需要C＃代码才能使用代理从FTP服务器下载文件

本文介绍了需要C＃代码才能使用代理从FTP服务器下载文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我正在使用beow C＃代码从FTP下载文件。生成的文件包含错误文本。请让我知道如何解决错误。 错误消息 ： < / H1 > < PRE > 200 类型 设置 我 。 200 PORT命令成功 。 550 / ftp 。 txt ： 没有这样的 文件 或 目录 。 < / PRE > < / BODY > < / HTML > string file = " ftp.txt" ; string fileName = @ " D：\ Test \" +文件; FtpWebRequest downloadRequest =（FtpWebRequest）FtpWebRequest.Create（ ftp：// ServerName +" / " + file）; downloadRequest.Method = WebRequestMethods.Ftp.DownloadFile; //downloadRequest.Credentials = new NetworkCredential（" UserName "，" 密码 "）; WebProxy myProxy = new WebProxy（）; Uri newUri = new Uri（ http：// ProxyName：ProxyPortNo ）; //将newUri对象与'myProxy'对象相关联，以便可以设置新的myProxy设置。 myProxy.Address = newUri; //创建NetworkCredential对象并将其与请求对象的 // Proxy属性相关联。 myProxy.Credentials = new NetworkCredential（" USerName "，" 密码 "，" 域 " ）; downloadRequest.Proxy = myProxy; FtpWebResponse response =（FtpWebResponse）downloadRequest.GetResponse（）; 流responseStream = response.GetResponseStream（）; StreamReader reader = new StreamReader（responseStream）; FileInfo downloadFile = new FileInfo（fileName）; FileStream outputStream = new FileStream（fileName，FileMode.Append）; 流ftpStream = response.GetResponseStream（）; long cl = response.ContentLength; int bufferSize = 4096; int readCount; byte [] buffer = new byte [bufferSize]; readCount = ftpStream.Read（buffer，0，bufferSize）; MessageBox.Show（" 已连接 ： 正在下载 档案 " ）; while（readCount> 0） { outputStream.Write（buffer，0，readCount）; readCount = ftpStream.Read（buffer，0，bufferSize）; //Console.WriteLine（readCount.ToString（））; } ftpStream.Close（）; outputStream.Close（）; response.Close（）; MessageBox.Show（" 正在下载 完整 "）; 谢谢， Saikat 解决方案 我正在使用beow C＃代码从FTP下载文件。生成的文件包含错误文本。 错误消息：< / H1> < PRE> 200类型设置为I. 200 PORT命令成功。 550 /ftp.txt：没有这样的文件或目录。 < / PRE> < / BODY> < / HTML> string file =" ftp.txt" ;; string fileName = @" D：\Test \" +文件; FtpWebRequest downloadRequest =（FtpWebRequest）FtpWebRequest.Create（ ftp：// ServerName +" /" + file）; downloadRequest.Method = WebRequestMethods.Ftp.DownloadFile; //downloadRequest.Credentials = new NetworkCredential（" UserName"，" Password"）; WebProxy myProxy = new WebProxy（）; Uri newUri = new Uri（ http：// ProxyName：ProxyPortNo ）; //将newUri对象与'myProxy'对象相关联，以便可以设置新的myProxy设置。 myProxy.Address = newUri; //创建NetworkCredential对象并将其与请求对象的 // Proxy属性相关联。 myProxy.Credentials = new NetworkCredential（" USerName"，" Password"，" Domain"）; downloadRequest.Proxy = myProxy; FtpWebResponse response =（FtpWebResponse）downloadRequest.GetResponse（）; 流responseStream = response.GetResponseStream（）; StreamReader reader = new StreamReader（responseStream）; FileInfo downloadFile = new FileInfo（fileName）; FileStream outputStream = new FileStream（fileName，FileMode.Append）; 流ftpStream = response.GetResponseStream（）; long cl = response.ContentLength; int bufferSize = 4096; int readCount; byte [] buffer = new byte [bufferSize]; readCount = ftpStream.Read（buffer，0，bufferSize）; MessageBox.Show（" Connected：Downloading File"）; while（readCount> 0） { outputStream.Write（buffer，0，readCount）; readCount = ftpStream.Read（buffer，0，bufferSize）; //Console.WriteLine（readCount.ToString（））; } ftpStream.Close（）; outputStream.Close（）; response.Close（）; MessageBox.Show（" Downloading Complete"）; 谢谢， Saikat Hi,I am using the beow C# code for downloading the files from FTP. The file gets generated with error text which says. Please let me know how to resolve the error.error message : </H1><PRE>200 Type set to I.200 PORT Command successful.550 /ftp.txt: No such file or directory. </PRE></BODY></HTML> string file = "ftp.txt"; string fileName = @"D:\Test\" + file; FtpWebRequest downloadRequest = (FtpWebRequest)FtpWebRequest.Create(ftp://ServerName + "/" + file); downloadRequest.Method = WebRequestMethods.Ftp.DownloadFile; //downloadRequest.Credentials = new NetworkCredential("UserName", "Password"); WebProxy myProxy = new WebProxy(); Uri newUri = new Uri(http://ProxyName:ProxyPortNo); // Associate the newUri object to 'myProxy' object so that new myProxy settings can be set. myProxy.Address = newUri; // Create a NetworkCredential object and associate it with the // Proxy property of request object. myProxy.Credentials = new NetworkCredential("USerName", "Password","Domain"); downloadRequest.Proxy = myProxy; FtpWebResponse response = (FtpWebResponse)downloadRequest.GetResponse(); Stream responseStream = response.GetResponseStream(); StreamReader reader = new StreamReader(responseStream); FileInfo downloadFile = new FileInfo(fileName); FileStream outputStream = new FileStream(fileName, FileMode.Append); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 4096; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); MessageBox.Show("Connected: Downloading File"); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); //Console.WriteLine(readCount.ToString()); } ftpStream.Close(); outputStream.Close(); response.Close(); MessageBox.Show("Downloading Complete");Thanks,Saikat 解决方案 Hi,I am using the beow C# code for downloading the files from FTP. The file gets generated with error text which says.error message : </H1><PRE>200 Type set to I.200 PORT Command successful.550 /ftp.txt: No such file or directory. </PRE></BODY></HTML> string file = "ftp.txt"; string fileName = @"D:\Test\" + file; FtpWebRequest downloadRequest = (FtpWebRequest)FtpWebRequest.Create(ftp://ServerName + "/" + file); downloadRequest.Method = WebRequestMethods.Ftp.DownloadFile; //downloadRequest.Credentials = new NetworkCredential("UserName", "Password"); WebProxy myProxy = new WebProxy(); Uri newUri = new Uri(http://ProxyName:ProxyPortNo); // Associate the newUri object to 'myProxy' object so that new myProxy settings can be set. myProxy.Address = newUri; // Create a NetworkCredential object and associate it with the // Proxy property of request object. myProxy.Credentials = new NetworkCredential("USerName", "Password","Domain"); downloadRequest.Proxy = myProxy; FtpWebResponse response = (FtpWebResponse)downloadRequest.GetResponse(); Stream responseStream = response.GetResponseStream(); StreamReader reader = new StreamReader(responseStream); FileInfo downloadFile = new FileInfo(fileName); FileStream outputStream = new FileStream(fileName, FileMode.Append); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 4096; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); MessageBox.Show("Connected: Downloading File"); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); //Console.WriteLine(readCount.ToString()); } ftpStream.Close(); outputStream.Close(); response.Close(); MessageBox.Show("Downloading Complete");Thanks,Saikat 这篇关于需要C＃代码才能使用代理从FTP服务器下载文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！