[英]Can't get Selenium to find element
我想在yelp.com上找到一个元素。 我尝试过使用xPath
和ClassNames
但似乎无法检索每个业务的星级。
这是星级HTML:
<div class="i-stars i-stars--regular-4-half rating-large" title="4.5 star rating">
<img class="offscreen" height="303" src="https://s3-media1.fl.yelpcdn.com/assets/srv0/yelp_design_web/41341496d9db/assets/img/stars/stars.png" width="84" alt="4.5 star rating">
</div>
这是我的代码来检索评级:
var starRating = driverGC.FindElement(By.LinkText("title"));
MessageBox.Show(starRating.Text);
我希望它返回4.5
所以我可以将其保存到另一个文件。 我正在使用C#和Visual Studio。
如果你只有一个结果,我想你可以做到这一点。 或者,如果您需要查找特定评级,请根据需要进行自定义:
// The rating element
var starRating = driverGC.FindElement(By.ClassName("i-stars"));
// The title attribute on the rating element is something like '4.5 star rating'
// which I think is what you're trying to find.
MessageBox.Show(starRating.GetAttribute("title").Split(' ').First());
或者,如果您想循环遍历所有元素:
// The rating element
IList<IWebElement> starRatings = driverGC.FindElements(By.ClassName("i-stars"));
// The title attribute on the rating element is something like '4.5 star rating'
// which I think is what you're trying to find.
foreach (IWebElement elem in starRatings)
{
MessageBox.Show(elem.GetAttribute("title")Split(' ').First());
}
Split(' ').First()
First Split(' ').First()
应返回第一个单词,即4.5。 注意:您需要using System.Linq;
声明为了使用First()
,或者你最终使用ToList()
。
您可以找到并过滤此类业务(使用Java):
List<WebElement> starRatings = driver.findElements(By.xpath("//div[contains(@title, 'star rating')]"));
List<WebElement> businesses = driver.findElements(By.xpath("//div[contains(@title, 'star rating')]/preceding::a[1]/span"));
for(int i = 0; i < starRatings.size(); i++)
{
String rating = starRatings.get(i).getAttribute("title");
rating = rating.split(" ")[0];
DecimalFormat df = new DecimalFormat("#.#");
Double d = Double.valueOf(rating);
rating = df.format(d);
d = Double.valueOf(rating);
if(d <= 3)
{
String Businessname = businesses.get(i).getText();
//Write variable Businessname & rating into file
}
}
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