从数据库中读取二进制字符并转化为图片

private void Page_Load(object sender, System.EventArgs e){ string strSql = "select top 1 imgContent from tb_o_images order by imgSerial desc"; SqlDataReader reader = SqlHelper.ExecuteReader(this.connStr, CommandType.Text, strSql); reader.Read(); Response.ContentType = "application/octet-stream"; Response.BinaryWrite(((Byte[])reader["imgContent"]); Response.End(); reader.Close();}