Asp.net中图片存储数据库以及页面读取显示通用方案-

直接在数据库存储图片对资源图片较多, 图片文件较大 类似银行内部系统中对VIP用户签名就是用签名图片方式存储的 这主要为了安全上考虑,实际需求中使用次数频繁 且常常更新 无疑中这种使数据库中数据显得有些臃肿 数据容量增大，同时也增加了访问数据库服务器的负载,而使用存储图片路径的方式:图片文件放在服务器硬盘上,数据库中只需一个文件路径指向硬盘上图片文件即可 存储方式相比存储字节流要简单容易控制 但是我在网上发现关于这种页面显示的诸多问题如下我说明一下再Asp.net对图片页面显示控制:

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.xml.Linq;


using System.Runtime.InteropServices;//调用系统API函数NameSpace

using System.Diagnostics;//命名空间提供特定的类，使您能够与系统进程、事件日志和性能计数器进行交互。

namespace TestNetWorkConAPI
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load（object sender EventArgs e）
        {
            if （!IsPostBack）
            {
                //if （!NewWorkIsConnection（））
                //{
                //   // Response.Write（“没有连接到网络!“）;
                //

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件     160310  2010-02-02 16:45  TestNetWorkConAPI\TestNetWorkConAPI\App_Data\SqlHelper（chenkai修订编写）.cs

     文件       1336  2010-01-30 10:18  TestNetWorkConAPI\TestNetWorkConAPI\Properties\AssemblyInfo.cs

     文件       6066  2010-02-03 08:36  TestNetWorkConAPI\TestNetWorkConAPI\Default.aspx.cs

     文件       7302  2010-02-01 14:24  TestNetWorkConAPI\TestNetWorkConAPI\Web.config

     文件       2664  2010-02-03 09:48  TestNetWorkConAPI\TestNetWorkConAPI\TestImageStoreToDB.aspx

     文件       5601  2010-02-02 16:56  TestNetWorkConAPI\TestNetWorkConAPI\TestNetWorkConAPI.csproj

     文件      34304  2010-02-03 09:48  TestNetWorkConAPI\TestNetWorkConAPI\bin\TestNetWorkConAPI.dll

     文件      93696  2010-02-03 09:48  TestNetWorkConAPI\TestNetWorkConAPI\bin\TestNetWorkConAPI.pdb

     文件      34304  2010-02-03 09:48  TestNetWorkConAPI\TestNetWorkConAPI\obj\Debug\TestNetWorkConAPI.dll

     文件        452  2010-02-02 19:05  TestNetWorkConAPI\TestNetWorkConAPI\obj\Debug\TestNetWorkConAPI.csproj.FileListAbsolute.txt

     文件      93696  2010-02-03 09:48  TestNetWorkConAPI\TestNetWorkConAPI\obj\Debug\TestNetWorkConAPI.pdb

     文件       1583  2010-01-30 15:22  TestNetWorkConAPI\TestNetWorkConAPI\TestClintJavaScirpt.aspx

     文件        523  2010-01-30 11:55  TestNetWorkConAPI\TestNetWorkConAPI\TestClintJavaScirpt.aspx.cs

     文件       1550  2010-01-30 12:03  TestNetWorkConAPI\TestNetWorkConAPI\TestClintJavaScirpt.aspx.designer.cs

     文件        965  2010-02-01 14:08  TestNetWorkConAPI\TestNetWorkConAPI\TestDelegate.aspx

     文件       3294  2010-02-01 14:37  TestNetWorkConAPI\TestNetWorkConAPI\TestDelegate.aspx.cs

     文件       1199  2010-02-01 11:40  TestNetWorkConAPI\TestNetWorkConAPI\TestDelegate.aspx.designer.cs

     文件      15307  2010-02-03 10:06  TestNetWorkConAPI\TestNetWorkConAPI\TestImageStoreToDB.aspx.cs

     文件        632  2010-02-02 16:37  TestNetWorkConAPI\TestNetWorkConAPI\Default.aspx

     文件       1228  2010-02-02 18:49  TestNetWorkConAPI\TestNetWorkConAPI\TestNetWorkConAPI.csproj.user

     文件       4954  2010-02-03 08:59  TestNetWorkConAPI\TestNetWorkConAPI\TestImageStoreToDB.aspx.designer.cs

     文件      11495  2010-02-02 16:59  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-04-59-42ieoswvmobmxg0saih0o55p45a43680.jpg

     文件      43600  2010-02-02 17:03  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-05-03-38en2jpn55c32ud3fpsnokgw55http_imgload.jpg

     文件     173297  2010-02-02 17:11  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-05-11-23fmbjyu45bl3zqa55i1hygqephttp_imgload4.jpg

     文件     173297  2010-02-02 17:12  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-05-12-535rf2wc55lpp2ejaxtxpps1zahttp_imgload4.jpg

     文件     513810  2010-02-02 17:26  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-05-26-48jz4nbv45oakz3h45r32e1y3gBackground.bmp

     文件     126038  2010-02-02 18:03  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-06-03-12g0dngkyr0xxmr045aotqm4bwhttp_imgload6.jpg

     文件       6640  2010-02-02 19:15  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-02-07-15-252zxpdg45dhtxc5451k3dz54520100125142513b576.jpg

     文件     126038  2010-02-03 08:35  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-03-08-35-47rr4hnz45msimfqzh4tcdv545http_imgload6.jpg

     文件      81215  2010-02-03 09:49  TestNetWorkConAPI\TestNetWorkConAPI\FileuploadDict\2010-02-03-09-49-17nbca3rq1xlr3fmfzzzmh0o55http_imgload3.jpg

............此处省略18个文件信息