diff --git a/code/rest/alien_service.go b/code/rest/alien_service.go
index 968ca2a..2624b0c 100644
--- a/code/rest/alien_service.go
+++ b/code/rest/alien_service.go
@@ -118,7 +118,7 @@ func (this *AlienService) PreviewOrDownload(
 		this.logger.Info("准备下载文件夹 %s", matter.Name)
 
 		//目标地点
-		this.matterService.AtomicDownloadDirectory(writer, request, matter)
+		this.matterService.DownloadDirectory(writer, request, matter)
 
 	} else {
 
diff --git a/code/rest/matter_controller.go b/code/rest/matter_controller.go
index 0d93d23..f7751d9 100644
--- a/code/rest/matter_controller.go
+++ b/code/rest/matter_controller.go
@@ -109,7 +109,6 @@ func (this *MatterController) Page(writer http.ResponseWriter, request *http.Req
 	userUuid := request.FormValue("userUuid")
 	name := request.FormValue("name")
 	dir := request.FormValue("dir")
-	alien := request.FormValue("alien")
 	orderDir := request.FormValue("orderDir")
 	orderSize := request.FormValue("orderSize")
 	orderName := request.FormValue("orderName")
@@ -170,7 +169,7 @@ func (this *MatterController) Page(writer http.ResponseWriter, request *http.Req
 		},
 	}
 
-	pager := this.matterDao.Page(page, pageSize, puuid, userUuid, name, dir, alien, extensions, sortArray)
+	pager := this.matterDao.Page(page, pageSize, puuid, userUuid, name, dir, extensions, sortArray)
 
 	return this.Success(pager)
 }
diff --git a/code/rest/matter_dao.go b/code/rest/matter_dao.go
index 3ec3e25..9d5c615 100644
--- a/code/rest/matter_dao.go
+++ b/code/rest/matter_dao.go
@@ -221,7 +221,7 @@ func (this *MatterDao) List(puuid string, userUuid string, sortArray []builder.O
 }
 
 //获取某个文件夹下所有的文件和子文件
-func (this *MatterDao) Page(page int, pageSize int, puuid string, userUuid string, name string, dir string, alien string, extensions []string, sortArray []builder.OrderPair) *Pager {
+func (this *MatterDao) Page(page int, pageSize int, puuid string, userUuid string, name string, dir string, extensions []string, sortArray []builder.OrderPair) *Pager {
 
 	var wp = &builder.WherePair{}
 
@@ -243,12 +243,6 @@ func (this *MatterDao) Page(page int, pageSize int, puuid string, userUuid strin
 		wp = wp.And(&builder.WherePair{Query: "dir = ?", Args: []interface{}{0}})
 	}
 
-	if alien == TRUE {
-		wp = wp.And(&builder.WherePair{Query: "alien = ?", Args: []interface{}{1}})
-	} else if alien == FALSE {
-		wp = wp.And(&builder.WherePair{Query: "alien = ?", Args: []interface{}{0}})
-	}
-
 	var conditionDB *gorm.DB
 	if extensions != nil && len(extensions) > 0 {
 		var orWp = &builder.WherePair{}
diff --git a/code/rest/matter_service.go b/code/rest/matter_service.go
index 272271e..672f2ac 100644
--- a/code/rest/matter_service.go
+++ b/code/rest/matter_service.go
@@ -27,6 +27,7 @@ type MatterService struct {
 	userService       *UserService
 	imageCacheDao     *ImageCacheDao
 	imageCacheService *ImageCacheService
+	preferenceService *PreferenceService
 }
 
 //初始化方法
@@ -59,6 +60,11 @@ func (this *MatterService) Init() {
 		this.imageCacheService = b
 	}
 
+	b = core.CONTEXT.GetBean(this.preferenceService)
+	if b, ok := b.(*PreferenceService); ok {
+		this.preferenceService = b
+	}
+
 }
 
