asp.net打开服务器文件夹(net在哪个文件夹)
- 服务器
- 2022-12-18 21:30:24
- 33
本篇文章给大家谈谈asp.net打开服务器文件夹,以及net在哪个文件夹对应的知识点,希望对各位有所帮助,不要忘了收藏本站喔。
本文目录一览:
- 1、asp.net怎样用资源管理器打开服务器端的文件夹?
- 2、ASP.NET 打开本地磁盘或者服务器上的文件
- 3、ASP.net 实现打开服务器FTP文件夹
- 4、ASP.NET如何打开文件夹
- 5、如何用ASP。net 打开一个文件夹,看到文件夹中的文件(比如打开一个word文件)??? 求高手指点!
asp.net怎样用资源管理器打开服务器端的文件夹?
如果是要操作服务器端的文件夹可以使用DirectoryInfo对象创建和读取,操作文件可以用FileInfo对象。用资源管理器打开服务器端文件夹,是打算用"explorer.exe"去打开指定目录吗?
如果是这样可以写个批处理,例如要查看系统字体,写下批处理:explorer C:\Windows\Fonts,运行此批处理即可打开指定文件目录。
ASP.NET 打开本地磁盘或者服务器上的文件
a href="openFile.aspx" Open file/a
这个后台,就使用
File.OpenText(........) 打开文件、读文件、返回页面
ASP.net 实现打开服务器FTP文件夹
给你一个访问ftp类。传入用户密码等,直接调用里面方法就可以了。能实现文件下载等
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.IO;
namespace JySoft.SaleFrame.Facade
{
/// summary
/// FTP 的摘要说明。
/// /summary
public class FTPServer
{
private string strRemoteHost;
private int strRemotePort;
private string strRemotePath;
private string strRemoteUser;
private string strRemotePass;
private Boolean bConnected;
#region 内部变量
/// summary
/// 服务器返回的应答信息(包含应答码)
/// /summary
private string strMsg;
/// summary
/// 服务器返回的应答信息(包含应答码)
/// /summary
private string strReply;
/// summary
/// 服务器返回的应答码
/// /summary
private int iReplyCode;
/// summary
/// 进行控制连接的socket
/// /summary
private Socket socketControl;
/// summary
/// 传输模式
/// /summary
private TransferType trType;
/// summary
/// 传输模式:二进制类型、ASCII类型
/// /summary
public enum TransferType
{
/// summary
/// Binary
/// /summary
Binary,
/// summary
/// ASCII
/// /summary
ASCII
};
/// summary
/// 接收和发送数据的缓冲区
/// /summary
private static int BLOCK_SIZE = 512;
Byte[] buffer = new Byte[ BLOCK_SIZE];
/// summary
/// 编码方式
/// /summary
Encoding ASCII = Encoding.Default;
#endregion
#region 内部函数
#region 构造函数
/// summary
/// 缺省构造函数
/// /summary
public FTPServer()
{
strRemoteHost = "";
strRemotePath = "";
strRemoteUser = "";
strRemotePass = "";
strRemotePort = 21;
bConnected = false;
}
/// summary
/// 构造函数
/// /summary
/// param name="remoteHost"/param
/// param name="remotePath"/param
/// param name="remoteUser"/param
/// param name="remotePass"/param
/// param name="remotePort"/param
public FTPServer( string remoteHost, string remotePath, string remoteUser, string remotePass, int remotePort )
{
strRemoteHost = remoteHost;
strRemotePath = remotePath;
strRemoteUser = remoteUser;
strRemotePass = remotePass;
strRemotePort = remotePort;
Connect();
}
#endregion
#region 登陆
/// summary
/// FTP服务器IP地址
/// /summary
public string RemoteHost
{
get
{
return strRemoteHost;
}
set
{
strRemoteHost = value;
}
}
/// summary
/// FTP服务器端口
/// /summary
public int RemotePort
{
get
{
return strRemotePort;
}
set
{
strRemotePort = value;
}
}
/// summary
/// 当前服务器目录
/// /summary
public string RemotePath
{
get
{
return strRemotePath;
}
set
{
strRemotePath = value;
}
}
/// summary
/// 登录用户账号
/// /summary
public string RemoteUser
{
set
{
strRemoteUser = value;
}
}
/// summary
/// 用户登录密码
/// /summary
public string RemotePass
{
set
{
strRemotePass = value;
}
}
/// summary
/// 是否登录
/// /summary
public bool Connected
{
get
{
return bConnected;
}
}
#endregion
#region 链接
/// summary
/// 建立连接
/// /summary
public void Connect()
{
