From 36c9d3c91a67390e352265ddbff4175ae07df398 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EB=8F=99=ED=9B=88?= <2dh2@naver.com>
Date: Sat, 27 Dec 2025 22:00:14 +0900
Subject: [PATCH 1/2] =?UTF-8?q?refactor:=20MDC=20=EC=A0=9C=EA=B1=B0,=20Log?=
 =?UTF-8?q?ger=EB=A1=9C=20=EC=97=90=EB=9F=AC=20=EC=8B=9C=EC=A0=90=20?=
 =?UTF-8?q?=EA=B5=AC=EB=B6=84=ED=95=A0=20=EC=88=98=20=EC=9E=88=EB=8F=84?=
 =?UTF-8?q?=EB=A1=9D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../exception/GlobalExceptionHandler.java     | 27 ++++++++++---------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/main/java/gg/agit/konect/global/exception/GlobalExceptionHandler.java b/src/main/java/gg/agit/konect/global/exception/GlobalExceptionHandler.java
index 26377ff3..5c48b57f 100644
--- a/src/main/java/gg/agit/konect/global/exception/GlobalExceptionHandler.java
+++ b/src/main/java/gg/agit/konect/global/exception/GlobalExceptionHandler.java
@@ -9,7 +9,8 @@
 import java.util.UUID;
 
 import org.apache.catalina.connector.ClientAbortException;
-import org.slf4j.MDC;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatusCode;
 import org.springframework.http.ResponseEntity;
@@ -29,7 +30,6 @@
 import org.springframework.web.util.WebUtils;
 
 import gg.agit.konect.global.code.ApiResponseCode;
-
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.extern.slf4j.Slf4j;
 
@@ -37,6 +37,8 @@
 @RestControllerAdvice
 public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 
+    private static final Logger RUNTIME_ERROR_LOGGER = LoggerFactory.getLogger("runtime.error");
+
     @ExceptionHandler(CustomException.class)
     public ResponseEntity<Object> handleCustomException(
         HttpServletRequest request,
@@ -147,20 +149,21 @@ public ResponseEntity<Object> handleException(HttpServletRequest request, Except
         StackTraceElement origin = e.getStackTrace()[0];
 
         String uri = String.format("%s %s", request.getMethod(), request.getRequestURI());
-        String location = String.format(
-            "%s:%d",
-            origin.getFileName(),
-            origin.getLineNumber()
-        );
         String exception = e.getClass().getSimpleName();
+        String location = String.format("%s:%d", origin.getFileName(), origin.getLineNumber());
         String message = e.getMessage();
 
-        MDC.put("uri", uri);
-        MDC.put("location", location);
-        MDC.put("exception", exception);
-        MDC.put("message", message);
+        String slackMessage = String.format(
+            """
+            URI: `%s`
+            Location: `%s`
+            Exception: `%s`
+            ```%s```
+            """,
+            uri, location, exception, message
+        );
 
-        log.error("URI: {} | Location: {} | Exception: {} | Message: {}", uri, location, exception, message);
+        RUNTIME_ERROR_LOGGER.error(slackMessage);
 
         return buildErrorResponse(ApiResponseCode.UNEXPECTED_SERVER_ERROR);
     }

From 4a9f01a9a23245b7dc27b57813e15d9c15d172b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EB=8F=99=ED=9B=88?= <2dh2@naver.com>
Date: Sat, 27 Dec 2025 22:00:38 +0900
Subject: [PATCH 2/2] =?UTF-8?q?refactor:=20=EC=95=A0=ED=94=8C=EB=A6=AC?=
 =?UTF-8?q?=EC=BC=80=EC=9D=B4=EC=85=98=20=EC=8B=A4=ED=96=89=20=EC=8B=9C?=
 =?UTF-8?q?=EC=A0=90=EC=97=90=20=EB=8C=80=ED=95=9C=20=EC=97=90=EB=9F=AC=20?=
 =?UTF-8?q?=EC=95=8C=EB=A6=BC=20=EB=B6=84=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/resources/logback-spring.xml | 33 ++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/src/main/resources/logback-spring.xml b/src/main/resources/logback-spring.xml
index 181225bf..c0c4d09f 100644
--- a/src/main/resources/logback-spring.xml
+++ b/src/main/resources/logback-spring.xml
@@ -13,18 +13,31 @@
         </encoder>
     </appender>
 
-    <appender name="SLACK" class="com.github.maricn.logback.SlackAppender">
+    <appender name="SLACK_STARTUP" class="com.github.maricn.logback.SlackAppender">
         <webhookUri>${SLACK_WEBHOOK_ERROR}</webhookUri>
         <layout class="ch.qos.logback.classic.PatternLayout">
             <pattern><![CDATA[
 :rotating_light: *서버에서 에러가 발생했습니다!* :rotating_light:%n
-URI: `%mdc{uri}`%n
-Location: `%mdc{location}`%n
-Exception: `%mdc{exception}`%n
-```%mdc{message}```
+`%msg`%n
+%rootException{1}%n
 ]]></pattern>
         </layout>
         <colorCoding>true</colorCoding>
+    </appender>
+
+    <appender name="SLACK_RUNTIME" class="com.github.maricn.logback.SlackAppender">
+        <webhookUri>${SLACK_WEBHOOK_ERROR}</webhookUri>
+        <layout class="ch.qos.logback.classic.PatternLayout">
+            <pattern><![CDATA[
+:rotating_light: *서버에서 에러가 발생했습니다!* :rotating_light:%n
+%msg
+]]></pattern>
+        </layout>
+        <colorCoding>true</colorCoding>
+    </appender>
+
+    <appender name="ASYNC_SLACK_STARTUP" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="SLACK_STARTUP"/>
         <filter class="ch.qos.logback.classic.filter.LevelFilter">
             <level>ERROR</level>
             <onMatch>ACCEPT</onMatch>
@@ -32,8 +45,8 @@ Exception: `%mdc{exception}`%n
         </filter>
     </appender>
 
-    <appender name="ASYNC_SLACK" class="ch.qos.logback.classic.AsyncAppender">
-        <appender-ref ref="SLACK"/>
+    <appender name="ASYNC_SLACK_RUNTIME" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="SLACK_RUNTIME"/>
         <filter class="ch.qos.logback.classic.filter.LevelFilter">
             <level>ERROR</level>
             <onMatch>ACCEPT</onMatch>
@@ -41,8 +54,12 @@ Exception: `%mdc{exception}`%n
         </filter>
     </appender>
 
+    <logger name="runtime.error" level="ERROR" additivity="false">
+        <appender-ref ref="ASYNC_SLACK_RUNTIME"/>
+    </logger>
+
     <root level="INFO">
         <appender-ref ref="STDOUT"/>
-        <appender-ref ref="ASYNC_SLACK"/>
+        <appender-ref ref="ASYNC_SLACK_STARTUP"/>
     </root>
 </configuration>