diff --git a/src/main/java/io/company/localhost/controller/api/BoardController.java b/src/main/java/io/company/localhost/controller/api/BoardController.java
index 19603ab..e338029 100644
--- a/src/main/java/io/company/localhost/controller/api/BoardController.java
+++ b/src/main/java/io/company/localhost/controller/api/BoardController.java
@@ -109,20 +109,32 @@ public class BoardController {
     }
     // 게시물 상세보기
     @GetMapping("/{boardId}")
-    public ApiResponse<Map<String, Object>> getBoardDetail(@PathVariable("boardId") Long boardId) {
+    public ApiResponse<MapDto> getBoardDetail(@PathVariable("boardId") Long boardId) {
         log.info("Fetching details for board ID: {}", boardId);
 
         // 게시물 상세정보 조회
         MapDto boardDetail = boardService.getBoardDetail(boardId);
+        if (boardDetail == null) {
+            throw new IllegalArgumentException("Board not found for ID: " + boardId);
+        }
 
-        // 첨부파일 목록 조회
+        // Blob 데이터를 문자열로 변환
+        if (boardDetail.get("content") instanceof Blob) {
+            try {
+                Blob blob = (Blob) boardDetail.get("content");
+                String contentString = new String(blob.getBytes(1, (int) blob.length()), StandardCharsets.UTF_8);
+                boardDetail.put("content", contentString);
+            } catch (Exception e) {
+                throw new RuntimeException("Failed to process Blob content", e);
+            }
+        }
+
+        // 첨부파일 및 댓글 조회
         List<MapDto> attachments = boardService.getAttachments(boardId);
-
-        // 댓글 목록 조회
         List<MapDto> comments = boardService.getComments(boardId.intValue());
 
         // 결과 조합
-        Map<String, Object> result = new HashMap<>();
+        MapDto result = new MapDto();
         result.put("boardDetail", boardDetail);
         result.put("attachments", attachments);
         result.put("comments", comments);
diff --git a/src/main/resources/mapper/LocalBordMapper.xml b/src/main/resources/mapper/LocalBordMapper.xml
index 0088287..4d4a0c4 100644
--- a/src/main/resources/mapper/LocalBordMapper.xml
+++ b/src/main/resources/mapper/LocalBordMapper.xml
@@ -46,7 +46,7 @@
 	
 	
 	<!-- 게시물 상세정보 조회 -->
-    <select id="selectBoardDetail" parameterType="long" resultType="map">
+    <select id="selectBoardDetail" resultType="io.company.localhost.common.dto.MapDto">
         SELECT LOCBRDSEQ AS id, LOCBRDTTL AS title, LOCBRDCON AS content, LOCBRDRDT AS date, LOCBRDTYP AS type
         FROM localbord
         WHERE LOCBRDSEQ = #{boardId}
@@ -54,7 +54,7 @@
 
 
     <!-- 첨부파일 목록 조회 -->
-    <select id="selectAttachments" parameterType="long" resultType="map">
+    <select id="selectAttachments" resultType="io.company.localhost.common.dto.MapDto">
         SELECT CMNFLESEQ AS id, CMNFLEORG AS originalName, CMNFLENAM AS fileName, CMNFLEPAT AS path,
                CMNFLEEXT AS extension, CMNFLESIZ AS size, CMNFLERDT AS uploadDate
         FROM commonfil
@@ -85,27 +85,27 @@
     <!-- 댓글/대댓글 조회 -->
     <select id="getComments" resultType="java.util.Map">
         SELECT LOCCMTSEQ, LOCBRDSEQ, LOCCMTRPY, LOCCMTPWD, LOCCMTRDT, LOCCMTPNT
-        FROM loccomt
+        FROM localcomt
         WHERE LOCBRDSEQ = #{LOCBRDSEQ}
         ORDER BY LOCCMTPNT ASC, LOCCMTRDT ASC
     </select>
 
     <!-- 댓글/대댓글 작성 -->
     <insert id="addCommentOrReply">
-        INSERT INTO loccomt (LOCBRDSEQ, LOCCMTRPY, LOCCMTPWD, LOCCMTRDT, LOCCMTPNT)
+        INSERT INTO localcomt (LOCBRDSEQ, LOCCMTRPY, LOCCMTPWD, LOCCMTRDT, LOCCMTPNT)
         VALUES (#{LOCBRDSEQ}, #{LOCCMTRPY}, #{LOCCMTPWD}, NOW(), #{LOCCMTPNT})
     </insert>
 
     <!-- 댓글/대댓글 수정 -->
     <update id="updateComment">
-        UPDATE loccomt
+        UPDATE localcomt
         SET LOCCMTRPY = #{LOCCMTRPY}, LOCCMTUDT = NOW()
         WHERE LOCCMTSEQ = #{LOCCMTSEQ} AND LOCCMTPWD = #{LOCCMTPWD}
     </update>
 
     <!-- 댓글/대댓글 삭제 -->
     <delete id="deleteComment">
-        DELETE FROM loccomt
+        DELETE FROM localcomt
         WHERE LOCCMTSEQ = #{LOCCMTSEQ} AND LOCCMTPWD = #{LOCCMTPWD}
     </delete>
 
@@ -116,7 +116,7 @@
 
     <!-- 비밀번호 확인 (댓글) -->
     <select id="checkCommentPassword" resultType="boolean">
-        SELECT COUNT(*) > 0 FROM loccomt WHERE LOCCMTSEQ = #{LOCCMTSEQ} AND LOCCMTPWD = #{LOCCMTPWD}
+        SELECT COUNT(*) > 0 FROM localcomt WHERE LOCCMTSEQ = #{LOCCMTSEQ} AND LOCCMTPWD = #{LOCCMTPWD}
     </select>
 
     <!-- 비밀 게시판 여부 확인 -->