JMeter introduction practice ----- use of global variables and local variables

jmeter An introduction to the practice ------ Use of global and local variables

In order to improve the recording jmeter Script flexibility , You need to use some variables ; For example, in the request header or request body , It is convenient to modify the value .

1. Global variables

props.put(string,string)

props.get(string), The return value is string type , If you want to use its value instead of string Type , You can use functions ${__property( Property name ,,)}, See example

Be careful ： here property The first two _, It is easy to make a mistake _

In thread group A Set global variables in name, And let the test plan run each thread independently

  In thread group B Set custom local variables in name, The value is a non string form of the upper global variable

 

Pass local variables as parameters to the sampler

The parameter is thread group A The non string form of the global variable of

2. local variable

vars.put(string,string)

vars.get(string), Returns a string , If you want to get its non string form , use ${ Variable name }

summary : Global variables are available to all thread groups in a test plan , Local variables are used only by the current thread group , Other thread groups are not available