I use jMeter 5.5-Snapshot 3a74a92. I need to use result of previous Regular Expression Extractor stored in variable in next Regular Expression Extractor when both Regular Expression Extractors are under same HTTP Request.
The example of fixed regexp that matches the result is:
<input type=\\"hidden\\" id=\\"def_SomeString\\" value=\\"(.*?)\\"/>
but 'SomeString' is something that is matched by previous Regular Expression Extractor and I have to use variable here. After several tries and analyzing debug output (that can be enabled by putting focus on Regular Expression Extractor then About->Enable Debug, do not forget to disable it later) I found that below regexp properly interprets variable and substitutes it:
<input type=\\\\"hidden\\\\" id=\\\\"def_${myVar}\\\\" value=\\\\"(.*?)\\\\"/>
Why in second expression with variable used all backslashes must be extra escaped in such weird way to match? Looks like using variable requires to use '\\\\"' to match '\"' which is unclear for me. Where in the documentation description of such usage can be found? I can't see anything about it there.
I don't think you need to have these extra escape backslashes in the 2nd regular expression.
I also don't think that using regular expressions for parsing HTML is a good idea, consider using CSS Selector Extractor instead.
Related
I need to extract the string to the right of the equal sign character in an Apache Jmeter project. I am not familiar with Regular Expression syntax at all, but I think this would be the easiest way to extract it. The url is: https://myserver.com:portnum/im;jsessionid=48E10C95151BFB84D795C90FBC31E8E6
I only need the string to the right of the equal sign, not including the equal sign. My question is, what regular expression should I use to extract the string? Thanks!
It is as simple as =(\w+)
Demo:
References:
JMeter - Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet
Also be aware that there are "smarter" ways of handling JSESSIONID:
In case if it comes as a Cookie you can get its value via HTTP Cookie Manager
If it is being passed as an URL parameter you could use HTTP URL Re-writing Modifier
I'm trying to extract a request ID for running load testing on J Meter that I need to use for the subsequent HTTP requests. I'm using the regular expression extractor to do this.
I've been trying for hours and hours to extract the value inside single quotations and have not had any success. The response looks similar to this.
RequestDateTime='2/12/2017 7:19:49 AM' RequestID='1234567' Client="14232" etc...
I want the exact numbers with no quotations around it. The value should be 1234567
I've tried using RequestID='(.*?)' but it gives the entire string whereas I just want the value inside.
Use regular expression RequestID='(\d+)
Template $1$
Match 1
Looking into "RegExp" Tester mode of the View Results Tree listener your regular expression itself is fine:
So my expectation is that your Regular Expression Extractor configuration is not correct, you should get expected value if use something like:
Reference Name: anything meaningful, i.e. RequestID
Regular Expression: RequestID='(.*?)'
Template: $1$
You should be able to refer the extracted value as ${RequestID} later on. Extracted JMeter Variable(s) can be visualised using Debug Sampler
See How to Debug your Apache JMeter Script article to learn more about JMeter tests troubleshooting techniques.
So the following regular expression should do the trick: '(\d*)'
Then Insert a Debug Sampler into your thread so you can see the reference name. The variable you are looking for will have the following name: referencename_g0
The _g0 represents the first group that was matched. If the expression matches other chars in your response, simply use the variable with the correct group number. (e.g _g1 or _g2, etc).
Hope this helps!
As I am new in using jmeter I'm stuck to write regular expression for this expression:
/catalog/search_display?category_id=9">Parts</a>
Can somebody help me out.
/catalog/search_display\?category_id=9">Parts</a>
Is that what you need? The question mark needs to be escaped, I don't see anything else noteworthy about it. The JMeter regexes are not enclosed in // and thus the slash is not a special character.
What do you want to extract? I assume that it is 9 (category_id). In that case regular expression extractor configuration should look like:
Reference Name: anything meaningful, i.e. id
Regular Expression: <a href="/catalog/search_display\?category_id=(.+?)"
Template: $1$
Refer extracted value as ${id} where required.
Mention that question mark needs to be escaped by a back slash as it is reserved character in regular expressions.
See Regular Expressions chapter of JMeter's User Manual for Perl5-style regex syntax and examples.
Also be aware that it isn't very recommended to parse HTML using regular expressions and it might be better to use the following post processors instead:
CSS/JQuery Extractor
XPath Extractor
I am trying to replace the contents of a string which contains xml tags as follows
I want to replace the entirety of the below statement, where ABCDEF could be any random value
<originalFileName>ABCDEF</originalFileName>
How would I do this?
Solution
You can try this for your purpose:
(<originalFileName>[\w]*</originalFileName>)
Not recommended
However, note that it is not recommended.
Regular expressions are a tool that is insufficient to understand the constructs employed by XML/HTML/XHTML. XML/HTML/XHTML is not a regular language and hence cannot be parsed by regular expressions. Regex queries are not equipped to break down XML/HTML/XHTML into its meaningful parts. Even enhanced irregular regular expressions as used by Perl are not up to the task of parsing XML/HTML/XHTML.XML/HTML/XHTML is a language of sufficient complexity that it cannot be parsed by regular expressions.
Further details : RegEx match open tags except XHTML self-contained tags
This could help you:
EDITED (this new one will also accept non-characters between your tags and I have scaped the / symbol which can give some errors if not):
(<originalFileName>.*<\/originalFileName>)
Check it here.
I'm tring to use the {{PAGENAME}} magic word in a regular expression to include an article based on the value of a parameter passed to a template. When I use the following statement with the article name hard-coded it correctly selects the articles I want:
includematch = /reportType\s*=\s*AccountReport/s
However, when I transclude the DPL into the AccountReport article, the following doesn't work:
includematch = /reportType\s*=\s*{{PAGENAME}}/s
Does anyone know what I'm doing wrong? Is {{PAGENAME}} being parsed before being used in the regular expression or is it trying to match the literal string?
I was using the DPL tag <dpl> but it wasn't parsing {{PAGENAME}} before applying the regular expression. When I changed it to use the parser function {{#dpl: then {{PAGENAME}} was evaluated and used within the regular expression as I required.
The way the dpl code is read makes it impossible for it to read the magic word. Use the dpl extension instead:
{{#dpl|code goes here}}