JSP文件上传。从FTP到SFTP的转换

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我有一个包含上传文件链接的JSP页面。最初，文件传输是使用FTP进行的。服务器似乎只使用FTP从客户端传输文件。我需要现在更改代码以支持SFTP。与服务器在客户端计算机上启动FTP会话一样，是否也可以使用SFTP？这里是客户端代码：JSP文件上传。从FTP到SFTP的转换

FTPClient client = new FTPClient();       
FTPClient clientUser = new FTPClient(); //From ftp location (user saves file here) 
try {       //Location where user chooses file from 
    eas_user_import_ip_address_val = resovleJNDIResource.resolveJNDIString(eas_user_import_ip_address_tx); 
    eas_user_import_id_val = resovleJNDIResource.resolveJNDIString(eas_user_import_id_tx); 
    eas_user_import_pwd_val = resovleJNDIResource.resolveJNDIString(eas_user_import_pwd_tx); 
    eas_user_file_prefix_val= resovleJNDIResource.resolveJNDIString(eas_user_file_prefix_tx); 
    eas_user_file_prefix_val= eas_user_file_prefix_val.trim(); 


clientUser.connect(eas_user_import_ip_address_val); 
int replyUser = clientUser.getReplyCode(); 

if(!FTPReply.isPositiveCompletion(replyUser)) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error connecting to:" + eas_user_import_ip_address_val + " reply code:" + replyUser); 
    clientUser.disconnect(); 
    return false; 
} 

boolean loginUser = clientUser.login(eas_user_import_id_val, eas_user_import_pwd_val); 

if (!loginUser) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error logging in to:" + eas_user_import_id_val); 
    return false; 
} 

//Location where file gets copied to. 
eas_import_ip_address_val  = resovleJNDIResource.resolveJNDIString(eas_import_ip_address_tx); 
eas_import_id_val           = resovleJNDIResource.resolveJNDIString(eas_import_id_tx); 
eas_import_pwd_val          = resovleJNDIResource.resolveJNDIString(eas_import_pwd_tx); 

eas_part_file_prefix_val    = resovleJNDIResource.resolveJNDIString(eas_part_file_prefix_tx); 
eas_p2p_file_prefix_val    = resovleJNDIResource.resolveJNDIString(eas_p2p_file_prefix_tx); 

client.connect(eas_import_ip_address_val); 
int reply = client.getReplyCode(); 

if(!FTPReply.isPositiveCompletion(reply)) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error connecting to:" + eas_import_ip_address_val + " reply code:" + reply); 
    client.disconnect(); 
    return false; 
} 

boolean login = client.login(eas_import_id_val, eas_import_pwd_val); 

if (!login) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error loging in to:" + eas_import_id_val); 
    return false; 
} 
//Loged in to From and To locations. Now transfer file 
clientUser.setFileType(FTP.ASCII_FILE_TYPE); 
clientUser.enterLocalActiveMode(); //from example 

String originalFileName = fileName; 

fileName = eas_user_file_prefix_val+fileName; 

InputStream ip = clientUser.retrieveFileStream(fileName); 



String issueIdStr = StringHelper.prepad(issueId + "", 10, '0'); 

String headerRecord = "HEADER     " + adjPlatformCd + issueIdStr + batchId + " Original file : " + fileName; 
String trailerRecord = "TRAILER     " + adjPlatformCd + issueIdStr + batchId + " Server file : " + eas_file_prefix_val + dt_tm_siz + ".csv"; 

client.setFileType(FTP.ASCII_FILE_TYPE); 
//First store file as ".tmp". First header then data followed by trailer 
boolean retValue = client.storeFile(eas_file_prefix_val + dt_tm_siz + ".tmp", new ByteArrayInputStream(headerRecord.getBytes())); 
if (!retValue) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error creating:" + eas_file_prefix_val + dt_tm_siz + ".tmp"); 
    return false; 
} 

retValue = client.appendFile(eas_file_prefix_val + dt_tm_siz + ".tmp", ip); 
if (!retValue) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error append 1:" + eas_file_prefix_val + dt_tm_siz + ".tmp"); 
    return false; 
} 
ip.close(); 

retValue = client.appendFile(eas_file_prefix_val + dt_tm_siz + ".tmp", new ByteArrayInputStream(trailerRecord.getBytes())); 
if (!retValue) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error append 2:" + eas_file_prefix_val + dt_tm_siz + ".tmp"); 
    return false; 
} 

boolean commandOK=clientUser.completePendingCommand(); // this command lets next few ftp commands proces successfully 

// place user file in PROCESSED folder. Append issue id, batch #, date and time if file length is < 230 
String renamedUserFileName = eas_user_file_prefix_val+ "PROCESSED\\" + originalFileName.substring(0, originalFileName.lastIndexOf(".csv")) + "_" + issueId + "_" + batchId.trim() + dt_tm_siz + ".csv"; 

String someSiteCommand = "RNFR " + fileName; //rename from 

reply = clientUser.sendCommand(someSiteCommand); 
someSiteCommand = "RNTO " + renamedUserFileName; //rename to 

reply = clientUser.sendCommand(someSiteCommand); 

if(!FTPReply.isPositiveCompletion(reply)) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error renaming:" + fileName + " reply code:" + reply); 
    return false; 
} 

someSiteCommand = "RNFR " + eas_file_prefix_val + dt_tm_siz + ".tmp"; //rename from 

reply = client.sendCommand(someSiteCommand); 
someSiteCommand = "RNTO " + eas_file_prefix_val + dt_tm_siz + ".csv"; //rename to 

reply = client.sendCommand(someSiteCommand); 
if(!FTPReply.isPositiveCompletion(reply)) { 
    ENTADJRuntime.getInstance().logError("FTPService", "Error renaming:" + eas_file_prefix_val + dt_tm_siz + ".tmp" + " reply code:" + reply); 
    return false; 
} 
client.logout(); 
clientUser.logout();

来源

2015-11-02 learner420

启动一样在客户机上的FTP会话的服务器，有可能是SFTP呢？这里是客户端代码：

SFTP是一个完全不同的协议FTP，你可能不能再使用任何FTP特定的代码。这可能是因为你的意思是FTPS，而FTP是通过TLS扩展的。如果支持这个取决于服务器的设置，那仅仅改变客户端代码是不够的。只要服务器支持它，您可以使用它与Java，请参阅例如Secure FTP with org.apache.commons.net.ftp.FTPClient

来源

2015-11-02 21:04:46

不，我的意思是SFTP（通过SSH的FTP）。实际上我托管我的应用程序的http服务器不支持SFTP。但还有另一个SFTP服务器，我想要将这个文件上传到。为此我需要在服务器上做什么样的设置。 – learner420

@ learner420：HTTP服务器不支持SSH，因为HTTP和SSH是不同的协议。对于SFTP/SSH，您需要安装和设置SSH服务器。你有什么选择取决于你的（未知）服务器操作系统。也许只是为您的平台搜索SSH/SFTP服务器。 –

嗯，我有一个SFTP服务器，我想上传这个文件，它不同于HTTP服务器。我正在使用HTTP服务器来托管该jsp，从中我想要获取该文件的所有详细信息，然后启动到该（SFTP）服务器的SFTP传输。 – learner420

JSP文件上传。从FTP到SFTP的转换

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