java 通过 SmbFile 类操作共享文件夹，膜拜大牛

        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
------

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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