drop down list doPost() servlet

[Sakai Bah]

Can someone assist me HOW to invoke drop down menu list in doPost() servlet?
Upon selecting and clicking a submit button, the doPost will be invoked, and will appear.

Let say we have this code in eg;
===============================================================================================

index.jsp

<td>
          <select name="Feedback" multiple="multiple">
          <option> "Poor"</option>
          <option>"Good"</option>
          <option>"Very Good"</option>
          <option>"Excellent"</option>
          </select>
 </td>

Feedback.java

protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);

        response.setContentType("text/html");
        PrintWriter pw = response.getWriter();

       String feedback = request.getParameter("feedback");
      
       pw.println("Feedback: " + feedback);

===============================================================================================

I tried using reqest.getParameters but it gives me null as displayed.
How can i have the selected value (Or even multiply values) still displayed?

Thanks and regards
Sakai

[Bear Bibeault]

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[Aditya Keyal]

You want to get the multiple values of the drop down if I gather rightly from your post. For that use request. getParameterValues() to get all the selected values. The return type of the getParameterValues() is a String array.

[swapnl patil]

Your drop down list is single select list or multiple select list ?

[Mohammed Yousuff]

below is what you expect

         response.setContentType("text/html");  
         PrintWriter pw = response.getWriter();  
   
         String[] feedback = request.getParameterValues(feedback);
        
         //loop it here using the while and print it 

         pw.println("Feedback: " + feedback);  

when multiple values are selected then HTML will send all the selected value with the same NAME, so you will get all the element which are selected...

Hope this may helped you ;)

[Aditya Keyal]

One more small point that even I had overlooked. HTML and request parameters are case-sensitive. Your JSP reads Feedback whereas you are retrieving feedback. That is the reason why you are getting null value.

Other than that use the code mentioned above by Yousuf (with the case sensitive factor taken into consideration) and it should work.

    response.setContentType("text/html");    
          PrintWriter pw = response.getWriter();    
      
          String[] feedback = request.getParameterValues("Feedback");  
           
          //loop it here using the while and print it   
   
          pw.println("Feedback: " + feedback);     

[Mohammed Yousuff]

thats right Aditya ;)

[Sakai Bah]

Thanks guys, I've sort it out.