Feat/#12 응답 데이터 형식 및 전역 예외처리 추가

backend/project2/src/main/java/com/team8/project2/global/aspect/ResponseAspect.java

@@ -0,0 +1,49 @@
+package com.team8.project2.global.aspect;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.stereotype.Component;
+
+import com.team8.project2.global.dto.RsData;
+
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+
+@Aspect
+@Component
+@RequiredArgsConstructor
+public class ResponseAspect {
+
+	private final HttpServletResponse response;
+
+	@Around("""
+            (
+                within
+                (
+                    @org.springframework.web.bind.annotation.RestController *
+                )
+                &&
+                (
+                    @annotation(org.springframework.web.bind.annotation.GetMapping)
+                    ||
+                    @annotation(org.springframework.web.bind.annotation.PostMapping)
+                    ||
+                    @annotation(org.springframework.web.bind.annotation.PutMapping)
+                    ||
+                    @annotation(org.springframework.web.bind.annotation.DeleteMapping)
+                )
+            )
+            ||
+            @annotation(org.springframework.web.bind.annotation.ResponseBody)
+            """)
+	public Object responseAspect(ProceedingJoinPoint joinPoint) throws Throwable {
+		Object rst = joinPoint.proceed();
+
+		if(rst instanceof RsData rsData) {
+			int statusCode = rsData.getStatusCode();
+			response.setStatus(statusCode);
+		}
+		return rst;
+	}
+}

backend/project2/src/main/java/com/team8/project2/global/dto/Empty.java

@@ -0,0 +1,4 @@
+package com.team8.project2.global.dto;
+
+public class Empty {
+}

backend/project2/src/main/java/com/team8/project2/global/dto/RsData.java

@@ -0,0 +1,26 @@
+package com.team8.project2.global.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@AllArgsConstructor
+@Getter
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class RsData<T> {
+	private String code;
+	private String msg;
+	private T data;
+
+	public RsData(String code, String msg) {
+		this(code, msg, (T)new Empty());
+	}
+
+	@JsonIgnore
+	public int getStatusCode() {
+		String statusCodeStr = code.split("-")[0];
+		return Integer.parseInt(statusCodeStr);
+	}
+}

backend/project2/src/main/java/com/team8/project2/global/exception/GlobalExceptionHandler.java

@@ -0,0 +1,35 @@
+package com.team8.project2.global.exception;
+
+import java.util.stream.Collectors;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import com.team8.project2.global.dto.Empty;
+import com.team8.project2.global.dto.RsData;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+	@ExceptionHandler(MethodArgumentNotValidException.class)
+	public ResponseEntity<RsData<Empty>> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
+
+		String message = e.getBindingResult().getFieldErrors()
+			.stream()
+			.map(fe -> fe.getField() + " : " + fe.getCode() + " : "  + fe.getDefaultMessage())
+			.sorted()
+			.collect(Collectors.joining("\n"));
+
+		return ResponseEntity
+			.status(HttpStatus.BAD_REQUEST)
+			.body(
+				new RsData<>(
+					"400-1",
+					message
+				)
+			);
+	}
+}

backend/project2/src/main/java/com/team8/project2/global/exception/ServiceException.java

@@ -0,0 +1,25 @@
+package com.team8.project2.global.exception;
+
+import com.team8.project2.global.dto.RsData;
+
+public class ServiceException extends RuntimeException {
+
+	private RsData<?> rsData;
+
+	public ServiceException(String code, String message) {
+		super(message);
+		rsData = new RsData<>(code, message);
+	}
+
+	public String getCode() {
+		return rsData.getCode();
+	}
+
+	public String getMsg() {
+		return rsData.getMsg();
+	}
+
+	public int getStatusCode() {
+		return rsData.getStatusCode();
+	}
+}