CSS/jQuery Extractor usage

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CSS/jQuery Extractor usage:

JMeter offers CSS/jQuery Extractor that allows you to extract server responses using a CSS/jQuery-like syntax.
In this example, let us see how to use the CSS/jQuery Extractor component to extract information from server responses.
Steps:
  1. Launch JMeter.
  2. Create a Simple Testplan as below:



3.    Add Thread Group, then HTTP Request
  1. Add CSS/JQuery Expression Extractor by navigating to Request | Add | Post Processor | CSS/JQuery Extractor.
  2. Fill in the values as follows:

The Response data for the HTTP Request have the below:
<div class='entry'>
        <h3>Must be heavy baby. This and that...</h3>
        <p>Thoughts on Scala</p>
        <p>Posted by tom</p>
      </div>
      <div class='entry'>
        <h3>Lorem ipsum dolor sit amet</h3>
        <p>Another Post</p>
        <p>Posted by jim</p>
      </div>
      And so on.
Using CSS/JQuery we will capture text with <h3> tag
6.    Save and run the script.
  1. Open Debug Sampler and check whether the expression matches the intended query. This is shown in the following screenshot:


Note: Compared to Regular Expression Extractor, CSS/jQuery Extractor is resource-intensive as it does a complete HTML parse of the document to perform its work. Prefer Regular Expression Extractor.

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