How to get random row from file in JMeter

Question

I'm looking for way how to get random row from file in JMeter. I would be appreciate for any suggestions.

Answer 1

Not sure regarding groovy, maybe there is an easier way, but for instance you can do it with Beanshell Sampler using the following code:

import org.apache.commons.io.FileUtils; //necessary import

List lines = FileUtils.readLines(new File("/path/to/your/file"));  // read file into lines array   
int random = new Random().nextInt(lines.size()); // get random line number
String randomLine = lines.get(random); // get random line

vars.put("randomLine", randomLine); // store the random line into ${randomLine} variable

• substitute /path/to/your/file with relative or absolute path to the file you want the random line from
• you will be able to access the random line as ${randomLine} where required

See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information on using JMeter and Java APIs from Beanshell test elements in your JMeter test

N.B. The above code is valid groovy code as well