再看ftp上传文件
前言
去年在项目中用到ftp上传文件，用FtpWebRequest和FtpWebResponse封装一个帮助类，这个在网上能找到很多，前台使用Uploadify控件，然后在服务器上搭建Ftp服务器，在本地测试程序上传到ftp服务器一点问题都没有，奇怪的是当发布Web和ftp到同一个IIS下，上传文件时程序直接卡死，然后页面卡死，后来我又发现把Web和ftp分开发布在两台机器上问题又得到解决，所以当时放弃了这个方案。
再看ftp上传文件
前几天偶然看到Wolfy写到一个项目总结，其中提到了用ServerU搭建服务器，突然想起来，以前还弄过ServerU呢，然后我重新做了测试。 我直接把Wolfy的FtpHelper拿出来测试，大致浏览了下程序，主要思路还是利用FtpWebRequest和FtpWebResponse来实现。
public class FTPHelper
{
#region 字段
/// <summary>
/// ftp地址，带ftp协议
/// </summary>
private string strFtpURI;
/// <summary>
/// ftp用户名
/// </summary>
private string strFtpUserID;
/// <summary>
/// ftp的ip地址
/// </summary>
private string strFtpServerIP;
/// <summary>
/// ftp用户登录密码
/// </summary>
private string strFtpPassword;
/// <summary>
/// ftp目录路径
/// </summary>
private string strFtpRemotePath;
#endregion /// <summary>
/// 连接FTP服务器
/// </summary>
/// <param name="strFtpServerIP">FTP连接地址</param>
/// <param name="strFtpRemotePath">指定FTP连接成功后的当前目录, 如果不指定即默认为根目录</param>
/// <param name="strFtpUserID">用户名</param>
/// <param name="strFtpPassword">密码</param>
public FTPHelper(string strFtpServerIP, string strFtpRemotePath, string strFtpUserID, string strFtpPassword)
{
this.strFtpServerIP = strFtpServerIP;
this.strFtpRemotePath = strFtpRemotePath;
this.strFtpUserID = strFtpUserID;
this.strFtpPassword = strFtpPassword;
this.strFtpURI = "ftp://" + strFtpServerIP + strFtpRemotePath;
} /// <summary>
/// 上载
/// </summary>
/// <param name="strFilename">本地文件路径</param>
/// <param name="strSavePath">ftp服务器文件保存路径</param>
public void Upload(string strFilename, string strSavePath)
{
FileInfo fileInf = new FileInfo(strFilename);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strSavePath + fileInf.Name));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.Proxy = null;
reqFTP.ContentLength = fileInf.Length; int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
FileStream fs = fileInf.OpenRead();
try
{
Stream strm = reqFTP.GetRequestStream();
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
fs.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
} public void Upload(HttpPostedFile file,string strSavePath)
{
FtpWebRequest reqFTP; //请求的 URI 对于此 FTP 命令无效
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strSavePath+file.FileName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.Proxy = null; int buffLength = 2048;
byte[] buff = new byte[buffLength]; Stream stream = file.InputStream;
Stream requestStream = reqFTP.GetRequestStream();
int len = stream.Read(buff, 0, buff.Length);
while (len > 0)
{
requestStream.Write(buff, 0, buffLength);
len = stream.Read(buff, 0, buffLength);
} stream.Close();
requestStream.Close(); stream.Dispose();
requestStream.Dispose(); }
/// <summary>
/// 上载
/// </summary>
/// <param name="strFilename">本地文件路径</param>
/// <param name="strSavePath">ftp服务器文件保存路径</param>
/// <param name="strStrOldName">ftp服务器文件保存的名字</param>
public void Upload(string strFilename, string strSavePath, string strStrOldName)
{
FileInfo fileInf = new FileInfo(strFilename);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strSavePath + strStrOldName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.Proxy = null;
reqFTP.ContentLength = fileInf.Length;
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
FileStream fs = fileInf.OpenRead();
try
{
Stream strm = reqFTP.GetRequestStream();
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
fs.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// 下载
/// </summary>
/// <param name="strFilePath">本地保存路径</param>
/// <param name="strFileName">文件名</param>
/// <param name="strFileName">本地临时名称</param>
public void Download(string strFilePath, string strFileName, string strLocalName)
{
