是否可以使用javascript将文件保存到特定目录？

Question

Used Filesaver.js plugins to download a text file. By default file download in My download folder. Need to store the downloaded file in a specific folder.

Answer 1

The answer is No, changing a directory is not possible due to security reasons in the File API.

https://github.com/eligrey/FileSaver.js/issues/42

Answer 2

It is not possible... fortunately! Imagine what would happen if JS which runs in your browser could change your filesystem. The security hole would be so big that everyone would (and definitely should ) stop using the Internet. Imagine a situation where I've built a website which onload fires the code which save a file in your filesystem. The file lands in your cron.daily directory (suppose you use Linux). What is the file doing? - you may ask (if you knew that it's been even saved :smiling_imp:). Nothing special - just looking for some private data and when finished it deletes random files from /usr/bin , /proc , /sys and maybe /etc - just to see what happens.

Do you see the problem now? The code which runs in your browser before you can react to this cannot have such power to save anything in your filesystem. The only thing you can do to give the user a file is to use a module like Filesaver.js which, in fact, does not have access to user's file system at all. It just makes a GET request to the file directly and it's the browser which downloads the file (because that's how a browser works). So the only way you can change the location of the downloaded file is to change the browser settings. No other way I know of.