如何存图片到数据库中

将图片以二进制形式存入数据库时,首先要在数据库中建立一张表,将存储图片的字段类型设为Image类型,用FileStream类、BinaryReader把图片读成字节的形式,赋给一个字节数组,然后用ADO.SqlCommand对象的ExecuteNonQuery()方法来把数据保存到数据库中。主要代码如下：

private void button1_Clickobject sender, EventArgs e)

{

openFileDialog1.Filter = "*jpg|*.JPG|*.GIF|*.GIF|*.BMP|*.BMP";

if(openFileDialog1.ShowDialog()==DialogResult.OK)

{

　　　　          string fullpath =openFileDialog1.FileName;//文件路径

　      FileStream fs = new FileStream(fullpath, FileMode.Open);

byte[] imagebytes =new byte[fs.Length];

BinaryReader br = new BinaryReader(fs);

imagebytes = br.ReadBytes(Convert.ToInt32(fs.Length));

//数据库连接
SqlConnection  con = new SqlConnection("server=(local);uid=sa;pwd=;database=db_05");

con.Open();

SqlCommand com = new SqlCommand("insert into tb_08 values(@ImageList)",con);

com.Parameters.Add("ImageList", SqlDbType.Image);

com.Parameters["ImageList"].Value = imagebytes;

com.ExecuteNonQuery();

con.Close();

}

}