读取文件夹，将文件直接保存到数据库中
前台文件
1
<%
@ Page Language="C#" AutoEventWireup="true" CodeFile="main.aspx.cs" Inherits="CommPage_main" %>2
3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">4
5
<html xmlns="http://www.w3.org/1999/xhtml" >6
<head runat="server">7
<title>无标题页</title>8
</head>9
<body>10
<form id="form1" runat="server">11
<div>12
<table style="border:0; width:100%; text-align:right;">13
<tr>14
<td style="height: 26px"></td>15
<td style="height: 26px"></td>16
<td style="height: 26px"><asp:Button ID="btnSaveToDataBase" runat="server" Height="24px" OnClick="btnSaveToDataBase_Click" Text="图片保存到数据库中" Width="176px" /></td>17
</tr>18
</table>19
</div>20
21
</form>22
</body>23
</html>24
CS文件
1
using System;2
using System.Data;3
using System.Configuration;4
using System.Collections;5
using System.Web;6
using System.Web.Security;7
using System.Web.UI;8
using System.Web.UI.WebControls;9
using System.Web.UI.WebControls.WebParts;10
using System.Web.UI.HtmlControls;11
12
using System.Data.SqlClient;13
using System.IO;14
using System.Drawing;15
using System.Drawing.Imaging;16
using SuntownBase;17
18
public partial class CommPage_main : System.Web.UI.Page19
{20
STShared ST = new STShared();21
22
protected void Page_Load(object sender, EventArgs e)23
{24
25
}26
27
protected void btnSaveToDataBase_Click(object sender, EventArgs e)28
{29
int i = 0;//文件计数30
31
string[] dirs = Directory.GetFiles(@"D:\aaa\images");32
if (dirs.Length != 0)33
{34
try35
{36
//Response.Write("共有" + dirs.Length + "个文件!");37
foreach (string dir in dirs)38
{39
//Response.Write("<p>" + dir);40
//如果文件类型不匹配,则重新循环41
if ((dir.ToLower()).IndexOf(".jpg") == -1 && (dir.ToLower()).IndexOf(".gif") == -1)42
{43
continue;44
}45
else46
{47
i++; //文件计数 加148
}49
50
//C:\Inetpub\wwwroot\CadFormula\images\item_12.jpg51
52
//FileInfo fi = new FileInfo(openFileDialog1.PostedFile.FileName);53
54
FileInfo fi = new FileInfo(dir);55
int imgdatalen = (int)fi.Length;56
byte[] imgdata = new byte[imgdatalen];57
Stream imgdatastream = fi.OpenRead();58
int n = imgdatastream.Read(imgdata, 0, imgdatalen);59
string ConnectionString = "server=.;database=image;uid=sa;pwd=admin";60
SqlConnection conn = new SqlConnection(ConnectionString);61
62
string sql = "insert into [image] (picture) values (@imgdata)";63
64
SqlCommand cmd = new SqlCommand(sql, conn);65
66
SqlParameter paramData = new SqlParameter("@imgdata", SqlDbType.Image);67
paramData.Value = imgdata;68
cmd.Parameters.Add(paramData);69
70
conn.Open();71
cmd.ExecuteNonQuery();72
conn.Close();73
}74
}75
catch (Exception err)76
{77
Response.Write("出现错误:" + err.Message.ToString());78
}79
finally80
{81
if(i == 0)82
{83
ST.MessageBox(Page,"没有匹配的文件!","确定");84
}85
else86
{87
ST.MessageBox(Page, "成功上传" + i.ToString() + "个文件!","确定");88
}89
//最后删除此文件夹下的文件90
}91
}92
}93
}94
===============================================
下面是读取文件
前台：
1
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test2.aspx.cs" Inherits="CommPage_test2" %>2
3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">4
5
<html xmlns="http://www.w3.org/1999/xhtml" >6
<head runat="server">7
<title>无标题页</title>8
</head>9
<body>10
<form id="form1" runat="server">11
<div>12
<img id=ImgSpan1 border=0 src="testimg/select.jpg"><br>13
<img id=img border=0>14
<br />15
<input type=button value=顺转90度 onclick="document.all.ImgSpan.style.filter='progid:DXImageTransform.Microsoft.BasicImage(Rotation=1)'" id="Button3">16
<input type=button value=顺转180度 onclick="document.all.ImgSpan.style.filter='progid:DXImageTransform.Microsoft.BasicImage(Rotation=2)'">17
<input type=button value=逆转90度 onclick="document.all.ImgSpan.style.filter='progid:DXImageTransform.Microsoft.BasicImage(Rotation=3)'">18
