#Apache jmeter passing different data for each request code
This will allow us to access the context held by our single thread that is running the HTTP request.įrom ctx, let's get the response code, response headers, and response body and extract these to our file:īuff.write("Response Code : " + ctx.getPreviousResult().getResponseCode()) īuff.write(System.getProperty("parator")) īuff.write("Response Headers : " + ctx.getPreviousResult().getResponseHeaders()) īuff.write("Response Body : " + new String(ctx.getPreviousResult().getResponseData())) Let's make use of the ctxvariable that is provided by JMeter. Next, we want to extract something more meaningful to our use case. This is very important when using multiple threads in JMeter. This must be set to true so that our BeanShell will append to the file instead of overwriting it. One important point to note here is the 2nd parameter of the FileWriter constructor. We now have a simple script that will output the string data to a file called result. Let's now add the following script to the Script section: FileWriter fWriter = new FileWriter("//result.txt", true) īufferedWriter buff = new BufferedWriter(fWriter) In this case, let's create a BeanShell post-processor and add a script to help us extract some data to a file:
_setProperty() gets the value from the RegEx variable and assigns it to a property variable which can be read by another thread group using _property().BeanShell can be used for a variety of different use cases. Properties are shared between all JMeter threads, so if one thread sets a property, another thread can read the updated value.
Refer to the below screenshot, ‘1’ is passed as a value of the ‘valueToPass’ variable coming from Thread Group 01. one at a time)’ option in ‘Test Plan’ so that value can be fetched by Thread Group 01 prior to the execution of Thread Group 02. Add a ‘BeanShell Assertion’ and write $ where you want to pass the value in the different Thread Group.īefore running the test make sure to checkmark ‘Run Thread Groups consecutively (i.e.Add a ‘ Regular Expression Extractor‘ post-processor as a child element of 1.1 HTTP Request (Fetcher) and fetch the value in a variable (say employeeID).Figure 01 Step to implement the logic for passing the variable value to another Thread Group: It means the value that comes in the response of 1.1 HTTP Request (Fetcher) will be passed in the request of 2.1 HTTP Request (Consumer). To make them more understandable, let’s call them fetcher and consumer.
Refer to the below figure (Figure 01) you can see 2 Thread GroupsĮach Thread Group has 1 request. The value comes in the response of the request of the First Thread Group needs to be passed in the Second Thread Group. Example:Ĭonsider, there are two thread groups. Hence this function solves the issue of Thread Group intercommunication. To handle this unique situation, JMeter has a function called _setProperty that helps to share the data (information) between thread groups. Sometime in JMeter, there is a requirement of passing the value of the variable from one Thread Group to another Thread Group especially when you test API. The child elements of these Thread Groups have limited scope and do not share any information outside the Thread Group scope. But these Thread Groups are independent of each other. Under a Test Plan, you can add multiple Thread Groups.
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