1.add getCollectLatestImage interface

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

@@ -37,6 +37,7 @@ import constants.Constants;
 import dto.UserLoginDto;
 import enums.CollectTypeEnum;
 import util.JwtUtil;
+import util.StringTools;
 
 /**
  * 控制器层
@@ -139,6 +140,27 @@ public class JournalController {
 		return songController.getCollectSongs(user.getUserId(), queryReq.getUserId(),objectIds, true);
 	}
 	
+	@ApiOperation(value = "2.2 获取用户收藏最新一期的期刊封面")
+	@GetMapping("/collectLatestImage/{userId}")
+	@GlobalInterceptor(checkAppUserLogin = true)
+	public Result<String> collectLatestImage(
+			@RequestHeader(value = "Authorization", required = true) String authorization,
+			@PathVariable @VerifyParam(required = true) String userId) {
+		String objectId=getCollectLatest(userId);
+		if (StringTools.isEmpty(objectId)) {
+			return Result.success(null);
+		}
+		JournalRespDTO journalRespDTO=journalService.queryJournalById(objectId);
+		if(null==journalRespDTO) {
+			return Result.success(null); 
+		}
+		return Result.success(journalRespDTO.getImage());
+	}
+	
+	private String getCollectLatest(String userId) {
+		return userCollectInfoService.getCollectLatest(userId, CollectTypeEnum.JOURNAL);
+	}
+
 	private List<String> getJournalObjectIds(CollectQueryReq queryReq) {
 		List<String> jouranlIds=userCollectInfoService.findByUserIdAndCollectType(queryReq.getUserId(), CollectTypeEnum.JOURNAL);
 		return journalService.orderByJournalIdField(jouranlIds);

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

@@ -15,4 +15,6 @@ public interface UserCollectInfoDao extends MongoRepository<UserCollectInfo, Str
 
 	List<UserCollectInfo> findByUserIdAndCollectTypeAndObjectIdIn(String userId, Integer collectType,
 			List<String> objectIds);
+	
+	UserCollectInfo findFirstByUserIdAndCollectTypeOrderByCreateTimeDesc(String userId, Integer collectType);
 }

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

@@ -62,4 +62,9 @@ public class UserCollectInfoService {
 		return userCollectInfoDao.findByUserIdAndCollectTypeAndObjectIdIn(userId,
 				collectTypeEnum.getType(),objectIds).stream().map(UserCollectInfo::getObjectId).collect(Collectors.toList());
 	}
+
+	public String getCollectLatest(String userId, CollectTypeEnum collectTypeEnum) {
+		UserCollectInfo userCollectInfo=userCollectInfoDao.findFirstByUserIdAndCollectTypeOrderByCreateTimeDesc(userId, collectTypeEnum.getType());
+		return null==userCollectInfo?null:userCollectInfo.getObjectId();
+	}
 }