场景：

1.获取ftp列表

2.获取文件

实现：

private static void list() {
	FTPClient ftpClient = new FTPClient();

	try {
		ftpClient.connect("ftp.someabcd.com", 21);
		ftpClient.setControlEncoding("UTF-8");
		ftpClient.login("anonymous", "anonymous@ftp.someabcd.com");
		ftpClient.enterLocalPassiveMode();
		ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);

		FTPFile[] ftpFiles = ftpClient.listFiles("/");
		for (FTPFile ftpFile : ftpFiles) {
			System.out.println(ftpFile.getName());
		}
	} catch (Exception e) {
		e.printStackTrace();
	} finally {
		try {
			ftpClient.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
	}
}

?get文件

private static void get() {
	FTPClient ftpClient = new FTPClient();
	OutputStream is =null;
	try {
		ftpClient.connect("ftp.someabcd.com", 21);
		ftpClient.setControlEncoding("UTF-8");
		ftpClient.login("anonymous", "anonymous@ftp.someabcd.com");
		ftpClient.enterLocalPassiveMode();
		ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
		File localFile = new File("G:\\a.txt");
		is = new FileOutputStream(localFile);
		ftpClient.retrieveFile("/temp/128.139.txt", is);
	} catch (Exception e) {
		e.printStackTrace();
	} finally {
		IOUtils.closeQuietly(is);
		try {
			ftpClient.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
	}
}

?其他常用操作：

ftpClient.dele(pathname);
ftpClient.deleteFile(pathname);
ftpClient.storeFile(remote, local);

?