Feature: custom error handling

src/main/java/com/cotato/team2/team2/exception/CustomErrorResponse.java

@@ -0,0 +1,12 @@
+package com.cotato.team2.team2.exception;
+
+public record CustomErrorResponse(
+        int code,
+        String message,
+        String method,
+        String requestURI
+) {
+    public static CustomErrorResponse of(int code, String message, String method, String requestURI) {
+        return new CustomErrorResponse(code, message, method, requestURI);
+    }
+}

src/main/java/com/cotato/team2/team2/exception/GlobalExceptionHandler.java

@@ -0,0 +1,21 @@
+package com.cotato.team2.team2.exception;
+
+import jakarta.servlet.http.HttpServletRequest;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
+
+    @ExceptionHandler(BusinessException.class)
+    public ResponseEntity<CustomErrorResponse> handleBusinessException(HttpServletRequest request, BusinessException e) {
+        log.error("BusinessException 발생: {} <{}>", e.getCode(), e.getMessage());
+        CustomErrorResponse errorResponse = CustomErrorResponse.of(e.getCode(), e.getMessage(), request.getMethod(), request.getRequestURI());
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(errorResponse);
+    }
+}