try
{
FileStream outputStream = new FileStream(strFilePath + strLocalName, FileMode.Create);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strFileName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
reqFTP.UsePassive = true;
reqFTP.Proxy = null;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
readCount = ftpStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
{
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}
ftpStream.Close();
outputStream.Close();
response.Close();
}
catch (Exception ex)
{ }
}
/// <summary>
/// 下载
/// </summary>
/// <param name="strFilePath">本地保存路径</param>
/// <param name="strFileName">文件名</param>
public void Download(string strFilePath, string strFileName)
{
try
{
FileStream outputStream = new FileStream(strFilePath + strFileName, FileMode.Create);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strFileName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
reqFTP.UsePassive = true;
reqFTP.Proxy = null;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
readCount = ftpStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
{
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}
ftpStream.Close();
outputStream.Close();
response.Close();
}
catch (Exception ex)
{ }
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="strFileName">文件名</param>
public void Delete(string strFileName)
{
try
{
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strFileName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
reqFTP.KeepAlive = false;
string result = String.Empty;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
long size = response.ContentLength;
Stream datastream = response.GetResponseStream();
StreamReader sr = new StreamReader(datastream);
result = sr.ReadToEnd();
sr.Close();
datastream.Close();
response.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
} /// <summary>
/// 获取当前目录下明细(包含文件和文件夹)
/// </summary>
/// <returns></returns>
public string[] GetFilesDetailList()
{
try
{
StringBuilder result = new StringBuilder();
FtpWebRequest ftp;
ftp = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI));
ftp.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
WebResponse response = ftp.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
line = reader.ReadLine();
line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
result.Remove(result.ToString().LastIndexOf("\n"), 1);
reader.Close();
response.Close();
return result.ToString().Split('\n');
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
} /// <summary>
/// 获取FTP文件列表(包括文件夹)
/// </summary>
/// <param name="strUrl"></param>
/// <returns></returns>
private string[] GetAllList(string strUrl)
{
List<string> list = new List<string>();
FtpWebRequest req = (FtpWebRequest)WebRequest.Create(new Uri(strUrl));
req.Credentials = new NetworkCredential(strFtpPassword, strFtpPassword);
req.Method = WebRequestMethods.Ftp.ListDirectory;
req.UseBinary = true;
req.UsePassive = true;
try
{
using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())
{
using (StreamReader sr = new StreamReader(res.GetResponseStream()))
{
string s;
while ((s = sr.ReadLine()) != null)
{
list.Add(s);
}
}
}
}
catch (Exception ex)
{
throw (ex);
}
return list.ToArray();
} /// <summary>
/// 获取当前目录下文件列表(不包括文件夹)
/// </summary>
public string[] GetFileList(string strUrl)
{
StringBuilder result = new StringBuilder();
FtpWebRequest reqFTP;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strUrl));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(strFtpPassword, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
WebResponse response = reqFTP.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{ if (line.IndexOf("<DIR>") == -1)
