Selenium WebDriver Code

Selenium WebDriver 用于模拟浏览器的功能，可以做网站测试用，也可以用来做crawler。我是用eclipse开发的，导入selenium-server-standalone-***.jar（Right click project -->Properties --> Java Buid Path --> Libraries --> Add External Jar...）。这个包可以在Selenium官网下载。

下面的代码是简单的跟一个网站做交互：

 public class IndeedJobSearch {

     public static void main(String[] args) throws InterruptedException {
         // TODO Auto-generated method stub

         //Create firefox driver to drive the browser
             //File pathBinary = new File("D:\\Programes\\tools\\FireFox\\firefox.exe");
             //FirefoxBinary Binary = new FirefoxBinary(pathBinary);
             //FirefoxProfile firefoxPro = new FirefoxProfile();
             //WebDriver driver = new FirefoxDriver(Binary, firefoxPro);
         //ChromeDriver or ie
         System.setProperty("webdriver.chrome.driver",//webdriver.ie.driver
                 "D:\\Projects\\JavaWorkspace\\ThirdPartyLibs\\WebDriver\\chromedriver.exe");//IEDriverServer.exe
         WebDriver driver = new ChromeDriver(); //InternetExplorerDriver

         //Open Indeed home page
         driver.get("http://www.indeed.hk/");
         //Find what field and enter Selenium
         Thread.sleep(2000);
         driver.findElement(By.id("what")).sendKeys("Selenium");  //"findElements" will return all
         //Find location field and enter London
         driver.findElement(By.id("where")).clear();
         Thread.sleep(2000);
         driver.findElement(By.id("where")).sendKeys("Hong Kong");
         //Find FindJobs button and click on it
         Thread.sleep(2000);
         driver.findElement(By.id("fj")).click();
         //From job search results page, get page title and jobs count message

         System.out.println(driver.getTitle());
         System.out.println(driver.findElement(By.id("searchCount")).getText());

         driver.close();
     }

 }

IndeedJobSearch.java

要抓数据就要用方法来定位数据，下面是普遍用到的数据定位方法：

 public class LocatingStrategies {

     public static void main(String[] args) throws InterruptedException {
         // TODO Auto-generated method stub

         //Create firefox driver to drive the browser
             File pathBinary = new File("D:\\Programes\\tools\\FireFox\\firefox.exe");
             FirefoxBinary Binary = new FirefoxBinary(pathBinary);
             FirefoxProfile firefoxPro = new FirefoxProfile();
             WebDriver driver = new FirefoxDriver(Binary, firefoxPro);

         //Open Indeed home page
         driver.get("http://www.indeed.hk/");

         //Locating by ID
         //driver.findElement(By.id("what")).sendKeys("Selenium");  //"findElements" will return all

         //Locating by name
         //driver.findElement(By.name("q")).sendKeys("Selenium");

         //Locating by LinkText
         //driver.findElement(By.linkText("建立個人檔案")).click();

         //Locating by partialLinkText
         //driver.findElement(By.partialLinkText("招聘廣告")).click();

         //Locating by Xpath By.xpath("//input[@placeholder='email']")).sendKeys("User NAme");
 //        System.out.println(
 //
 //                driver.findElement(By.xpath("//img[@title='Indeed 香港']"))
 //                .getAttribute("src")
 //
 //                );

         //Locating by CssSelector By.cssSelector("css=input.input_submit")).click();
         //driver.findElement(By.cssSelector("input.input_submit")).click();

         //Locating by Tagname
         System.out.println(

                 driver.findElements(By.tagName("a")).size()

                 );

         //Locating by ClassName
         System.out.println(

                 driver.findElements(By.className("input_text")).size()

                 );
         driver.findElement(By.className("input_text")).sendKeys("Selenium");
     }

 }

LocatingStrategies.java

对javacript的popups： alert, prompt, confirm box的交互处理：

 public class JavaScriptPopups {

     public static void main(String[] args) throws InterruptedException {
         System.setProperty("webdriver.chrome.driver",
                 "D:\\Projects\\JavaWorkspace\\ThirdPartyLibs\\WebDriver\\chromedriver.exe");//IEDriverServer.exe
         WebDriver driver = new ChromeDriver();

         driver.get("http://test1.absofttrainings.com/javascript-alert-confirm-prompt-boxes/");
         System.out.println(

                 driver.findElements(By.className("headerText")).size()

                 );
         //Thread.sleep(6000);
         driver.findElement(By.xpath("//button[text()='Display Alert Box']")).click();

         Alert alert = driver.switchTo().alert();
         System.out.println(
                 "Alert text: " + alert.getText()
                 );
         Thread.sleep(2000);
         alert.accept();
         driver.switchTo().defaultContent();
         System.out.println(driver.findElement(By.id("confirm")).getText()
                 );
         driver.findElement(By.id("prompt")).click();
         alert = driver.switchTo().alert();
         Thread.sleep(3000);
         alert.sendKeys("Bruce");
         Thread.sleep(3000);
         alert.accept();
         driver.switchTo().defaultContent();

     }
 }

JavaScriptPopups.java