To correlate the session ID, you can use the following
-
a Regular Expression Extractor that saves the session ID into a local variable
-
a BeanShell Sampler that calls the "setProperty" function to set the local variable as a global property, so that it can be shared in all thread groups
In the case of PowerServer, the CreateSession request creates the session ID, therefore, you add a Regular Expression Extractor to the CreateSession request to get and save the session ID into a local variable.
To add a Regular Expression Extractor, right click on the CreateSession request and then select Add > Post Processors > Regular Expression Extractor.
Specify the Regular Expression Extractor like this.
-
Name of created variable: "session" or any name you prefer
-
Regular Expression: "sessionid":"(.+?)"
-
Template: $1$
-
Match No.: 1
The session ID will be saved to the "session"
variable. You can invoke the local variable by typing
${session} in the requests (bodies and headers).
If you want to make the "session" variable a
global property that can be accessed by all threads and thread
groups, you can add a BeanShell
Sampler or BeanShell
PostProcessor to call the JMeter "setProperty" function.
The "setProperty" function will set the "session"
variable as a global property. the section called “Modifying the scripts” has instructions for how to add a
BeanShell PostProcessor. This
section will show how to add a BeanShell
Sampler.
To add a BeanShell Sampler, right click on setUp Thread Group, and then select Add > Sampler > BeanShell Sampler.
-
Use the default name or input any name you prefer.
-
Input the following script:
${__setProperty(session,${session},)}
The "session" variable can be accessed as a
JMeter global property.
Use the Search menu to search
for all occurrences of "session" in all thread groups, and replace
the static value of session ID with the global property
${__property(session,,)}.
For example,
