优化

common-web/src/main/java/com/baiyue/common/web/GlobalExceptionHandler.java

@@ -24,6 +24,7 @@ import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 import org.springframework.web.servlet.resource.NoResourceFoundException;
 import org.springframework.web.server.ResponseStatusException;
+import org.springframework.web.multipart.MaxUploadSizeExceededException;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -105,6 +106,16 @@ public class GlobalExceptionHandler {
         return failure(ResultCode.CONFLICT, "资源正在处理中，请稍后重试", request);
     }
 
+    @ExceptionHandler(MaxUploadSizeExceededException.class)
+    public ResponseEntity<ApiResponse<Void>> handleMaxUploadSize(
+            MaxUploadSizeExceededException exception, HttpServletRequest request) {
+        long maxBytes = exception.getMaxUploadSize();
+        String message = maxBytes > 0
+                ? "上传文件不能超过" + Math.max(1, (maxBytes + 1024 * 1024 - 1) / (1024 * 1024)) + "MB"
+                : "上传文件超过服务允许大小";
+        return failure(ResultCode.BAD_REQUEST, message, request);
+    }
+
     @ExceptionHandler(Exception.class)
     public ResponseEntity<ApiResponse<Void>> handleUnexpected(Exception exception, HttpServletRequest request) {
         log.error("Unhandled request failure requestId={} traceId={}",