无法从Chrome设置默认下载目录 [英] Unable to set default download directory from chrome

问题描述

我在设置chrome驱动程序的默认下载文件夹时遇到问题. 我发现了一些与此有关的信息，但没有一个起作用. 这是我尝试过的:

I have problems with setting the default download folder for chrome driver. I found some information related to this but none of it is working. This is what I've tried:

var options = new ChromeOptionsWithPrefs();
options.AddArguments("start-maximized");
options.prefs = new Dictionary<string, object> {
                { "download.default_directory", folderName },
                { "download.prompt_for_download", false },
                { "intl.accept_languages", "nl" }};
webdriver = new ChromeDriver(chromedriver_path, options);

和

var options = new ChromeOptions();
options.AddUserProfilePreference("download.default_directory", folderName);
options.AddUserProfilePreference("intl.accept_languages", "nl");
options.AddUserProfilePreference("download.prompt_for_download", "false");

我正在使用chrome驱动程序2.9(最新版本)和chrome版本33. 还尝试为chrome设置默认目录，当我启动Web驱动程序时，我希望默认目录会被更改，但是我做得不好.

I am using chrome driver 2.9(latest one) and chrome version 33. Also tried to set a default directory for chrome and when I start the web-driver I expect that the default directory to be change but I did not work as well.

您对我如何设置此默认文件夹有什么新想法吗?

Do you have any new idea how I can set the this default folder?

添加声明:

string folderName = @"C:\Browser";

推荐答案

在使用ChromeDriver 2.24和Selenium 3.0进行此操作时遇到麻烦.

I was running into trouble doing this with ChromeDriver 2.24 and Selenium 3.0.

对我来说，以下代码有效:

For me the following code worked:

var service = ChromeDriverService.CreateDefaultService(driverPath);

var downloadPrefs = new Dictionary<string, object>
{
    {"default_directory", @"C:\Users\underscore\MyCustomLocation"},
    {"directory_upgrade", true}
};

var options = new ChromeOptions();
options.AddUserProfilePreference("download", downloadPrefs);

return new ChromeDriver(service, options);

希望这对现在尝试做的人有所帮助.

Hopefully this helps anyone trying to do it now.

以防将来发生变化；我通过打开默认的Chrome偏好设置文件验证了所需的格式.通过浏览到chrome://version并在配置文件路径"指定的位置打开首选项"文件，可以找到此文件的位置.这表明默认的"download"键具有一个具有这些值的对象.

In case it changes in future; I verified the required format by opening my default Chrome preferences file. The location of this file can be found by browsing to chrome://version and opening the Preferences file at the location specified by Profile Path. This showed that the default "download" key has an object with these values.

然后我可以通过打开Selenium Chrome浏览器使用的首选项文件(再次检查chrome://version中的位置)来检查是否应用了更改.

I could then check the changes were applied by opening the preferences file used by the Selenium Chrome browser (again by checking the location from chrome://version).

类似地，为了禁用阻止文件下载的内置Chrome PDF Viewer，我在配置中添加了以下几行:

Similarly in order to disable the inbuilt Chrome PDF Viewer which was blocking file downloads, I added the following lines to the configuration:

var pdfViewerPlugin = new Dictionary<string, object>
{
    ["enabled"] = false,
    ["name"] = "Chrome PDF Viewer"
};

var pluginsList = new Dictionary<string, object>
{
    { "plugins_list", new [] { pdfViewerPlugin } }
};

var downloadPreferences = new Dictionary<string, object>
{
    {"default_directory", launchOptions.DownloadFolder},
    {"directory_upgrade", true}
};

var options = new ChromeOptions();
options.AddUserProfilePreference("download", downloadPreferences);
options.AddUserProfilePreference("plugins", pluginsList);

---

Firefox

---

由于我今天在此上浪费了一个小时，因此以下是运行相同版本的Selenium的Firefox(49+)的配置(注意:这不适用于GeckoDriver 0.10.0和Selenium 3.0.0+ ，GeckoDriver必须是0.11.1版):

---

Firefox

---

Since I wasted another hour on this today, here is the configuration for Firefox (49+) running the same version of Selenium (Note: this won't work with GeckoDriver 0.10.0 and Selenium 3.0.0+, GeckoDriver must be version 0.11.1):

var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "GeckoBinary");

var service = FirefoxDriverService.CreateDefaultService(path);

service.HideCommandPromptWindow = true;

var profile = new FirefoxProfile();

profile.SetPreference("browser.download.dir", myDownloadLocation);
profile.SetPreference("browser.download.downloadDir", myDownloadLocation);
profile.SetPreference("browser.download.defaultFolder", myDownloadLocation);
profile.SetPreference("browser.helperApps.neverAsk.saveToDisk", ContentTypes.AllTypesSingleLine);
profile.SetPreference("pdfjs.disabled", true);
profile.SetPreference("browser.download.useDownloadDir", true);
profile.SetPreference("browser.download.folderList", 2);

return new FirefoxDriver(service, new FirefoxOptions
{
    Profile = profile
}, TimeSpan.FromMinutes(5));

ContentTypes.AllTypesSingleLine只是一个包含mime类型的字符串，例如:

Where ContentTypes.AllTypesSingleLine is just a string containing mime types, e.g.:

application/pdf;application/excel;...

从GeckoDriver 0.11.1和Selenium 3.0.1开始，可以将其简化为:

As of GeckoDriver 0.11.1 and Selenium 3.0.1 this can be simplified to:

var options = new FirefoxOptions();

options.SetPreference("browser.download.dir", launchOptions.DownloadFolder);
options.SetPreference("browser.download.downloadDir", launchOptions.DownloadFolder);
options.SetPreference("browser.download.defaultFolder", launchOptions.DownloadFolder);
options.SetPreference("browser.helperApps.neverAsk.saveToDisk", ContentTypes.AllTypesSingleLine);
options.SetPreference("pdfjs.disabled", true);
options.SetPreference("browser.download.useDownloadDir", true);
options.SetPreference("browser.download.folderList", 2);

return new FirefoxDriver(service, options, TimeSpan.FromMinutes(5));

这篇关于无法从Chrome设置默认下载目录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！