使用java selenium从列表中随机选择项

Question

我有下面的代码片段

<div class="space-10"></div>
<form action="/book/index" method="post" class="form-inline" >
<div class="row no-margin no-padding">
<div class="form-group col-sm-3 col-xs-12 no-margin-padding">
   <select id="sport" name="sport" data-style="form-control">
      <option value="">Välj sport</option>
      <option value="1" 
         data-content="<i class='ma ma-Tennis'></i> Tennis">Tennis</option>
      <option value="2" 
         data-content="<i class='ma ma-Badminton'></i> Badminton">Badminton</option>
      <option value="3" 
         data-content="<i class='ma ma-Squash'></i> Squash">Squash</option>
      <option value="4" 
         data-content="<i class='ma ma-Bordtennis'></i> Bordtennis">Bordtennis</option>
      <option value="5" 
         data-content="<i class='ma ma-Padel'></i> Padel">Padel</option>
      <option value="6" 
         data-content="<i class='ma ma-Övrigt'></i> Övrigt">Övrigt</option>
      <option value="7" 
         data-content="<i class='ma ma-Pickleball'></i> Pickleball">Pickleball</option>
   </select>
</div>

我要从名单中随机选择一个项目。我已经尝试过所有可能的选择器，但是获取元素时没有发现错误。

Answer 1

我希望下面的代码能帮到你：

Select dropdown = new Select(driver.findElement(By.id("id")));

//Get all options
List<WebElement> dd = dropdown.getOptions();
int index = 0;//if list contains only one element it will take that element
if(dd.size()>1){
   //Get a random number between 1, size of dd
    random rand = new Random();
    index = rand.nextInt(dd.size()-1);
 }else if(dd.size()<1){
    //print error message
     int = -1;
 }
 if (index >= 0){
     dropdown.selectByIndex(index);
 }