java 通过 SmbFile 类操作共享文件夹的示例

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

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