diff --git a/src/main/java/com/eactive/eai/adapter/controller/ApiRequestBodyFilter.java b/src/main/java/com/eactive/eai/adapter/controller/ApiRequestBodyFilter.java
index 4e13781..b2b887f 100644
--- a/src/main/java/com/eactive/eai/adapter/controller/ApiRequestBodyFilter.java
+++ b/src/main/java/com/eactive/eai/adapter/controller/ApiRequestBodyFilter.java
@@ -1,20 +1,28 @@
 package com.eactive.eai.adapter.controller;
 
-import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.charset.Charset;
 
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
+import javax.servlet.ServletInputStream;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import org.apache.commons.lang3.StringUtils;
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
 import org.json.simple.JSONValue;
-import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
+import com.eactive.eai.adapter.AdapterGroupVO;
+import com.eactive.eai.adapter.AdapterManager;
+import com.eactive.eai.adapter.http.dynamic.HttpDynamicInAdapterManager;
+import com.eactive.eai.adapter.http.dynamic.HttpDynamicInAdapterUri;
+import com.eactive.eai.common.stdmessage.STDMessageManager;
+import com.eactive.eai.common.stdmessage.STDMsgInfoAddOnVO;
+
 
 public class ApiRequestBodyFilter extends OncePerRequestFilter {
 
@@ -23,63 +31,119 @@ public class ApiRequestBodyFilter extends OncePerRequestFilter {
                                     HttpServletResponse response,
                                     FilterChain filterChain)
             throws ServletException, IOException {
+    	
 
-    	// 1. 필터 대상
+
+    	String encoding = getInboundGroupAdapterEncoding(request);
+    	
         if (!isTarget(request)) {
             filterChain.doFilter(request, response);
             return;
         }
 
-        // 2. 요청 전문 읽기
-        String body = readBody(request);
-        if (body == null || body.isEmpty()) {
+        //원본 바디를 byte[]로 읽기 (개행 포함 그대로) 왜? 뒤에 필터에서 HMAC값 계산할수도 있어서 변조되면 안됨. 개행문자도 그대로 가야함.
+        byte[] rawBody = readBodyAsBytes(request);
+
+        if (rawBody == null || rawBody.length == 0) {
             filterChain.doFilter(request, response);
             return;
         }
 
-        String modifiedBody = body;
+        byte[] finalBody = rawBody;
 
         try {
-            Object json = JSONValue.parse(body);
 
-            // 3. 예제: ROOTLESS ARRAY 보정
+            String bodyStr = new String(rawBody, encoding);
+            Object json = JSONValue.parse(bodyStr);
+
             if (json instanceof JSONArray) {
                 JSONObject wrap = new JSONObject();
                 wrap.put("KJB_ROOTLESS_ARRAY", json);
-                modifiedBody = wrap.toJSONString();
+                finalBody = wrap.toJSONString().getBytes(encoding);
             }
 
         } catch (Exception e) {
-            // 변조 실패 → 원본 유지
-            modifiedBody = body;
+            // JSON 파싱 실패 시 원본 유지
+            finalBody = rawBody;
         }
-        
-        byte[] bytes = modifiedBody.getBytes(request.getCharacterEncoding() != null ? request.getCharacterEncoding() : Charset.defaultCharset().name() );
 
-        // 5. Wrapper로 재주입
+        // Wrapper로 재주입
         HttpServletRequest wrapped =
-                new CachedBodyHttpServletRequest(request, bytes);
+                new CachedBodyHttpServletRequest(request, finalBody);
 
         filterChain.doFilter(wrapped, response);
     }
 
     private boolean isTarget(HttpServletRequest request) {
         String uri = request.getRequestURI();
-
-
         return ("POST".equals(request.getMethod()) || "PUT".equals(request.getMethod()))
-                && (uri.startsWith("/api") || uri.startsWith("/mapi") ) && !uri.startsWith("/mapi/oauth2/token");
+                && (uri.startsWith("/api") || uri.startsWith("/mapi"))
+                && !uri.startsWith("/mapi/oauth2/token");
     }
 
-    private String readBody(HttpServletRequest request) throws IOException {
-        StringBuilder sb = new StringBuilder();
-        try (BufferedReader br = request.getReader()) {
-            String line;
-            while ((line = br.readLine()) != null) {
-                sb.append(line);
+
+    private byte[] readBodyAsBytes(HttpServletRequest request) throws IOException {
+        try (ServletInputStream is = request.getInputStream();
+             ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
+
+            byte[] buffer = new byte[4096];
+            int len;
+            while ((len = is.read(buffer)) != -1) {
+                baos.write(buffer, 0, len);
+            }
+            return baos.toByteArray();
+        }
+    }
+    
+    private String getInboundGroupAdapterEncoding(HttpServletRequest request) {
+    	String apiUri = request.getRequestURI();
+        apiUri = StringUtils.removeStart(apiUri, request.getContextPath());
+        apiUri = StringUtils.removeEnd(apiUri, "/");
+
+        String methodAndUri = request.getMethod() + "|" + apiUri;
+        String adapterGrpName;
+        HttpDynamicInAdapterUri adptUri = null;
+        
+        try {
+    		STDMessageManager manager = STDMessageManager.getInstance();
+        	STDMsgInfoAddOnVO stdMsgInfo = manager.getStdMsgInfoAddOn(methodAndUri);
+        	adapterGrpName = stdMsgInfo.gAdapterGroupName();
+        	
+            adptUri = findAdptUri(apiUri, HttpDynamicInAdapterManager.getInstance(), adapterGrpName);
+        } catch (Exception e) {
+        	adptUri = null;
+        }
+        
+        AdapterGroupVO adapterGroupVO = AdapterManager.getInstance().getAdapterGroupVO( adptUri.getAdptGrpName());
+        
+        if( adapterGroupVO == null ) {
+        	return Charset.defaultCharset().name();
+        }
+        
+        return StringUtils.isNotBlank(adapterGroupVO.getMessageEncode()) ? adapterGroupVO.getMessageEncode() : Charset.defaultCharset().name(); //서버 jvm file.encoding 확인, file.encoding=utf-8 주고있음.
+    	
+    }
+    
+    private HttpDynamicInAdapterUri findAdptUri(String apiUri, HttpDynamicInAdapterManager manager, String adapterGrpName) throws Exception {
+        if (StringUtils.isBlank(apiUri)) {
+            return null;
+        }      
+        
+
+        for (int i = 0; i < 10; i++) {
+            HttpDynamicInAdapterUri adptUri = manager.getAdptUri(apiUri);
+            if (adptUri != null) {
+            	if (adptUri.getAdptGrpName().equals(adapterGrpName)) {
+            		return adptUri;
+            	}
+            }
+
+            apiUri = StringUtils.substringBeforeLast(apiUri, "/");
+            if (apiUri.length() < 4) { // /api
+                return null;
             }
         }
-        return sb.toString();
-    }
 
-}
\ No newline at end of file
+        return null;
+    }
+}