如何使用Java使用Selenium Webdriver在此html中获取标记值？

Question

How can the Webdriver xpath function be used to get the tag value in the snippets below? The Java code is not working as expected.

Here is the HTML:

<p class="fontlarg">
    QC_NUM：<b>8300</b>
    </code>
</p>

Here is the Java code:

String valueOfbTag = driver.findElement(By.xpath("/p[1]/b[1]")).getText();

Answer 1

What you are using is an absolute xpath /p[1]/b[1] is expecting the root element in your xhtml to be p where I expect that you have html as your root element.

To solve this you can make it relative //p[1]/b[1] this will find all p elements in your tree and then find the first b element inside the first p element.

Te make this more specific you can select only the p elements with the correct class //p[@class='fontlarg'][1]/b[1] .