java 通过 SmbFile 类操作共享文件夹的示例

目录一、添加依赖二、读取文件三、创建文件夹四、上传文件五、下载文件六、删除文件

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。

<dependency>  <groupId>jcifs</groupId>  <artifactId>jcifs</artifactId>  <version>1.3.17</version></dependency>

二、读取文件

/** * 读取共享文件夹下的所有文件(文件夹)的名称 * @param remoteUrl */public static void getSharedFileList(String remoteUrl) { SmbFile smbFile; try {  // smb://userName:passWord@host/path/  smbFile = new SmbFile(remoteUrl);  if (!smbFile.exists()) {   System.out.println("no such folder");  } else {   SmbFile[] files = smbFile.listFiles();   for (SmbFile f : files) {    System.out.println(f.getName());   }  } } catch (MalformedURLException e) {  e.printStackTrace(); } catch (SmbException e) {  e.printStackTrace(); }}

三、创建文件夹

/** * 创建文件夹 * @param remoteUrl  * @param folderName * @return */public static void smbMkDir(String remoteUrl, String folderName) { SmbFile smbFile; try {  // smb://userName:passWord@host/path/folderName  smbFile = new SmbFile(remoteUrl + folderName);  if (!smbFile.exists()) {   smbFile.mkdir();  } } catch (MalformedURLException e) {  e.printStackTrace(); } catch (SmbException e) {  e.printStackTrace(); }}

四、上传文件

/** * 上传文件 * @param remoteUrl * @param shareFolderPath * @param localFilePath * @param fileName */public static void uploadFileToSharedFolder(String remoteUrl, String shareFolderPath, String localFilePath, String fileName) { InputStream inputStream = null; OutputStream outputStream = null; try {  File localFile = new File(localFilePath);  inputStream = new FileInputStream(localFile);  // smb://userName:passWord@host/path/shareFolderPath/fileName  SmbFile smbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);  smbFile.connect();  outputStream = new SmbFileOutputStream(smbFile);  byte[] buffer = new byte[4096];  int len = 0; // 读取长度  while ((len = inputStream.read(buffer, 0, buffer.length)) != -1) {   outputStream.write(buffer, 0, len);  }  // 刷新缓冲的输出流  outputStream.flush(); } catch (FileNotFoundException e) {  e.printStackTrace(); } catch (MalformedURLException e) {  e.printStackTrace(); } catch (IOException e) {  e.printStackTrace(); } finally {  try {   outputStream.close();   inputStream.close();  } catch (IOException e) {   e.printStackTrace();  } }}

五、下载文件

/** * 下载文件到浏览器 * @param httpServletResponse * @param remoteUrl * @param shareFolderPath * @param fileName */public static void downloadFileToBrowser(HttpServletResponse httpServletResponse, String remoteUrl, String shareFolderPath, String fileName) { SmbFile smbFile; SmbFileInputStream smbFileInputStream = null; OutputStream outputStream = null; try {  // smb://userName:passWord@host/path/shareFolderPath/fileName  smbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);  smbFileInputStream = new SmbFileInputStream(smbFile);  httpServletResponse.setHeader("content-type", "application/octet-stream");  httpServletResponse.setContentType("application/vnd.ms-excel;charset=UTF-8");  httpServletResponse.setHeader("Content-disposition", "attachment; filename=" + fileName);  // 处理空格转为加号的问题  httpServletResponse.setHeader("Content-Disposition", "attachment; fileName=" + fileName + ";filename*=utf-8''" + URLEncoder.encode(fileName, "UTF-8").replaceAll("\\+", "%20"));  outputStream = httpServletResponse.getOutputStream();  byte[] buff = new byte[2048];  int len;  while ((len = smbFileInputStream.read(buff)) != -1) {   outputStream.write(buff, 0, len);  } } catch (MalformedURLException e) {  e.printStackTrace(); } catch (SmbException e) {  e.printStackTrace(); } catch (UnknownHostException e) {  e.printStackTrace(); } catch (IOException e) {  e.printStackTrace(); } finally {  try {   outputStream.close();   smbFileInputStream.close();  } catch (IOException e) {   e.printStackTrace();  } }}

/** * 下载文件到指定文件夹 * @param remoteUrl * @param shareFolderPath * @param fileName * @param localDir */public static void downloadFileToFolder(String remoteUrl, String shareFolderPath, String fileName, String localDir) { InputStream in = null; OutputStream out = null; try {  SmbFile remoteFile = new SmbFile(remoteUrl + shareFolderPath + File.separator + fileName);  File localFile = new File(localDir + File.separator + fileName);  in = new BufferedInputStream(new SmbFileInputStream(remoteFile));  out = new BufferedOutputStream(new FileOutputStream(localFile));  byte[] buffer = new byte[1024];  while (in.read(buffer) != -1) {   out.write(buffer);   buffer = new byte[1024];  } } catch (Exception e) {  e.printStackTrace(); } finally {  try {   out.close();   in.close();  } catch (IOException e) {   e.printStackTrace();  } }}

六、删除文件

/** * 删除文件 * @param remoteUrl * @param shareFolderPath * @param fileName */public static void deleteFile(String remoteUrl, String shareFolderPath, String fileName) { SmbFile SmbFile; try {  // smb://userName:passWord@host/path/shareFolderPath/fileName  SmbFile = new SmbFile(remoteUrl + shareFolderPath + "/" + fileName);  if (SmbFile.exists()) {   SmbFile.delete();  } } catch (MalformedURLException e) {  e.printStackTrace(); } catch (SmbException e) { e.printStackTrace(); }}

删除文件夹将路径指向要删除的文件夹即可。

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