[202202602 손예진] CRUD 과제

src/main/java/com/com/cnu/devlog_springboot/controller/ProjectController.java

@@ -0,0 +1,53 @@
+package com.com.cnu.devlog_springboot.controller;
+
+import com.com.cnu.devlog_springboot.model.Post;
+import com.com.cnu.devlog_springboot.model.Project;
+import com.com.cnu.devlog_springboot.model.request.ProjectRequest;
+import com.com.cnu.devlog_springboot.service.ProjectService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/projects")
+@RequiredArgsConstructor
+public class ProjectController {
+    private final ProjectService projectService;
+
+    // GET /projects
+    @GetMapping
+    public ResponseEntity<List<Project>> getProjects() {
+        return ResponseEntity.ok(projectService.getProjects());
+    }
+
+    // GET /projects/{projectId}
+    @GetMapping("{projectId}")
+    public ResponseEntity<Project> getProject(@PathVariable("projectId")Integer projectId) {
+        return ResponseEntity.ok(projectService.getProject(projectId));
+    }
+
+    // POST /projects
+    @PostMapping
+    public ResponseEntity<Project> createProject(@RequestBody ProjectRequest projectRequest) {
+        return ResponseEntity.ok(projectService.createProject(projectRequest));
+    }
+
+    // PUT /projects/{projectId}
+    // ex. localhost:8080/projects/3
+    @PutMapping("{projectId}")
+    public ResponseEntity<Project> updateProject(
+            @PathVariable("projectId")Integer projectId,
+            @RequestBody ProjectRequest projectRequest
+    ) {
+        return ResponseEntity.ok(projectService.updateProject(projectId, projectRequest));
+    }
+
+    // DELETE /projects/{projectId}
+    @DeleteMapping("{projectId}")
+    public ResponseEntity<Void> deleteProject(@PathVariable("projectId") Integer projectId) {
+        projectService.deleteProject(projectId);
+        return ResponseEntity.noContent().build();
+    }
+}

src/main/java/com/com/cnu/devlog_springboot/repository/ProjectRepository.java

@@ -0,0 +1,9 @@
+package com.com.cnu.devlog_springboot.repository;
+
+import com.com.cnu.devlog_springboot.model.Project;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ProjectRepository extends JpaRepository<Project, Integer> {
+}

src/main/java/com/com/cnu/devlog_springboot/service/ProjectService.java

@@ -0,0 +1,51 @@
+package com.com.cnu.devlog_springboot.service;
+
+import com.com.cnu.devlog_springboot.model.Project;
+import com.com.cnu.devlog_springboot.model.request.ProjectRequest;
+import com.com.cnu.devlog_springboot.repository.ProjectRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class ProjectService {
+    private final ProjectRepository projectRepository;
+
+    public List<Project> getProjects() { return projectRepository.findAll(); }
+
+    public Project createProject(ProjectRequest projectRequest) {
+        return projectRepository.save(new Project(
+                null,
+                projectRequest.title(),
+                projectRequest.summary(),
+                projectRequest.contents(),
+                projectRequest.startDate(),
+                projectRequest.endDate()
+        ));
+    }
+
+    public Project updateProject(Integer projectId, ProjectRequest projectRequest) {
+        return projectRepository.findById(projectId)
+                .map(project -> {
+                    project.setTitle(projectRequest.title());
+                    project.setSummary(projectRequest.summary());
+                    project.setContents(projectRequest.contents());
+                    project.setStartDate(projectRequest.startDate());
+                    project.setEndDate(projectRequest.endDate());
+                    return projectRepository.save(project);
+                })
+                .orElse(null);
+    }
+
+    public Project getProject(Integer projectId) {
+        return projectRepository.findById(projectId)
+                .orElse(null);
+    }
+
+    public void deleteProject(Integer projectId) {
+        projectRepository.findById(projectId)
+                .ifPresent(projectRepository::delete);
+    }
+}