diff --git a/internal/consts/RedisConst.go b/internal/consts/RedisConst.go
index d7e9db6..1d26993 100644
--- a/internal/consts/RedisConst.go
+++ b/internal/consts/RedisConst.go
@@ -12,7 +12,7 @@ const REDIS_BLOG_DIARY_LATEST string = "blog:diary:latest"
 
 //文件相关Key常量
 const REDIS_FILE string = "blog:file:"
-const REDIS_FILE_BYTES string = "blog:file:bytes"
+const REDIS_FILE_BYTES string = "blog:file:bytes:"
 
 //文本相关Key常量
 const REDIS_BLOG_CONTENT string = "blog:content:"
diff --git a/internal/controller/FileController.go b/internal/controller/FileController.go
index 259a670..e88fc1f 100644
--- a/internal/controller/FileController.go
+++ b/internal/controller/FileController.go
@@ -4,6 +4,7 @@ import (
 	"blog/internal/service"
 	"net/http"
 	"net/url"
+	"strconv"
 
 	"github.com/kataras/iris/v12"
 	"github.com/kataras/iris/v12/mvc"
@@ -22,6 +23,7 @@ func (ctrl *FileController) ViewFile() {
 		return
 	}
 	ctrl.Ctx.Header("Content-Disposition", "attachment;filename="+url.QueryEscape(file.FileName))
+	ctrl.Ctx.Header("Content-Length", strconv.FormatInt(file.FileSize, 10))
 	ctrl.Ctx.Write(file.Data)
 }
 
diff --git a/internal/model/vo/CommonFiles.go b/internal/model/vo/CommonFiles.go
index 56890fc..513401d 100644
--- a/internal/model/vo/CommonFiles.go
+++ b/internal/model/vo/CommonFiles.go
@@ -5,6 +5,7 @@ import "encoding/json"
 type CommonFiles struct {
 	Id         string `json:"id" gorm:"primary_key"`
 	FileName   string `json:"fileName"`
+	FileSize   int64  `json:"fileSize"`
 	Data       []byte `json:"-"`
 	Sort       int32  `json:"sort"`
 	CreateBy   string `json:"-"`
diff --git a/internal/service/ArticleService.go b/internal/service/ArticleService.go
index 8552de3..84a6ebc 100644
--- a/internal/service/ArticleService.go
+++ b/internal/service/ArticleService.go
@@ -141,7 +141,9 @@ func (*articleService) PublishArticle(id string) error {
 		return errors.New("发布失败,文章状态不是起草状态,无法发布")
 	}
 
-	article.PublishTime = now
+	if article.PublishTime == 0 {
+		article.PublishTime = now
+	}
 	article.State = consts.ARTICLE_STATE_PUBLISH
 
 	err = database.WGorm().Transaction(func(tx *gorm.DB) error {
@@ -201,7 +203,7 @@ func (*articleService) UnPublishArticle(id string) error {
 		}
 
 		article.State = consts.ARTICLE_STATE_DRAFT
-		article.PublishTime = -1
+		// article.PublishTime = -1
 		txErr = tx.Table("blog_articles").Updates(&article).Error
 		if txErr != nil {
 			return errors.New("文章状态更新错误")