将远程目录中的文件进行读取-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_5368/article/details/81892865

本文介绍了一种通过Java实现远程文件共享的方法，包括如何利用SMB协议读写远程共享目录中的文件，并提供了具体的代码示例。

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通常将远程共享目录中进行读取的时候,需要输入登陆的用户和密码,来判断用户是否有权限进行访问,在代码中需要将用户的信息设置进去,来获取该目录的访问权限等;代码如下:

public class CopyNetFileUtil {
private static final Logger logger = Logger.getLogger(CopyNetFileUtil.class);

/**
* sample
* @param inputPath e:/remarks.xls
* @param outputPath /shared/ocean/remarks.xls
* @throws Exception
*/
public static void writeShareFile(String inputPath, String outputPath) throws Exception {
  try {
   SmbFile smbFile = new SmbFile("smb://用户:密码@IP地址" + outputPath);
   File file = new File(inputPath);
   int length = (int) file.length(); // get file size
   FileInputStream fi = new FileInputStream(file);
   byte buffer[] = new byte[2048];
   SmbFileOutputStream out = new SmbFileOutputStream(smbFile);
   while (fi.read(buffer) != -1) {
    out.write(buffer);
   }
   fi.close();
   out.flush();
   out.close();

  } catch (MalformedURLException e) {
   logger.error(e);
   throw e;
  }

}

public static File readFromSmb(
  String userName,
  String passWd,
  String ip,
  String smbFilePath,
  String localpath) {
  File localfile = null;
  InputStream bis = null;
  OutputStream bos = null;
  String smbMachine = null;
  try {
   smbMachine = "smb://" + userName + ":" + passWd + "@" + ip + smbFilePath;
   SmbFile rmifile = new SmbFile(smbMachine);
   String filename = rmifile.getName();
   bis = new BufferedInputStream(new SmbFileInputStream(rmifile));
   localfile = new File(localpath + filename);
   System.out.println("localfile==" + localfile);
   bos = new BufferedOutputStream(new FileOutputStream(localfile));
   int length = rmifile.getContentLength();
   System.out.println("length==" + length);
   byte[] buffer = new byte[2048];
   while (bis.read(buffer) != -1) {
    bos.write(buffer);
   }
   bos.flush();
  } catch (Exception e) {
   e.printStackTrace();

  } finally {
   try {
    bos.close();
    bis.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  return localfile;
}

public static void main(String[] args) {
  String network_output_ip = "IP地址";
  String network_output_id = "用户名";
  String network_output_password = "密码";
  String network_output_path = "共享文件路径和文件名";

  try {
   CopyNetFileUtil.writeShareFile("d:/test.txt", network_output_path);
  } catch (Exception e) {
   e.printStackTrace();
  }

}
}