Multi-Variable Input Parameter

Here is a great guide on how to make a multi-select parameter in Jaspersoft: http://www.rajeshsirsikar.com/creating-a-multi-select-parameter-in-jaspersoft-studio/

This will work perfectly fine on Jaspersoft Studio but when it is uploaded to the Jasper Server there are adjustments to be made.

Step 1. Right click the report on Jasper Server that contains this parameter. Then click Edit. On the Left, click on Controls & Resources.

Step 2. Click on your parameter in the list. If you keep clicking Next at the bottom you will eventually get to a page where you can enter values for the parameter to be selected when the report runs. There is also a way to pull the data from a repository.