Primefaces Data Exporter : Exporting data issue - primefaces

Question

I have an List of List. lets say student and address. one to many relationship. In my data table there are 3 columns for the Name, Surname, Age related to the Student and In a single column I need to show address with concatenating the following fields like, address1, address2, city, country.Now I need to export this table by using <p:dataExporter>. When I try to export as Excel the corresponding column of Address is exported as Object (org.primefaces.uirepeat. blah blah..)
My code is
<p:dataTable value="#{manager.studentList}" var="item" id="studentData">
<p:column>
<f:facet name="header">Name</f:facet>
<h:outputText value="#{item.name}" />
</p:column>
<p:column>
<f:facet name="header">Surname</f:facet>
<h:outputText value="#{item.surname}" />
</p:column>
<p:column>
<f:facet name="header">Age</f:facet>
<h:outputText value="#{item.age}" />
</p:column>
<p:column>
<f:facet name="header">Address</f:facet>
<ui:repeat value="#{studentBean.addressList}" var="address">
<h:outputText value="#{address.address1}" /> <br />
<h:outputText value="#{address.address2}" /> <br />
<h:outputText value="#{address.city}" /> <br />
<h:outputText value="#{address.country}" />
</ui:repeat>
</p:column>
</p:dataTable>
<h:commandLink>
<p:graphicImage name="/images/excel.png" />
<p:dataExporter type="xls" target="studentData" fileName="studentdetails" pageOnly="true"/>
</h:commandLink>
Suggest me some way to export. even I tried with c:forEach and columns.

Answer 1

<p:dataTable value="#{manager.studentList}" rowIndexVar="index" var="item" id="studentData">
<p:column>
<f:facet name="header">Name</f:facet>
<h:outputText value="#{item.name}" />
</p:column>
<p:column>
<f:facet name="header">Surname</f:facet>
<h:outputText value="#{item.surname}" />
</p:column>
<p:column>
<f:facet name="header">Age</f:facet>
<h:outputText value="#{item.age}" />
</p:column>
<p:column>
<f:facet name="header">Address</f:facet>
<c:forEach var="address" items="#{studentBean.addressList.get(index).address}">
<h:outputText value="#{address.address1}" />,
<h:outputText value="#{address.address2}"/>,
<h:outputText value="#{address.city}" />,
<h:outputText value="#{address.country}" />
</c:forEach>
</p:column>
</p:dataTable>
<h:commandLink>
<p:graphicImage name="/images/excel.png" />
<p:dataExporter type="xls" target="studentData" fileName="studentdetails" pageOnly="true"/>
</h:commandLink>
i trying with c:forEach is ok