asp文件夹上传
㈠ asp.net用FileUpload控件上传.zip的压缩包到服务器之后自动解压到指定的文件夹下怎么实现
分为两步：
1.
文件上传到服务器某个目录，这一步比较简单；
2.
将文件进行解压到某个目录，这一步需要用到一个Ionic.Zip.dll。
㈡ ASP网站中，怎样把本地文件中的图片，上传到网站中的image文件夹中
Asp.Net上传文件示例（保存文件路径到数据库）
把下面的代码保存为Upload.aspx即可运行（事先在同目录下建立一个Upload文件夹保存上传的文件，再建立一个数据库、表Upload，字段ID：自动编号，FilePath：文本型）：
<%@Import Namespace =Namespace="System.Data"%>
<%'@Import Namespace="System.Data.OleDb"%> <!--Access数据库用这个-->
<%@Import Namespace =Namespace="System.Data.SqlClient"%> <!--SQL Server数据库用这个-->
<script language="VB" runat="server">
Sub UploadFile()Sub UploadFile(sender As Object, e As EventArgs)
Dim FileExt
FileExt = LCase(Right(Trim(FileUp.Value),3))
If FileExt = "gif" Or FileExt = "jpg" Or FileExt = "bmp" Or FileExt = "png" Or FileExt = "tif" Or LCase(Right(Trim(FileUp.Value),4)) = "jpeg" Then
If FileUp.PostedFile.ContentLength = 0 Then
FileInfo.Visible = False
Exit Sub
Else
FileInfo.Visible = True
End If
FSize.Text = CStr(FileUp.PostedFile.ContentLength)
FName.Text = FileUp.PostedFile.FileName
Dim FileSplit() As String = Split( FileUp.PostedFile.FileName, "\" )
Dim FileName As String = FileSplit(FileSplit.Length-1)
FileUp.PostedFile.SaveAs( Server.MapPath(".") & "\Upload\" & FileName )
'把文件路径写入数据库 By Dicky 2005-7-12 9:26:29
' Access数据库用这个
' Dim objCommand As OleDbCommand
' Dim objConnection As OleDbConnection
' objConnection = New OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source="+Server.MapPath("Upload.mdb"))
' objCommand = New OleDbCommand("Insert Into Upload (FilePath) Values ('Upload/"+FileName+"')" , objConnection)
' Access数据库用这个
' SQL Server数据库用这个
Dim objCommand As SqlCommand
Dim objConnection As SqlConnection
objConnection = New SqlConnection("Server=localhost;Uid=sa;Pwd=;Database=Shat_edg")
objCommand = New SqlCommand("Insert Into Upload (FilePath) Values ('Upload/"+FileName+"')" , objConnection)
' SQL Server数据库用这个
objConnection.Open()
objCommand.ExecuteNonQuery()
objConnection.Close()
'把文件路径写入数据库 By Dicky 2005-7-12 9:26:29
Dim Exts() As String = Split( FileName, "." )
Dim Ext As String = LCase(Exts(Exts.Length-1))
If Ext <> "jpg" And Ext <> "jpeg" And Ext <> "gif" And Ext <> "txt" And Ext <> "htm" And Ext <> "html" Then
FDisplay.Visible = False
Else
FDisplay.Text = "<A Target='_blank' HREF='Upload/" & _
FileName & "'>上传文件</A>"
End If
Response.Write("上传成功！")
Else
' Msgbox("对不起，只能上传扩展名为gif、jpg、bmp、png、tif或jpeg等图片文件！",65,"a")
Response.Write("对不起，只能上传扩展名为gif、jpg、bmp、png、tif或jpeg等图片文件！")
End If
End Sub
</script>
<Html>
<head>
<title>文件上传</title>
</head>
<Body BgColor=White>
<H3>上传文件<Hr></H3>
<Form Name="Form1" Enctype="multipart/form-data" runat="server">
上传文件
<Input Type="File" id="FileUp" runat="server"><P>
<Asp:button id="Upload" OnClick="UploadFile" Text="Upload"
runat="server"/>
</form><Hr>
<Div id="FileInfo" Visible="False" runat="server">
上传文件名 <Asp:Label id="FName" runat="server"/><br>
上传文件大小 <Asp:Label id="FSize" runat="server"/><br>
<Asp:Label id="FDisplay" runat="server"/>
</Div>
</Body>
</Html>
㈢ asp网站上传图片功能，上传到文件夹并将目录存至access数据库库中，能给实例，或给个具体点的代码
Sub upfilttodir(formPath)
dim upload,file,formName,iCount
set upload=new upload_5xsoft ''建立上传对象
dim upFile()
dim I
if right(formPath,1)<>"/" then formPath=formPath&"/"
dim textfielda,textfieldb,textfieldc,selecta,selectb,checkbox,filea,fileb,filec
iCount=0
for each formName in upload.objFile ''列出所有上传了的文件
set file=upload.file(formName) ''生成一个文件对象
if file.FileSize>0 then ''如果 FileSize > 0 说明有文件数据
file.SaveAs Server.mappath(formPath&file.FileName) ''保存文件
