In JSP you should have something like that:

<form method="post">
    <select name="taxiDropdown" id="taxiDropdown">
        <%
            List<TaxiInfo> eList = (List<TaxiInfo>) request.getAttribute("taxiInfo");
            for (TaxiInfo taxiInfo : eList) {
        %>
        <option name="<%=taxiInfo.getTaxiPlate()%>" value="<%=taxiInfo.getID()%>"><%=taxiInfo.getTaxiPlate()%></option>
        <%
            }
        %>
    </select>
    <input type="submit" />
</form>

Then in controller/servlet you will receive the id of TaxiInfo:

String val = request.getParameter("taxiDropdown");
System.out.println(val);

Or in your case you should set a hidden input with javascript with desired value.

added this code in html:

Move value of the dropdown selection to hidden textbox

<script type='text/javascript'>
    $(function() {
        $('#driverdp').change(function() { <-- this is my dropdown -->
            var x = $(this).val();
            $('#driverid').val(x); <-- this is my textbox -->
        });
    });
</script>

Servlet:
get the value of hidden text in servlet

String text= request.getParameter("driverId");

hope it will help someone

I have dropdown with options and the values. I can get the option value by the dropdown name in servlet but how can i get the dropdown “value” in servlet. In screenshot, temporarily i concatenated the with options but i want to store value in variable in servlet.
Please help:

HTML:

 <input type="text" name="taxiDropdown" id= "taxiDropdown" placeholder="Search taxi...">
                            </div>
                                <div class="scrolling menu">
                                    <%
                                        List eList = (ArrayList) session.getAttribute("taxiInfo");
                                    %>
                                    <%
                                        for (int i = 0; i < eList.size(); i++) {
                                    %>
                                    <div class="item" data-value="<%=((TaxiInfo) eList.get(i)).getID()%>">
                                        <div class="ui green empty circular label"></div>
                                        <%=((TaxiInfo) eList.get(i)).getTaxiPlate() +" "+ ((TaxiInfo) eList.get(i)).getID() %>

                                    </div>
                                    <%
                                        }
                                    %>
                                </div>
                            </div>

Servlet:

String val = request.getParameter("taxiDropdown");

(in “val”, I want to store the value of the dropdown not the option text)