在Java中检查路径是否存在于服务器上 [英] Check whether the path exists on server or not in Java

问题描述

我正在创建一个Java程序，其中将文件上传到特定路径上的服务器.我正在将jSch用于sftp.

I am creating a Java program in which I am uploading file to server on a particular path. I am using jSch for sftp.

因此，在上传文件之前，我要检查给定目录在服务器上是否存在.

So, before uploading the file, I want to check if the given directory exists on server or not.

if(path exists)
    //upload file to the location
else
    //create the directory and then upload the file.

如何检查路径是否存在?

How do I check the path exists or not?

注意::我正在客户端上执行代码，该代码将检查服务器上是否存在远程目录.因此，请不要建议File.exists().

Note: I am executing the code on a client that will check for the existence of a remote directory on a server. So please don't suggest File.exists().

推荐答案

阅读 ChannelSftp的文档，您似乎可以仅lstat目录:

Reading the Documentation for ChannelSftp it would appear you can just lstat the directory:

SftpATTRS attrs = channelSftp.lstat(path);

如果引发异常，则该异常不存在.然后，您可以使用channelSftp.mkdir(path)进行创建.

If that throws an exception, it doesn't exist. You can then use channelSftp.mkdir(path) to create it.

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