NCP-3 add usercontent crud's,dto,exception and start restcontroller

src/main/java/ru/soune/no_copy/handler/GlobalExceptionHandler.java

@@ -8,6 +8,7 @@ import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
+import ru.soune.no_copy.exception.ContentNotFoundException;
 import ru.soune.no_copy.exception.NotValidationPasswordException;
 import ru.soune.no_copy.exception.UserAlreadyExistsException;
 import ru.soune.no_copy.exception.UserNotFoundException;
@@ -53,6 +54,17 @@ public class GlobalExceptionHandler {
                 ));
     }
 
+    @ExceptionHandler(ContentNotFoundException.class)
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    public ResponseEntity<?> handleUserNotFoundException(ContentNotFoundException ex) {
+        return ResponseEntity.
+                badRequest()
+                .body(Map.of(
+                        "success", false,
+                        "message" ,ex.getMessage()
+                ));
+    }
+
     @ExceptionHandler(NotValidationPasswordException.class)
     @ResponseStatus(HttpStatus.FORBIDDEN)
     public ResponseEntity<?> handleNotValidationPasswordException(NotValidationPasswordException ex) {