[백엔드 9기 이재연] 3주차 과제 제출

src/main/java/kr/megaptera/assignment/AssignmentApplication.java

@@ -2,12 +2,26 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @SpringBootApplication
 public class AssignmentApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(AssignmentApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(AssignmentApplication.class, args);
+    }
 
+    @Bean
+    public WebMvcConfigurer corsConfigurer() {
+        return new WebMvcConfigurer() {
+            @Override
+            public void addCorsMappings(CorsRegistry registry) {
+                registry.addMapping("/**")
+                        .allowedOrigins("http://localhost:8000")
+                        .allowedMethods("GET", "POST", "PUT", "DELETE");
+            }
+        };
+    }
 }

src/main/java/kr/megaptera/assignment/controllers/CommentController.java

@@ -1,12 +1,64 @@
 package kr.megaptera.assignment.controllers;
 
 import kr.megaptera.assignment.dtos.CommentDto;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.ArrayList;
 import java.util.List;
 
+@RestController
+@RequestMapping("/comments")
 public class CommentController {
     private Long newId = 0L;
 
     private List<CommentDto> commentDtos = new ArrayList<>();
+
+    @GetMapping()
+    public List<CommentDto> getCommentList(@RequestParam String postId) {
+        return this.commentDtos.stream()
+                .filter(comment -> comment.getPostId().equals(postId))
+                .toList();
+    }
+
+    @PostMapping()
+    @ResponseStatus(HttpStatus.CREATED)
+    public String createComment(@RequestParam String postId, @RequestBody CommentDto commentDto) {
+        commentDto.setId(String.valueOf(newId++));
+        commentDto.setPostId(postId);
+        this.commentDtos.add(commentDto);
+        return "Complete!";
+    }
+
+    @PutMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void updateComment(@PathVariable String id,
+                              @RequestParam String postId,
+                              @RequestBody CommentDto commentDto) {
+        this.commentDtos.stream()
+                .filter(comment -> comment.getId().equals(id))
+                .findFirst()
+                .ifPresent(comment -> {
+                    comment.setId(id);
+                    comment.setContent(commentDto.getContent());
+                    comment.setPostId(postId);
+                });
+
+    }
+
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void deleteComment(@PathVariable String id) {
+        this.commentDtos.removeIf(comment -> comment.getId().equals(id));
+    }
 }

src/main/java/kr/megaptera/assignment/controllers/PostController.java

@@ -1,12 +1,63 @@
 package kr.megaptera.assignment.controllers;
 
 import kr.megaptera.assignment.dtos.PostDto;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.ArrayList;
 import java.util.List;
 
+@RestController
+@RequestMapping("/posts")
 public class PostController {
     private Long newId = 0L;
 
     private List<PostDto> postDtos = new ArrayList<>();
+
+    @GetMapping
+    public List<PostDto> getPostList() {
+        return this.postDtos;
+    }
+
+    @GetMapping("/{id}")
+    public PostDto getPost(@PathVariable String id) {
+        return this.postDtos.stream()
+                .filter(postDto -> postDto.getId().equals(id))
+                .findFirst()
+                .orElse(null);
+    }
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    public String createPost(@RequestBody PostDto postDto) {
+        postDto.setId(String.valueOf(newId++));
+        this.postDtos.add(postDto);
+        return "Complete!";
+    }
+
+    @PutMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void updatePost(@PathVariable String id, @RequestBody PostDto postDto) {
+        this.postDtos.stream().filter(post -> post.getId().equals(id))
+                .findFirst()
+                .ifPresent(post -> {
+                    post.setId(postDto.getId());
+                    post.setTitle(postDto.getTitle());
+                    post.setContent(postDto.getContent());
+                });
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void deletePost(@PathVariable String id) {
+        this.postDtos.removeIf(postDto -> postDto.getId().equals(id));
+    }
 }

src/main/java/kr/megaptera/assignment/dtos/CommentDto.java

@@ -1,4 +1,39 @@
 package kr.megaptera.assignment.dtos;
 
 public class CommentDto {
+
+    // id
+    private String id;
+    // postId
+    private String postId;
+    // content
+    private String content;
+
+    // JavaBeans convention : 기본 생성자
+    public CommentDto() {
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getPostId() {
+        return postId;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public void setPostId(String postId) {
+        this.postId = postId;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
 }

src/main/java/kr/megaptera/assignment/dtos/PostDto.java

@@ -1,4 +1,39 @@
 package kr.megaptera.assignment.dtos;
 
 public class PostDto {
+
+    // id
+    private String id;
+    // title
+    private String title;
+    // content
+    private String content;
+
+    // JavaBeans convention : 기본 생성자
+    public PostDto() {
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
 }