二， selenium3 java 小例子（本地模式）

按照网上的例子会遇到“The path to the driver executable must be set by the webdriver.gecko.driver system property” 这个错误， 下面是解决办法：

报这个错，是因为你使用了selenium3+Firefox。在selenium3中，使用Firefox，需要添加驱动。

您可以从Github上下载驱动程序下载网址-  

在代码中加入

System.setProperty("webdriver.gecko.driver","C:\\Program Files (x86)\\Mozilla Firefox\\geckodriver.exe");
WebDriver driver=new FirefoxDriver();

C:\\Program Files (x86)\\Mozilla Firefox\\geckodriver.exe是驱动放置的位置

package seleniumtest.seleniumtest;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxBinary;
import org.openqa.selenium.chrome.*;

/**
 * test Baidu By Id
 *
 */
public class testBaiduById
{
    public static void main( String[] args )
    {
        //System.setProperty("webdriver.firefox.marionette","C:\\Program Files (x86)\\Mozilla Firefox\\geckodriver.exe");
        System.setProperty("webdriver.gecko.driver","C:\\Program Files (x86)\\Mozilla Firefox\\geckodriver.exe");

        WebDriver driver = new FirefoxDriver();

        //System.setProperty("webdriver.chrome.driver","C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe");
        //WebDriver driver = new ChromeDriver();

        driver.get("");

        WebElement searchBox = driver.findElement(By.id("kw"));
        searchBox.sendKeys("test Baidu by Id");

        WebElement searchButton = driver.findElement(By.id("su"));
        searchButton.submit();

        driver.close();
    }
}