1.improve the performance of fuzzy search

luoo_music/src/main/java/com/luoo/music/controller/SearchController.java

@@ -78,7 +78,7 @@ public class SearchController {
 			@VerifyParam(required = true) FuzzySearchReq query) throws InterruptedException, ExecutionException {
 		PageRequest pageRequest =  PageRequest.of(getPageNum(query.getPageNum()), getPageSize(query.getPageSize()));
 	    
-		Page<SongInfo> pageResults=songInfoService.fuzzySearch(query.getKeyword(),pageRequest);
+		List<SongInfo> pageResults=songInfoService.fuzzySearch(query.getKeyword(),pageRequest);
 		List<SongRespDTO> list = pageResults.stream().map(SongMapper::getSongRespDTO)
 				.collect(Collectors.toList());
 		return Result.success(new PageResult<SongRespDTO>(Long.valueOf(list.size()), list));
@@ -99,7 +99,7 @@ public class SearchController {
 			@RequestHeader(value = "Authorization", required = false) String authorization,
 			@VerifyParam(required = true) FuzzySearchReq query) throws InterruptedException, ExecutionException {
 		PageRequest pageRequest =  PageRequest.of(getPageNum(query.getPageNum()), getPageSize(query.getPageSize()));
-		Page<Journal> pageResults=journalService.fuzzySearch(query.getKeyword(),pageRequest);
+		List<Journal> pageResults=journalService.fuzzySearch(query.getKeyword(),pageRequest);
 		List<JournalRespDTO> list = pageResults.stream().map(JournalMapper::getJournalRespDTO)
 				.collect(Collectors.toList());
 		return Result.success(new PageResult<JournalRespDTO>(Long.valueOf(list.size()), list));

luoo_music/src/main/java/com/luoo/music/dao/JournalDao.java

@@ -82,5 +82,8 @@ public interface JournalDao extends JpaRepository<Journal,String>,JpaSpecificati
     
     @Query(value = "select * from tb_journal where state='1' and is_publish='1'", nativeQuery = true)
 	List<Journal> findValidJournals();
+
+    @Query(value = "select * from tb_journal where match(journal_no, title) against(?1) limit ?2,?3 ", nativeQuery = true)
+	List<Journal> fuzzySearch(String keyword, int offset, int limit);
 }
 

luoo_music/src/main/java/com/luoo/music/dao/SongInfoDao.java

@@ -38,4 +38,7 @@ public interface SongInfoDao extends JpaRepository<SongInfo,String>, JpaSpecific
     
     @Query(value = "select * from tb_song_info where state='1' ", nativeQuery = true)
     List<SongInfo> findValidSongs();
+    
+    @Query(value = "select * from tb_song_info where match(name, artist, album) against(?1) limit ?2,?3 ", nativeQuery = true)
+    List<SongInfo> fuzzySearch(String keyword,int offset, int limit);
 }

luoo_music/src/main/java/com/luoo/music/service/JournalService.java

@@ -284,10 +284,18 @@ public class JournalService {
 	}
 
 
-	public Page<Journal> fuzzySearch(String keyword, PageRequest pageRequest) {
+	public List<Journal> fuzzySearch(String keyword, PageRequest pageRequest) {
+		if(keyword.length()==1) {
+			return searchByLike(keyword,pageRequest);
+		}
+		return journalDao.fuzzySearch(keyword, pageRequest.getPageNumber()*pageRequest.getPageSize(), pageRequest.getPageSize());
+	}
+	private List<Journal> searchByLike(String keyword, PageRequest pageRequest) {
 		Specification<Journal> specification = fuzzySpecification(keyword);
-		return journalDao.findAll(specification,pageRequest);
+		return journalDao.findAll(specification,pageRequest).getContent();
 	}
+
+
 	private Specification<Journal> fuzzySpecification(String keyword) {
 		return new Specification<Journal>() {
 			private static final long serialVersionUID = 1L;

luoo_music/src/main/java/com/luoo/music/service/SongInfoService.java

@@ -35,11 +35,18 @@ public class SongInfoService {
 		return songInfoDao.getSongById(id);
 	}
 
-	public Page<SongInfo> fuzzySearch(String keyword, PageRequest pageRequest) {
+	public List<SongInfo> fuzzySearch(String keyword, PageRequest pageRequest) {
-		Specification<SongInfo> specification = fuzzySpecification(keyword);
+		if(keyword.length()==1) {
-		return songInfoDao.findAll(specification,pageRequest);
+			return searchByLike(keyword,pageRequest);
+		}
+		return songInfoDao.fuzzySearch(keyword, pageRequest.getPageNumber()*pageRequest.getPageSize(), pageRequest.getPageSize());
 	}
 	
+	private List<SongInfo> searchByLike(String keyword, PageRequest pageRequest) {
+		Specification<SongInfo> specification = fuzzySpecification(keyword);
+		return songInfoDao.findAll(specification,pageRequest).getContent();
+	}
+
 	private Specification<SongInfo> fuzzySpecification(String keyword) {
 		return new Specification<SongInfo>() {
 			private static final long serialVersionUID = 1L;