Iterating List of Maps through c:foreach

[Kousik Majumder]

hi all,

I have a list of maps.
Now I want to iterate the list in jsp page where i will give the key hardcoded to the map so that it returns the value corresponding to key.

Can somebody tell me how can I do that?

 
Map<String,String> map = new HashMap<String,String>();
List<Map><String,String>> listOfMaps   = new ArrayList<Map><String,String>>();

  <c:forEach var="listOuter" items="${list}">
            <tr>
                <c:forEach var="listInner" items="${listOuter}">
                    <td>
                        [b]<c:out value="${listInner["KEY"]}"/>[/b]
                    </td>
                </c:forEach>
            </tr>
        </c:forEach>

The bolded portion written in code does not work in foreach I suppose.
Please suggest.


Thanks,
Kousik

[Vijitha Kumara]

List<Map><String,String>> listOfMaps   = new ArrayList<Map><String,String>>(); 

I guess this is a typo ?

List<Map<String,String>> listOfMaps   = new ArrayList<Map<String,String>>(); 

[Kousik Majumder]

yes,

That is a typing mistake.

  List<Map<String,String>> alResult = new ArrayList<Map<String,String>>();

[Chinmaya Chowdary]

Hi, Kousik. Use

   <c:out value="${listInner.key}"/>  

for getting keys.

Use

  <c:out value="${listInner.value}"/>   

for getting values.

[Kousik Majumder]

 <c:out value="${listInner.key}"/>  
<c:out value="${listInner.value}"/> 
 

this will give the keys and values respectively which I do not want. I want a value with a particular key which i will give from outside like I showed before/below.
How can I do that?

 <c:out value="${listInner["MYKEY"]}"/>   

Thanks,
Kousik

[Chinmaya Chowdary]

Try this,

   <c:forEach var="listOuter" items="${list}">  
 <c:out value="${listOuter[KEY]}" />
         </c:forEach>  

Here the KEY is name of the attribute and the value must be your HashMap key. For example, pageContext.setAttribute("KEY","java"); Here "java" must be your HashMap key.