import org.openqa.selenium.By;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
 
 
/**
 * @author Lenovo
 */
public class SeleniumDemo {
    private final static String webDriver = "webdriver.chrome.driver";
    private final static String webDriverPath ="E:\\chromedriver\\chromedriver.exe";
 
    public static void main(String[] args) throws InterruptedException {
        System.setProperty(webDriver, webDriverPath);
        WebDriver driver= new ChromeDriver();
        //博客主頁
        driver.get("https://blog.csdn.net/weixin_40986713");
        WebElement element=driver.findElement(By.className("submit"));
        long start=System.currentTimeMillis();
        //等待5秒
        WebDriverWait shortWait = new WebDriverWait(driver, 5);
        //5秒內(nèi)元素加載出來就執(zhí)行點(diǎn)擊
        shortWait.until(ExpectedConditions.elementToBeClickable(element)).click();
        //忽略找不到元素異常
        shortWait.ignoring(NoSuchElementException.class);
        System.out.println("耗時(shí) "+(System.currentTimeMillis()-start)+" ms");
    }
}

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
 
import java.util.concurrent.TimeUnit;
 
/**
 * @author Lenovo
 */
public class SeleniumDemo {
    private final static String webDriver = "webdriver.chrome.driver";
    private final static String webDriverPath ="E:\\chromedriver\\chromedriver.exe";
 
    public static void main(String[] args) throws InterruptedException {
        System.setProperty(webDriver, webDriverPath);
        WebDriver driver= new ChromeDriver();
        //博客主頁
        driver.get("https://blog.csdn.net/weixin_40986713");
        //設(shè)置全局隱式等待
        driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
        long start=System.currentTimeMillis();
        try {
            driver.findElement(By.className("tarzan"));
        }catch (Exception e){
            System.out.println(e);
            System.out.println("耗時(shí) "+(System.currentTimeMillis()-start)+" ms");
        }
    }
}

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
 
 
/**
 * @author Lenovo
 */
public class SeleniumDemo {
    private final static String webDriver = "webdriver.chrome.driver";
    private final static String webDriverPath ="E:\\chromedriver\\chromedriver.exe";
 
    public static void main(String[] args) throws InterruptedException {
        System.setProperty(webDriver, webDriverPath);
        WebDriver driver= new ChromeDriver();
        //博客主頁
        driver.get("https://blog.csdn.net/weixin_40986713");
        long start=System.currentTimeMillis();
        //等待5s
        Thread.sleep(5000);
        try {
            driver.findElement(By.className("tarzan"));
        }catch (Exception e){
            System.out.println(e);
            System.out.println("耗時(shí) "+(System.currentTimeMillis()-start)+" ms");
        }
    }
}