my-project-backend/src/main/java/com/example/entity/dto/TopicComment.java

@@ -8,7 +8,7 @@ import lombok.Data;
 import java.util.Date;
 
 @Data
-@TableName("db_topic_comments")
+@TableName("db_topic_comment")
 public class TopicComment {
     @TableId(type = IdType.AUTO)
     Integer id;

my-project-backend/src/main/java/com/example/mapper/TopicMapper.java

@@ -43,7 +43,7 @@ public interface TopicMapper extends BaseMapper<Topic> {
     int userInteractCount(int tid, int uid, String type);
 
     @Select("""
-            select * from db_topic_interact_collect left join db_topic on tid = id where db_topic_interact_collect.uid = #{uid}
+            select * from db_topic_interact_collect right join  db_topic on tid = id where db_topic_interact_collect.uid = #{uid}
             """)
     List<Topic> collectTopics(int uid);
 }