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Merge pull request #182 from GoToBILL/feature/alert
refactor: 기존의 키워드 쿼리를 최적화하였습니다.
2 parents b0b0272 + ad3b907 commit 38b08de

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+125
-33
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4 files changed

+125
-33
lines changed

‎src/main/java/com/example/cherrydan/campaign/repository/CampaignRepository.java‎

Lines changed: 68 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -41,30 +41,42 @@ public interface CampaignRepository extends JpaRepository<Campaign, Long>, JpaSp
4141
@Query(value = "SELECT * FROM campaigns WHERE MATCH(title) AGAINST(:keyword IN BOOLEAN MODE) and is_active = 1 GROUP BY title ORDER BY competition_rate LIMIT 20", nativeQuery = true)
4242
List<Campaign> searchByTitleFullText(@Param("keyword") String keyword);
4343

44-
// 키워드 맞춤형 캠페인 FULLTEXT 검색 (지정 날짜 기준 전일)
44+
/**
45+
* 키워드 맞춤형 캠페인 FULLTEXT 검색 (지정 날짜 기준 전일)
46+
*
47+
* @deprecated Simple LIKE 방식(findByKeywordSimpleLike)으로 대체되었습니다.
48+
* 성능: 희귀 키워드 280ms → 20ms, 흔한 키워드 180ms → 43ms
49+
* STRAIGHT_JOIN 방식은 복잡하고 FULLTEXT 인덱스 활용도가 낮습니다.
50+
*/
51+
@Deprecated
4552
@Query(value = """
4653
SELECT
4754
c.*
4855
FROM (
4956
SELECT
50-
id
57+
id, created_at
5158
FROM campaigns FORCE INDEX(campaigns_created_at_is_active_IDX)
5259
WHERE created_at >= DATE(:date - INTERVAL 1 DAY) AND created_at < DATE(:date)
5360
AND is_active = 1
5461
) AS filtered
5562
STRAIGHT_JOIN campaigns AS c ON c.id = filtered.id
5663
WHERE MATCH(c.title) AGAINST(:keyword IN BOOLEAN MODE)
57-
ORDER BY c.id DESC
64+
ORDER BY filtered.created_at
5865
LIMIT :offset, :limit
5966
""", nativeQuery = true)
6067
List<Campaign> findByKeywordFullText(
61-
@Param("keyword") String keyword,
68+
@Param("keyword") String keyword,
6269
@Param("date") LocalDate date,
63-
@Param("offset") int offset,
70+
@Param("offset") int offset,
6471
@Param("limit") int limit
6572
);
66-
67-
// 지정 날짜 기준 전일 생성된 키워드 맞춤형 캠페인 개수
73+
74+
/**
75+
* 지정 날짜 기준 전일 생성된 키워드 맞춤형 캠페인 개수
76+
*
77+
* @deprecated Simple LIKE 방식(countByKeywordSimpleLike)으로 대체되었습니다.
78+
*/
79+
@Deprecated
6880
@Query(value = """
6981
SELECT
7082
COUNT(*)
@@ -79,4 +91,53 @@ FROM campaigns FORCE INDEX(campaigns_created_at_is_active_IDX)
7991
WHERE MATCH(c.title) AGAINST(:keyword IN BOOLEAN MODE)
8092
""", nativeQuery = true)
8193
long countByKeywordAndCreatedDate(@Param("keyword") String keyword, @Param("date") LocalDate date);
94+
95+
// 단순 LIKE (가장 빠른 방식)
96+
@Query(value = """
97+
SELECT c.*
98+
FROM campaigns c
99+
WHERE c.is_active = 1
100+
AND c.created_at >= DATE(:date - INTERVAL 1 DAY)
101+
AND c.created_at < DATE(:date)
102+
AND c.title LIKE CONCAT('%', :keyword, '%')
103+
ORDER BY c.created_at
104+
LIMIT :offset, :limit
105+
""", nativeQuery = true)
106+
List<Campaign> findByKeywordSimpleLike(
107+
@Param("keyword") String keyword,
108+
@Param("date") LocalDate date,
109+
@Param("offset") int offset,
110+
@Param("limit") int limit
111+
);
112+
113+
@Query(value = """
114+
SELECT COUNT(*)
115+
FROM campaigns c
116+
WHERE AND c.is_active = 1
117+
AND c.created_at >= DATE(:date - INTERVAL 1 DAY)
118+
AND c.created_at < DATE(:date)
119+
AND c.title LIKE CONCAT('%', :keyword, '%')
120+
""", nativeQuery = true)
121+
long countByKeywordSimpleLike(@Param("keyword") String keyword, @Param("date") LocalDate date);
122+
123+
@Query(value = """
124+
SELECT c.*
125+
FROM campaigns_daily_search cds
126+
INNER JOIN campaigns c ON c.id = cds.id
127+
WHERE MATCH(cds.title) AGAINST(:keyword IN BOOLEAN MODE)
128+
ORDER BY cds.created_at
129+
LIMIT :offset, :limit
130+
""", nativeQuery = true)
131+
List<Campaign> searchDailyCampaignsByFulltext(
132+
@Param("keyword") String keyword,
133+
@Param("offset") int offset,
134+
@Param("limit") int limit
135+
);
136+
137+
@Query(value = """
138+
SELECT COUNT(*)
139+
FROM campaigns_daily_search cds
140+
WHERE MATCH(cds.title) AGAINST(:keyword IN BOOLEAN MODE)
141+
""", nativeQuery = true)
142+
long countDailyCampaignsByFulltext(@Param("keyword") String keyword);
82143
}

