使用Apache commons库，我试图在使用FTP over SSL连接的远程服务器上放置文件或列出目录内容。
public void outboundProcessFile(String inputFilePath, String outputFilePath) throws Exception {
File inFile = new java.io.File(inputFilePath);
if (args == null){
System.exit(-1) ;
}
String args[] = this.args;
boolean storeFile = false, binaryTransfer = false, error = false, listFiles = false, listNames = false, hidden = false;
boolean mlst = false, mlsd = false;
boolean lenient = true;
boolean feat = true;;
long keepAliveTimeout = 300000;
int controlKeepAliveReplyTimeout = 300000;
int minParams = 5;
String doCommand = "PROT P";//null
String server = null, password = null, username = null, remote = null,local = null;
int port = 990;//990
int base = 0;
for (base = 0; base < args.length; base++) {
if (args[base].equals("-s")) {
storeFile = true;
} else if (args[base].equals("-b")) {
binaryTransfer = true;
} else if (args[base].equals("-c")) {
doCommand = args[++base];
minParams = 3;
} else if (args[base].equals("-d")) {
mlsd = true;
minParams = 3;
} else if (args[base].equals("-h")) {
hidden = true;
} else if (args[base].equals("-k")) {
keepAliveTimeout = Long.parseLong(args[++base]);
} else if (args[base].equals("-l")) {
listFiles = true;
minParams = 3;
} else if (args[base].equals("-L")) {
lenient = true;
} else if (args[base].equals("-n")) {
listNames = true;
minParams = 3;
} else if (args[base].equals("-t")) {
mlst = true;
minParams = 3;
} else if (args[base].equals("-w")) {
controlKeepAliveReplyTimeout = Integer.parseInt(args[++base]);
} else if (args[base].equals("-sh")) {
server = args[++base];
String parts[] = server.split(":");
if (parts.length == 2){
server=parts[0];
port=Integer.parseInt(parts[1]);
}
} else if (args[base].equals("-u")) {
username = args[++base];
} else if (args[base].equals("-pw")) {
password = args[++base];
} else if (args[base].equals("-rf")) {
remote = null;
if (args.length - base > 0) {
remote = args[++base];
}
} else if (args[base].equals("-lf")) {
local = null;
if (args.length - base > 0) {
local = args[++base];
}
} else {
break;
}
}
FTPClient ftp;
FTPSClient ftps = new FTPSClient(true);
ftp = ftps;
ftps.setTrustManager(TrustManagerUtils.getAcceptAllTrustManager());
ftp.setCopyStreamListener(createListener());
if (keepAliveTimeout >= 0) {
ftp.setControlKeepAliveTimeout(keepAliveTimeout);
}
if (controlKeepAliveReplyTimeout >= 0) {
ftp.setControlKeepAliveReplyTimeout(controlKeepAliveReplyTimeout);
}
ftp.setListHiddenFiles(hidden);
// suppress login details
ftp.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
try {
int reply;
if (port > 0) {
ftp.connect(server, port);
} else {
ftp.connect(server);
}
System.out.println("Connected to " + server + " on "+ftp.getRemotePort());
// After connection attempt, you should check the reply code to verify
// success.
