RomZes13 RomZes13 - 1 month ago 7
HTML Question

How to choose a value of a HashMap in select Struts2?

I ran into a problem with Struts2. I have a

HashMap<String, Integer>
that I use in a form with a select to choose name and corresponding id to that name.

HashMap
iterates and populates my
<select>
list with names. I only need an id to pick. How do I pick an id/value instead of a name/key?

companyMap is a
HashMap
, where
<String, Integer>
or key, value.

companyName
is a String.

<s:select label="Pick the company name"
headerKey="-1" headerValue="Select Company name"
list="companyMap.keys"
name = "companyName"
/>

Answer

If the list is a Map (key, value), the Map key will become the option 'value' parameter and the Map value will become the option body.

But you need to change this rule

<s:select label="Pick the company name" 
    headerKey="-1" headerValue="Select Company name"
    list="%{companyMap.entrySet()}" 
    name = "companyId"
    listKey="value"
    listValue="key"
/>