用户指定的下载位置 [英] User specified download location

问题描述

我一直在寻找一段时间，我找不到正确的答案。

基本上我有一个网页，让用户输入一些价值和下载具体文件取决于输入的值。
全部正在工作，但是我想让用户选择保存文件的位置，而不是将浏览器保存到默认的下载位置。

我正在使用follownig开始下载。

  / ** 
 *获取数据文件的URL，并确保用户想下载它
 ** / 
函数getResultDataHandler（result，messages）{
 var dataURL = result.value.url; 
 
 var r = confirm（保存文件？）; 
 if（r == true）{
下载（dataURL）; 
} 
 else {
 console.log（Cancelled）; 
} 
 showMessage（，true）; 
} 
 
 / ** 
 *打开下载对话框
 ** / 
函数下载（dataURL）{
 console.log 下载）; 
 window.open（dataURL，'下载'）; 
} 
  

解决方案

浏览器是否要求用户或者不符合用户在浏览器中的偏好。您不能绕过这些偏好（如果用户希望始终将文件下载到指定的位置，那么应该允许这样做）。

您可以做的是确保您尽可能多地发送浏览器信息，以帮助其获得良好的用户体验。如果你还没有这样做（你可能是），请确保在下载请求的响应中包含一个 Content-Disposition 头，包括一个 filename 字段：

 内容处理：附件;文件名= foo.csv 
  

但我猜你已经在做这个部分。 >

I've been looking about for a while now and I cant find a proper answer.

Basically I have a web page that lets the user enter somevalues and download a specific file depending on the values entered. All is working but, I want to enable the user to select where to save the file to, instead of just the browser saving to the default download location.

I am using the follownig to initiate the download.

 /**
        *    Get URL for data file and ensure user wants to download it
        **/
        function getResultDataHandler(result, messages) {
           var dataURL = result.value.url;

            var r = confirm("Save File?");
            if (r == true) {
                download(dataURL);
            }
            else {
                console.log("Canceled");
            }
            showMessage("", true);
        }

        /**
        *    Open the download dialog
        **/
        function download(dataURL) {
            console.log("downloading");
            window.open(dataURL, 'Download');
        }

解决方案

Whether the browser asks the user or not is down to the user's preferences in the browser. You can't bypass those preferences (nor, really, should you — if the user wants to always download files to a specified location, they should be allowed to do that).

What you can do is make sure you're sending the browser as much information as possible to help it make for a good user experience. If you're not already doing so (you probably are), be sure to include a Content-Disposition header in the response to the download request, including a filename field:

Content-Disposition: attachment; filename=foo.csv

But I'm guessing you're already doing that part.

这篇关于用户指定的下载位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！