f

app/main/api/internal/logic/report/downloadreportpdflogic.go

@@ -31,8 +31,16 @@ func (l *DownloadReportPdfLogic) DownloadReportPdf(req *types.DownloadReportPdfR
 		return nil, fmt.Errorf("生成报告 PDF 失败: %w", err)
 	}
 
+	fileKey := req.OrderNo
+	if fileKey == "" {
+		fileKey = req.OrderId
+	}
+	if fileKey == "" {
+		fileKey = "unknown"
+	}
+
 	resp = &types.DownloadReportPdfResp{
-		FileName: fmt.Sprintf("report_%s.pdf", req.OrderNo),
+		FileName: fmt.Sprintf("report_%s.pdf", fileKey),
 		Content:  pdfBytes,
 	}
 	return resp, nil