How to pass parameters to your webstart?

Add properties in the JNLP file itself, like so

<resources> 

<j2se version="1.7+" />  

... 

...  

<property name="prop1" value="value1"/> 

<property name="prop2" value="value2"/>  

</resources>

and then call it in your code, like so

System.getProperty("prop1");