response.write file.FilePath&file.FileName&" ("&file.FileSize&") => "&formPath&File.FileName&" Successful!<br>"
Redim Preserve upFile(iCount)
upFile(iCount)=formPath&File.FileName
iCount=iCount+1
'Conn.Execute "Insert Into [upload](filename,filesize,[update],cnstr) values('"&formPath&File.FileName&"',"&file.FileSize&",#"&Cdate(Date())&"#,'"&upload.form("textfielda")&"')"
end if
set file=nothing
next
files=Ubound(upFile)+1
Response.Write "共上传了"& iCount &"个文件：<br>"
for each formName in upload.objForm ''列出所有form数据
response.write formName&"="&upload.form(formName)&"<br>"
next
'for each formName in upload.objForm ''列出所有form数据
'response.write formName&"="&upload.form(formName)&"<br>"
set upload=nothing ''删除此对象
End sub
用法：
<%
Call upfilttodir("uploadfile/"& SESSION("ADMIN"))
Response.Write("<script language=javascript>alert('上传成功！\n您一共上传了"& iCount &"个文件。');location.href='listfile.asp?Currentpath=uploadfile/"& SESSION("ADMIN") &"'</script>")
%>
---------------------------------------
保存至数据库只需要在上传之后执行写入数据库的操作，——便是我代码中注释掉的那行：
'Conn.Execute "Insert Into [upload](filename,filesize,[update],cnstr) values('"&formPath&File.FileName&"',"&file.FileSize&",#"&Cdate(Date())&"#,'"&upload.form("textfielda")&"')"
㈣ 求ASP.NET WEB项目文件夹上传下载解决方案
ASP.NET上传文件用FileUpLoad就可以，但是对文件夹的操作却不能用FileUpLoad来实现。
下面这个示例便是使用ASP.NET来实现上传文件夹并对文件夹进行压缩以及解压。
ASP.NET页面设计：TextBox和Button按钮。
TextBox中需要自己受到输入文件夹的路径（包含文件夹），通过Button实现选择文件夹的问题还没有解决，暂时只能手动输入。
两种方法：生成rar和zip。
1.生成rar
using Microsoft.Win32;
using System.Diagnostics;
protected void Button1Click(object sender, EventArgs e)
{
RAR(@"E：95413594531GIS", "tmptest", @"E：95413594531");
}
///
///压缩文件
///
///需要压缩的文件夹或者单个文件
///生成压缩文件的文件名
///生成压缩文件保存路径
///
protected bool RAR(string DFilePath, string DRARName,string DRARPath)
{
String therar;
RegistryKey theReg;
Object theObj;
String theInfo;
ProcessStartInfo theStartInfo;
Process theProcess;
try
{
theReg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRAR.exeShellOpenCommand"); //注：未在注册表的根路径找到此路径
theObj = theReg.GetValue("");
therar = theObj.ToString();
theReg.Close();
therar = therar.Substring(1, therar.Length - 7);
theInfo = " a" + " " + DRARName + "" + DFilePath +" -ep1"; //命令 + 压缩后文件名 + 被压缩的文件或者路径
theStartInfo = new ProcessStartInfo();
theStartInfo.FileName = therar;
theStartInfo.Arguments = theInfo;
theStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
theStartInfo.WorkingDirectory = DRARPath ; //RaR文件的存放目录。
theProcess = new Process();
theProcess.StartInfo = theStartInfo;
theProcess.Start();
theProcess.WaitForExit();
theProcess.Close();
return true;
}
catch (Exception ex)
{
return false;
}
}
///
///解压缩到指定文件夹
///
///压缩文件存在的目录
///压缩文件名称
///解压到文件夹
///
protected bool UnRAR(string RARFilePath,string RARFileName,string UnRARFilePath)
{
//解压缩
String therar;
RegistryKey theReg;
Object theObj;
String theInfo;
ProcessStartInfo theStartInfo;
Process theProcess;
try
{
theReg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRar.exeShellOpenCommand");
theObj = theReg.GetValue("");
therar = theObj.ToString();
theReg.Close();
therar = therar.Substring(1, therar.Length - 7);
theInfo = @" X " + " " + RARFilePath + RARFileName + " " + UnRARFilePath;
theStartInfo = new ProcessStartInfo();
theStartInfo.FileName = therar;
theStartInfo.Arguments = theInfo;
theStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
theProcess = new Process();
theProcess.StartInfo = theStartInfo;
theProcess.Start();
return true;
}
catch (Exception ex)
{
return false;
}
}
注：这种方法在在电脑注册表中未找到应有的路径，未实现，仅供参考。
2.生成zip
通过调用类库ICSharpCode.SharpZipLib.dll
