java 通过 SmbFile 类操作共享文件夹

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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