是否可以使用javascript将文件保存到当前文件所在的目录？

Question

I am writing JavaScript code which is executed in a local web server. Is it possible to have that code generate another file, which is then added to the same directory as the original file? If so, how?

Answer 1

I am not an expert on this, but I will try to help out. From my understanding the only way to create a file on the server is to have server side code do it. You could have the javascript call some endpoint and that could create the file. But I believe it is impossible to directly create the file.

Answer 2

Things have greatly changed with HTML5 and so the answer is "Yes!" provided that one is using a modern browser and/or one takes advantage of JavaScript libraries that may aid with this endeavor. Take a look here as well as here . If you alter your browser's download settings to the desired folder of your local web server, when you submit the form the file will be downloaded there. I tried this using google chrome 49 on a windows box using wampserver and the file was saved exactly in the specified folder. After forking the code here , it ran successfully on my local webserver from the directory where I wanted the new file to be downloaded.

The pertinent jQuery code from codepen.io:

$("#btn-save").click( function() {
      var text = $("#textarea").val();
      var filename = $("#input-fileName").val()
      var blob = new Blob([text], {type: "text/plain;charset=utf-8"});
      saveAs(blob, filename+".txt");
    });