how to assign arraylist to select option in jsp

Question

I have the list:

ArrayList list = new ArrayList();

I write this list select option:

<td>
    <select name="database1">
        <option value="" selected>select</option>
        <%
        for(int i=0;i<list.size();i++) {
            Field=list.get(i).toString();
        %>
        <option value="<%=Field %>"><%=Field %></option>
        <%} %>
    </select>
</td>

So my requirement is without using for loop. We directly write list in select option.

Sorter · Accepted Answer · 2020-07-29 04:31:18Z

9

It's not recommended to use java code inside jsp. You should try to avoid it.

The approach that needs to be followed in your case, is to first set the Arraylist as an attribute in the servlet that is calling the jsp page.

Servlet Code

ArrayList databaseArrayList = new ArrayList();
...
request.setAttribute("databaseList", databaseArrayList);

Then, in the JSP code, use jstl to iterate through the values of the list to populate the select options.

JSP Code

<select name="database1">
  <c:forEach items="${databaseList}" var="databaseValue">
    <option value="${databaseValue}">
        ${databaseValue}
    </option>
  </c:forEach>
</select>

I've written an article for looping over HashMap and ArrayList in JSP

edited Jul 29, 2020 at 4:31

answered Oct 10, 2013 at 11:01

Sorter

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5 Comments

m suresh Over a year ago

donot use any loop.how to write list to option directly

Sorter Over a year ago

You can directly write the values in the options. If values are few. list.get(i) way of doing it is not advisable, if the list is large or going to grow or shrink in future.

m suresh Over a year ago

this is ok na<td><select name="database1"> <option value="list.get(i)">list.get(i)</option> </select> </td>

Sorter Over a year ago

This will work. But If you are not using the for loop, you have to type all the indexes into list.get(). If you are using the loop to print list.get(i), why not go with the jstl for-each loop. It will make your code more readable.

dinigo Over a year ago

need to fix </c:forEach>

Skms · Accepted Answer · 2017-03-03 14:26:38Z

1

I guess You are doing great, just change your code like:- <option value="<%out.print(Field); %>"></option> Hope this works

answered Mar 3, 2017 at 14:26

Skms

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