该类库可以从网上下载。也可以从本链接下载：SharpZipLib_0860_Bin.zip
增加两个类：Zip.cs和UnZip.cs
（1）Zip.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Collections;
using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
namespace UpLoad
{
/// <summary>
///功能：压缩文件
/// creator chaodongwang 2009-11-11
/// </summary>
public class Zip
{
/// <summary>
///压缩单个文件
/// </summary>
/// <param name="FileToZip">被压缩的文件名称(包含文件路径)</param>
/// <param name="ZipedFile">压缩后的文件名称(包含文件路径)</param>
/// <param name="CompressionLevel">压缩率0（无压缩）-9（压缩率最高）</param>
/// <param name="BlockSize">缓存大小</param>
public void ZipFile(string FileToZip, string ZipedFile, int CompressionLevel)
{
//如果文件没有找到，则报错
if (!System.IO.File.Exists(FileToZip))
{
throw new System.IO.FileNotFoundException("文件：" + FileToZip + "没有找到！");
}
if (ZipedFile == string.Empty)
{
ZipedFile = Path.GetFileNameWithoutExtension(FileToZip) + ".zip";
}
if (Path.GetExtension(ZipedFile) != ".zip")
{
ZipedFile = ZipedFile + ".zip";
}
////如果指定位置目录不存在，创建该目录
//string zipedDir = ZipedFile.Substring(0,ZipedFile.LastIndexOf("\"));
//if (!Directory.Exists(zipedDir))
//Directory.CreateDirectory(zipedDir);
//被压缩文件名称
string filename = FileToZip.Substring(FileToZip.LastIndexOf('\') + 1);
System.IO.FileStream StreamToZip = new System.IO.FileStream(FileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read);
System.IO.FileStream ZipFile = System.IO.File.Create(ZipedFile);
ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
ZipEntry ZipEntry = new ZipEntry(filename);
ZipStream.PutNextEntry(ZipEntry);
ZipStream.SetLevel(CompressionLevel);
byte[] buffer = new byte[2048];
System.Int32 size = StreamToZip.Read(buffer, 0, buffer.Length);
ZipStream.Write(buffer, 0, size);
try
{
while (size < StreamToZip.Length)
{
int sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
ZipStream.Write(buffer, 0, sizeRead);
size += sizeRead;
}
}
catch (System.Exception ex)
{
throw ex;
}
finally
{
ZipStream.Finish();
ZipStream.Close();
StreamToZip.Close();
}
}
/// <summary>
///压缩文件夹的方法
/// </summary>
public void ZipDir(string DirToZip, string ZipedFile, int CompressionLevel)
{
//压缩文件为空时默认与压缩文件夹同一级目录
if (ZipedFile == string.Empty)
{
ZipedFile = DirToZip.Substring(DirToZip.LastIndexOf("\") + 1);
ZipedFile = DirToZip.Substring(0, DirToZip.LastIndexOf("\")) +"\"+ ZipedFile+".zip";
}
if (Path.GetExtension(ZipedFile) != ".zip")
{
ZipedFile = ZipedFile + ".zip";
}
using (ZipOutputStream zipoutputstream = new ZipOutputStream(File.Create(ZipedFile)))
{
zipoutputstream.SetLevel(CompressionLevel);
Crc32 crc = new Crc32();
Hashtable fileList = getAllFies(DirToZip);
foreach (DictionaryEntry item in fileList)
{
FileStream fs = File.OpenRead(item.Key.ToString());
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
ZipEntry entry = new ZipEntry(item.Key.ToString().Substring(DirToZip.Length + 1));
entry.DateTime = (DateTime)item.Value;
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
zipoutputstream.PutNextEntry(entry);
zipoutputstream.Write(buffer, 0, buffer.Length);
}
}
}
/// <summary>
///获取所有文件
/// </summary>
/// <returns></returns>
private Hashtable getAllFies(string dir)
{
Hashtable FilesList = new Hashtable();
DirectoryInfo fileDire = new DirectoryInfo(dir);
if (!fileDire.Exists)
{
throw new System.IO.FileNotFoundException("目录:" + fileDire.FullName + "没有找到!");
}
this.getAllDirFiles(fileDire, FilesList);
this.getAllDirsFiles(fileDire.GetDirectories(), FilesList);
return FilesList;
}
/// <summary>
///获取一个文件夹下的所有文件夹里的文件
/// </summary>
/// <param name="dirs"></param>
