issue # 에러 핸들링

src/main/java/com/baekyangdan/scheduler/config/ExceptionHandler.java

@@ -0,0 +1,48 @@
+package com.baekyangdan.scheduler.config;
+
+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 java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ExceptionHandler {
+    // 에러 핸들러 목록
+    // 1. 비즈니스 로직 관련 예외 처리
+    // ex) 중복 데이터
+    @ExceptionHandler(BusinessException.class)
+    public ResponseEntity<Map<String, Object>> handleBusinessException(BusinessException e) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("message", e.getMessage());
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(body);
+    }
+
+    // 2. 입력값 유효성 검사 관련 예외 처리
+    // ex) 데이터 타입 검사
+    @ExceptionHandler(ValidationException.class)
+    public ResponseEntity<Map<String, Object>> handleValidationException(ValidationException e) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("message", e.getMessage());
+        return ResponseEntity.status(HttpStatus.UNPROCESSABLE_ENTITY).body(body);
+    }
+    
+    // 3. 권한/인가 관련 예외 처리
+    // ex) 로그인이 필요한 서비스에 로그인 안 한 사람이 호출
+    @ExceptionHandler(AuthException.class)
+    public ResponseEntity<Map<String, Object>> handleValidationException(ValidationException e) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("message", e.getMessage());
+        return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(body);
+    }
+
+    // 4. 기타 예외 처리
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Map<String, Object>> handleDefaultException(Exception e) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("message", e.getMessage());
+        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(body);
+    }
+}

src/main/java/com/baekyangdan/scheduler/exception/AuthException.java

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+package com.baekyangdan.scheduler.exception;
+
+public class AuthException extends RuntimeException {
+    public AuthException(String message) {
+        super(message);
+    }
+}

src/main/java/com/baekyangdan/scheduler/exception/BusinessException.java

@@ -0,0 +1,7 @@
+package com.baekyangdan.scheduler.exception;
+
+public class BusinessException extends RuntimeException {
+    public BusinessException(String message) {
+        super(message);
+    }
+}

src/main/java/com/baekyangdan/scheduler/exception/ValidationException.java

@@ -0,0 +1,7 @@
+package com.baekyangdan.scheduler.exception;
+
+public class ValidationException extends RuntimeException {
+    public ValidationException(String message) {
+        super(message);
+    }
+}