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
}
catch (IOException e) {
if (ftp.isConnected()) {
try {
ftp.disconnect();
}
catch (IOException f)
{
// do nothing
}
}
System.err.println("Could not connect to server.");
e.printStackTrace();
System.exit(1);
}
__main:
try
{
String userid = null;//
if (!ftp.login(username, password)) {
ftp.logout();
error = true;
break __main;
}
System.out.println("Remote system is " + ftp.getSystemType());
if (feat) {
// boolean feature check
if (remote != null) { // See if the command is present
if (ftp.hasFeature(remote)) {
System.out.println("Has feature: "+remote);
} else {
if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
// System.out.println("FEAT "+remote+" was not detected");
} else {
System.out.println("Command failed: "+ftp.getReplyString());
}
}
// Strings feature check
String []features = ftp.featureValues(remote);
if (features != null) {
for(String f : features) {
System.out.println("FEAT "+remote+"="+f+".");
}
} else {
if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
// System.out.println("FEAT "+remote+" is not present");
} else {
System.out.println("Command failed: "+ftp.getReplyString());
}
}
} else {
if (ftp.features()) {
// Command listener has already printed the output
} else {
System.out.println("Failed: "+ftp.getReplyString());
}
}
}
ftp.doCommandAsStrings("PBSZ", "0");
ftp.doCommandAsStrings("PROT", "P");
if (binaryTransfer)
ftp.setFileType(FTP.ASCII_FILE_TYPE);//.BINARY_FILE_TYPE);
// Use passive mode as default because most of us are
// behind firewalls these days.
ftp.enterLocalPassiveMode();
ftp.doCommand("MLSD", "");
if (storeFile) {
InputStream input;
input = new FileInputStream(local);
ftp.changeWorkingDirectory(remote);
ftp.storeFile(local.substring(local.lastIndexOf("/")+1), input);
input.close();
} else if (listFiles) {
if (lenient) {
FTPClientConfig config = new FTPClientConfig();
config.setLenientFutureDates(true);
ftp.configure(config );
}
for (FTPFile f : ftp.listFiles(remote)) {
System.out.println(f.getRawListing());
System.out.println(f.toFormattedString());
}
} else if (mlsd) {
for (FTPFile f : ftp.mlistDir(remote)) {
System.out.println(f.getRawListing());
System.out.println(f.toFormattedString());
}
} else if (mlst) {
FTPFile f = ftp.mlistFile(remote);
if (f != null){
System.out.println(f.toFormattedString());
}
} else if (listNames) {
for (String s : ftp.listNames(remote)) {
System.out.println(s);
}
} else {
OutputStream output;
output = new FileOutputStream(local);
ftp.changeWorkingDirectory(remote);
ftp.retrieveFile(local.substring(local.lastIndexOf("/")), output);
output.close();
}
ftp.noop(); // check that control connection is working OK
ftp.logout();
} catch (FTPConnectionClosedException e) {
error = true;
System.err.println("Server closed connection.");
e.printStackTrace();
} catch (IOException e) {
error = true;
e.printStackTrace();
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException f) {
// do nothing
}
}
}
System.exit(error? -1:0);
}
我运行它并获取控制台输出以供列出...
220 Serv-U FTP Server v6.4 for WinSock ready...
Connected to ftps.server.com on 990
USER *******
331 User name okay, need password.
PASS *******
230 User logged in, proceed.
SYST
215 UNIX Type: L8
Remote system is UNIX Type: L8
FEAT
211-Extension supported
AUTH TLS
SSCN
PBSZ
PROT
CCC
CLNT
MDTM
MDTM YYYYMMDDHHMMSS[+-TZ];filename
SIZE
SITE PSWD;EXEC;SET;INDEX;ZONE;CHMOD;MSG
REST STREAM
XCRC filename;start;end
MODE Z
MLST Type*;Size*;Create;Modify*;Win32.ea*;
211 End
PBSZ 0
200 PBSZ command OK. Protection buffer size set to 0.
PROT P
200 PROT command OK. Using private data connection.
TYPE A
200 Type set to A.
MLSD
150 Opening BINARY mode data connection for MLSD.
PASV
227 Entering Passive Mode (204,124,192,88,195,82)
LIST Directory/toIC/
425 Try later, data connection in use.
NOOP
150 Opening BINARY mode data connection for MLSD.
QUIT
200 Command okay.
如果我没有MLSD并尝试上传文件，我会看到一个0字节文件，文件名放在服务器上（通过FileZilla），我将收到421错误。想法？
答案 0 :(得分：0)
我不得不删除MLSD命令。我现在可以列出，检索和存储。