From 6a81dae90bddcd31114690bbd79b58a2bb303f27 Mon Sep 17 00:00:00 2001
From: forge-bot <bot@forge.local>
Date: Tue, 14 Jul 2026 04:35:47 +0000
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---
 .../exception/GlobalExceptionHandler.java     | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 spring-runtime/spring-runtime-core/src/main/java/com/runtime/core/exception/GlobalExceptionHandler.java

diff --git a/spring-runtime/spring-runtime-core/src/main/java/com/runtime/core/exception/GlobalExceptionHandler.java b/spring-runtime/spring-runtime-core/src/main/java/com/runtime/core/exception/GlobalExceptionHandler.java
new file mode 100644
index 0000000..0fb26af
--- /dev/null
+++ b/spring-runtime/spring-runtime-core/src/main/java/com/runtime/core/exception/GlobalExceptionHandler.java
@@ -0,0 +1,95 @@
+package com.runtime.core.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 전역 예외 처리 핸들러
+ */
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(BusinessException.class)
+    public ResponseEntity<ErrorResponse> handleBusinessException(BusinessException ex) {
+        ErrorResponse error = ErrorResponse.builder()
+                .timestamp(LocalDateTime.now())
+                .status(ex.getStatus().value())
+                .error(ex.getErrorCode())
+                .message(ex.getMessage())
+                .build();
+        return ResponseEntity.status(ex.getStatus()).body(error);
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<ErrorResponse> handleValidationException(MethodArgumentNotValidException ex) {
+        Map<String, String> errors = new HashMap<>();
+        ex.getBindingResult().getAllErrors().forEach(error -> {
+            String fieldName = ((FieldError) error).getField();
+            String errorMessage = error.getDefaultMessage();
+            errors.put(fieldName, errorMessage);
+        });
+        ErrorResponse error = ErrorResponse.builder()
+                .timestamp(LocalDateTime.now())
+                .status(HttpStatus.BAD_REQUEST.value())
+                .error("VALIDATION_ERROR")
+                .message("입력 검증에 실패했습니다")
+                .validationErrors(errors)
+                .build();
+        return ResponseEntity.badRequest().body(error);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ErrorResponse> handleGenericException(Exception ex) {
+        ErrorResponse error = ErrorResponse.builder()
+                .timestamp(LocalDateTime.now())
+                .status(HttpStatus.INTERNAL_SERVER_ERROR.value())
+                .error("INTERNAL_ERROR")
+                .message("예상치 못한 오류가 발생했습니다")
+                .build();
+        return ResponseEntity.internalServerError().body(error);
+    }
+}
+
+/**
+ * 비즈니스 예외 기본 클래스
+ */
+class BusinessException extends RuntimeException {
+    private final HttpStatus status;
+    private final String errorCode;
+
+    public BusinessException(String message, HttpStatus status, String errorCode) {
+        super(message);
+        this.status = status;
+        this.errorCode = errorCode;
+    }
+
+    public BusinessException(String message, HttpStatus status) {
+        this(message, status, "BUSINESS_ERROR");
+    }
+
+    public HttpStatus getStatus() { return status; }
+    public String getErrorCode() { return errorCode; }
+}
+
+/**
+ * 표준 에러 응답 DTO
+ */
+@lombok.Data
+@lombok.Builder
+@lombok.AllArgsConstructor
+@lombok.NoArgsConstructor
+class ErrorResponse {
+    private LocalDateTime timestamp;
+    private int status;
+    private String error;
+    private String message;
+    private Map<String, String> validationErrors;
+}