<input type=button value=恢复角度 onclick="document.all.ImgSpan.style.filter='progid:DXImageTransform.Microsoft.BasicImage(Rotation=0)'">19
<br />20
<br />21
<br />22
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="图片保存到数据库中" Height="24px" Width="176px" /><br />23
<br />24
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="显示图片" /><br />25
<br />26
<br />27
</div>28
</form>29
</body>30
</html>31
32
33
<script language="javascript">34
<!--35
function bbimg(o) 36
{ 37
var zoom=parseInt(o.style.zoom, 10)||100; 38
zoom+=event.wheelDelta/12; 39
if (zoom>0) o.style.zoom=zoom+'%'; 40
} 41
42
function addthis() 43
{ 44
var e=window.event?window.event:e; 45
var srcE=e.srcElement?e.srcElement:e.target; 46
if(!srcE) return; 47
if (String(srcE.tagName).toLowerCase()=='img'){ 48
bbimg(srcE) 49
} 50
} 51
52
function backthis()53
{ 54
var e=window.event?window.event:e; 55
var srcE=e.srcElement?e.srcElement:e.target; 56
if(!srcE) return; 57
if ((String(srcE.tagName).toLowerCase()=='img')&&(window.event.ctrlKey))58
{ 59
srcE.style.zoom='100%'; 60
}61
} 62
document.onmousewheel=addthis; 63
document.onmouseout=backthis;64
//-->65
</script> 66
下面是后台文件CS
1
using System;2
using System.Data;3
using System.Configuration;4
using System.Collections;5
using System.Web;6
using System.Web.Security;7
using System.Web.UI;8
using System.Web.UI.WebControls;9
using System.Web.UI.WebControls.WebParts;10
using System.Web.UI.HtmlControls;11
12
using System.Data.SqlClient;13
using System.IO;14
using System.Drawing;15
using System.Drawing.Imaging;16
17
public partial class CommPage_test2 : System.Web.UI.Page18
{19
protected void Page_Load(object sender, EventArgs e)20
{21
22
}23
24
protected void Button1_Click(object sender, EventArgs e)25
{26
string[] dirs = Directory.GetFiles(@"D:\aaa\images");27
if(dirs.Length !=0)28
{29
try30
{31
Response.Write("共有" + dirs.Length + "个文件!");32
foreach (string dir in dirs)33
{34
Response.Write("<p>" + dir);35
//C:\Inetpub\wwwroot\CadFormula\images\item_12.jpg36
37
//FileInfo fi = new FileInfo(openFileDialog1.PostedFile.FileName);38
39
FileInfo fi = new FileInfo(dir);40
int imgdatalen = (int)fi.Length;41
byte[] imgdata = new byte[imgdatalen];42
Stream imgdatastream = fi.OpenRead();43
int n = imgdatastream.Read(imgdata, 0, imgdatalen);44
string ConnectionString = "server=.;database=image;uid=sa;pwd=admin";45
SqlConnection conn = new SqlConnection(ConnectionString);46
47
//try '"+comment+"',"+imgdata+"48
//{49
string sql = "insert into [image] (picture) values (@imgdata)";50
51
SqlCommand cmd = new SqlCommand(sql, conn);52
53
SqlParameter paramData = new SqlParameter("@imgdata", SqlDbType.Image);54
paramData.Value = imgdata;55
cmd.Parameters.Add(paramData);56
57
conn.Open();58
cmd.ExecuteNonQuery();59
conn.Close();60
}61
}62
catch (Exception err)63
{64
Response.Write("出现错误:" + err.Message.ToString());65
}66
finally67
{ 68
Response.Write("<p>======================================");69
Response.Write("<p>成功上传<font color=#0ff>"+ dirs.Length +"</font>个文件!");70
//最后删除此文件夹下的文件71
}72
}73
}74
protected void Button2_Click(object sender, EventArgs e)75
{//读取图片显示76
MemoryStream stream = new MemoryStream();77
SqlConnection conn = new SqlConnection("server=.;database=image;uid=sa;pwd=admin");78
79
conn.Open();80
81
SqlCommand cmd = new SqlCommand("select top 1 picture from [image] order by id desc", conn);82
byte[] image = (byte[])cmd.ExecuteScalar();83
stream.Write(image, 0, image.Length);84
Bitmap bitmap = new Bitmap(stream);85
Response.ContentType = "image/Jpeg";86
bitmap.Save(Response.OutputStream, ImageFormat.Jpeg);87
conn.Close();88
stream.Close();89
}90
}91
