diff --git a/build/doc/db.sql b/build/doc/db.sql
index e63c72f..8622d97 100644
--- a/build/doc/db.sql
+++ b/build/doc/db.sql
@@ -12,6 +12,22 @@ CREATE TABLE `tank20_download_token`
   UNIQUE KEY `id_UNIQUE` (`uuid`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='下载的token表';
 
+CREATE TABLE `tank20_footprint`
+(
+  `uuid`        char(36)  NOT NULL,
+  `user_uuid`   char(36)           DEFAULT NULL,
+  `ip`          varchar(45)        DEFAULT NULL,
+  `host`        varchar(45)        DEFAULT NULL,
+  `uri`         varchar(255)       DEFAULT NULL,
+  `params`      text,
+  `cost`        int(11) DEFAULT '0' COMMENT '耗时 ms',
+  `success`     tinyint(1) DEFAULT '1',
+  `sort`        bigint(20) NOT NULL DEFAULT '0',
+  `update_time` timestamp NULL DEFAULT NULL,
+  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`uuid`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='访问记录表';
+
 CREATE TABLE `tank20_image_cache`
 (
   `uuid`        char(36) NOT NULL,
@@ -40,6 +56,7 @@ CREATE TABLE `tank20_matter`
   `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,
+  `times`       bigint(20) DEFAULT '0' COMMENT '下载次数',
   `sort`        bigint(20) DEFAULT NULL,
   `update_time` timestamp NULL DEFAULT NULL,
   `create_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
@@ -63,33 +80,15 @@ CREATE TABLE `tank20_preference`
   UNIQUE KEY `id_UNIQUE` (`uuid`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='网站偏好设置表';
 
-CREATE TABLE `tank20_security_visit`
-(
-  `uuid`        char(36)  NOT NULL,
-  `session_id`  varchar(45)        DEFAULT NULL,
-  `user_uuid`   char(36)           DEFAULT NULL,
-  `ip`          varchar(45)        DEFAULT NULL,
-  `host`        varchar(45)        DEFAULT NULL,
-  `uri`         varchar(255)       DEFAULT NULL,
-  `params`      text,
-  `cost`        int(11) DEFAULT '0' COMMENT '耗时 ms',
-  `success`     tinyint(1) DEFAULT '1',
-  `sort`        bigint(20) NOT NULL DEFAULT '0',
-  `update_time` timestamp NULL DEFAULT NULL,
-  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
-  PRIMARY KEY (`uuid`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='访问记录表';
-
 CREATE TABLE `tank20_session`
 (
-  `uuid`           char(36) NOT NULL,
-  `authentication` char(36)    DEFAULT NULL COMMENT '认证身份，存放在cookie中',
-  `user_uuid`      char(36)    DEFAULT NULL COMMENT '用户uuid',
-  `ip`             varchar(45) DEFAULT NULL COMMENT '用户的ip地址',
-  `expire_time`    timestamp NULL DEFAULT NULL,
-  `sort`           bigint(20) DEFAULT NULL,
-  `update_time`    timestamp NULL DEFAULT NULL,
-  `create_time`    timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+  `uuid`        char(36) NOT NULL,
+  `user_uuid`   char(36)    DEFAULT NULL COMMENT '用户uuid',
+  `ip`          varchar(45) DEFAULT NULL COMMENT '用户的ip地址',
+  `expire_time` timestamp NULL DEFAULT NULL,
+  `sort`        bigint(20) DEFAULT NULL,
+  `update_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='session表';
@@ -131,5 +130,7 @@ CREATE TABLE `tank20_user`
   `update_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`)
+  UNIQUE KEY `id_UNIQUE` (`uuid`),
+  UNIQUE KEY `email_UNIQUE` (`email`),
+  UNIQUE KEY `username_UNIQUE` (`username`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户表描述';
diff --git a/rest/logger.go b/rest/logger.go
index 3128761..dc02da1 100644
--- a/rest/logger.go
+++ b/rest/logger.go
@@ -67,6 +67,7 @@ func (this *Logger) Init() {
 	//日志需要自我备份，自我维护。明天第一秒触发
 	nextTime := FirstSecondOfDay(Tomorrow())
 	duration := nextTime.Sub(time.Now())
+	go this.Info("%vs后将进行下一次日志维护 下次时间%v ", int64(duration/time.Second), nextTime)
 	this.maintainTimer = time.AfterFunc(duration, func() {
 		go this.maintain()
 	})
@@ -100,12 +101,12 @@ func (this *Logger) maintain() {
 	now := time.Now()
 	nextTime := FirstSecondOfDay(Tomorrow())
 	duration := nextTime.Sub(now)
+	go this.Info("%vs后将进行下一次日志维护 下次时间维护时间：%v ", int64(duration/time.Second), nextTime)
 	this.maintainTimer = time.AfterFunc(duration, func() {
 		go this.maintain()
 	})
 }
 
-
 //日志名称
 func (this *Logger) fileName() string {
 	return GetLogPath() + "/tank.log"
diff --git a/rest/util_time.go b/rest/util_time.go
index 6b137f9..f55d659 100644
--- a/rest/util_time.go
+++ b/rest/util_time.go
@@ -30,13 +30,13 @@ func FirstSecondOfDay(day time.Time) time.Time {
 //明天此刻的时间
 func Tomorrow() time.Time {
 	tomorrow := time.Now()
-	tomorrow.AddDate(0, 0, 1)
+	tomorrow = tomorrow.AddDate(0, 0, 1)
 	return tomorrow
 }
 
 //昨天此刻的时间
 func Yesterday() time.Time {
 	tomorrow := time.Now()
-	tomorrow.AddDate(0, 0, -1)
+	tomorrow = tomorrow.AddDate(0, 0, -1)
 	return tomorrow
 }