We can use this to match the exact pattern that we want to extract information from. To capture the ID of this person, let us first determine the pattern where we will find the person in the second row.Īs can be seen in the following snapshot, the ID of the second person is surrounded by and, and it is the second row of data having this pattern. In our test plan, we will select the person in the first row of the person table seen in the person list page above. The contents of html (index.html) are as follows deploying it on the tomcat server, this page would look like as shown in the following screenshot − This element extracts text from the current page using a Regular Expression to identify the text pattern that a desired element conforms with.įirst we write an HTML page which a list of people and their email IDs. Let us understand the use of Regular expressions in the Regular Expression Extractor-a Post-Processor Element by writing a test plan. ( and ) − these enclose the portion of the match string to be returned Suppose you want to match the following portion of a web-page −Īnd you want to extract readme.txt. Hence the 'alphabet' is "matched" by 'al.*t'. Matches means that the regular expression matched the whole target. It is worth stressing the difference between contains and matches, as used on the Response Assertion test element −Ĭontains means that the regular expression matched at least some part of the target, so 'alphabet' "contains" 'ph.b.' because the regular expression matches the substring 'phabe'. You can place regular expressions in any component in a Test Plan.
To use regular expressions in your test plan, you need to use the Regular Expression Extractor of JMeter. If the server returns a unique session key we can easily get it using expressions in our load script. A standard usage example of using expressions is to get a session ID from the server response. Regular expressions provide a simple method to get information from pages when it is impossible or very hard to predict an outcome. With the use of regular expressions, we can certainly save a lot of time and achieve greater flexibility as we create or enhance a Test Plan.
#Regex extractor online software#
JMeter interprets forms of regular expressions or patterns being used throughout a JMeter test plan, by including the pattern matching software Apache Jakarta ORO. Select the sum of the 'id' attributes of the 'singer' elements.Regular expressions are used to search and manipulate text, based on patterns. Select the local name of the first 'singer' element, i.e. Select the length of the first 'actor' element's textual value. Select the string representation value of the 'id' attribute of the first 'actor' element. Select the numeric value of the 'id' attribute of the first 'actor' element. Select the name of the first element in the document. Select all the 'actor' elements AND the 'singer' elements. Select all the children of the 'singers' node. Select all 'actor' nodes with the 'id' attribute value lower or equal to '3'.
Select the 'actor' element with the 'id' attribute value of '3'. Select all 'actor' elements that have an 'id' attribute. Select the first and second 'actor' elements using their position. Select the textual value of first 'actor' element. Select the 'id' attributes of the 'singer' elements regardless of their positions in the document. Select all 'singer' elements regardless of their positions in the document.
Select all 'actor' elements that are direct children of the 'actors' element. You can find more documentation on XPath expressions at
#Regex extractor online code#
#Regex extractor online generator#
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