1

server/biz/controller/admin.go

@@ -2,8 +2,6 @@ package controller
 
 import (
 	"context"
-	"fmt"
-	"net/url"
 
 	"github.com/gogf/gf/v2/net/ghttp"
 
@@ -119,13 +117,14 @@ func (c *cAdmin) UploadCover(ctx context.Context, req *dto.AdminDatasetCoverUplo
 	return service.Dataset.AdminUploadCover(ctx, req)
 }
 
-// Cover 封面访问（直写响应体）
+// Cover 封面访问（直写响应体；URL 不随封面更换变化，必须 no-store 防浏览器缓存旧图）
 func (c *cAdmin) Cover(ctx context.Context, req *dto.AdminDatasetCoverReq) (*dto.AdminDatasetCoverRes, error) {
 	path, err := service.Dataset.CoverFile(ctx, req.DatasetId)
 	if err != nil {
 		return nil, err
 	}
 	r := ghttp.RequestFromCtx(ctx)
+	r.Response.Header().Set("Cache-Control", "no-store")
 	r.Response.ServeFile(path)
 	return &dto.AdminDatasetCoverRes{}, nil
 }
@@ -135,20 +134,6 @@ func (c *cAdmin) DeleteCover(ctx context.Context, req *dto.AdminDatasetCoverDele
 	return service.Dataset.AdminDeleteCover(ctx, req)
 }
 
-// ExportDataset 导出数据集 zip（直写响应体下载）
-func (c *cAdmin) ExportDataset(ctx context.Context, req *dto.AdminDatasetExportReq) (*dto.AdminDatasetExportRes, error) {
-	data, filename, err := service.Dataset.ExportZip(ctx, req.DatasetId)
-	if err != nil {
-		return nil, err
-	}
-	r := ghttp.RequestFromCtx(ctx)
-	r.Response.Header().Set("Content-Disposition",
-		fmt.Sprintf("attachment; filename*=UTF-8''%s", url.PathEscape(filename)))
-	r.Response.Header().Set("Content-Type", "application/zip")
-	r.Response.Write(data)
-	return &dto.AdminDatasetExportRes{}, nil
-}
-
 // ---------- 训练编排 ----------
 
 // ListTrainings 训练任务列表