在JavaScript中选择目录路径

问题描述

有没有办法通过JavaScript选择目录？

Is there any way to select a directory via JavaScript?

不用于上传文件，只是为了选择目录路径。 （目录对话框或其他内容）

Not for uploading a file, just to choose a directory path. (Directory dialog or something)

推荐答案

出于安全考虑，您不能（您不希望网站能够了解你的文件系统。）

You can't, for security reasons (you don't want a website to be able to know about your file system).

见下文，当你得到一个文件输入的值时，它会被破坏（在我的电脑上，例如它总是是 c：/ fakepath / something ）。文件输入也存在用例问题：选择一个文件夹会显示其内容列表，因此一个空文件夹将不会在我的代码段中记录任何内容。

See below, when you get the value of a file input, it will be mangled (on my computer, for example it will always be c:/fakepath/something). The file input also has problems for your usecase : selecting a folder will give you the list of its contents, so an empty folder will log nothing in my snippet.

function browseResult(e){
  var fileselector = document.getElementById('fileselector');
  console.log(fileselector.value);
}

<input id="fileselector" type="file" onchange="browseResult(event)" webkitdirectory directory multiple="false" style="display:none" />
<button onclick="getElementById('fileselector').click()">browse</button>

你可以做它通过插件，例如Flash，Java或Air，但用户必须已经安装或安装它。插件生态系统似乎已经死了。

You could do it via a plugin, such as Flash, Java or Air for example, but users would have to either have it installed already or install it. The plugin ecosystem seems pretty much dead.

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