 //文件下载。支持分片下载
@@ -73,7 +79,7 @@ func (this *MatterService) DownloadFile(
 }
 
 //下载文件夹
-func (this *MatterService) AtomicDownloadDirectory(
+func (this *MatterService) DownloadDirectory(
 	writer http.ResponseWriter,
 	request *http.Request,
 	matter *Matter) {
@@ -86,15 +92,17 @@ func (this *MatterService) AtomicDownloadDirectory(
 		panic(result.BadRequest("matter 只能是文件夹"))
 	}
 
-	//操作锁
-	this.userService.MatterLock(matter.UserUuid)
-	defer this.userService.MatterUnlock(matter.UserUuid)
-
 	//验证文件夹中文件总大小。
 	sumSize := this.matterDao.SumSizeByUserUuidAndPath(matter.UserUuid, matter.Path)
 	this.logger.Info("文件夹 %s 大小为 %s", matter.Name, util.HumanFileSize(sumSize))
 
-	//TODO: 文件夹下载的大小限制
+	//判断用户自身上传大小的限制
+	preference := this.preferenceService.Fetch()
+	if preference.DownloadDirMaxSize >= 0 {
+		if sumSize > preference.DownloadDirMaxSize {
+			panic(result.BadRequest("文件夹大小%s超出下载限制%s ", util.HumanFileSize(sumSize), util.HumanFileSize(preference.DownloadDirMaxSize)))
+		}
+	}
 
 	//准备zip放置的目录。
 	destZipDirPath := fmt.Sprintf("%s/%d", GetUserZipRootDir(matter.Username), time.Now().UnixNano()/1e6)
diff --git a/code/rest/preference_controller.go b/code/rest/preference_controller.go
index 1cb6c6f..d25431e 100644
--- a/code/rest/preference_controller.go
+++ b/code/rest/preference_controller.go
@@ -5,6 +5,7 @@ import (
 	"github.com/eyebluecn/tank/code/tool/result"
 	"github.com/eyebluecn/tank/code/tool/util"
 	"net/http"
+	"strconv"
 )
 
 type PreferenceController struct {
@@ -39,7 +40,7 @@ func (this *PreferenceController) RegisterRoutes() map[string]func(writer http.R
 	routeMap["/api/preference/ping"] = this.Wrap(this.Ping, USER_ROLE_GUEST)
 	routeMap["/api/preference/fetch"] = this.Wrap(this.Fetch, USER_ROLE_GUEST)
 	routeMap["/api/preference/edit"] = this.Wrap(this.Edit, USER_ROLE_ADMINISTRATOR)
-	routeMap["/api/preference/system_cleanup"] = this.Wrap(this.SystemCleanup, USER_ROLE_ADMINISTRATOR)
+	routeMap["/api/preference/system/cleanup"] = this.Wrap(this.SystemCleanup, USER_ROLE_ADMINISTRATOR)
 
 	return routeMap
 }
@@ -70,21 +71,27 @@ func (this *PreferenceController) Edit(writer http.ResponseWriter, request *http
 
 	logoUrl := request.FormValue("logoUrl")
 	faviconUrl := request.FormValue("faviconUrl")
-	footerLine1 := request.FormValue("footerLine1")
-	footerLine2 := request.FormValue("footerLine2")
-	showAlienStr := request.FormValue("showAlien")
+	copyright := request.FormValue("copyright")
+	record := request.FormValue("record")
+	downloadDirMaxSizeStr := request.FormValue("downloadDirMaxSize")
+
+	var downloadDirMaxSize int64 = 0
+	if downloadDirMaxSizeStr == "" {
+		panic("文件下载最大限制必填！")
+	} else {
+		intDownloadDirMaxSize, err := strconv.Atoi(downloadDirMaxSizeStr)
+		this.PanicError(err)
+
+		downloadDirMaxSize = int64(intDownloadDirMaxSize)
+	}
 
 	preference := this.preferenceDao.Fetch()
 	preference.Name = name
 	preference.LogoUrl = logoUrl
 	preference.FaviconUrl = faviconUrl
-	preference.FooterLine1 = footerLine1
-	preference.FooterLine2 = footerLine2
-	if showAlienStr == TRUE {
-		preference.ShowAlien = true
-	} else if showAlienStr == FALSE {
-		preference.ShowAlien = false
-	}
+	preference.Copyright = copyright
+	preference.Record = record
+	preference.DownloadDirMaxSize = downloadDirMaxSize
 