socketControl = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(RemoteHost), strRemotePort);
// 链接
try
{
socketControl.Connect(ep);
}
catch(Exception)
{
throw new IOException("连接不上FTP服务器!");
}
// 获取应答码
ReadReply();
if(iReplyCode != 220)
{
DisConnect();
throw new IOException(strReply.Substring(4));
}
try
{
// 登陆
SendCommand("USER "+strRemoteUser);
if( !(iReplyCode == 331 || iReplyCode == 230) )
{
CloseSocketConnect();//关闭连接
throw new IOException(strReply.Substring(4));
}
if( iReplyCode != 230 )
{
SendCommand("PASS "+strRemotePass);
if( !(iReplyCode == 230 || iReplyCode == 202) )
{
CloseSocketConnect();//关闭连接
throw new IOException(strReply.Substring(4));
}
}
}
catch
{
throw new IOException("登录用户名密码错误!");
}
bConnected = true;
// 切换到目录
ChDir(strRemotePath);
}
/// summary
/// 关闭连接
/// /summary
public void DisConnect()
{
if( socketControl != null )
{
SendCommand("QUIT");
}
CloseSocketConnect();
}
#endregion
#region 传输模式
/// summary
/// 设置传输模式
/// /summary
/// param name="ttType"传输模式/param
public void SetTransferType(TransferType ttType)
{
if(ttType == TransferType.Binary)
{
SendCommand("TYPE I");//binary类型传输
}
else
{
SendCommand("TYPE A");//ASCII类型传输
}
if (iReplyCode != 200)
{
throw new IOException(strReply.Substring(4));
}
else
{
trType = ttType;
}
}
/// summary
/// 获得传输模式
/// /summary
/// returns传输模式/returns
public TransferType GetTransferType()
{
return trType;
}
#endregion
#region 文件操作
/// summary
/// 获得文件列表
/// /summary
/// param name="strMask"文件名的匹配字符串/param
/// returns/returns
public string[] Dir(string strMask)
{
// 建立链接
if(!bConnected)
{
Connect();
}
//建立进行数据连接的socket
Socket socketData = CreateDataSocket();
//传送命令
SendCommand("NLST " + strMask);
//分析应答代码
if(!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226))
{
return null;
}
//获得结果
strMsg = "";
while(true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
strMsg += ASCII.GetString(buffer, 0, iBytes);
if(iBytes buffer.Length)
{
break;
}
}
char[] seperator = {'\n'};
string[] strsFileList = strMsg.Split(seperator);
socketData.Close();//数据socket关闭时也会有返回码
if(iReplyCode != 226)
{
ReadReply();
if(iReplyCode != 226)
{
throw new IOException(strReply.Substring(4));
}
}
return strsFileList;
}
/// summary
/// 获取文件大小
/// /summary
/// param name="strFileName"文件名/param
/// returns文件大小/returns
private long GetFileSize(string strFileName)
{
if(!bConnected)
{
Connect();
}
SendCommand("SIZE " + Path.GetFileName(strFileName));
long lSize=0;
if(iReplyCode == 213)
{
lSize = Int64.Parse(strReply.Substring(4));
}
else
{
throw new IOException(strReply.Substring(4));
}
return lSize;
}
/// summary
/// 删除
/// /summary
/// param name="strFileName"待删除文件名/param
public void Delete(string strFileName)
{
if(!bConnected)
{
Connect();
}
SendCommand("DELE "+strFileName);
if(iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
/// summary
/// 重命名(如果新文件名与已有文件重名,将覆盖已有文件)
/// /summary
/// param name="strOldFileName"旧文件名/param
/// param name="strNewFileName"新文件名/param
public void Rename(string strOldFileName,string strNewFileName)
{
if(!bConnected)
{
Connect();
}
SendCommand("RNFR "+strOldFileName);
if(iReplyCode != 350)
{
throw new IOException(strReply.Substring(4));
}
// 如果新文件名与原有文件重名,将覆盖原有文件
SendCommand("RNTO "+strNewFileName);
