opening any arbitrary file on disk using HTML File API

问题

Is this possible to programmatically open any file on disk using HTML5 File API, for example adding at first those paremeters?

open -a Chromium --args --allow-file-access-from-files --disable-web-security

回答1:

First you have to open Chrome using the flag --allow-file-access-from-files Make sure all your chrome windows are closed before opening it with the flag.

Then with javascript you have to use the XMLHttpRequest object. Something like this:

xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET","file.txt",false);
xmlhttp.send();
var result = xmlhttp.responseText;

In result you will have the content of the file.

If it's an xml you can automatically parse it using

var xmlDom = xmlhttp.responseXML;

The file path has to be relative to the html file you are opening.

来源：https://stackoverflow.com/questions/16150593/opening-any-arbitrary-file-on-disk-using-html-file-api