当我运行以下程序时...
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.By;
import java.util.*;
class GoogleSearch {
static WebDriver driver = new FirefoxDriver();
static ArrayList<String> hitUrls = new ArrayList<String>();
public static void main(String[] args) throws InterruptedException {
try {
driver.get("http://www.google.co.uk/");
submitSearch("selenium");
loopHits();
}
finally {
driver.close();
}
}
static void submitSearch(String search) throws InterruptedException {
WebElement searchBox = driver.findElement(By.name("q"));
searchBox.sendKeys(search);
searchBox.submit();
Thread.sleep(1000);
}
static void loopHits() {
List<WebElement> hits = driver.findElements(By.xpath("//h3/a"));
for (WebElement element: hits) {
hitUrls.add(element.getAttribute("href"));
}
long time1 = System.currentTimeMillis();
for (String url: hitUrls) {
System.out.println(url);
driver.navigate().to(url);
System.out.println(System.currentTimeMillis() - time1);
}
}
}
我将以下内容打印到控制台:
http://www.seleniumhq.org/
1136
https://ods.od.nih.gov/factsheets/Selenium-HealthProfessional/
3476
http://www.webmd.com/vitamins-and-supplements/lifestyle-guide-11/supplement-guide-selenium
6468
https://en.wikipedia.org/wiki/Selenium
6515
http://www.whfoods.com/genpage.php?dbid=95&tname=nutrient
6550
http://www.dailymail.co.uk/health/article-5009/How-diseases-selenium-beat.html
6574
http://www.webmd.boots.com/vitamins-and-minerals/selenium
6592
https://github.com/SeleniumHQ/selenium
6623
http://lpi.oregonstate.edu/mic/minerals/selenium
6645
https://seleniumhq.wordpress.com/
6671
为什么程序要等待前三页加载，而不等待其余页面加载？
最佳答案
驱动程序没有等待，因为您没有给它等待的理由。
要让它等待每个页面加载，您需要模拟一些操作(例如在页面上查找某些内容)
这可以通过询问每个页面的来源来完成:
例如，您可以在 loopHits() 方法中获取页面源代码:
static void loopHits()
{
List<WebElement> hits = driver.findElements(By.xpath("//h3/a"));
for (WebElement element : hits)
{
hitUrls.add(element.getAttribute("href"));
}
long time1 = System.currentTimeMillis();
for (String url : hitUrls)
{
System.out.println(url);
driver.navigate().to(url);
// ask for the page source...
driver.getPageSource();
System.out.println(System.currentTimeMillis() - time1);
}
}
在我的机器上运行，我可以看到时间差异如下所示:
http://www.seleniumhq.org/ 1573 https://ods.od.nih.gov/factsheets/Selenium-HealthProfessional/ 5173 http://www.webmd.com/vitamins-and-supplements/lifestyle-guide-11/supplement-guide-selenium 10824 https://en.wikipedia.org/wiki/Selenium 12613 http://www.whfoods.com/genpage.php?dbid=95&tname=nutrient 14239 http://www.webmd.boots.com/vitamins-and-minerals/selenium 16065 http://www.dailymail.co.uk/health/article-5009/How-diseases-selenium-beat.html 23928 https://github.com/SeleniumHQ/selenium 26697 https://seleniumhq.wordpress.com/ 29079 http://lpi.oregonstate.edu/mic/minerals/selenium 33409 https://www.google.co.uk/aclk?sa=l&ai=CCSnbNaVEV4e-DZKDpgO6hoyoDc279rVE57yLrG_K9PgECAMQAWDJBqABlfnw9QPIAQGqBCVP0IoUF49U6i-W-LSbFn4urqTiQ8cVwVGqxLuw9CLUSmLBJaUzgAfTho8KkAcDqAemvhvYBwE&sig=AOD64_3aOSd8gM4Vt4iAkp8jHXbgzAv7JQ&clui=0&q=&ved=0ahUKEwiB5_mOs_PMAhUDeFIKHTtiDG0Q0QwIfA&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700001249650557%26ds_s_kwgid%3D58700000142442718%26%26ds_e_adid%3D29839647511%26ds_e_matchtype%3Dsearch%26ds_e_device%3Dc%26ds_e_network%3Dg%26%26ds_url_v%3D2%26ds_dest_url%3Dhttp://www.puritan.com/selenium-078%3Fscid%3D6831%26cmp%3Dgoo-_-MineralSelenium-_-selenium 41033 http://www.puritan.com/selenium-078?scid=6831&cmp=goo-_-MineralSelenium-_-selenium100mg 43442
关于java - 为什么 org.openqa.selenium.firefox.FirefoxDriver.navigate().to() 在前三个循环后不等待？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37421620/