How can I read from servlet form inputs with name="product[]"

Question

I have a form where the input's name are :

<form>
<div class="form-group" >
    <div class="col-md-1">                                      
        <input type="text"  class="form-control"  name="product[]"/>        
    </div>

    <div class="col-md-4">
        <input type="text" class="form-control" name="description[]"/>
    </div>
</div>

<div class="form-group" >
    <div class="col-md-1">                                      
        <input type="text"  class="form-control"  name="product[]"/>        
    </div>

    <div class="col-md-4">
        <input type="text" class="form-control" name="description[]"/>
    </div>
</div>

<div class="form-group" >
    <div class="col-md-1">                                      
        <input type="text"  class="form-control"  name="product[]"/>        
    </div>

    <div class="col-md-4">
        <input type="text" class="form-control" name="description[]"/>
    </div>
</div>
</form>

I am wondering if I can read these values from my servlet.. Is there a way to iterate through all the inputs product[] and description[]?

I tried String[] description = request.getParameterValues("description[]"); and

while(!StringUtils.isBlank(request.getParameter("description[]"))){
   String description = request.getParameter("description[]");
   System.out.println("desct = " + description);
}

but it didn't read the values..

The form has an add button so it creates similar inputs.. I was wondering if this works before I try to edit the add button function. — yaylitzis, Feb 22 '17 at 08:16
Because the name of the parameter isn't `description`, but `description[]`. I.e. you have to use `String[] description = request.getParameterValues("description[]");`. — Jozef Chocholacek, Feb 22 '17 at 08:26
@yaylitzis Just tested it locally, and works for me nicely. Are you sure you are calling the servlet? I don't see any `action` attribute in your form. — Jozef Chocholacek, Feb 22 '17 at 09:49
@JozefChocholacek Actually I had left the attribute `disabled` in the input that's why I didn't get the values.. — yaylitzis, Feb 22 '17 at 10:15

score 0 · Answer 1 · edited May 23 '17 at 12:00

0

Java Servlet - get parameters with same name

So String[] description = request.getParameterValues("description"); might work!? Without the [] in the name.

edited May 23 '17 at 12:00

Community

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answered Feb 22 '17 at 09:21

Jack Flamp

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score 0 · Accepted Answer · answered Feb 22 '17 at 18:44

After @JozefChocholacek comment I found where the problem was. There was the attribute disabled in the input form. I deleted and then the

while(!StringUtils.isBlank(request.getParameter("description[]"))){
   String description = request.getParameter("description[]");
   System.out.println("desct = " + description);
}

worked just fine.

score -1 · Answer 3 · edited Feb 22 '17 at 12:09

-1

As you have written name="description [ ]" so you should get the value/values by this name only.

So your statement should be:

String[] description = request.getParameterValues("description[ ]");

edited Feb 22 '17 at 12:09

Vinoth Krishnan

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answered Feb 22 '17 at 09:26

SUBHAM MOHAPATRA

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Please consider about formatting the answer while you post. – Vinoth Krishnan Feb 22 '17 at 12:10

How can I read from servlet form inputs with name="product[]"

3 Answers3