Selenium：将Internet Explorer中的文件下载到没有直接链接的指定文件夹，没有Windows窗体，没有AutoIt或Robot

我经常遇到一个问题，如何在IE中下载文件。 与Firefox的Chrome相比，您不仅可以指定所需的文件夹，而且所有文件都将下载到该文件夹​​。 您还需要与本机Windows窗体等进行交互。

有多种选择，比如使用AutoIt，使用键盘命令，机器人等……但是所有这些选项都不稳定，它们需要使用冗余库进行显式等待，并且在并行运行测试时不合适。 另一个问题是，该怎么办，如果文件没有通过直接链接下载，但链接是从javascript命令生成或从服务器接收，并且无法从html中提取。

所有这些问题都可以解决，在这里，我将展示如何做到这一点。 解决方案是用c＃编写的，我相信同样可以在java中实现

Answer 1

方法DownloadFileIexplore将文件下载到指定的filePath（文件夹+文件名），例如DownloadFileExplore（“C：\ my_folder \ report.xslx”）

public void DownloadFileIexplore(string filePath) { //Click the link. //Simple click can be used instead, but in my case it didn't work for all the links, so i've replaced it with click via action: new Actions(Browser.Driver).MoveToElement(Element).Click(Element).Perform(); //Different types of element can be used to download file. //If the element contains direct link, it can be extracter from 'href' attribute. //If the element doesn't contains href or it's just an javascript command, link will be extracted from the browser http requests. // string downloadUrlOrLink = Element.GetAttribute("href") != null && !Element.GetAttribute("href").Contains("javascript") ? Element.GetAttribute("href") : GetRequestUrls().Last() ?? GetLinkInNewWindowIexplore(); if (downloadUrlOrLink == null) { throw Log.Exception("Download url cannot be read from the element href attribute and from the recent http requests."); } /// the last step is to download file using CookieWebClient /// method DownloadFile is available in the System.Net.WebClient, /// but we have to create new class CookieWebClient, that will be inherited from System.Net.WebClient with one overriden method new CookieWebClient(GetCookies()).DownloadFile(downloadUrlOrLink, filePath); } /// 
 /// this method returns all the http requests sent from browser. /// the latest requests was send when link (or button) was clicked to download file /// so we will need just to get last element from list: GetRequestUrls().Last(). /// or, if the request for file downloading isn't the last, find the required request by part of url, in my case it was 'common/handler', eg: /// GetRequestUrls().LastOrDefault(x => x.Contains("common/handler")) /// 
 public List GetRequestUrls() { ReadOnlyCollection