在本地主機上運行的ftp文件下載但在服務器上無法運行

Question

string HostName = System.Configuration.ConfigurationSettings.AppSettings["HostName"]; 
string strUser = System.Configuration.ConfigurationSettings.AppSettings["BasicAuthenticationUser"]; 
string strPWD = System.Configuration.ConfigurationSettings.AppSettings["BasicAuthenticationPWD"]; 

strFile = "9788191073072.zip"; 

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(HostName + strFile); 
request.Method = WebRequestMethods.Ftp.DownloadFile; 
request.Credentials = new NetworkCredential(strUser, strPWD); 
request.UsePassive = true; 
request.UseBinary = true; 
request.KeepAlive = false; 

FtpWebResponse response = (FtpWebResponse)request.GetResponse(); 
Stream responseStream = response.GetResponseStream(); 

Response.AddHeader("content-disposition", "attachment;filename=" + strFile); 

byte[] buffer = new byte[2 * 1024]; 
int read; 

while ((read = responseStream.Read(buffer, 0, buffer.Length)) > 0) { Response.OutputStream.Write(buffer, 0, read); } 

responseStream.Close(); 
response.Close(); 

Answer 1

沒有任何真正的細節可以繼續，這可能必須在生產服務器上設置MIME類型。

這也可能是由於您和服務器之間可能存在的透明代理篩選策略。

再一次，你應該通過Fiddler做一個細粒度的跟蹤，看看服務器真正返回什麼，以及請求是否成功完成。

假設這是一個IIS服務器，服務器事件日誌中的外觀還可以告訴您應用程序池是否崩潰並重新啓動，看起來好像沒有錯誤，但響應不正確。

Answer 2

string HostName = System.Configuration.ConfigurationSettings.AppSettings["HostName"]; 
string strUser = System.Configuration.ConfigurationSettings.AppSettings["BasicAuthenticationUser"]; 
string strPWD = System.Configuration.ConfigurationSettings.AppSettings["BasicAuthenticationPWD"]; 

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(HostName + strFile); 
request.Method = WebRequestMethods.Ftp.DownloadFile; 
request.Credentials = new NetworkCredential(strUser, strPWD); 
request.UsePassive = true; 
request.UseBinary = true; 
request.KeepAlive = false; 

FtpWebResponse response = (FtpWebResponse)request.GetResponse(); 
Stream responseStream = response.GetResponseStream(); 

Response.ContentType = "application/octet-stream"; 
Response.AddHeader("content-disposition", "attachment;filename=" + _AudiobookName + ".zip"); 
int read; 
byte[] buffer = new byte[2 * 1024]; 
while ((read = responseStream.Read(buffer, 0, buffer.Length)) > 0) 
{ 
    Response.OutputStream.Write(buffer, 0, read); 
    Response.Flush(); 
} 
responseStream.Close(); 
response.Close(); 
Response.Flush(); 
Response.End();