diff --git a/pkg/filesystem/fsctx/context.go b/pkg/filesystem/fsctx/context.go
index 28aef97..ff53258 100644
--- a/pkg/filesystem/fsctx/context.go
+++ b/pkg/filesystem/fsctx/context.go
@@ -13,6 +13,8 @@ const (
 	PathCtx
 	// FileModelCtx 文件数据库模型
 	FileModelCtx
+	// FolderModelCtx 目录数据库模型
+	FolderModelCtx
 	// HTTPCtx HTTP请求的上下文
 	HTTPCtx
 	// UploadPolicyCtx 上传策略，一般为slave模式下使用
@@ -25,4 +27,6 @@ const (
 	OriginSourceNameCtx
 	// FileSizeCtx 文件大小
 	FileSizeCtx
+	// ShareKeyCtx 分享文件的 HashID
+	ShareKeyCtx
 )
diff --git a/pkg/filesystem/manage.go b/pkg/filesystem/manage.go
index 5c3bba6..3b24bae 100644
--- a/pkg/filesystem/manage.go
+++ b/pkg/filesystem/manage.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	model "github.com/HFO4/cloudreve/models"
+	"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
 	"github.com/HFO4/cloudreve/pkg/serializer"
 	"github.com/HFO4/cloudreve/pkg/util"
 	"path"
@@ -24,6 +25,7 @@ type Object struct {
 	Size uint64 `json:"size"`
 	Type string `json:"type"`
 	Date string `json:"date"`
+	Key  string `json:"key,omitempty"`
 }
 
 // Rename 重命名对象
@@ -260,6 +262,12 @@ func (fs *FileSystem) List(ctx context.Context, dirPath string, pathProcessor fu
 	var childFolders []model.Folder
 	var childFiles []model.File
 
+	// 分享文件的ID
+	shareKey := ""
+	if key, ok := ctx.Value(fsctx.ShareKeyCtx).(string); ok {
+		shareKey = key
+	}
+
 	// 获取子目录
 	childFolders, _ = folder.GetChildFolder()
 
@@ -302,7 +310,7 @@ func (fs *FileSystem) List(ctx context.Context, dirPath string, pathProcessor fu
 			}
 		}
 
-		objects = append(objects, Object{
+		newFile := Object{
 			ID:   file.ID,
 			Name: file.Name,
 			Path: processedPath,
@@ -310,7 +318,11 @@ func (fs *FileSystem) List(ctx context.Context, dirPath string, pathProcessor fu
 			Size: file.Size,
 			Type: "file",
 			Date: file.CreatedAt.Format("2006-01-02 15:04:05"),
-		})
+		}
+		if shareKey != "" {
+			newFile.Key = shareKey
+		}
+		objects = append(objects, newFile)
 	}
 
 	return objects, nil
diff --git a/routers/router.go b/routers/router.go
index cd70cf2..5a019d4 100644
--- a/routers/router.go
+++ b/routers/router.go
@@ -173,7 +173,7 @@ func InitMasterRouter() *gin.Engine {
 			// 获取分享
 			share.GET("info/:id", controllers.GetShare)
 			// 创建文件下载会话
-			share.POST("download/:id",
+			share.PUT("download/:id",
 				middleware.CheckShareUnlocked(),
 				middleware.BeforeShareDownload(),
 				controllers.GetShareDownload,
diff --git a/service/explorer/file.go b/service/explorer/file.go
index 12174be..bce2940 100644
--- a/service/explorer/file.go
+++ b/service/explorer/file.go
@@ -133,6 +133,11 @@ func (service *SingleFileService) CreateDocPreviewSession(ctx context.Context, c
 		fs.SetTargetFile(&[]model.File{*file})
 	}
 
