This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Be sure not to put any Java code in the JSP. In the controller, once you fetch and split the values into an array of strings, set that as a request scoped variable. In the JSP access that variable with the JSTL <c:forEach> tag to iterate over the string array and create the option elements.