022-12-29 16:19:08.439 INFO 43776 --- [ionShutdownHook] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'
2022-12-29 16:19:08.444 INFO 43776 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-12-29 16:19:08.449 INFO 43776 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
BUILD SUCCESSFUL in 6s
4 actionable tasks: 1 executed, 3 up-to-date
PM 4:19:08: Execution finished ':test --tests "com.endofma.blog.service.PostServiceTest.test2"'.
4. 컨트롤러 테스트: test4()
//PostControllerTest.java
package com.endofma.blog.controller;
import com.endofma.blog.domain.Post;
import com.endofma.blog.repository.PostRepository;
import com.endofma.blog.request.PostCreate;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.servlet.MockMvc;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.springframework.http.MediaType.APPLICATION_JSON;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.hamcrest.Matchers.is;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath; //이게 맞음
//import static org.springframework.test.web.client.match.MockRestRequestMatchers.jsonPath; 원래 이걸로 했음.
//@WebMvcTest //간단한 웹테스트만 가능. 우린 스프링 전반에 걸쳐 여러 가지를 만들었기 때문에 @SpringBootTest가 필요
@AutoConfigureMockMvc //@WebMvcTest가 없어지면 기존 테스트가 안되므로 @WebMvcTest를 구성하는 애노테이션을 떼내어 붙였다.
@SpringBootTest
class PostControllerTest {
@Autowired
private MockMvc mockMvc; ////Could not autowire. No beans of 'MockMvc' type found.
@Autowired
private PostRepository postRepository; //DB저장 테스트를 위해 주입
@BeforeEach
void clean() {
postRepository.deleteAll();
}
@Test
@DisplayName("/posts 요청시 hello world를 출력한다")
void test() throws Exception {
//given
// PostCreate request = new PostCreate("제목입니다.", "내용입니다.");
PostCreate request = PostCreate.builder()
.title("제목입니다.")
.content("내용입니다.")
.build();
//jackson을 사용하여 객체를 Json 형태로 바꿔준다.(json을 처리해 줌)
ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writeValueAsString(request);
// @Autowired private ObjectMapper objectMapper; 이렇게 주입해서도 쓸 수 있다.
System.out.println(json);
//expected
//기본적으로 Content-Type을 application/json으로 보냄. 예전에는 application/x-www-form-urlencoded를 썼다.
mockMvc.perform(post("/posts")
.contentType(APPLICATION_JSON) //기본값이라 주석처리
// .content("{\"title\": \"제목입니다.\", \"content\": \"내용입니다.\"}") //json 형태로 값 넣어주기
//.content에는 byte나 String만 들어가진다. 따라서 jackson으로 Json변환처리를 하지 않은 request를 넣을 수는 없다.
.content(json) //jackson을 사용하여 json이 된 객체. 클래스에 게터가 존재해야 한다.
)
.andExpect(status().isOk()) //http response 가 200인지
.andExpect(content().string("")) // 내용이 hello world인지
.andDo(print()); //요청에 대한 전반적인 요약을 출력해준다.
}
@Test
@DisplayName("/posts 요청시 title 값은 필수다")
void test2() throws Exception {
//given
PostCreate request = PostCreate.builder()
//.title("제목입니다.")
.content("내용입니다.")
.build();
ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writeValueAsString(request);
//expected
mockMvc.perform(post("/posts")
.contentType(APPLICATION_JSON)
.content(json)
)
.andExpect(status().isBadRequest()) //.OK()
.andExpect(jsonPath("$.code").value("400")) //json 검증
.andExpect(jsonPath("$.message").value("잘못된 요청입니다!"))
// .andExpect(jsonPath("$.validation.title").value("타이틀을 입력하세요!"))
.andDo(print());
}
@Test
@DisplayName("/posts 요청시 DB에 값이 저장된다.")
void test3() throws Exception {
//given
PostCreate request = PostCreate.builder()
.title("제목입니다.")
.content("내용입니다.")
