feat: 예외 처리를 위한 Controller를 따로 생성한다.

src/main/java/org/prgms/springbooturlshortener/domain/shorturl/controller/ExceptionController.java

@@ -0,0 +1,31 @@
+package org.prgms.springbooturlshortener.domain.shorturl.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.prgms.springbooturlshortener.domain.shorturl.exception.UrlException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+@Slf4j
+public class ExceptionController {
+    private static final int HTTP_500_ERROR_BOUND = 400;
+    @ExceptionHandler(UrlException.class)
+    public String showUrlErrorPage(UrlException ex) {
+        if (ex.getUrlErrorCode() > HTTP_500_ERROR_BOUND) {
+            log.warn("서버에서의 에러: {}", ex.getMessage());
+
+            return "error/500";
+        }
+
+        log.info("클라이언트에서 잘못된 입력. {}", ex.getMessage());
+
+        return "error/400";
+    }
+
+    @ExceptionHandler(Exception.class)
+    public String showDefaultError(Exception ex) {
+        log.error("예상하지 못한 에러 발생: {}", ex.getMessage());
+
+        return "error/500";
+    }
+}

src/main/java/org/prgms/springbooturlshortener/domain/shorturl/controller/ShortUrlController.java

@@ -9,7 +9,6 @@
 import org.prgms.springbooturlshortener.domain.shorturl.service.dto.TransformedShortUrlDto;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -18,7 +17,6 @@
 @Controller
 @Slf4j
 public class ShortUrlController {
-    private static final int HTTP_500_ERROR_BOUND = 400;
 
     private final ShortUrlService shortUrlService;
 
@@ -58,24 +56,4 @@ public String showTransformedUrl(TransformedShortUrlDto transformedShortUrlDto,
 
         return "short-url-info";
     }
-
-    @ExceptionHandler(UrlException.class)
-    public String showUrlErrorPage(UrlException ex) {
-        if (ex.getUrlErrorCode() > HTTP_500_ERROR_BOUND) {
-            log.warn("서버에서의 에러: {}", ex.getMessage());
-
-            return "error/500";
-        }
-
-        log.info("클라이언트에서 잘못된 입력. {}", ex.getMessage());
-
-        return "error/400";
-    }
-
-    @ExceptionHandler(Exception.class)
-    public String showDefaultError(Exception ex) {
-        log.error("예상하지 못한 에러 발생: {}", ex.getMessage());
-
-        return "error/400";
-    }
 }