/**
     * 初始化ftp伺服器
     */
    private FTPClient initFtpClient() throws Exception {
        String host = FamousClassRoomPropertiesConfig.getZjeduFileUploadHost();
        int port = FamousClassRoomPropertiesConfig.getZjeduFileUploadPort();
        String userName = FamousClassRoomPropertiesConfig.getZjeduFileUploadUsername();
        String passworld = FamousClassRoomPropertiesConfig.getZjeduFileUploadPassword();
        FTPClient ftpClient = new FTPClient();
        ftpClient.setControlEncoding("utf-8");
        //連線ftp伺服器
        ftpClient.connect(host, port);
        //登入ftp伺服器
        ftpClient.login(userName, passworld);
        ftpClient.enterLocalPassiveMode();
        ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
        if (!FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
            ftpClient.disconnect();
            throw new Exception("連線伺服器失敗");
        }
        return ftpClient;
    }
 

檔案上傳：

/**
     * 
     * @param folder 上傳的資料夾
     * @param fileName 檔名稱
     * @param inputStream
     * @return
     * @throws Exception
     */
    public String fileUpload(String folder, String fileName, InputStream inputStream) throws Exception {
        FTPClient ftpClient = null;
        try {
            ftpClient = initFtpClient();
            Long time = System.currentTimeMillis();
            ftpClient.changeWorkingDirectory(folder);
            ftpClient.storeFile(fileName, inputStream);
            LOGGER.warn("檔案上傳時間：" + (System.currentTimeMillis() - time));
            return ZJEDU_PATH + folder + "/" + fileName;
        } catch (Exception e) {
            throw new Exception("檔案上傳失敗", e);
        } finally {
            if (inputStream != null) {
                inputStream.close();
            }
            if (ftpClient != null) {
                ftpClient.disconnect();
            }
        }
    }
 

刪除檔案：

/**
     * ftp刪除檔案
     * @param folder 資料夾名稱
     * @param fileNames 檔名列表
     * @return
     * @throws Exception
     */
    public boolean deleteZjeduFile(String folder, List<String> fileNames) throws Exception{
        FTPClient ftpClient = null;
        boolean flag = false;
        try{
            ftpClient = initFtpClient();
            ftpClient.changeWorkingDirectory(folder);
            for(String fileName : fileNames) {
                flag = ftpClient.deleteFile(fileName);
            }
            return flag;
        }catch (Exception e){
            throw e;
        }finally {
            if (ftpClient != null) {
                ftpClient.disconnect();
            }
        }
    }