diff --git a/rest/alien_controller.go b/rest/alien_controller.go
index 21ddff6..4bb9eb7 100644
--- a/rest/alien_controller.go
+++ b/rest/alien_controller.go
@@ -239,7 +239,7 @@ func (this *AlienController) Upload(writer http.ResponseWriter, request *http.Re
 		panic("文件大小不正确")
 	}
 
-	matter := this.matterService.Upload(file, user, uploadToken.FolderUuid, uploadToken.Filename, uploadToken.Privacy)
+	matter := this.matterService.Upload(file, user, uploadToken.FolderUuid, uploadToken.Filename, uploadToken.Privacy, true)
 
 	//更新这个uploadToken的信息.
 	uploadToken.ExpireTime = time.Now()
diff --git a/rest/install.go b/rest/install.go
index e62c210..fc08484 100644
--- a/rest/install.go
+++ b/rest/install.go
@@ -37,7 +37,7 @@ func InstallDatabase() {
 	matter := &Matter{}
 	hasTable = db.HasTable(matter)
 	if !hasTable {
-		createMatter := "CREATE TABLE `tank10_matter` (`uuid` char(36) NOT NULL,`puuid` varchar(45) DEFAULT NULL COMMENT '上一级的uuid',`user_uuid` char(36) DEFAULT NULL COMMENT '上传的用户id',`dir` tinyint(1) DEFAULT NULL COMMENT '是否是文件夹',`name` varchar(255) DEFAULT NULL COMMENT '文件名称',`md5` varchar(45) DEFAULT NULL COMMENT '文件的md5值',`size` bigint(20) DEFAULT '0' COMMENT '文件大小',`privacy` tinyint(1) DEFAULT '0' COMMENT '文件是否是公有的',`path` varchar(255) DEFAULT NULL,`sort` bigint(20) DEFAULT NULL,`modify_time` timestamp NULL DEFAULT NULL,`create_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',PRIMARY KEY (`uuid`),UNIQUE KEY `id_UNIQUE` (`uuid`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='file表';"
+		createMatter := "CREATE TABLE `tank10_matter` (`uuid` char(36) NOT NULL,`puuid` varchar(45) DEFAULT NULL COMMENT '上一级的uuid',`user_uuid` char(36) DEFAULT NULL COMMENT '上传的用户id',`dir` tinyint(1) DEFAULT '0' COMMENT '是否是文件夹',`alien` tinyint(1) DEFAULT '0',`name` varchar(255) DEFAULT NULL COMMENT '文件名称',`md5` varchar(45) DEFAULT NULL COMMENT '文件的md5值',`size` bigint(20) DEFAULT '0' COMMENT '文件大小',`privacy` tinyint(1) DEFAULT '0' COMMENT '文件是否是公有的',`path` varchar(255) DEFAULT NULL,`sort` bigint(20) DEFAULT NULL,`modify_time` timestamp NULL DEFAULT NULL,`create_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',PRIMARY KEY (`uuid`),UNIQUE KEY `id_UNIQUE` (`uuid`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='file表';"
 		db = db.Exec(createMatter)
 		if db.Error != nil {
 			LogPanic(db.Error)
diff --git a/rest/matter_controller.go b/rest/matter_controller.go
index 07aec60..3cf8222 100644
--- a/rest/matter_controller.go
+++ b/rest/matter_controller.go
@@ -216,12 +216,18 @@ func (this *MatterController) Upload(writer http.ResponseWriter, request *http.R
 
 	}
 
+	alienStr := request.FormValue("alien")
+	alien := false
+	if alienStr == "true" {
+		alien = true
+	}
+
 	request.ParseMultipartForm(32 << 20)
 	file, handler, err := request.FormFile("file")
 	this.PanicError(err)
 	defer file.Close()
 
-	matter := this.matterService.Upload(file, user, puuid, handler.Filename, true)
+	matter := this.matterService.Upload(file, user, puuid, handler.Filename, true, alien)
 
 	return this.Success(matter)
 }
diff --git a/rest/matter_model.go b/rest/matter_model.go
index 524396c..27d5d1d 100644
--- a/rest/matter_model.go
+++ b/rest/matter_model.go
@@ -5,6 +5,7 @@ type Matter struct {
 	Puuid    string  `json:"puuid"`
 	UserUuid string  `json:"userUuid"`
 	Dir      bool    `json:"dir"`
+	Alien    bool    `json:"alien"`
 	Name     string  `json:"name"`
 	Md5      string  `json:"md5"`
 	Size     int64   `json:"size"`
diff --git a/rest/matter_service.go b/rest/matter_service.go
index 3e433fe..006ee27 100644
--- a/rest/matter_service.go
+++ b/rest/matter_service.go
@@ -6,7 +6,6 @@ import (
 	"os"
 	"regexp"
 	"strings"
-
 )
 
 //@Service
@@ -59,11 +58,12 @@ func (this *MatterService) GetDirUuid(userUuid string, dir string) string {
 
 		matter := this.matterDao.FindByUserUuidAndPuuidAndNameAndDirTrue(userUuid, puuid, name)
 		if matter == nil {
-			//创建一个文件夹。
+			//创建一个文件夹。这里一般都是通过alien接口来创建的文件夹。
 			matter = &Matter{
 				Puuid:    puuid,
 				UserUuid: userUuid,
 				Dir:      true,
+				Alien:    true,
 				Name:     name,
 			}
 			matter = this.matterDao.Create(matter)
@@ -76,8 +76,8 @@ func (this *MatterService) GetDirUuid(userUuid string, dir string) string {
 }
 
 //开始上传文件
-//上传文件
-func (this *MatterService) Upload(file multipart.File, user *User, puuid string, filename string, privacy bool) *Matter {
+//上传文件. alien表明文件是否是应用使用的文件。
+func (this *MatterService) Upload(file multipart.File, user *User, puuid string, filename string, privacy bool, alien bool) *Matter {
 
 	//获取文件应该存放在的物理路径的绝对路径和相对路径。
 	absolutePath, relativePath := GetUserFilePath(user.Username)
@@ -104,6 +104,7 @@ func (this *MatterService) Upload(file multipart.File, user *User, puuid string,
 		Puuid:    puuid,
 		UserUuid: user.Uuid,
 		Dir:      false,
+		Alien:    alien,
 		Name:     filename,
 		Md5:      "",
 		Size:     written,