#33 [Add] 예외처리 틀

src/main/java/com/mpnp/baechelin/exception/CustomException.java

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+package com.mpnp.baechelin.exception;
+
+import lombok.Getter;
+
+@Getter
+public class CustomException extends RuntimeException{
+    private ErrorCode errorCode;
+
+    public CustomException(ErrorCode errorCode) {
+        super(errorCode.getMessage());
+        this.errorCode = errorCode;
+    }
+}

src/main/java/com/mpnp/baechelin/exception/ErrorResponse.java

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+package com.mpnp.baechelin.exception;
+
+import lombok.Builder;
+import lombok.Getter;
+import org.springframework.http.ResponseEntity;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Builder
+public class ErrorResponse {
+    private final LocalDateTime timestamp = LocalDateTime.now();
+    private final int status;
+    private final String error;
+    private final String code;
+    private final String message;
+
+    public static ResponseEntity<ErrorResponse> toResponseEntity(ErrorCode errorCode) {
+        return ResponseEntity
+                .status(errorCode.getStatus())
+                .body(ErrorResponse.builder()
+                        .status(errorCode.getStatus())
+                        .error(errorCode.getCode())
+                        .code(errorCode.name())
+                        .message(errorCode.getMessage())
+                        .build()
+                );
+    }
+}

src/main/java/com/mpnp/baechelin/exception/GlobalExceptionHandler.java

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+package com.mpnp.baechelin.exception;
+
+import lombok.extern.slf4j.Slf4j;
+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(value = CustomException.class)
+    protected ResponseEntity<ErrorResponse> handleCustomException(CustomException e) {
+        log.error("handleCustomException throw CustomException : {}", e.getErrorCode());
+        return ErrorResponse.toResponseEntity(e.getErrorCode());
+    }
+}