/// <param name="filesList"></param>
private void getAllDirsFiles(DirectoryInfo[] dirs, Hashtable filesList)
{
foreach (DirectoryInfo dir in dirs)
{
foreach (FileInfo file in dir.GetFiles("*.*"))
{
filesList.Add(file.FullName, file.LastWriteTime);
}
this.getAllDirsFiles(dir.GetDirectories(), filesList);
}
}
/// <summary>
///获取一个文件夹下的文件
/// </summary>
/// <param name="strDirName">目录名称</param>
/// <param name="filesList">文件列表HastTable</param>
private void getAllDirFiles(DirectoryInfo dir, Hashtable filesList)
{
foreach (FileInfo file in dir.GetFiles("*.*"))
{
filesList.Add(file.FullName, file.LastWriteTime);
}
}
}
}
（2）UnZip.cs
using System.Collections.Generic;
using System.Linq;
using System.Web;
/// <summary>
///解压文件
/// </summary>
using System;
using System.Text;
using System.Collections;
using System.IO;
using System.Diagnostics;
using System.Runtime.Serialization.Formatters.Binary;
using System.Data;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Zip.Compression;
using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
namespace UpLoad
{
/// <summary>
///功能：解压文件
/// creator chaodongwang 2009-11-11
/// </summary>
public class UnZipClass
{
/// <summary>
///功能：解压zip格式的文件。
/// </summary>
/// <param name="zipFilePath">压缩文件路径</param>
/// <param name="unZipDir">解压文件存放路径,为空时默认与压缩文件同一级目录下，跟压缩文件同名的文件夹</param>
/// <param name="err">出错信息</param>
/// <returns>解压是否成功</returns>
public void UnZip(string zipFilePath, string unZipDir)
{
if (zipFilePath == string.Empty)
{
throw new Exception("压缩文件不能为空！");
}
if (!File.Exists(zipFilePath))
{
throw new System.IO.FileNotFoundException("压缩文件不存在！");
}
//解压文件夹为空时默认与压缩文件同一级目录下，跟压缩文件同名的文件夹
if (unZipDir == string.Empty)
unZipDir = zipFilePath.Replace(Path.GetFileName(zipFilePath), Path.GetFileNameWithoutExtension(zipFilePath));
if (!unZipDir.EndsWith("\"))
unZipDir += "\";
if (!Directory.Exists(unZipDir))
Directory.CreateDirectory(unZipDir);
using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
{
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
if (directoryName.Length > 0)
{
Directory.CreateDirectory(unZipDir + directoryName);
}
if (!directoryName.EndsWith("\"))
directoryName += "\";
if (fileName != String.Empty)
{
using (FileStream streamWriter = File.Create(unZipDir + theEntry.Name))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
}
}
}
}
以上这两个类库可以直接在程序里新建类库，然后复制粘贴，直接调用即可。
主程序代码如下所示：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using Microsoft.Win32;
using System.Diagnostics;
namespace UpLoad
{
public partial class UpLoadForm : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
if (TextBox1.Text == "") //如果输入为空,则弹出提示
{
this.Response.Write("<script>alert('输入为空，请重新输入！');window.opener.location.href=window.opener.location.href;</script>");
}
else
{
//压缩文件夹
string zipPath = TextBox1.Text.Trim(); //获取将要压缩的路径(包括文件夹)
string zipedPath = @"c: emp"; //压缩文件夹的路径(包括文件夹)
Zip Zc = new Zip();
Zc.ZipDir(zipPath, zipedPath, 6);
this.Response.Write("<script>alert('压缩成功！');window.opener.location.href=window.opener.location.href;</script>");
//解压文件夹
UnZipClass unZip = new UnZipClass();
unZip.UnZip(zipedPath+ ".zip", @"c: emp"); //要解压文件夹的路径(包括文件名)和解压路径(temp文件夹下的文件就是输入路径文件夹下的文件)
this.Response.Write("<script>alert('解压成功！');window.opener.location.href=window.opener.location.href;</script>");
}
}
}
}
本方法经过测试，均已实现。
另外，附上另外一种上传文件方法，经测试已实现，参考链接：http://blog.ncmem.com/wordpress/2019/11/20/net%e4%b8%8a%e4%bc%a0%e5%a4%a7%e6%96%87%e4%bb%b6%e7%9a%84%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88/