java ftp 上传文件后，文件名称被改变

[luminance]

在网上找的代码，用的是 commons-io-1.4，上传文件至ftp后，文件内容正确，但是，文件名称从'test.txt'变成了‘pureftpd.5515257a.51.0000’，请帮助分析一下，到底是什么原因，十分感谢

public static boolean upload(String url, int port, String username, String password, String ftpPath, String filename) {
		FTPClient ftpClient = new FTPClient();
		InputStream fis = null;
		boolean flag = false;
		try {
			ftpClient.connect(url);
			boolean reflag = ftpClient.login(username, password);
			System.out.println("reflag: " + reflag);
			ftpClient.enterLocalPassiveMode();
			File srcFile = new File(filename);

			fis = new FileInputStream(srcFile);

			// 设置文件类型（二进制）
			ftpClient.setFileType(FTPClient.ASCII_FILE_TYPE);

			// String name = srcFile.getName();
			flag = ftpClient.storeUniqueFile(ftpPath, fis); //.storeFile(ftpPath, fis);
		} catch (IOException e) {
			e.printStackTrace();
			flag = false;
			throw new RuntimeException("FTP客户端出错！", e);
		} finally {
			IOUtils.closeQuietly(fis);
			try {
				ftpClient.disconnect();
			} catch (IOException e) {
				e.printStackTrace();
				throw new RuntimeException("关闭FTP连接发生异常！", e);
			}
		}
		return flag;
	}
public static void main(String[] str) {
		TestFTp test = new TestFTp();
		test.testFtpUpload();
	}

	public void testFtpUpload() {
		String url = "333.333.33.33";
		int port = 21;
		String username = "**********";
		String password = "*******";

		// 上传到ftp服务器路径
		String ftpPath = "/ttttttttt/";

		// 本地需上传文件路径
		String filename = "C:/test.txt";
		boolean flag = FtpUtil.upload(url, port, username, password, ftpPath, filename);
		System.out.println(flag);
	}