익명의 메모 만들기 24시간 이내 조회 포함 완료_13일차

week03/src/main/java/com/spring/week03/Week03Application.java

@@ -1,8 +1,11 @@
 package com.spring.week03;
 
 import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
+@EnableJpaAuditing // JPA auditing 넣어줘야함!
 @SpringBootApplication
 public class Week03Application {
 

week03/src/main/java/com/spring/week03/controller/MemoController.java

@@ -0,0 +1,45 @@
+package com.spring.week03.controller;
+
+import com.spring.week03.domain.Memo;
+import com.spring.week03.domain.MemoRepository;
+import com.spring.week03.domain.MemoRequestDto;
+import com.spring.week03.service.MemoService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+@RequiredArgsConstructor
+@RestController
+public class MemoController {
+
+    private final MemoRepository memoRepository;
+    private final MemoService memoService;
+
+
+
+    @PostMapping("/api/memos")
+    public Memo createMemo(@RequestBody MemoRequestDto requestDto){
+        Memo memo = new Memo(requestDto);
+        return memoRepository.save(memo);
+    }
+
+    @GetMapping("/api/memos")
+    public List<Memo> readMemo(){
+        LocalDateTime start =  LocalDateTime.now().minusDays(1);
+        LocalDateTime end = LocalDateTime.now();
+        return memoRepository.findAllByModifiedAtBetweenOrderByModifiedAtDesc(start, end);
+    }
+
+    @PutMapping("/api/memos/{id}")
+    public Long updateMemo(@PathVariable Long id, @RequestBody MemoRequestDto requestDto){
+        return memoService.update(id, requestDto);
+    }
+
+    @DeleteMapping("/api/memos/{id}")
+    public Long deleteMemo(@PathVariable Long id){
+        memoRepository.deleteById(id);
+        return id;
+    }
+}

week03/src/main/java/com/spring/week03/domain/Memo.java

@@ -28,4 +28,9 @@ public Memo(MemoRequestDto requestDto) {
         this.username = requestDto.getUsername();
         this.contents = requestDto.getContents();
     }
+
+    public void update(MemoRequestDto requestDto) {
+        this.username = requestDto.getUsername();
+        this.contents = requestDto.getContents();
+    }
 }

week03/src/main/java/com/spring/week03/domain/MemoRepository.java

@@ -2,11 +2,12 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 public interface MemoRepository extends JpaRepository<Memo, Long> {
     // JPA의 메서드는 이름에 따라 기능을 바꿀 수 있다. 북마크에 저장된 문서 참조!
     // Memo class가 Timestamped를 상속받고 있기 때문에 ModifiedAt을 사용할 수 있는 것이다.
     // 아래 메서드는 모든 것을 찾되, 수정된 날짜를 역순으로 정렬해서 찾아라는 뜻!
-    List<Memo> findAllByOrderByModifiedAtDesc();
+    List<Memo> findAllByModifiedAtBetweenOrderByModifiedAtDesc(LocalDateTime startDate, LocalDateTime endDate);
 }

week03/src/main/java/com/spring/week03/domain/Timestamped.java

@@ -1,5 +1,6 @@
 package com.spring.week03.domain;
 
+import lombok.Getter;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
@@ -8,6 +9,7 @@
 import javax.persistence.MappedSuperclass;
 import java.time.LocalDateTime;
 
+@Getter // private일 때는 Getter 꼭 써줘야한다!
 @MappedSuperclass // Entity가 자동으로 컬럼으로 인식합니다.
 @EntityListeners(AuditingEntityListener.class) // 생성/변경 시간을 자동으로 업데이트합니다.
 public class Timestamped {

week03/src/main/java/com/spring/week03/service/MemoService.java

@@ -0,0 +1,25 @@
+package com.spring.week03.service;
+
+import com.spring.week03.domain.Memo;
+import com.spring.week03.domain.MemoRepository;
+import com.spring.week03.domain.MemoRequestDto;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import javax.transaction.Transactional;
+
+@RequiredArgsConstructor
+@Service
+public class MemoService {
+
+    private final MemoRepository memoRepository;
+
+    @Transactional // DB에 반영시켜줘!
+    public Long update(Long id, MemoRequestDto requestDto) {
+        Memo memo = memoRepository.findById(id).orElseThrow(
+                () -> new IllegalArgumentException("아이디가 존재하지 않습니다.")
+        );
+        memo.update(requestDto);
+        return memo.getId();
+    }
+}