feat: 행사 커스텀 예외 처리

server/src/main/java/server/haengdong/ServerApplication.java → server/src/main/java/server/haengdong/HaengdongApplication.java

@@ -4,10 +4,10 @@
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
-public class ServerApplication {
+public class HaengdongApplication {
 
     public static void main(String[] args) {
-        SpringApplication.run(ServerApplication.class, args);
+        SpringApplication.run(HaengdongApplication.class, args);
     }
 
 }

server/src/main/java/server/haengdong/exception/ErrorResponse.java

@@ -0,0 +1,10 @@
+package server.haengdong.exception;
+
+public record ErrorResponse(
+        String message
+) {
+
+    public static ErrorResponse of(HaengdongErrorCode errorCode) {
+        return new ErrorResponse(errorCode.getMessage());
+    }
+}

server/src/main/java/server/haengdong/exception/GlobalExceptionHandler.java

@@ -0,0 +1,31 @@
+package server.haengdong.exception;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
+    public ResponseEntity<ErrorResponse> haengdongException() {
+        return ResponseEntity.badRequest()
+                .body(ErrorResponse.of(HaengdongErrorCode.BAD_REQUEST));
+    }
+
+    @ExceptionHandler(HaengdongException.class)
+    public ResponseEntity<ErrorResponse> haengdongException(HaengdongException e) {
+        return ResponseEntity.status(e.getStatusCode())
+                .body(ErrorResponse.of(e.getErrorCode()));
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ErrorResponse> handleException(Exception e) {
+        log.error(e.getMessage(), e);
+        return ResponseEntity.internalServerError()
+                .body(ErrorResponse.of(HaengdongErrorCode.INTERNAL_SERVER_ERROR));
+    }
+}

server/src/main/java/server/haengdong/exception/HaengdongErrorCode.java

@@ -0,0 +1,20 @@
+package server.haengdong.exception;
+
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+
+@Getter
+public enum HaengdongErrorCode {
+    BAD_REQUEST(HttpStatus.BAD_REQUEST, "잘못된 요청입니다."),
+    NOT_FOUND_EVENT(HttpStatus.NOT_FOUND, "존재하지 않는 행사입니다."),
+    INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "서버 내부에서 에러가 발생했습니다."),
+    ;
+
+    private final HttpStatus httpStatus;
+    private final String message;
+
+    HaengdongErrorCode(HttpStatus httpStatus, String message) {
+        this.httpStatus = httpStatus;
+        this.message = message;
+    }
+}

server/src/main/java/server/haengdong/exception/HaengdongException.java

@@ -0,0 +1,32 @@
+package server.haengdong.exception;
+
+import lombok.Getter;
+import org.springframework.http.HttpStatusCode;
+
+@Getter
+public class HaengdongException extends RuntimeException {
+
+    private final HaengdongErrorCode errorCode;
+    private final String message;
+
+    public HaengdongException(HaengdongErrorCode errorCode) {
+        this(errorCode, null);
+    }
+
+    public HaengdongException(HaengdongErrorCode errorCode, String message) {
+        this.errorCode = errorCode;
+        this.message = message;
+    }
+
+    public HttpStatusCode getStatusCode() {
+        return errorCode.getHttpStatus();
+    }
+
+    @Override
+    public String getMessage() {
+        if (message == null) {
+            return errorCode.getMessage();
+        }
+        return message;
+    }
+}