基于java+swing的资源下载工具(java+swing)

基于java+swing的资源下载工具(java+swing)

功能简介：
下载地址、保存位置、下载设置、下载进度

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

        List<FileFolder> folders = fileFolderService.getFileFolderByParentFolderId(folder.getFileFolderId());
        //删除当前文件夹的所有的文件
        List<MyFile> files = myFileService.getFilesByParentFolderId(folder.getFileFolderId());
        if (files.size()!=0){
            for (int i = 0; i < files.size(); i++) {
                Integer fileId = files.get(i).getMyFileId();
                boolean b = FtpUtil.deleteFile("/"+files.get(i).getMyFilePath(), files.get(i).getMyFileName() + files.get(i).getPostfix());
                if (b){
                    myFileService.deleteByFileId(fileId);
                    fileStoreService.subSize(folder.getFileStoreId(),Integer.valueOf(files.get(i).getSize()));
                }
            }
        }
        if (folders.size()!=0){
            for (int i = 0; i < folders.size(); i++) {
                deleteFolderF(folders.get(i));
            }
        }
        fileFolderService.deleteFileFolderById(folder.getFileFolderId());
    }
    /**
     * @Description 添加文件夹
     * @Author xw

                }
            }
            //设置上传文件的类型为二进制类型
            ftp.setFileType(FTP.BINARY_FILE_TYPE);
            //上传文件
            ftp.enterLocalPassiveMode();
            if (!ftp.storeFile(filename, input)) {
                return result;
            }
            input.close();
            ftp.logout();

    /**
     * @Description 从ftp服务器下载文件到指定输出流
     * @Author xw
     * @Date 22:30 2020/3/5
     * @Param [remotePath, fileName, outputStream]
     * @return boolean
     **/
    public static boolean downloadFile(String remotePath, String fileName, OutputStream outputStream) {
        boolean result = false;
        try {
            remotePath = new String(remotePath.getBytes("GBK"),"iso-8859-1");
            fileName = new String(fileName.getBytes("GBK"),"iso-8859-1");
            if (!initFtpClient()){
                return result;

        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return result;
    }
    /**
     * @Description 从ftp服务器下载文件到指定输出流
     * @Author xw
     * @Date 22:30 2020/3/5
     * @Param [remotePath, fileName, outputStream]
     * @return boolean
     **/
    public static boolean downloadFile(String remotePath, String fileName, OutputStream outputStream) {

                    FileOutputStream outputStream = new FileOutputStream(new File(localPath));
                    ftp.retrieveFile(remotePath+"/"+fileName,outputStream);
                    result = true;
                    outputStream.close();
                }
            }
            ftp.logout();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return result;
    }
    /**

            }
            ftp.logout();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return result;
    }
    

     * @Date 11:38 2020/2/6
     * @Param [remotePath, fileName]
     * @return void
     **/
    public static boolean deleteFolder( String remotePath){
        boolean flag = false;
        try {
            remotePath = new String(remotePath.getBytes("GBK"),"iso-8859-1");
            if (!initFtpClient()){
                return flag;
            };
            // 转移到FTP服务器目录
            ftp.changeWorkingDirectory(remotePath);
            ftp.enterLocalPassiveMode();
            FTPFile[] fs = ftp.listFiles();
            if (fs.length==0){
                ftp.removeDirectory(remotePath);
                flag = true;
            }

        }
        fileNameTemp = fileName;
        try {
            //解决下载文件时 中文文件名乱码问题
            boolean isMSIE = isMSBrowser(request);
            if (isMSIE) {
                //IE浏览器的乱码问题解决
                fileNameTemp = URLEncoder.encode(fileNameTemp, "UTF-8");
            } else {
                //万能乱码问题解决

     **/
    @GetMapping("/downloadFile")
    public String downloadFile(@RequestParam Integer fId){
        if (fileStoreService.getFileStoreByUserId(loginUser.getUserId()).getPermission() == 2){
            logger.error("用户没有下载文件的权限!下载失败...");
            return "redirect:/error401Page";
        }
        //获取文件信息
        MyFile myFile = myFileService.getFileByFileId(fId);
        String remotePath = myFile.getMyFilePath();
        String fileName = myFile.getMyFileName()+myFile.getPostfix();
        try {
            //去FTP上拉取
            OutputStream os = new BufferedOutputStream(response.getOutputStream());
            response.setCharacterEncoding("utf-8");
            // 设置返回类型
            response.setContentType("multipart/form-data");
            // 文件名转码一下，不然会出现中文乱码
            response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(fileName, "UTF-8"));
            boolean flag = FtpUtil.downloadFile("/" + remotePath, fileName, os);
            if (flag) {

    public String shareFile(Integer f,String p,String t,Integer flag){
        String fileNameTemp = "";
        String remotePath = "";
        String fileName = "";
        Integer times = 0;
        if (flag == null || f == null || p == null || t == null){
            logger.info("下载分享文件失败，参数错误");
            return "redirect:/error400Page";
        }
        if(flag == 1){
            //获取文件信息

