java 通过 SmbFile 类操作共享文件夹的示例

时间:2021-09-03 06:37:53

一、添加依赖

在pom.xml文件夹中添加如下的依赖就可以引用SmbFile类的jar包。

  1. <dependency>
  2. <groupId>jcifs</groupId>
  3. <artifactId>jcifs</artifactId>
  4. <version>1.3.17</version>
  5. </dependency>

二、读取文件

  1. /**
  2. * 读取共享文件夹下的所有文件(文件夹)的名称
  3. * @param remoteUrl
  4. */
  5. public static void getSharedFileList(String remoteUrl) {
  6. SmbFile smbFile;
  7. try {
  8. // smb://userName:passWord@host/path/
  9. smbFile = new SmbFile(remoteUrl);
  10. if (!smbFile.exists()) {
  11. System.out.println("no such folder");
  12. } else {
  13. SmbFile[] files = smbFile.listFiles();
  14. for (SmbFile f : files) {
  15. System.out.println(f.getName());
  16. }
  17. }
  18. } catch (MalformedURLException e) {
  19. e.printStackTrace();
  20. } catch (SmbException e) {
  21. e.printStackTrace();
  22. }
  23. }

三、创建文件夹

  1. /**
  2. * 创建文件夹
  3. * @param remoteUrl
  4. * @param folderName
  5. * @return
  6. */
  7. public static void smbMkDir(String remoteUrl, String folderName) {
  8. SmbFile smbFile;
  9. try {
  10. // smb://userName:passWord@host/path/folderName
  11. smbFile = new SmbFile(remoteUrl + folderName);
  12. if (!smbFile.exists()) {
  13. smbFile.mkdir();
  14. }
  15. } catch (MalformedURLException e) {
  16. e.printStackTrace();
  17. } catch (SmbException e) {
  18. e.printStackTrace();
  19. }
  20. }

四、上传文件

  1. /**
  2. * 上传文件
  3. * @param remoteUrl
  4. * @param shareFolderPath
  5. * @param localFilePath
  6. * @param fileName
  7. */
  8. public static void uploadFileToSharedFolder(String remoteUrl, String shareFolderPath, String localFilePath, String fileName) {
  9. InputStream inputStream = null;
  10. OutputStream outputStream = null;
  11. try {
  12. File localFile = new File(localFilePath);
  13. inputStream = new FileInputStream(localFile);
  14. // smb://userName:passWord@host/path/shareFolderPath/fileName
  15. SmbFile smbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);
  16. smbFile.connect();
  17. outputStream = new SmbFileOutputStream(smbFile);
  18. byte[] buffer = new byte[4096];
  19. int len = 0; // 读取长度
  20. while ((len = inputStream.read(buffer, 0, buffer.length)) != -1) {
  21. outputStream.write(buffer, 0, len);
  22. }
  23. // 刷新缓冲的输出流
  24. outputStream.flush();
  25. } catch (FileNotFoundException e) {
  26. e.printStackTrace();
  27. } catch (MalformedURLException e) {
  28. e.printStackTrace();
  29. } catch (IOException e) {
  30. e.printStackTrace();
  31. } finally {
  32. try {
  33. outputStream.close();
  34. inputStream.close();
  35. } catch (IOException e) {
  36. e.printStackTrace();
  37. }
  38. }
  39. }

五、下载文件

  1. /**
  2. * 下载文件到浏览器
  3. * @param httpServletResponse
  4. * @param remoteUrl
  5. * @param shareFolderPath
  6. * @param fileName
  7. */
  8. public static void downloadFileToBrowser(HttpServletResponse httpServletResponse, String remoteUrl, String shareFolderPath, String fileName) {
  9. SmbFile smbFile;
  10. SmbFileInputStream smbFileInputStream = null;
  11. OutputStream outputStream = null;
  12. try {
  13. // smb://userName:passWord@host/path/shareFolderPath/fileName
  14. smbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);
  15. smbFileInputStream = new SmbFileInputStream(smbFile);
  16. httpServletResponse.setHeader("content-type", "application/octet-stream");
  17. httpServletResponse.setContentType("application/vnd.ms-excel;charset=UTF-8");
  18. httpServletResponse.setHeader("Content-disposition", "attachment; filename=" + fileName);
  19. // 处理空格转为加号的问题
  20. httpServletResponse.setHeader("Content-Disposition", "attachment; fileName=" + fileName + ";filename*=utf-8''" + URLEncoder.encode(fileName, "UTF-8").replaceAll("\\+", "%20"));
  21. outputStream = httpServletResponse.getOutputStream();
  22. byte[] buff = new byte[2048];
  23. int len;
  24. while ((len = smbFileInputStream.read(buff)) != -1) {
  25. outputStream.write(buff, 0, len);
  26. }
  27. } catch (MalformedURLException e) {
  28. e.printStackTrace();
  29. } catch (SmbException e) {
  30. e.printStackTrace();
  31. } catch (UnknownHostException e) {
  32. e.printStackTrace();
  33. } catch (IOException e) {
  34. e.printStackTrace();
  35. }
  36. finally {
  37. try {
  38. outputStream.close();
  39. smbFileInputStream.close();
  40. } catch (IOException e) {
  41. e.printStackTrace();
  42. }
  43. }
  44. }
  1. /**
  2. * 下载文件到指定文件夹
  3. * @param remoteUrl
  4. * @param shareFolderPath
  5. * @param fileName
  6. * @param localDir
  7. */
  8. public static void downloadFileToFolder(String remoteUrl, String shareFolderPath, String fileName, String localDir) {
  9. InputStream in = null;
  10. OutputStream out = null;
  11. try {
  12. SmbFile remoteFile = new SmbFile(remoteUrl + shareFolderPath + File.separator + fileName);
  13. File localFile = new File(localDir + File.separator + fileName);
  14. in = new BufferedInputStream(new SmbFileInputStream(remoteFile));
  15. out = new BufferedOutputStream(new FileOutputStream(localFile));
  16. byte[] buffer = new byte[1024];
  17. while (in.read(buffer) != -1) {
  18. out.write(buffer);
  19. buffer = new byte[1024];
  20. }
  21. } catch (Exception e) {
  22. e.printStackTrace();
  23. } finally {
  24. try {
  25. out.close();
  26. in.close();
  27. } catch (IOException e) {
  28. e.printStackTrace();
  29. }
  30. }
  31. }

六、删除文件

  1. /**
  2. * 删除文件
  3. * @param remoteUrl
  4. * @param shareFolderPath
  5. * @param fileName
  6. */
  7. public static void deleteFile(String remoteUrl, String shareFolderPath, String fileName) {
  8. SmbFile SmbFile;
  9. try {
  10. // smb://userName:passWord@host/path/shareFolderPath/fileName
  11. SmbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);
  12. if (SmbFile.exists()) {
  13. SmbFile.delete();
  14. }
  15. } catch (MalformedURLException e) {
  16. e.printStackTrace();
  17. } catch (SmbException e) {
  18. e.printStackTrace();
  19. }
  20. }

删除文件夹将路径指向要删除的文件夹即可。

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原文链接:https://blog.csdn.net/guorui_java/article/details/113619778