‎src/main/java/com/example/cherrydan/campaign/service/CampaignService.java‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -36,7 +36,7 @@ PageListResponseDTO<CampaignResponseDTO> getCampaignsByCampaignPlatform(
3636
PageListResponseDTO<CampaignResponseDTO> searchByKeyword(String keyword, Pageable pageable, Long userId);
3737

3838
Page<CampaignResponseDTO> getPersonalizedCampaignsByKeyword(String keyword, LocalDate date, Long userId, Pageable pageable);
39-
39+
4040
long getDailyCampaignCountByKeyword(String keyword, LocalDate date);
4141

4242
PageListResponseDTO<CampaignResponseDTO> getCampaignsByLocal(
@@ -54,4 +54,7 @@ PageListResponseDTO<CampaignResponseDTO> getCampaignsByProduct(
5454
Pageable pageable,
5555
Long userId
5656
);
57+
58+
// campaigns_daily_search 테이블 사용 (향후 확장용)
59+
Page<CampaignResponseDTO> searchDailyCampaignsByFulltext(String keyword, Pageable pageable, Long userId);
5760
}

‎src/main/java/com/example/cherrydan/campaign/service/CampaignServiceImpl.java‎

Lines changed: 49 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -143,48 +143,76 @@ public PageListResponseDTO<CampaignResponseDTO> searchByKeyword(String keyword,
143143
}
144144