     **/
    public static boolean deleteFolder( String remotePath){
        boolean flag = false;
        try {
            remotePath = new String(remotePath.getBytes("GBK"),"iso-8859-1");
            if (!initFtpClient()){
                return flag;
            };
            // 转移到FTP服务器目录
            ftp.changeWorkingDirectory(remotePath);
            ftp.enterLocalPassiveMode();
            FTPFile[] fs = ftp.listFiles();
            if (fs.length==0){
                ftp.removeDirectory(remotePath);
                flag = true;

        if (fileStoreService.getFileStoreByUserId(loginUser.getUserId()).getPermission() == 2){
            logger.error("用户没有下载文件的权限!下载失败...");
            return "redirect:/error401Page";
        }
        //获取文件信息
        MyFile myFile = myFileService.getFileByFileId(fId);
        String remotePath = myFile.getMyFilePath();
        String fileName = myFile.getMyFileName()+myFile.getPostfix();
        try {
            //去FTP上拉取
            OutputStream os = new BufferedOutputStream(response.getOutputStream());
            response.setCharacterEncoding("utf-8");
            // 设置返回类型
            response.setContentType("multipart/form-data");
            // 文件名转码一下，不然会出现中文乱码
            response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(fileName, "UTF-8"));
            boolean flag = FtpUtil.downloadFile("/" + remotePath, fileName, os);
            if (flag) {
                myFileService.updateFile(
                        MyFile.builder().myFileId(myFile.getMyFileId()).downloadTime(myFile.getDownloadTime() + 1).build());
                os.flush();
                os.close();
                logger.info("文件下载成功!" + myFile);
            }

            postfix = tempName.toLowerCase();
        }
        try {
            //提交到FTP服务器
            boolean b = FtpUtil.uploadFile("/"+path, name + postfix, files.getInputStream());
            if (b){
                //上传成功
                logger.info("文件上传成功!"+files.getOriginalFilename());
                //向数据库文件表写入数据
                myFileService.addFileByFileStoreId(
                        MyFile.builder()
                              .myFileName(name).fileStoreId(loginUser.getFileStoreId()).myFilePath(path)
                              .downloadTime(0).uploadTime(new Date()).parentFolderId(folderId).
                              size(Integer.valueOf(size)).type(type).postfix(postfix).build());
                //更新仓库表的当前大小
                fileStoreService.addSize(store.getFileStoreId(),Integer.valueOf(size));

            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return result;
    }
    
    /**
     * @Description 删除文件
     * @Author xw
     * @Date 11:38 2020/2/6
     * @Param [remotePath, fileName]
     * @return void
     **/
    public static boolean deleteFile( String remotePath,String fileName){
        boolean flag = false;
        try {
            remotePath = new String(remotePath.getBytes("GBK"),"iso-8859-1");

                os.close();
                logger.info("文件下载成功!");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "success";
    }
    /**
     * @Description 根据文件的后缀名获得对应的类型
     * @Author xw

            return 2;
        } else if (".avi".equals(type)||".mov".equals(type)||".qt".equals(type)
                ||".asf".equals(type)||".rm".equals(type)||".navi".equals(type)||".wav".equals(type)
                ||".mp4".equals(type)||".mkv".equals(type)||".webm".equals(type)){
            return 3;
        } else if (".mp3".equals(type)||".wma".equals(type)){
            return 4;
        } else {
            return 5;
        }
    }
    
    /**
     * @Description 正则验证文件名是否合法 [汉字,字符,数字,下划线,英文句号,横线]

        String dateStr = format.format(new Date());
        String path = loginUser.getUserId()+"/"+dateStr +"/"+folderId;
        if (!checkTarget(name)){
            logger.error("上传失败!文件名不符合规范...");
            map.put("code", 502);
            return map;
        }
        Integer sizeInt = Math.toIntExact(files.getSize() / 1024);
        //是否仓库放不下该文件
        if(store.getCurrentSize()+sizeInt > store.getMaxSize()){
            logger.error("上传失败!仓库已满。");
            map.put("code", 503);
            return map;
        }
        //处理文件大小
        String size = String.valueOf(files.getSize()/1024.0);
        int indexDot = size.lastIndexOf(".");
        size = size.substring(0,indexDot);
        int index = name.lastIndexOf(".");
        String tempName = name;
        String postfix = "";
        int type = 4;