{
result.Append(Regex.Match(line, @"[\S]+ [\S]+", RegexOptions.IgnoreCase).Value.Split(' ')[1]);
result.Append("\n");
}
line = reader.ReadLine();
}
result.Remove(result.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
}
catch (Exception ex)
{
throw (ex);
}
return result.ToString().Split('\n');
} /// <summary>
/// 判断当前目录下指定的文件是否存在
/// </summary>
/// <param name="strRemoteFileName">远程文件名</param>
public bool FileExist(string strRemoteFileName)
{
string[] fileList = GetFileList("*.*");
foreach (string str in fileList)
{
if (str.Trim() == strRemoteFileName.Trim())
{
return true;
}
}
return false;
}
/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="strDirName">目录名</param>
public void MakeDir(string strDirName)
{
FtpWebRequest reqFTP;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strDirName));
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
}
catch (Exception ex)
{
}
} /// <summary>
/// 获取指定文件大小
/// </summary>
public long GetFileSize(string strFilename)
{
FtpWebRequest reqFTP;
long fileSize = 0;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strFilename));
reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
fileSize = response.ContentLength;
ftpStream.Close();
response.Close();
}
catch (Exception ex)
{ throw ex; }
return fileSize;
} /// <summary>
/// 更改文件名
/// </summary>
public void ReName(string strCurrentFilename, string strNewFilename)
{
FtpWebRequest reqFTP;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strCurrentFilename));
reqFTP.Method = WebRequestMethods.Ftp.Rename;
reqFTP.RenameTo = strNewFilename;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
}
catch (Exception ex)
{ throw ex; }
} /// <summary>
/// 移动文件
/// </summary>
public void MovieFile(string strCurrentFilename, string strNewDirectory)
{
ReName(strCurrentFilename, strNewDirectory);
} /// <summary>
/// 切换当前目录
/// </summary>
/// <param name="bIsRoot">true:绝对路径 false:相对路径</param>
public void GotoDirectory(string strDirectoryName, bool bIsRoot)
{
if (bIsRoot)
{
strFtpRemotePath = strDirectoryName;
}
else
{
strFtpRemotePath += strDirectoryName + "/";
}
strFtpURI = "ftp://" + strFtpServerIP + "/" + strFtpRemotePath + "/";
} }
对两个上传方法的测试
其中包含3个Upload方法，两个方法第一个参数都是本地文件的绝对路径，但是在Web页面中使用file控件在后台是得不到文件绝对路径的，只能得到文件名，于是我加了第三个方法，直接用HttpPostedFile作为方法的第一个参数，用属性InputStream作为输入流。 关于这个我问下Wolfy他是怎么调用的，他是把上传的文件先存到Web站点下，然后再上传到ftp服务器上，方法可行，我没有想到，太笨了。
public void Upload(HttpPostedFile file,string strSavePath)
{
FtpWebRequest reqFTP; //请求的 URI 对于此 FTP 命令无效
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFtpURI + strSavePath+file.FileName));
reqFTP.Credentials = new NetworkCredential(strFtpUserID, strFtpPassword);
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.Proxy = null; int buffLength = 2048;
byte[] buff = new byte[buffLength]; Stream stream = file.InputStream;
Stream requestStream = reqFTP.GetRequestStream();
int len = stream.Read(buff, 0, buff.Length);
while (len > 0)
{
requestStream.Write(buff, 0, buffLength);
len = stream.Read(buff, 0, buffLength);
} stream.Close();
requestStream.Close(); stream.Dispose();
requestStream.Dispose(); }
ServerU安装和配置教程
参考： http://www.cnblogs.com/wolf-sun/p/3749683.html
总结
上传方法我直接使用HttpPostedFile测试通过，并且发布到IIS上测试通过，也可以将文件上传到web站点下再上传到ftp服务器中。Ftp服务器使用ServerU搭建。再次在测试过程中感谢Wolfy对问题的指导和回复。
再看ftp上传文件的更多相关文章
- 通过cmd完成FTP上传文件操作
一直使用 FileZilla 这个工具进行相关的 FTP 操作,而在某一次版本升级之后,发现不太好用了,连接老是掉,再后来完全连接不上去. 改用了一段时间的 Web 版的 FTP 工具,后来那个页面也 ...
- FTP上传文件到服务器
一.初始化上传控件. 1.我们这里用dropzone.js作为上传控件,下载地址http://www.dropzonejs.com/ 2.这里我们使用一个div元素作为dropzone载体. < ...
- .net FTP上传文件
FTP上传文件代码实现: private void UploadFileByWebClient() { WebClient webClient = new WebClient(); webClient ...
