Java Selenium XPath Localization implementation method _java

XPath's positioning method, very powerful. Using this method, you can almost navigate to any element on the page.

Reading Table of Contents

1. What is XPath
2. Disadvantages of XPath positioning
3. The testxpath.html code is as follows
4. Absolute path Positioning method
5. Using the browser debugging tool, you can get the XPath statement directly
6. Disadvantages of absolute paths
7. The difference between absolute and relative paths
8. Relative path Positioning method
9. Use index number to locate
10. Use Page properties to locate
11. Fuzzy positioning Starts-with Keywords
12. Fuzzy positioning contains keywords
13. Text () function textual 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 XPath to locate page elements.

Disadvantages of XPath positioning

XPath this way of positioning, Webdriver will scan all the elements of the entire page to locate the elements we need, which is a very time-consuming operation, if the script in a large number of XPath to do element positioning, the script can perform slightly 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 expression of an XPath

/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 is also invalidated, and must be renewed. So it's not recommended to use absolute paths.

The difference between absolute and relative paths

Absolute path begins with "/", allowing XPath to start parsing from the root node of the document

The relative path starts with "//" and lets XPath parse from any element node in the document

Relative path Positioning method

In the tested Web page, find the button in the first div tag

An expression of an XPath

input[@value = "Query"]

webelement button = driver.findelement (By.xpath ("//input[@value = ' query ')");

Use index number to locate

In the tested Web page, look for the query button in the second div tag

INPUT[2] 

webelement button = driver.findelement (By.xpath ("//input[2]"));

Use Page properties to locate

Locate 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 pictures alt attribute start position contains elements of ' DIV1 ' keyword

Imag[starts-with (@alt, ' div ')]

Fuzzy positioning contains keywords

Find Pictures Alt property contains elements of ' G1 ' keyword

Imag[contains (@alt, ' G1 ')]

Text () function textual positioning

Find all elements of the text as "Baidu search"

Driver.findelement (By.xpath ("//*[text () = ' Baidu search ')");

Find hyperlinks to search for all text

Driver.findelement (By.xpath ("//a[contains (Text (), ' Search ')"));

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