上传图片到本地和数据库

protected void btnright_Click(object sender, EventArgs e)
    {
        if (this.FileUpload1.PostedFile.FileName == "")
        {
            Response.Write("不能上传空文件");
            return;
        }
        try
        {
            String path = Server.MapPath("upload/");//保存上传文件的文件夹upload虚拟路径对应的实际路径
            string pt = path;


            if (!Directory.Exists(pt)) //如果文件夹不存在则创建
            {
                Directory.CreateDirectory(pt);
            }

            string filePath = this.FileUpload1.PostedFile.FileName;                                   //客户端文件的实际地址
            string serverPath = path + filePath.Substring(filePath.LastIndexOf("\\") + 1);//上传的文件保存在服务器端的路径
            string fileName = filePath.Substring(filePath.LastIndexOf("\\") + 1);              //文件名
            System.Text.StringBuilder builder = new System.Text.StringBuilder(filePath);
            builder.Append("<br/>上传文件的类型:" + this.FileUpload1.PostedFile.ContentType.ToString() + Environment.NewLine + "");
            builder.Append("<br/>客户端文件地址:" + this.FileUpload1.PostedFile.FileName + Environment.NewLine + "");
            builder.Append("<br/>上传文件的文件名:" + fileName + Environment.NewLine + "");
            builder.Append("<br/>上传文件的扩展名:" + filePath.Substring(filePath.LastIndexOf(".") + 1) + Environment.NewLine + "");
            builder.Append("<br/>上传文件的大小:" + this.FileUpload1.PostedFile.ContentLength / 1024 + "k" + Environment.NewLine + "");
            if (System.IO.File.Exists(serverPath))//判断服务器上是否有同名文件存在
            {
                this.lblState.Text = "这个文件在服务器上已经存在,请不要重复上传!";
                return;
            }
            this.FileUpload1.PostedFile.SaveAs(serverPath);//保存文件
            this.lblState.Text = builder.ToString();

            string title = this.txtTitle.Text.ToString();
            string author = this.txtAuthor.Text.ToString();
            decimal price = Convert.ToDecimal(this.txtprice.Text.ToString());
            Tests ts = new Tests();
            int sss = ts.test(title, fileName, author, price);
            Response.Write(sss);
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);

        }
    }