Correlating the session ID
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,
