简单的客户端文件处理，无需刷新 [英] Simple client-side file processing without refresh

问题描述

对于以下用例，什么是干净简单的 JavaScript 解决方案：

What is a clean and simple JavaScript solution for the below use case:

在网页上，用户从本地文件系统中选择并上载文本文件，但不是将文件加载到服务器，而是打开客户端javascript代码并处理文件内容，并将结果写入同一页面而不刷新页面。

On a web page, user selects and uploads a text file from her local filesystem, but instead of loading the file to a server, the client-side javascript code opens and processes the content of the file, and writes the results to the same page without refreshing the page.

注意：我不需要保留文件的内容 - 如果用户关闭页面，那么内容就会丢失，这很好。一切都应该发生在客户端的页面上 - 无需触摸服务器。

Note: I don't need to persist the content of the file - if the user closes the page then the content is lost and that is fine. Everything should happen on the page on the client side - no need to touch the server.

如果有一些轻量级 JQuery 这个插件，很想知道！

If there is some lightweight JQuery plug-in for this, would love to know!

推荐答案

你所说的是HTML5文件API。我不确定描述它的最佳链接是什么，但这可能有所帮助。 https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications

What you're talking about is the HTML5 File API. I'm not sure what is the best link to describe it, but this might help. https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications

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