Combo-box not displaying in JSP

[Sachin Negi]

Hello to all the ranchers n greenhorns like me.. i am making a form in Struts2 that takes values from database..and i am having problem in combo-box..
here's the content of mu project that is related to the current problem ...

stuts.xml :

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 
2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>

<constant name="struts.devMode" value="true"></constant>

<package name="Basic" extends="struts-default" namespace="">
 
<action name="hello" class="nic.action.MenuListAction" method="execute">

<result name="success" >menujsp.jsp</result>
</action>

<action name="regaction" class="nic.action.DatePickerAction" method="execute">
<result name="success" >registration.jsp</result>
</action>
 
<action name="maritalstat" class="nic.action.PersonalDetailsAction" method="executeMaritalstatus">
<result name="success" >registration.jsp</result>
</action>


</package>
</struts>  

MaritalStatusList.java

package nic.forms;

public class MaritalStatusList {
	String code;
	String name;
	String acronym;
	public MaritalStatusList()
	{
		super();
	}
	public MaritalStatusList(String code,String name,String acronym)
	{
		super();
		this.code=code;
		this.name=name;
		this.acronym=acronym;
		
	}
	public String getCode() 
	{
		System.out.println("\n Inside getCode of MaritalStatusList class in nic.forms");
		return code;
	}
	public void setCode(String code) 
	{
		System.out.println("\n Inside setCode of MaritalStatusList class in nic.forms");
		this.code = code;
	}
	public String getName() 
	{
		System.out.println("\n Inside getName of MaritalStatusList class in nic.forms");
		return name;
	}
	public void setName(String name)
	{
		System.out.println("\n Inside setName of MaritalStatusList class in nic.forms");
		this.name = name;
	}
	public String getAcronym() 
	{
		System.out.println("\n Inside getAcronym of MaritalStatusList class in nic.forms");
		return acronym;
	}
	public void setAcronym(String acronym)
	{
		System.out.println("\n Inside setAcronym of MaritalStatusList class in nic.forms");
		this.acronym = acronym;
	}
	
}

PersonalDetailsAction.java:

package nic.action;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

import nic.db.DAOPersonalDetails;
import nic.forms.*;

public class PersonalDetailsAction extends ActionSupport{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private MaritalStatusList maritalstatuslist;
	


	private List<MaritalStatusList> maritalstatuslistlist;
	

	public MaritalStatusList getMaritalstatuslist() {
		return maritalstatuslist;
	}


	public void setMaritalstatuslist(MaritalStatusList maritalstatuslist) {
		this.maritalstatuslist = maritalstatuslist;
	}

	DAOPersonalDetails daopersonaldetails=new DAOPersonalDetails();
	
	public String executeMaritalstatus()
	{
		maritalstatuslistlist=daopersonaldetails.fetchmaritalstatus();
		return "success";
	}


	public List<MaritalStatusList> getMaritalstatuslistlist() 
	{
		return maritalstatuslistlist;
	}

	public void setMaritalstatuslistlist(List<MaritalStatusList> maritalstatuslistlist) 
	{
		this.maritalstatuslistlist = maritalstatuslistlist;
	}
	
	

}

DAOPersonalDetails.java:

package nic.db;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;


import java.util.*;

import nic.forms.*;

public class DAOPersonalDetails 
{
	public List<MaritalStatusList>fetchmaritalstatus()
	{
		try
		{
			System.out.println("\n Inside fetchmaritalstatus...");
			Connection con=ConnectionProviderEEDB.getEEDBConnection();
			PreparedStatement stmt=con.prepareStatement("select * from refmaritalstat");
			System.out.println("\nstatement Prepared....");
			ResultSet rs=stmt.executeQuery();
			System.out.println("\nExecuting query of EEDB database...");
			MaritalStatusList maritalstatuslist;
			List <MaritalStatusList> list=new ArrayList<MaritalStatusList>();
			while(rs.next())
			{
				maritalstatuslist=new MaritalStatusList();
				System.out.println("Inside fetchmaritalstatus setting code as.."+rs.getString(1));
				maritalstatuslist.setCode(rs.getString(1));
				System.out.println("Inside fetchmaritalstatus setting name as.."+rs.getString(2));
				maritalstatuslist.setName(rs.getString(2));
				System.out.println("Inside fetchmaritalstatus setting acronym as.."+rs.getString(3));
				maritalstatuslist.setAcronym(rs.getString(3));
				list.add(maritalstatuslist);
			}
			return list;
		}
		catch(Exception e)
		{
			System.out.println(e);
		}
		return null;
	}

