feat: PostCRUD

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/api/PostController.java

@@ -0,0 +1,47 @@
+package com.ssafy.springbootapi.domain.post.api;
+
+import com.ssafy.springbootapi.domain.post.application.PostService;
+import com.ssafy.springbootapi.domain.post.domain.Post;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+@Tag(name = "Post", description = "Post API 입니다.")
+@RestController
+@RequestMapping("/api/v1/posts")
+public class PostController {
+    private final PostService postService;
+
+    @Autowired
+    public PostController(PostService postService) {
+        this.postService = postService;
+    }
+
+    @GetMapping
+    public ResponseEntity<List<Post>> getAllPosts() {
+        List<Post> posts = postService.getAllPosts();
+        return new ResponseEntity<>(posts, HttpStatus.OK);
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<Post> getPostById(@PathVariable Long id) {
+        return postService.getPostById(id)
+                .map(post -> new ResponseEntity<>(post, HttpStatus.OK))
+                .orElseGet(() -> new ResponseEntity<>(HttpStatus.NOT_FOUND));
+    }
+
+    @PostMapping
+    public ResponseEntity<Post> createPost(@RequestBody Post post) {
+        Post createdPost = postService.savePost(post);
+        return new ResponseEntity<>(createdPost, HttpStatus.CREATED);
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<Void> deletePost(@PathVariable Long id) {
+        postService.deletePost(id);
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/application/PostService.java

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+package com.ssafy.springbootapi.domain.post.application;
+
+import com.ssafy.springbootapi.domain.post.dao.PostRepository;
+import com.ssafy.springbootapi.domain.post.domain.Post;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class PostService {
+    private final PostRepository postRepository;
+
+    @Autowired
+    public PostService(PostRepository postRepository) {
+        this.postRepository = postRepository;
+    }
+
+    public List<Post> getAllPosts() {
+        return postRepository.findAll();
+    }
+
+    public Optional<Post> getPostById(Long id) {
+        return postRepository.findById(id);
+    }
+
+    public Post savePost(Post post) {
+        return postRepository.save(post);
+    }
+
+    public void deletePost(Long id) {
+        postRepository.deleteById(id);
+    }
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/dao/PostRepository.java

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+package com.ssafy.springbootapi.domain.post.dao;
+
+import com.ssafy.springbootapi.domain.post.domain.Post;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PostRepository extends JpaRepository<Post, Long> {
+    // 추가적인 쿼리 메서드가 필요하다면 여기에 추가할 수 있습니다.
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/domain/Post.java

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+package com.ssafy.springbootapi.domain.post.domain;
+
+
+import com.ssafy.springbootapi.domain.user.domain.User;
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter @Setter
+public class Post {
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String contents;
+
+    private LocalDateTime createdAt;
+
+    private LocalDateTime updatedAt;
+
+    private Long likes;
+
+    private Long dislikes;
+
+    private Long views;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    public Post(long l, String firstPost, LocalDateTime now, LocalDateTime now1, long l1, long l2, long l3, User user) {
+    }
+
+
+    public Post() {
+
+    }
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/domain/PostReply.java

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+package com.ssafy.springbootapi.domain.post.domain;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter @Setter
+public class PostReply {
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String contents;
+
+    private LocalDateTime createdAt;
+
+    private LocalDateTime updatedAt;
+
+    private Long likes;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "post_id")
+    private Post post;
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/dto/PostDto.java

@@ -0,0 +1,19 @@
+package com.ssafy.springbootapi.domain.post.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.sql.Date;
+
+@Getter @Setter
+public class PostDto {
+    private Long id;
+    private String contents;
+    private Date createdAt;
+    private Date updatedAt;
+    private Long likes;
+    private Long dislikes;
+    private Long views;
+    private Long userId;
+
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/post/dto/PostReplyDto.java

@@ -0,0 +1,17 @@
+package com.ssafy.springbootapi.domain.post.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.sql.Date;
+
+
+@Getter @Setter
+public class PostReplyDto {
+    private Long id;
+    private String contents;
+    private Date createdAt;
+    private Date updatedAt;
+    private Long likes;
+    private Long postId;
+}

spring-boot-api/src/main/java/com/ssafy/springbootapi/domain/user/domain/User.java

@@ -0,0 +1,21 @@
+package com.ssafy.springbootapi.domain.user.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity
+@Getter
+@Setter
+public class User {
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String username;
+
+
+    // 생성자, getter, setter 등은 생략
+}

spring-boot-api/src/test/java/com/ssafy/springbootapi/domain/post/api/PostControllerTest.java

@@ -0,0 +1,96 @@
+package com.ssafy.springbootapi.domain.post.api;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.ssafy.springbootapi.domain.post.application.PostService;
+import com.ssafy.springbootapi.domain.post.domain.Post;
+
+import com.ssafy.springbootapi.domain.user.domain.User;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentMatchers;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.Optional;
+
+import static org.mockito.Mockito.when;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.times;
+
+@ExtendWith(MockitoExtension.class)
+class PostControllerTest {
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    @Mock
+    private PostService postService;
+
+    @InjectMocks
+    private PostController postController;
+
+    @Test
+    void getAllPosts() throws Exception {
+        when(postService.getAllPosts()).thenReturn(Arrays.asList(
+                new Post(1L, "First post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User()),
+                new Post(2L, "Second post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User())
+        ));
+
+        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(postController).build();
+
+        mockMvc.perform(MockMvcRequestBuilders.get("/posts"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().json(objectMapper.writeValueAsString(Arrays.asList(
+                        new Post(1L, "First post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User()),
+                        new Post(2L, "Second post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User())
+                ))));
+    }
+
+    @Test
+    void getPostById() throws Exception {
+        Long postId = 1L;
+        Optional<Post> post = Optional.of(new Post(postId, "First post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User()));
+        when(postService.getPostById(postId)).thenReturn(post);
+
+        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(postController).build();
+
+        mockMvc.perform(MockMvcRequestBuilders.get("/posts/{id}", postId))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().json(objectMapper.writeValueAsString(post.get())));
+    }
+
+    @Test
+    void createPost() throws Exception {
+        Post post = new Post(1L, "New post", LocalDateTime.now(), LocalDateTime.now(), 0L, 0L, 0L, new User());
+
+        when(postService.savePost(ArgumentMatchers.any(Post.class))).thenReturn(post);
+
+        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(postController)
+                .build();
+
+        mockMvc.perform(MockMvcRequestBuilders.post("/posts")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(new ObjectMapper().writeValueAsString(post))) // ObjectMapper를 사용하여 객체를 JSON 형식으로 변환
+                .andExpect(MockMvcResultMatchers.status().isCreated())
+                .andExpect(MockMvcResultMatchers.content().json(new ObjectMapper().writeValueAsString(post))); // ObjectMapper를 사용하여 객체를 JSON 형식으로 변환하여 비교
+    }
+
+
+    @Test
+    void deletePost() throws Exception {
+        Long postId = 1L;
+
+        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(postController).build();
+
+        mockMvc.perform(MockMvcRequestBuilders.delete("/posts/{id}", postId))
+                .andExpect(MockMvcResultMatchers.status().isNoContent());
+
+        verify(postService, times(1)).deletePost(postId);
+    }
+}