Transform WSDLtoJava in Spring boot and JSP

Question

I have a JSP page and a Spring boot controller, in the jsp i have a form with a select and options when i choose the option i need to pass that value to a java code to transform WSDL to java classes. How can i do it?

<form id="form" action="genclasses" method="post">
        <select name="WSDLcat" class="custom-select ml-2" id="inputGroupSelect04">
            <%
            ServiceClass[] services = (ServiceClass[]) request.getAttribute("services");
            %>

            <c:forEach items="${services}" var="service">
                <option id="WSDL" value="${service.getWsdl()}">
                    ${service.getNombre()}</option>
            </c:forEach>
        </select>
        <input class="btn btn-outline-secondary align-right" id="genclases" type="submit" onclick="generarClases()" value="Generar Clases">
</form>

    

String[] params= {"-d","./src/main/resources/generatedFiles","HERE I NEED THE VALUE OF THE OPTION"};
    WSDLToJava.main(params);
    
    ZipUtil.pack(new File("./src/main/resources/generatedFiles"), new File("./src/main/resources/generated.zip"));

I cannot do it in java inserted in jsp becasuse i need to use different libraries and i do not know how to pass it to the controller or do it in the same page. Any help?