Time for action – using DataExporter to export data into XLS and PDF formats

Let us see how we can use various features of DataExporter, such as exporting a whole dataset, exporting the only current page, and excluding some columns:

1. Create a DataTable and a DataExporter component to export all the data, only page data, and register pre- and post-processors for XLS and PDF exporters:

   <p:dataTable id="usersTbl" var="user" value="#{adminController.users}" rowKey="#{user.id}"  paginator="true" rows="10">  
   
     <p:column headerText="Id"> 
       <f:facet name="header">  
         <h:outputText value="Id" />  
       </f:facet> 
       <h:outputText value="#{user.id}" />  
     </p:column>  
   
     <p:column>  
       <f:facet name="header">  
         <h:outputText value="Email" />  
       </f:facet>
       <h:outputText value="#{user.emailId}" />  
     </p:column>  
   
     <p:column exportable="false"> 
       <f:facet name="header">  
         &lt...