}

registration.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@taglib uri="/struts-tags" prefix="s"%>
<%@taglib uri="/struts-dojo-tags" prefix="sx" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration page</title></head>


<h1><span style="background-color:#FFFFcc">Registration Form </span></h1>
 <h2>Personal Details</h2>
<body>
<s:form>
<table border="1">
<s:textfield name="firstname" label="First Name" tooltip="Enter the First Name of Candidate"/>
<s:textfield name="middlename" label="Middle Name" />
<s:textfield name="lastname" label="Last Name"/>
<s:textfield name="fathername" label="Father's Name"/>
<s:textfield name="mothername" label="Mother's Name"/>
<s:textfield name="spousename" label="Spouse Name"/>
<s:textfield name="mothername" label="Mother's Name"/>
<s:action name="regaction" ></s:action>
<sx:head cache="false" compressed="false" />
<sx:datetimepicker name="date1" 
displayFormat="dd-MMM-yyyy"
value="today"
label="Select Date(dd-MMM-Year):"/>
<s:textfield name="placeofbirth" label="Birth Place" />
<s:action name="maritalstat" ></s:action>
 <s:combobox label="Marital Status"  
    headerValue="--- Please Select ---"
  headerKey="1" list="maritalstatuslistlist.{name}" name="maritalstatuslistlist" />

  <s:submit value="submit" name="submit" />

 </table>
  
</s:form>



</body>
</html>

now the problem is that when its nor displaying the combobox..but when i am using the config-browser to see the action..the whole page is displayed correctly with combobox having list containing "name" from the MaritalStatusList class with values from the database!!!

i am getting the following errors on log:

Feb 16, 2012 8:10:14 PM com.opensymphony.xwork2.util.logging.commons.CommonsLogger warn
WARNING: No configuration found for the specified action: '/registration.jsp' in namespace: ''. Form action defaulting to 'action' attribute's literal value.

Here i am getting all the statements of System.out.println();

Feb 16, 2012 8:10:14 PM com.opensymphony.xwork2.util.logging.commons.CommonsLogger warn
WARNING: Caught an exception while evaluating expression 'maritalstatuslistlist.{name}' against value stack
java.lang.NullPointerException

Feb 16, 2012 8:10:14 PM com.opensymphony.xwork2.util.logging.commons.CommonsLogger warn
WARNING: NOTE: Previous warning message was issued due to devMode set to true.
Feb 16, 2012 8:10:14 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
tag 'combobox', field 'list', name 'maritalstatuslistlist': You must specify a collection/array/map/enumeration/iterator. Example: people or people.{name} - [unknown location]


i think there is a problem with my jsp...please help me figure it out..

Thanks in advance n Cheerzz!!!

[Lalit Mehra]

Hi there,

I think you need to specify 'action' attribute in your <s:form> inside registration.jsp

and also ... try these changes inside the <s:combobox>

<s:combobox label="Marital Status"    
    headerValue="--- Please Select ---"  
  headerKey="1" list="maritalstatuslistlist" name="maritalstatuslistlist" 
listKey="code" listValue="name"
/> 

Hope this works for you ...

[Sachin Negi]

Thanks for your help..i have changed this a little bit and have called the action from the the jsp in which i had made the menu aND ITS WORKING FINE FOR ME AND i have used the format like you have told me and its working...
Thanks for your help..