Java Selenium (vi) XPath positioning

What is XPath

XPath is the abbreviation for XML path, because the HTML document itself is a standard XML page, so we can use the XPath usage to locate page elements.

Disadvantages of XPath positioning

XPath's positioning method, Webdriver will scan all the elements of the entire page to locate the elements we need, this is a very time-consuming operation, if the script is a lot of using XPath to locate the element, the script will be executed a little bit slower

The testxpath.html code is as follows

Absolute path Positioning method
In the tested Web page, find the button in the first div tag
An XPath expression
/html/body/div/input[@value = "Query"]

Webelement button = driver.findelement (By.xpath ("/html/body/div/input[@value = ' query ']");
Using the browser debugging tool, you can get the XPath statement directly
Disadvantages of absolute paths
1. Once the page structure has changed, the path will be invalidated and must be restarted. So it is not recommended to use absolute path notation
The difference between an absolute path and a relative path
The absolute path begins with "/" and the XPath begins parsing from the root node of the document
The relative path begins with "//" and allows the XPath to begin parsing from any element node of the document
Relative path Positioning method
In the tested Web page, find the button in the first div tag
An XPath expression
input[@value = "Query"]

Webelement button = driver.findelement (By.xpath ("//input[@value = ' query ']");
Using index numbers to locate
In the tested Web page, find the query button in the second div tag
INPUT[2]

Webelement button = driver.findelement (By.xpath ("//input[2]"));
Using Page properties to navigate
Position the first picture element in the page being tested
img[@alt = ' div1-img1 ')

Webelement button = driver.findelement (By.xpath ("//img[@alt = ' div1-img1 ']");
Fuzzy positioning Starts-with Keywords
Find the image alt attribute start position contains the ' div1 ' keyword element
Img[starts-with (@alt, ' div ')]
Fuzzy positioning contains keywords
Find picture alt attribute contains the ' G1 ' keyword element
Img[contains (@alt, ' G1 ')]
Text () function to locate all text "Baidu search" elements
Driver.findelement (By.xpath ("//*[text () = ' Baidu search ']");
Find all hyperlinks with text "search"
Driver.findelement (By.xpath ("//a[contains (Text (), ' Search ')]);
Java Selenium (vi) XPath positioning