 	preference = this.preferenceDao.Save(preference)
 
diff --git a/code/rest/preference_dao.go b/code/rest/preference_dao.go
index 5e0e5be..b177bc0 100644
--- a/code/rest/preference_dao.go
+++ b/code/rest/preference_dao.go
@@ -21,7 +21,7 @@ func (this *PreferenceDao) Fetch() *Preference {
 
 		if db.Error.Error() == result.DB_ERROR_NOT_FOUND {
 			preference.Name = "蓝眼云盘"
-			preference.ShowAlien = true
+
 			this.Create(preference)
 			return preference
 		} else {
diff --git a/code/rest/preference_model.go b/code/rest/preference_model.go
index 55c2468..2645c62 100644
--- a/code/rest/preference_model.go
+++ b/code/rest/preference_model.go
@@ -4,12 +4,12 @@ import "github.com/eyebluecn/tank/code/core"
 
 type Preference struct {
 	Base
-	Name        string `json:"name" gorm:"type:varchar(45)"`
-	LogoUrl     string `json:"logoUrl" gorm:"type:varchar(255)"`
-	FaviconUrl  string `json:"faviconUrl" gorm:"type:varchar(255)"`
-	FooterLine1 string `json:"footerLine1" gorm:"type:varchar(1024)"`
-	FooterLine2 string `json:"footerLine2" gorm:"type:varchar(1024)"`
-	ShowAlien   bool   `json:"showAlien" gorm:"type:tinyint(1) not null;default:1"`
+	Name               string `json:"name" gorm:"type:varchar(45)"`
+	LogoUrl            string `json:"logoUrl" gorm:"type:varchar(255)"`
+	FaviconUrl         string `json:"faviconUrl" gorm:"type:varchar(255)"`
+	Copyright          string `json:"copyright" gorm:"type:varchar(1024)"`
+	Record             string `json:"record" gorm:"type:varchar(1024)"`
+	DownloadDirMaxSize int64  `json:"downloadDirMaxSize" gorm:"type:bigint(20) not null;default:-1"`
 }
 
 // set File's table name to be `profiles`
diff --git a/code/tool/util/util.zip.go b/code/tool/util/util_zip.go
similarity index 88%
rename from code/tool/util/util.zip.go
rename to code/tool/util/util_zip.go
index 66153b6..80bfbc5 100644
--- a/code/tool/util/util.zip.go
+++ b/code/tool/util/util_zip.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 )
 
+//将srcPath压缩到destPath。
 func Zip(srcPath string, destPath string) {
 
 	if PathExists(destPath) {
@@ -40,8 +41,6 @@ func Zip(srcPath string, destPath string) {
 			return errBack
 		}
 
-		//fmt.Println("遍历文件： " + path)
-
 		// 通过文件信息，创建 zip 的文件信息
 		fileHeader, err := zip.FileInfoHeader(fileInfo)
 		if err != nil {
@@ -49,7 +48,7 @@ func Zip(srcPath string, destPath string) {
 		}
 
 		// 替换文件信息中的文件名
-		fileHeader.Name = strings.TrimPrefix(prefix+"/"+fileInfo.Name(), string(filepath.Separator))
+		fileHeader.Name = strings.TrimPrefix(prefix+"/"+fileInfo.Name(), "/")
 
 		// 目录加上/
 		if fileInfo.IsDir() {
@@ -59,8 +58,6 @@ func Zip(srcPath string, destPath string) {
 			prefix = prefix + "/" + fileInfo.Name()
 		}
 
-		//fmt.Println("头部情况： " + fileHeader.Name)
-
 		// 写入文件信息，并返回一个 Write 结构
 		writer, err := zipWriter.CreateHeader(fileHeader)
 		if err != nil {
@@ -89,9 +86,6 @@ func Zip(srcPath string, destPath string) {
 			return
 		}
 
-		// 输出压缩的内容
-		//fmt.Printf("成功压缩文件： %s, 共写入了 %d 个字符的数据\n", path, n)
-
 		return nil
 	})
 	PanicError(err)