- FTP上传文件提示550错误原因分析。
今天测试FTP上传文件功能,同样的代码从自己的Demo移到正式的代码中,不能实现功能,并报 Stream rs = ftp.GetRequestStream()提示远程服务器返回错误: (550) 文 ...
- FTP 上传文件
有时候需要通过FTP同步数据文件,除了比较稳定的IDE之外,我们程序员还可以根据实际的业务需求来开发具体的工具,具体的开发过程就不细说了,这里了解一下通过C#实现FTP上传文件到指定的地址. /// ...
- Java ftp 上传文件和下载文件
今天同事问我一个ftp 上传文件和下载文件功能应该怎么做,当时有点懵逼,毕竟我也是第一次,然后装了个逼,在网上找了一段代码发给同事,叫他调试一下.结果悲剧了,运行不通过.(装逼失败) 我找的文章链接: ...
- C# FTP上传文件至服务器代码
C# FTP上传文件至服务器代码 /// <summary> /// 上传文件 /// </summary> /// <param name="fileinfo ...
- Java ftp上传文件方法效率对比
Java ftp上传文件方法效率对比 一.功能简介: txt文件采用ftp方式从windows传输到Linux系统: 二.ftp实现方法 (1)方法一:采用二进制流传输,设置缓冲区,速度快,50M的t ...
- Ftp上传文件
package net.util.common; import java.io.File; import java.io.FileInputStream; import java.io.FileOut ...
随机推荐
- 解决WARN: Timeout/setRollbackOnly of ACTIVE coordinator !的问题
该问题是CoordinatorImp上面的一个定时器造成的,一个活动的session如果在一定的时间内没有执行完毕就会rollback,就算没有sql执行也会不断的进行. 可以参考该链接:https: ...
- 深入理解OAuth2.0协议
1. 引言 如果你开车去酒店赴宴,你经常会苦于找不到停车位而耽误很多时间.是否有好办法可以避免这个问题呢?有的,听说有一些豪车的车主就不担心这个问题.豪车一般配备两种钥匙:主钥匙和泊车钥匙.当你到酒店 ...
- checkbox选中状态不被改变
让它的状态只能看不能改变,加上onclick="return false;". 也可以disabled="true";但是这个颜色变淡了; <input ...
- Apache服务器在80端口配置多域名虚拟主机的方法
我们在配置一台服务器的时候,如果只运行一个站点,往往过于浪费资源.Nginx和Apache都可以通过配置虚拟主机实现多站点.配置虚拟主机的方式主要有两种,一种是多个不同端口对应的多个虚拟主机站点,一种 ...
- 拯救无法启动的虚拟机文件.vmdk中的数据
FROM: http://blog.csdn.net/npy_lp/article/details/7686583 从事Linux开发的软件工程师几乎都使用过虚拟机软件,如VMware worksta ...
- JSP里面ajax不能返回后台传出的值得问题。。。。
问题代码: <%@ page contentType="text/html;charset=gb2312"%><html> <head> < ...
- 一步步学习javascript基础篇（6）：函数表达式之【闭包】
回顾前面介绍过的三种定义函数方式 1. function sum (num1, num2) { return num1 + num2; } //函数声明语法定义 2. var sum = funct ...
- NodeJs 开发微信公众号（一）准备工作
前言 大概是一个月前,自己用业余时间做了一个微信公众号.微信开发,尤其是对后台不熟悉的人来说显得尤其困难.首先要克服的是后台语言(nodejs)的一些不熟悉困难,其次,也是最大的一点困难是在跟微信交互 ...
- 学习Cassandra的开源电子书（中英文版）
学习Cassandra的开源电子书(中英文版)发布啦:http://teddymaef.github.io/learncassandra/ 之前发布了英文版,现在包含中文版了. 学习Cassandra ...
- [大数据之Spark]——快速入门
本篇文档是介绍如何快速使用spark,首先将会介绍下spark在shell中的交互api,然后展示下如何使用java,scala,python等语言编写应用.可以查看编程指南了解更多的内容. 为了良好 ...