     **/
    public static boolean reNameFile( String oldAllName,String newAllName){
        boolean flag = false;
        try {
            oldAllName = new String(oldAllName.getBytes("GBK"),"iso-8859-1");
            newAllName = new String(newAllName.getBytes("GBK"),"iso-8859-1");
            if (!initFtpClient()){
                return flag;
            };
            ftp.enterLocalPassiveMode();
            ftp.rename(oldAllName,newAllName);
            flag = true;
            ftp.logout();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {

                fileNameTemp = URLEncoder.encode(fileNameTemp, "UTF-8");
            } else {
                //万能乱码问题解决
                fileNameTemp = new String(fileNameTemp.getBytes("UTF-8"), "ISO-8859-1");
            }
            //去FTP上拉取
            OutputStream os = new BufferedOutputStream(response.getOutputStream());
            response.setCharacterEncoding("utf-8");
            // 设置返回类型
            response.setContentType("multipart/form-data");
            // 文件名转码一下，不然会出现中文乱码
            response.setHeader("Content-Disposition", "attachment;fileName=" + fileNameTemp);
            if (FtpUtil.downloadFile("/" + remotePath, fileName, os)) {
                myFileService.updateFile(
                        MyFile.builder().myFileId(f).downloadTime(times + 1).build());
                os.flush();
                os.close();
                logger.info("文件下载成功!");
            }
        } catch (Exception e) {

                return "redirect:/error404Page";
            }
            String pwd = myFile.getUploadTime().getTime()+""+myFile.getSize();
            if (!pwd.equals(p)){
                return "redirect:/error400Page";
            }
            remotePath = myFile.getMyFilePath();
            fileName = myFile.getMyFileName()+myFile.getPostfix();
        }else if(flag == 2){
            TempFile tempFile = tempFileService.queryById(f);
            if (tempFile == null){

                ||".pic".equals(type)||".png".equals(type)||".jepg".equals(type)||".png".equals(type)||".webp".equals(type)
                ||".svg".equals(type)){
            return 2;
        } else if (".avi".equals(type)||".mov".equals(type)||".qt".equals(type)
                ||".asf".equals(type)||".rm".equals(type)||".navi".equals(type)||".wav".equals(type)
                ||".mp4".equals(type)||".mkv".equals(type)||".webm".equals(type)){
            return 3;
        } else if (".mp3".equals(type)||".wma".equals(type)){
            return 4;
        } else {
            return 5;
        }
    }
    
    /**
     * @Description 正则验证文件名是否合法 [汉字,字符,数字,下划线,英文句号,横线]
     * @Author xw
     * @Date 23:22 2020/2/10
     * @Param [target]
     * @return boolean
     **/
    public boolean checkTarget(String target) {

                return flag;
            };
            ftp.enterLocalPassiveMode();
            ftp.rename(oldAllName,newAllName);
            flag = true;
            ftp.logout();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return flag;

        ftp = new FTPClient();
        int reply;
        try {
            // 连接FTP服务器
            ftp.connect(HOST, PORT);
            //登录, 如果采用默认端口，可以使用ftp.connect(host)的方式直接连接FTP服务器
            ftp.login(USERNAME, PASSWORD);
            ftp.setBufferSize(10240);
            //设置传输超时时间为60秒
            ftp.setDataTimeout(600000);
            //连接超时为60秒
            ftp.setConnectTimeout(600000);
            //FTP以二进制形式传输
            ftp.setFileType(FTP.BINARY_FILE_TYPE);
            reply = ftp.getReplyCode();
            if (!FTPReply.isPositiveCompletion(reply)) {
                ftp.disconnect();
                return false;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return true;
    }

@Controller
public class FileStoreController extends BaseController {
    private Logger logger = LogUtils.getInstance(FileStoreController.class);
    /**
     * @Description 上传临时文件
     * @Author xw
     * @Date 23:14 2020/3/9
     * @Param [files]
     * @return void
     **/
    @PostMapping("/uploadTempFile")
    public String uploadTempFile(@RequestParam("file") MultipartFile file,String url) {
        session.setAttribute("imgPath","https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=2654852821,3851565636&fm=26&gp=0.jpg");
        String name = file.getOriginalFilename().replaceAll(" ","");
        if (!checkTarget(name)){
            logger.error("临时文件上传失败!文件名不符合规范...");
            session.setAttribute("msg", "上传失败!文件名不符合规范");
            return "redirect:/temp-file";
        }
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

                    }
                }
            }
        }
        return "redirect:/files?fId="+myFile.getParentFolderId();
    }
    /**
     * @Description 获得二维码 
     * @Author xw
     * @Date 15:20 2020/2/12
     * @Param [id, url]
     * @return java.util.Map<java.lang.String,java.lang.Object>
     **/
    @GetMapping("getQrCode")
    @ResponseBody
    public Map<String,Object> getQrCode(@RequestParam Integer id,@RequestParam String url){
        Map<String,Object> map = new HashMap<>();
        map.put("imgPath","https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=2654852821,3851565636&fm=26&gp=0.jpg");

            }
            ftp.logout();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException ioe) {
                }
            }
        }
        return result;
    }
    
    /**
     * @Description 删除文件
     * @Author xw
     * @Date 11:38 2020/2/6
     * @Param [remotePath, fileName]
     * @return void
     **/