Hãy để tôi viết một ví dụ cơ bản cho bạn, bằng cách sử dụng rất hữu ích Apache FtpServer:
FtpServerFactory serverFactory = new FtpServerFactory();
ListenerFactory factory = new ListenerFactory();
factory.setPort(1234);// set the port of the listener (choose your desired port, not 1234)
serverFactory.addListener("default", factory.createListener());
PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();
userManagerFactory.setFile(new File("/home/blablah/myusers.properties"));//choose any. We're telling the FTP-server where to read it's user list
userManagerFactory.setPasswordEncryptor(new PasswordEncryptor()
{//We store clear-text passwords in this example
@Override
public String encrypt(String password) {
return password;
}
@Override
public boolean matches(String passwordToCheck, String storedPassword) {
return passwordToCheck.equals(storedPassword);
}
});
//Let's add a user, since our myusers.properties files is empty on our first test run
BaseUser user = new BaseUser();
user.setName("test");
user.setPassword("test");
user.setHomeDirectory("/home/blablah");
List<Authority> authorities = new ArrayList<Authority>();
authorities.add(new WritePermission());
user.setAuthorities(authorities);
UserManager um = userManagerFactory.createUserManager();
try
{
um.save(user);//Save the user to the user list on the filesystem
}
catch (FtpException e1)
{
//Deal with exception as you need
}
serverFactory.setUserManager(um);
Map<String, Ftplet> m = new HashMap<String, Ftplet>();
m.put("miaFtplet", new Ftplet()
{
@Override
public void init(FtpletContext ftpletContext) throws FtpException {
//System.out.println("init");
//System.out.println("Thread #" + Thread.currentThread().getId());
}
@Override
public void destroy() {
//System.out.println("destroy");
//System.out.println("Thread #" + Thread.currentThread().getId());
}
@Override
public FtpletResult beforeCommand(FtpSession session, FtpRequest request) throws FtpException, IOException
{
//System.out.println("beforeCommand " + session.getUserArgument() + " : " + session.toString() + " | " + request.getArgument() + " : " + request.getCommand() + " : " + request.getRequestLine());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
@Override
public FtpletResult afterCommand(FtpSession session, FtpRequest request, FtpReply reply) throws FtpException, IOException
{
//System.out.println("afterCommand " + session.getUserArgument() + " : " + session.toString() + " | " + request.getArgument() + " : " + request.getCommand() + " : " + request.getRequestLine() + " | " + reply.getMessage() + " : " + reply.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
@Override
public FtpletResult onConnect(FtpSession session) throws FtpException, IOException
{
//System.out.println("onConnect " + session.getUserArgument() + " : " + session.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
@Override
public FtpletResult onDisconnect(FtpSession session) throws FtpException, IOException
{
//System.out.println("onDisconnect " + session.getUserArgument() + " : " + session.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
});
serverFactory.setFtplets(m);
//Map<String, Ftplet> mappa = serverFactory.getFtplets();
//System.out.println(mappa.size());
//System.out.println("Thread #" + Thread.currentThread().getId());
//System.out.println(mappa.toString());
FtpServer server = serverFactory.createServer();
try
{
server.start();//Your FTP server starts listening for incoming FTP-connections, using the configuration options previously set
}
catch (FtpException ex)
{
//Deal with exception as you need
}
Lưu ý rằng, phía máy chủ, bạn không phải xử lý thủ công các kết nối, thông tin đăng nhập, v.v.: Ftplet thực hiện điều đó cho bạn.
Bạn có thể, tuy nhiên, thêm tuỳ chỉnh của bạn trước [hoặc bưu điện] Xử lý bên trong phương pháp ghi đè của lớp Ftplet bên trong vô danh của bạn (khi bạn khởi tạo nó với new Ftplet(){ ... }
.
Nguồn
2012-01-23 10:21:44
Liệu các mã tôi đã viết tác phẩm cho bạn? –