C#实现上传照片到物理路径，并且将地址保存到数据库的小例子
效果：
思路：
首先，获取图片物理地址，然后进行判断将图片保存到文件夹下，再将图片的信息保存到数据库。
数据库：
create table image1
(
id int identity(1,1) primary key,
imagename varchar(100) ,
imagetype varchar(20),
imagepath varchar(200)
)
代码：
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td colspan="2" style="height: 21px">
</td>
</tr>
<tr>
<td style="width: 400px">
<asp:fileupload id="fileupload1" runat="server" />
<asp:label id="label1" runat="server" forecolor="red"></asp:label>
</td>
<td style="width: 80px">
<asp:button id="uploadbutton" runat="server" text="上传图片" onclick="uploadbutton_click" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<br />
<br />
<asp:image id="image1" runat="server" height="118px" width="131px" />
</td>
</tr>
</table>
</div>
</form>
</body>
using system;
using system.collections.generic;
using system.linq;
using system.web;
using system.web.ui;
using system.web.ui.webcontrols;
using system.io;
using system.configuration;
using system.data;
using system.data.sqlclient;
namespace inexceloutexcel
{
public partial class upword : system.web.ui.page
{
protected void page_load(object sender, eventargs e)
{
}
string sqlstring = configurationmanager.connectionstrings["connectionstr"].tostring();
protected void uploadbutton_click(object sender, eventargs e)
{
try
{
using (sqlconnection sqlcon = new sqlconnection(sqlstring))
{
string fullname = fileupload1.postedfile.filename;//获取图片物理地址
fileinfo fi = new fileinfo(fullname);
string name = fi.name;//获取图片名称
string type = fi.extension;//获取图片类型
if (type == ".jpg" || type == ".gif" || type == ".bmp" || type == ".png")
{
string savepath = server.mappath("~\\excel");//图片保存到文件夹下
this.fileupload1.postedfile.saveas(savepath + "\\" + name);//保存路径
this.image1.visible = true;
this.image1.imageurl = "~\\excel" + "\\" + name;//界面显示图片
string sql = "insert into image1(imagename,imagetype,imagepath) values('" + name + "','" + type + "','~\\excel" + name + "')";
sqlcommand cmd = new sqlcommand(sql, sqlcon);
sqlcon.open();
cmd.executenonquery();
this.label1.text = "上传成功";
}
else
{
this.label1.text = "请选择正确的格式图片";
}
}
}
catch (exception ex)
{
response.write(ex.message);
}
}
}
}