java自动完成文本框第一选项选择

Question

我想选择自动完成文本框中显示的第一个选项。下面是我尝试过但没有得到所需输出的代码

代码：

public void clickSublink() throws IOException, InterruptedException {   
    System.setProperty("webdriver.chrome.driver","F:\\Amitha\\chromedriver.exe");
    WebDriver dr=new ChromeDriver();
    dr.get("http://demoqa.com/autocomplete/");
    dr.findElement(By.xpath("//input[@id='tags']")).sendKeys("b");
    dr.findElement(By.xpath("//ul[@id='ui-id-1']//child::li")).click();
}

Answer 1

如果只想选择第一个选项，可以在selenium中使用keys类。请在下面找到相同的代码

public void clickSublink() throws IOException, InterruptedException {   
System.setProperty("webdriver.chrome.driver","F:\\Amitha\\chromedriver.exe");
WebDriver dr=new ChromeDriver();
dr.get("http://demoqa.com/autocomplete/");
dr.findElement(By.xpath("//input[@id='tags']")).sendKeys("b");
dr.findElement(By.xpath("//input[@id='tags']")).sendKeys(Keys.DOWN, Keys.ENTER);}

Answer 2

另一种方法：

library (XML)
library(RCurl)
data=htmlParse("http://demoqa.com/autocomplete/")
result=xpathSApply(data,"normalize-space(substring-before(substring-after(//div[@class='demo-frame']//script[last()]/text(),'['),']'))")
reg=gsub('\"',"",result)
final=unlist(strsplit(reg,", "))

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