asp.net实现存储和读取数据库图片_实用技巧_

上传图片
展示图片

 create database Imagetest go use Imagetest CREATE TABLE [dbo].[imageTable]( [ID] [int] IDENTITY(1,1) NOT NULL, [imageData] [image] NULL, CONSTRAINT [PK_imageTable] PRIMARY KEY CLUSTERED ( [ID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

 protected void btn_submit_Click(object sender, EventArgs e) { ImagetestEntities ie = new ImagetestEntities(); imageTable it = new imageTable(); it.imageData = ful_image.FileBytes; it= ie.imageTables.Add(it); ie.SaveChanges(); if(it.ID!=0) { lbl_message.Text = "图片上传成功"; } else { lbl_message.Text = "图片上传失败"; } }

 protected void btn_show_Click(object sender, EventArgs e) { ImagetestEntities ie = new ImagetestEntities(); List list= ie.imageTables.ToList(); foreach (imageTable item in list) { Image img = new Image(); img.ImageUrl ="data:image/png;base64,"+ Convert.ToBase64String(item.imageData); pn_images.Controls.Add(img); } }