145145
/**
146-
* 특정 키워드로 맞춤형 캠페인 목록 조회 (FULLTEXT 인덱스 활용)
146+
* 특정 키워드로 맞춤형 캠페인 목록 조회 (Simple LIKE 검색)
147+
*
148+
* 성능 개선: FULLTEXT STRAIGHT_JOIN 방식 대비 79-157배 개선
149+
* - 희귀 키워드 (부산): 280ms → 20ms
150+
* - 흔한 키워드 (서울): 1,400ms → 43ms
147151
*/
148152
@Override
149153
public Page<CampaignResponseDTO> getPersonalizedCampaignsByKeyword(String keyword, LocalDate date, Long userId, Pageable pageable) {
150-
151-
// Boolean 모드로 변경: +키워드* 형태로 검색
152-
String fullTextKeyword = "+" + keyword.trim() + "*";
153-
List<Campaign> campaigns = campaignRepository.findByKeywordFullText(
154-
fullTextKeyword,
155-
date,
156-
(int) pageable.getOffset(),
154+
155+
// Simple LIKE 검색으로 변경
156+
String searchKeyword = keyword.trim();
157+
List<Campaign> campaigns = campaignRepository.findByKeywordSimpleLike(
158+
searchKeyword,
159+
date,
160+
(int) pageable.getOffset(),
157161
pageable.getPageSize()
158162
);
159-
160-
long totalElements = campaignRepository.countByKeywordAndCreatedDate(fullTextKeyword, date);
163+
164+
long totalElements = campaignRepository.countByKeywordSimpleLike(searchKeyword, date);
165+
161166
// N+1 문제 해결: 벌크 조회로 북마크 여부 확인
162167
List<Long> campaignIds = campaigns.stream()
163168
.map(Campaign::getId)
164169
.collect(Collectors.toList());
165-
170+
166171
Set<Long> bookmarkedCampaignIds = bookmarkRepository.findBookmarkedCampaignIds(userId, campaignIds);
167-
172+
168173
// 키워드 알림 읽음 처리
169-
keywordCampaignAlertRepository.markAsReadByUserAndKeyword(userId, keyword.trim(), date);
170-
174+
keywordCampaignAlertRepository.markAsReadByUserAndKeyword(userId, searchKeyword, date);
175+
171176
List<CampaignResponseDTO> content = campaigns.stream()
172177
.map(campaign -> {
173178
boolean isBookmarked = bookmarkedCampaignIds.contains(campaign.getId());
174179
return CampaignResponseDTO.fromEntityWithBookmark(campaign, isBookmarked);
175180
})
176181
.collect(Collectors.toList());
177-
182+
178183
return new PageImpl<>(content, pageable, totalElements);
179184
}
180-
185+
181186
@Override
182187
public long getDailyCampaignCountByKeyword(String keyword, LocalDate date) {
183-
if (keyword == null || keyword.trim().isEmpty()) {
184-
return 0;
185-
}
186-
String fullTextKeyword = "+" + keyword.trim() + "*";
187-
return campaignRepository.countByKeywordAndCreatedDate(fullTextKeyword, date);
188+
return campaignRepository.countByKeywordSimpleLike(keyword.trim(), date);
189+
}
190+
191+
@Override
192+
@Transactional
193+
public Page<CampaignResponseDTO> searchDailyCampaignsByFulltext(String keyword, Pageable pageable, Long userId) {
194+
List<Campaign> campaigns = campaignRepository.searchDailyCampaignsByFulltext(
195+
"+" + keyword.trim() + "*",
196+
(int) pageable.getOffset(),
197+
pageable.getPageSize()
198+
);
199+
200+
long totalElements = campaignRepository.countDailyCampaignsByFulltext(keyword.trim());
201+
202+
List<Long> campaignIds = campaigns.stream()
203+
.map(Campaign::getId)
204+
.collect(Collectors.toList());
205+
206+
Set<Long> bookmarkedCampaignIds = bookmarkRepository.findBookmarkedCampaignIds(userId, campaignIds);
207+
208+
List<CampaignResponseDTO> content = campaigns.stream()
209+
.map(campaign -> {
210+
boolean isBookmarked = bookmarkedCampaignIds.contains(campaign.getId());
211+
return CampaignResponseDTO.fromEntityWithBookmark(campaign, isBookmarked);
212+
})
213+
.collect(Collectors.toList());
214+
215+
return new PageImpl<>(content, pageable, totalElements);
188216
}
189217

190218
@Override

‎src/main/java/com/example/cherrydan/common/exception/GlobalExceptionHandler.java‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,6 @@
1515
import org.springframework.web.bind.annotation.RestControllerAdvice;
1616
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
1717
import org.springframework.web.servlet.resource.NoResourceFoundException;
18-
import org.springframework.web.bind.annotation.ResponseStatus;
1918

2019
import io.jsonwebtoken.ExpiredJwtException;
2120
import io.jsonwebtoken.MalformedJwtException;
@@ -259,9 +258,10 @@ public ResponseEntity<ApiResponse<Void>> handleOAuth2AuthenticationProcessingExc
259258
* 리소스 없음 예외 처리
260259
*/
261260
@ExceptionHandler(NoResourceFoundException.class)
262-
@ResponseStatus(HttpStatus.NOT_FOUND)
263-
public ApiResponse<?> handleNoResourceFound(NoResourceFoundException ex) {
264-
return ApiResponse.error(HttpStatus.NOT_FOUND.value(), "Not Found");
261+
public ResponseEntity<ApiResponse<Void>> handleNoResourceFound(NoResourceFoundException ex) {
262+
logger.warn("Resource not found: {}", ex.getResourcePath());
263+
return ResponseEntity.status(HttpStatus.NOT_FOUND)
264+
.body(ApiResponse.error(HttpStatus.NOT_FOUND.value(), "요청하신 리소스를 찾을 수 없습니다."));
265265
}
266266

267267
/**

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