if(iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
#endregion
#region 上传和下载
/// summary
/// 下载一批文件
/// /summary
/// param name="strFileNameMask"文件名的匹配字符串/param
/// param name="strFolder"本地目录(不得以\结束)/param
public void Get(string strFileNameMask,string strFolder)
{
if(!bConnected)
{
Connect();
}
string[] strFiles = Dir(strFileNameMask);
foreach(string strFile in strFiles)
{
if(!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串
{
Get(strFile,strFolder,strFile);
}
}
}
/// summary
/// 下载一个文件
/// /summary
/// param name="strRemoteFileName"要下载的文件名/param
/// param name="strFolder"本地目录(不得以\结束)/param
/// param name="strLocalFileName"保存在本地时的文件名/param
public void Get(string strRemoteFileName,string strFolder,string strLocalFileName)
{
if(!bConnected)
{
Connect();
}
SetTransferType(TransferType.Binary);
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName;
}
if(!File.Exists(strLocalFileName))
{
Stream st = File.Create(strLocalFileName);
st.Close();
}
FileStream output = new
FileStream(strFolder + "\\" + strLocalFileName,FileMode.Create);
Socket socketData = CreateDataSocket();
SendCommand("RETR " + strRemoteFileName);
if(!(iReplyCode == 150 || iReplyCode == 125
|| iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
while(true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
output.Write(buffer,0,iBytes);
if(iBytes = 0)
{
break;
}
}
output.Close();
if (socketData.Connected)
{
socketData.Close();
}
if(!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if(!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
/// summary
/// 上传一批文件
/// /summary
/// param name="strFolder"本地目录(不得以\结束)/param
/// param name="strFileNameMask"文件名匹配字符(可以包含*和?)/param
public void Put(string strFolder,string strFileNameMask)
{
string[] strFiles = Directory.GetFiles(strFolder,strFileNameMask);
foreach(string strFile in strFiles)
{
//strFile是完整的文件名(包含路径)
Put(strFile);
}
}
/// summary
/// 上传一个文件
/// /summary
/// param name="strFileName"本地文件名/param
public void Put(string strFileName)
{
if(!bConnected)
{
Connect();
}
Socket socketData = CreateDataSocket();
SendCommand("STOR "+Path.GetFileName(strFileName));
if( !(iReplyCode == 125 || iReplyCode == 150) )
{
throw new IOException(strReply.Substring(4));
}
FileStream input = new
FileStream(strFileName,FileMode.Open);
int iBytes = 0;
while ((iBytes = input.Read(buffer,0,buffer.Length)) 0)
{
socketData.Send(buffer, iBytes, 0);
}
input.Close();
if (socketData.Connected)
{
socketData.Close();
}
if(!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if(!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
#endregion
#region 目录操作
/// summary
/// 创建目录
/// /summary
/// param name="strDirName"目录名/param
public void MkDir(string strDirName)
{
if(!bConnected)
{
Connect();
}
SendCommand("MKD "+strDirName);
if(iReplyCode != 257)
{
throw new IOException(strReply.Substring(4));
}
}
/// summary
/// 删除目录
/// /summary
/// param name="strDirName"目录名/param
public void RmDir(string strDirName)
{
if(!bConnected)
{
Connect();
}
SendCommand("RMD "+strDirName);
if(iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
/// summary
/// 改变目录
/// /summary
/// param name="strDirName"新的工作目录名/param
public void ChDir(string strDirName)
{
if(strDirName.Equals(".") || strDirName.Equals(""))
