Firefox Profile无法自动下载文件

Question

I am trying to bypass the firefox download manager window when downloading a pdf file in a selenium test by using firefox profile settings:

        FirefoxProfile profile = new FirefoxProfile();
        profile.setPreference("browser.download.folderList", 2);
        profile.setPreference("browser.download.dir", "path/to/downloads");
        profile.setPreference("browser.download.useDownloadDir", true);
        profile.setPreference("browser.helperApps.neverAsk.openFile", "application/x-pdf, application/pdf, application/octet-stream, text/csv,application/x-msexcel,application/excel,application/x-excel,application/vnd.ms-excel,image/png,image/jpeg,text/html,text/plain,application/msword,application/xml");
        profile.setPreference("browser.helperApps.neverAsk.saveToDisk", "application/x-pdf, application/pdf, application/octet-stream, text/csv,application/x-msexcel,application/excel,application/x-excel,application/vnd.ms-excel,image/png,image/jpeg,text/html,text/plain,application/msword,application/xml");
        profile.setPreference("browser.helperApps.alwaysAsk.force", false);
        profile.setPreference("browser.download.manager.alertOnEXEOpen", false);
        profile.setPreference("browser.download.manager.focusWhenStarting", false);
        profile.setPreference("browser.download.manager.useWindow", false);
        profile.setPreference("browser.download.manager.showAlertOnComplete", false);
        profile.setPreference("browser.download.manager.closeWhenDone", false);
        FirefoxOptions options = new FirefoxOptions();
        options.setProfile(profile);
        WebDriver driver = new FirefoxDriver(options);
        driver.get("https://mozilla.github.io/pdf.js/web/viewer.html");
        Thread.sleep(3000);
        driver.findElement(By.id("download")).click();
        Thread.sleep(5000);

我尝试了不同的配置文件偏好变体，但似乎没有任何效果。

还需要注意的是，我看到该文件在下载文件夹中显示为一些带有奇怪扩展名的随机字符串，如下所示： 5daYs8iE.pdf.part 。 如果我没有点击下载 window 上的 OK 按钮就退出测试，那么文件就会消失，但是如果我点击它，那么文件会保存并将其扩展名更改为 PDF

在org.seleniumhq.selenium:selenium-firefox-driver:3.141.59

Answer 1

无需设置所有首选项，您可以手动创建 Firefox 配置文件，手动设置您需要的所有内容（PDF 自动下载等）并像这样加载现有配置文件：

package tyler;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.By;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.firefox.FirefoxProfile;
import org.openqa.selenium.firefox.ProfilesIni;

public class Tyler {

    public static void main(String[] args) throws InterruptedException {
        FirefoxOptions options = new FirefoxOptions();
        ProfilesIni allProfiles = new ProfilesIni();         
        FirefoxProfile selenium_profile = allProfiles.getProfile("selenium_profile");
        options.setProfile(selenium_profile);
        options.setBinary("C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");
        System.setProperty("webdriver.gecko.driver", "C:\\Users\\pavel.burgr\\Desktop\\webdrivers\\geckodriver.exe");
        WebDriver driver = new FirefoxDriver(options);
        driver.manage().window().maximize();
        driver.get("https://mozilla.github.io/pdf.js/web/viewer.html");
        Thread.sleep(10000);
        driver.findElement(By.id("download")).click();
        Thread.sleep(10000);
    }

}