+	// 如果上下文中已有Folder对象，则重设目标
+	if folder, ok := ctx.Value(fsctx.FolderModelCtx).(*model.Folder); ok {
+		fs.SetTargetDir(&[]model.Folder{*folder})
+	}
+
 	// 获取文件临时下载地址
 	downloadURL, err := fs.GetDownloadURL(ctx, service.Path, "doc_preview_timeout")
 	if err != nil {
@@ -228,6 +233,11 @@ func (service *SingleFileService) PreviewContent(ctx context.Context, c *gin.Con
 		fs.SetTargetFile(&[]model.File{*file})
 	}
 
+	// 如果上下文中已有Folder对象，则重设目标
+	if folder, ok := ctx.Value(fsctx.FolderModelCtx).(*model.Folder); ok {
+		fs.SetTargetDir(&[]model.Folder{*folder})
+	}
+
 	// 获取文件预览响应
 	resp, err := fs.Preview(ctx, service.Path, isText)
 	if err != nil {
diff --git a/service/share/visit.go b/service/share/visit.go
index 6c4f2e3..f79eb1e 100644
--- a/service/share/visit.go
+++ b/service/share/visit.go
@@ -6,6 +6,7 @@ import (
 	model "github.com/HFO4/cloudreve/models"
 	"github.com/HFO4/cloudreve/pkg/filesystem"
 	"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
+	"github.com/HFO4/cloudreve/pkg/hashid"
 	"github.com/HFO4/cloudreve/pkg/serializer"
 	"github.com/HFO4/cloudreve/pkg/util"
 	"github.com/HFO4/cloudreve/service/explorer"
@@ -81,7 +82,7 @@ func (service *ShareService) CreateDownloadSession(c *gin.Context) serializer.Re
 	}
 
 	// 取得下载地址
-	downloadURL, err := fs.GetDownloadURL(context.Background(), "", "download_timeout")
+	downloadURL, err := fs.GetDownloadURL(context.Background(), service.Path, "download_timeout")
 	if err != nil {
 		return serializer.Err(serializer.CodeNotSet, err.Error(), err)
 	}
@@ -99,9 +100,13 @@ func (service *ShareService) PreviewContent(ctx context.Context, c *gin.Context,
 	share := shareCtx.(*model.Share)
 
 	// 用于调下层service
-	ctx = context.WithValue(ctx, fsctx.FileModelCtx, share.GetSource())
+	if share.IsDir {
+		ctx = context.WithValue(ctx, fsctx.FolderModelCtx, share.GetSource())
+	} else {
+		ctx = context.WithValue(ctx, fsctx.FileModelCtx, share.GetSource())
+	}
 	subService := explorer.SingleFileService{
-		Path: "",
+		Path: service.Path,
 	}
 
 	return subService.PreviewContent(ctx, c, isText)
@@ -113,9 +118,14 @@ func (service *ShareService) CreateDocPreviewSession(c *gin.Context) serializer.
 	share := shareCtx.(*model.Share)
 
 	// 用于调下层service
-	ctx := context.WithValue(context.Background(), fsctx.FileModelCtx, share.GetSource())
+	ctx := context.Background()
+	if share.IsDir {
+		ctx = context.WithValue(ctx, fsctx.FolderModelCtx, share.GetSource())
+	} else {
+		ctx = context.WithValue(ctx, fsctx.FileModelCtx, share.GetSource())
+	}
 	subService := explorer.SingleFileService{
-		Path: "",
+		Path: service.Path,
 	}
 
 	return subService.CreateDocPreviewSession(ctx, c)
@@ -182,6 +192,9 @@ func (service *ShareService) List(c *gin.Context) serializer.Response {
 	fs.SetTargetDir(&[]model.Folder{*share.GetSource().(*model.Folder)})
 	fs.DirTarget[0].Name = "/"
 
+	// 分享Key上下文
+	ctx = context.WithValue(ctx, fsctx.ShareKeyCtx, hashid.HashID(share.ID, hashid.ShareID))
+
 	// 获取子项目
 	objects, err := fs.List(ctx, service.Path, nil)
 	if err != nil {