FTP文件下載

public static void ftpDownFile() {
		String id = ""; //FTP的ID
		int port ="";  // FTP的商品
		String name = "";  // 用戶名
		String password = ""; //密碼
		String directory = "";//FTP下載文件路徑
		String fileName = "";//下載後文件保存地址
		try {
			FtpClient fc = new FtpClient(id, port);
			fc.login(name, password);
			int ch;
			File fi = new File(fileName);
			RandomAccessFile getFile = new RandomAccessFile(fi, "rw");
			getFile.seek(0);
			TelnetInputStream fget = fc.get(directory);
			DataInputStream puts = new DataInputStream(fget);
			while ((ch = puts.read()) >= 0) {
				getFile.write(ch);
			}
			fget.close();
			getFile.close();
			fc.closeServer();
		} catch (IOException ex) {
			ex.printStackTrace();
		}
	}