Javascript将数据保存到文件系统（使用用户提示符） [英] Javascript save data to file system (with user prompt)
问题描述
在最新的最新浏览器中实现以下功能的最佳方式是什么（支持html5）。我主要针对谷歌浏览器。
在我的应用程序中，数据是通过JavaScript处理的，需要使用浏览器提示（另存为对话框）将输出写入文件系统。我不确定要写入文件系统的安全限制，但我不打算匿名写入（但会提示用户并选择位置）。
我看到 saveAs 尚未原生支持。在我的研究中，我看到很少的选择。
- https://github.com/eligrey/FileSaver.js
- a.download（ http://html5-demos.appspot.com/static/a.download.html ）
- web文件系统
- 对象URL
FileServer重新回到2,3， 4如果没有本地支持，我可以使用它。但是，我找不到打开另存为对话框的方法。它只是将文件保存在默认位置（在mac中下载文件夹）。
您将使用哪种方式在最新的浏览器中获得良好的支持？
如何打开另存为对话框并让用户命名文件。
谢谢。
我同意Nathan Hayfield。浏览器将为您处理保存对话框。设置标题Content-Disposition会将响应作为附件发回，浏览器将从那里处理它。
eg。
content.Headers.Add（Content-Disposition，attachment; filename = export.csv ）;
What is the best way to achieve the below in latest latest browsers (with html5 support). I mainly target Google Chrome.
In my application, data is manipulated through javascript and needs to write output to the file system with a browser prompt (save as dialog). I am not sure about the security restrictions to write to file system, but I am not planning anonymous write (but user is prompted, and selects the location).
I see saveAs not natively supported yet. With my research, I see few options.
- https://github.com/eligrey/FileSaver.js
- a.download (http://html5-demos.appspot.com/static/a.download.html)
- web filesystem
- object URLs
FileServer falls back to 2,3,4 if no native support and I may use it. But, I don't find a way to open a Save As dialog. It just save a file in default location (downloads folder in mac).
Which option would you use to get a good support in latest browsers? How can get open the Save As dialog and let the user name the file.
Thanks.
I agree with Nathan Hayfield. The browser will handle the save dialog box for you. Setting the header Content-Disposition will send the response back as an attachment and the browser will handle it from there. eg.
content.Headers.Add("Content-Disposition", "attachment; filename=export.csv");
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