send keys模拟按键输入
场景
sendKeys方法可以模拟一些组合键操作，比如ctrl+a等。另外有时候我们需要在测试时使用tab键将焦点转移到下一个元素，这时候也需要sendKeys。在某些更复杂的情况下，还会出现使用sendKeys来模拟上下键来操作下拉列表的情况。
代码
下面的代码演示了如何将A多行文本框中的内容清空并复制到B文本框中。
send_keys.html
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>send keys</title>
<script type="text/javascript" async="" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" />
</head>
<body>
<h3>send keys</h3>
<div class="row-fluid">
<div class="span3">
<div class="well">
<label>A</label>
<textarea rows="10", cols="10" id="A">I think watir-webdriver is better than selenium-webdriver</textarea>
</div>
</div>
<div class="span3">
<div class="well">
<label>B</label>
<textarea rows="10", cols="10" id="B"></textarea>
</div>
</div>
</div>
</body>
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
</html>
send_keys.java
import java.io.File;
import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class SendKeys {
public static void main(String[] args) throws InterruptedException {
WebDriver dr = new ChromeDriver();
File file = new File("src/send_keys.html");
String filePath = "file:///" + file.getAbsolutePath();
System.out.printf("now accesss %s \n", filePath);
dr.get(filePath);
Thread.sleep(1000);
// copy content of A
dr.findElement(By.id("A")).sendKeys(Keys.chord(Keys.CONTROL + "a"));
Thread.sleep(1000);
dr.findElement(By.id("A")).sendKeys(Keys.chord(Keys.CONTROL + "x"));
// paste to B
dr.findElement(By.id("B")).sendKeys(Keys.chord(Keys.CONTROL + "v"));
// SendKeys to A
dr.findElement(By.id("A")).sendKeys(Keys.chord("watir webdriver is better than selenium webdriver"));
Thread.sleep(1000);
System.out.println("browser will be close");
dr.quit();
}
}