{
return;
}
if(!bConnected)
{
Connect();
}
SendCommand("CWD "+strDirName);
if(iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
this.strRemotePath = strDirName;
}
#endregion
/// summary
/// 将一行应答字符串记录在strReply和strMsg
/// 应答码记录在iReplyCode
/// /summary
private void ReadReply()
{
strMsg = "";
strReply = ReadLine();
iReplyCode = Int32.Parse(strReply.Substring(0,3));
}
/// summary
/// 建立进行数据连接的socket
/// /summary
/// returns数据连接socket/returns
private Socket CreateDataSocket()
{
SendCommand("PASV");
if(iReplyCode != 227)
{
throw new IOException(strReply.Substring(4));
}
int index1 = strReply.IndexOf('(');
int index2 = strReply.IndexOf(')');
string ipData =
strReply.Substring(index1+1,index2-index1-1);
int[] parts = new int[6];
int len = ipData.Length;
int partCount = 0;
string buf="";
for (int i = 0; i len partCount = 6; i++)
{
char ch = Char.Parse(ipData.Substring(i,1));
if (Char.IsDigit(ch))
buf+=ch;
else if (ch != ',')
{
throw new IOException("Malformed PASV strReply: " +
strReply);
}
if (ch == ',' || i+1 == len)
{
try
{
parts[partCount++] = Int32.Parse(buf);
buf="";
}
catch (Exception)
{
throw new IOException("Malformed PASV strReply: " +
strReply);
}
}
}
string ipAddress = parts[0] + "."+ parts[1]+ "." +
parts[2] + "." + parts[3];
int port = (parts[4] 8) + parts[5];
Socket s = new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
IPEndPoint ep = new
IPEndPoint(IPAddress.Parse(ipAddress), port);
try
{
s.Connect(ep);
}
catch(Exception)
{
throw new IOException("Can't connect to remote server");
}
return s;
}
/// summary
/// 关闭socket连接(用于登录以前)
/// /summary
private void CloseSocketConnect()
{
if(socketControl!=null)
{
socketControl.Close();
socketControl = null;
}
bConnected = false;
}
/// summary
/// 读取Socket返回的所有字符串
/// /summary
/// returns包含应答码的字符串行/returns
private string ReadLine()
{
while(true)
{
int iBytes = socketControl.Receive(buffer, buffer.Length, 0);
strMsg += ASCII.GetString(buffer, 0, iBytes);
if(iBytes buffer.Length)
{
break;
}
}
char[] seperator = {'\n'};
string[] mess = strMsg.Split(seperator);
if(strMsg.Length 2)
{
strMsg = mess[mess.Length-2];
//seperator[0]是10,换行符是由13和0组成的,分隔后10后面虽没有字符串,
//但也会分配为空字符串给后面(也是最后一个)字符串数组,
//所以最后一个mess是没用的空字符串
//但为什么不直接取mess[0],因为只有最后一行字符串应答码与信息之间有空格
}
else
{
strMsg = mess[0];
}
if(!strMsg.Substring(3,1).Equals(" "))//返回字符串正确的是以应答码(如220开头,后面接一空格,再接问候字符串)
{
return ReadLine();
}
return strMsg;
}
/// summary
/// 发送命令并获取应答码和最后一行应答字符串
/// /summary
/// param name="strCommand"命令/param
private void SendCommand(string strCommand)
{
Byte[] cmdBytes = ASCII.GetBytes((strCommand + "\r\n").ToCharArray());
socketControl.Send(cmdBytes, cmdBytes.Length, 0);
ReadReply();
}
#endregion
}
}
ASP.NET如何打开文件夹
实际上你打开图片的时候是要求有路径的。
一般的方法是:
1、Server.MapPath("/")
注:获得应用程序根目录所在的位置,如 C:\Inetpub\wwwroot\。
2、Server.MapPath("./")
注:获得所在页面的当前目录,等价于Server.MapPath("")。
3、Server.MapPath("../")
注:获得所在页面的上级目录。
4、Server.MapPath("~/")
注:如果Server.MapPath("/")用不了 ,那么试试Server.MapPath("~")
如何用ASP。net 打开一个文件夹,看到文件夹中的文件(比如打开一个word文件)??? 求高手指点!
不如:Excel,
1.要把文件保存在自定义的目录下面(比如:文件夹:Excel-Download)
2.要先下载才能打开
a href="../Excel-Download/药品数据信息表.xls"Excel格式下载/a
祝你好运!
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