.build();
ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writeValueAsString(request);
//when
mockMvc.perform(post("/posts")
.contentType(APPLICATION_JSON)
.content(json)
)
.andExpect(status().isOk())
.andDo(print());
//then
assertEquals(1L, postRepository.count()); //하나의 값이 있을 거라고 예상. 일치
//DB에 잘 들어갔는지 확인
Post post = postRepository.findAll().get(0); //가장 처음 데이터 가져옴
assertEquals("제목입니다.", post.getTitle());
assertEquals("내용입니다.", post.getContent());
}
@Test
@DisplayName("글 1개 조회")
void test4() throws Exception{
//given
Post post = Post.builder()
.title("foo")
.content("bar")
.build();
postRepository.save(post);
//expected
mockMvc.perform(get("/posts/{postId}", post.getId())
.contentType(APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.id").value(post.getId()))
.andExpect(jsonPath("$.title").value("foo"))
.andExpect(jsonPath("$.content").value("bar"))
.andDo(print());
}
}
결과 : 테스트 클래스 전체 테스트를 수행해도 결과는 같다.
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.7.6)
2022-12-29 16:17:14.710 INFO 20612 --- [ Test worker] c.e.blog.controller.PostControllerTest : Starting PostControllerTest using Java 11.0.12 on DESKTOP-8H1PTVG with PID 20612 (started by markany-hjcha in D:\personal\blog)
2022-12-29 16:17:14.711 INFO 20612 --- [ Test worker] c.e.blog.controller.PostControllerTest : No active profile set, falling back to 1 default profile: "default"
2022-12-29 16:17:15.318 INFO 20612 --- [ Test worker] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-12-29 16:17:15.360 INFO 20612 --- [ Test worker] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 36 ms. Found 1 JPA repository interfaces.
2022-12-29 16:17:15.774 INFO 20612 --- [ Test worker] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-12-29 16:17:15.968 INFO 20612 --- [ Test worker] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-12-29 16:17:16.036 INFO 20612 --- [ Test worker] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-12-29 16:17:16.097 INFO 20612 --- [ Test worker] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.14.Final
2022-12-29 16:17:16.282 INFO 20612 --- [ Test worker] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-12-29 16:17:16.407 INFO 20612 --- [ Test worker] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2022-12-29 16:17:16.936 INFO 20612 --- [ Test worker] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-12-29 16:17:16.943 INFO 20612 --- [ Test worker] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-12-29 16:17:17.409 WARN 20612 --- [ Test worker] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2022-12-29 16:17:17.934 INFO 20612 --- [ Test worker] o.s.b.t.m.w.SpringBootMockServletContext : Initializing Spring TestDispatcherServlet ''
2022-12-29 16:17:17.934 INFO 20612 --- [ Test worker] o.s.t.web.servlet.TestDispatcherServlet : Initializing Servlet ''
2022-12-29 16:17:17.935 INFO 20612 --- [ Test worker] o.s.t.web.servlet.TestDispatcherServlet : Completed initialization in 1 ms
2022-12-29 16:17:17.964 INFO 20612 --- [ Test worker] c.e.blog.controller.PostControllerTest : Started PostControllerTest in 3.841 seconds (JVM running for 6.217)
MockHttpServletRequest:
HTTP Method = GET
Request URI = /posts/1
Parameters = {}
Headers = [Content-Type:"application/json;charset=UTF-8"]
Body = null
Session Attrs = {}
Handler:
Type = com.endofma.blog.controller.PostController
Method = com.endofma.blog.controller.PostController#get(Long)
Async:
Async started = false
Async result = null
Resolved Exception:
Type = null
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 200
Error message = null
Headers = [Content-Type:"application/json"]
Content type = application/json
Body = {"id":1,"title":"foo","content":"bar"}
Forwarded URL = null
Redirected URL = null
Cookies = []
2022-12-29 16:17:18.441 INFO 20612 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2022-12-29 16:17:18.442 INFO 20612 --- [ionShutdownHook] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'
2022-12-29 16:17:18.446 INFO 20612 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-12-29 16:17:18.450 INFO 20612 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
BUILD SUCCESSFUL in 8s
4 actionable tasks: 2 executed, 2 up-to-date
PM 4:17:18: Execution finished ':test --tests "com.endofma.blog.controller.PostControllerTest.test4"'.
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blog06: 응답클래스 분리(req: PostCreate / res:PostResponse) (0) | 2022.12.30 |
blog04: 작성글 저장2 - ObjectMapper(jackson)사용, 클래스 분리 (0) | 2022.12.28 |
blog04: 작성글 저장1 - 게시글 저장 구현 (0) | 2022.12.28 |
blog03: 데이터 검증3 (ExceptionController) (0) | 2022.12.27 |
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