试试这个，在windows上执行
（How to control the download of files with Selenium Python bindings in Chrome）

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

options = Options()
options.add_experimental_option("prefs", {
  "download.default_directory": r"C:\Users\xxx\downloads\Test",
  "download.prompt_for_download": False,
  "download.directory_upgrade": True,
  "safebrowsing.enabled": True
})

下面的程序将帮助您在Chrome中下载具有所需功能的文件。这是一个丰富的类有很多实用程序，你可以通过它在你的空闲时间。

public class DownloadChromeFile {
       public static void main(String[] args) {
       System.setProperty("webdriver.chrome.driver","./chromedriver.exe");
       String downloadFilepath = "c:\\download";

       HashMap<String, Object> chromePrefs = new HashMap<String, Object>();
       chromePrefs.put("profile.default_content_settings.popups", 0);
       chromePrefs.put("download.default_directory", downloadFilepath);
       ChromeOptions options = new ChromeOptions();
       HashMap<String, Object> chromeOptionsMap = new HashMap<String, Object>();
       options.setExperimentalOption("prefs", chromePrefs);
       options.addArguments("--test-type");
       options.addArguments("--disable-extensions"); //to disable browser extension popup

       DesiredCapabilities cap = DesiredCapabilities.chrome();
       cap.setCapability(ChromeOptions.CAPABILITY, chromeOptionsMap);
       cap.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true); // Bydefault it will accepts all popups.
       cap.setCapability(ChromeOptions.CAPABILITY, options);
       driver = new ChromeDriver(cap);  
                driver.get("Your Application Url");
                driver.findElement(By.xpath("Export Button xpath")).click();
        }
}

我已经详细展示了here，如何使用Selenium在Chrome和Firefox中下载任何 * 可能有害 * 的文件时避免任何警告/弹出窗口。按照以下步骤操作（* 在Windows和Linux* 中的Chrome和Firefox v113 + Selenium 4.9.1 + Java 8中测试和验证）

HashMap<String, Object> chromePrefs = new HashMap<String, Object>();
chromePrefs.put("safebrowsing.enabled","true");
ChromeOptions options = new ChromeOptions();
options.setExperimentalOption("prefs", chromePrefs);