How to use requestScope to pass value from jsp to portlet - jstl

Question

I am trying to send some value in my jsp to a portlet class.I am using jstl to achieve that ,my requirement is to use requestScope to pass the value in the portlet.Here i have seen that when i am using requestScope to create URL in portlet it is working fine,but in case of value passing it is not working,i am posting my code what i have done so far
<fmt:setBundle basename="Language-ext"/>
<form action="<c:out value='${requestScope.registerUserActionUrl}'/>" method="POST">
<table width="200px">
<tr>
<td colspan="2">
<font color="#FF0000"><c:out
value="${requestScope.errorMsg}"/></font>
</td>
</tr>
<tr>
<td><fmt:message key="label.firstName"/></td>
<td><input type="text" name="firstName" value="${requestScope.User.firstName}"></input></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><fmt:message key="label.lastName"/></td>
<td><input type="text" name="lastName" value="${requestScope.User.lastName}"></input></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><font color="#FF0000"><b>*</b></font> <fmt:message key="label.email"/></td>
<td><input type="text" name="email" value="${requestScope.User.email}"></input> </td>
</tr>
<tr>
<td> </td>
</tr>
<tr align="center">
<td colspan="2">
<input type="submit"/>
<a href="<c:out value='${requestScope.resetRenderUrl}'/>">
<b><fmt:message key="label.reset"/></b>
</a>
</td>
</tr>
And this is my bean class
public class User implements Serializable{
/**
*
*/
private static final long serialVersionUID = -5729328658617182010L;
private String firstName;
private String lastName;
private String email;
public User(String firstName,String lastName,String email){
super();
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
And this is the portlet where i am catching the value
#ProcessAction(name = "registerUserAction")
public void registerUser(ActionRequest request, ActionResponse response)
throws PortletException, IOException {
String email = request.getParameter("email");
System.out.println("Email :"+email +","+request.getParameter("firstName"));
// --set the information entered by the user on the registration
But i am getting null for both email and firstName .Somebody please help

Answer 1

Answer relevant for Liferay 6.2
By default, Liferay 6.2 requires request parameters for a given portlet to be prefixed with the portlet namespace. In plain HTML, you need to specify the namespace for each request parameter / form field explicitely by using <portlet:namespace/> tag:
<input type="text" name="<portlet:namespace/>firstName" value="${requestScope.User.firstName}">
Don't forget the required TLD import:
<%#taglib prefix="portlet" uri="http://java.sun.com/portlet" %>
Only the namespaced parameters are visible to the portlet (through standard portlet API).