Por favor me ajudem com Struts

Front-end
#1

Olá pessoal. Bom, estou tentando usar o Struts mas tá difícil de sair. :roll: O problema é o seguinte: tenho uma página para enviar uma requisição ao ActionServlet. Este por sua vez deveria encamilha-la para meu Action que iriria consulltar o banco e me listar os registros de uma tabela, chamando por fim a minha JSP de exibição. O problema é que quando envio a requisição tenho a seguinte mensagem:

HTTP Status 500 - No action instance for path /pages/listaUsuarios could be created

type Status report

message No action instance for path /pages/listaUsuarios could be created

description The server encountered an internal error (No action instance for path /pages/listaUsuarios could be created) that prevented it from fulfilling this request.
Apache Tomcat/5.0.28

Bom. Abaixo seguem os respectivos arquivos envolvidos na app.

executa.html

<html>
<body>
Listar usuários:
<form action="../pages/listaUsuarios.do" method="POST">
<input type="submit" value=" Listar ">
</form>
</body>
</html>

ActionListarUsuarios.java

package java.struts;

import java.sql.SQLException;
import java.struts.bean.AdminCadastroBD;
import java.util.LinkedList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

public class ActionListarUsuarios extends Action {
    
    public ActionForward execute( ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response ) throws Exception
    {
        LinkedList listaUsuarios = null;
        HttpSession sessao = null;
        ActionMessages erros = new ActionErrors();
        
        try {
            AdminCadastroBD admin = new AdminCadastroBD();
            
            listaUsuarios = admin.listarUsuarios();
            
            sessao = request.getSession();
            sessao.setAttribute( "listaUsuarios", listaUsuarios );
        }
        catch ( SQLException ex ) {

            erros.add( ActionErrors.GLOBAL_MESSAGE, new ActionMessage( "error.struts.list" ) );
            getServlet().getServletContext().log( "Erro ao listar usuarios" );
        }
        
        if( !erros.isEmpty() )
        {
            saveErrors( request, erros );
                
            return ( mapping.findForward( "failure" ) );
        }
        else
        {
            return ( mapping.findForward( "sucess" ) );
        }
    }
}

listaUsuarios.jsp

<%@ taglib prefix="core" uri="http://java.sun.com/jsp/jstl/core" %>

<html>

<body bgcolor="#f0f0f0">

<header><font color="blue">Lista de Usuarios</header>

<hr>

<table>

    <tr bgcolor="#e0e0e0">
        <td>Nome</td>
        <td>Login</td>
        <td>Senha</td>
        <td>Sexo</td>
        <td>Idade</td>
    </tr>
    
    <c:forEach var="usuario" items="${sessionScope.listaUsuarios}">
        <tr>
            <td>${usuario.nomeUsuario}</td>
            <td>${usuario.loginUsuario}</td>
            <td>${usuario.senhaUsuario}</td>
            <td>${usaurio.sexoUsuario}</td>
            <td>${usuario.idadeUsuario}</td>
        </tr>             
    </c:forEach>
    
</table>

</body>

</html>

struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>

    <action-mappings>
    
       <action
            path="/pages/listaUsuarios"
            type="java.struts.ActionListarUsuarios">
            
                <forward name="sucess" path="/pages/listaUsuarios.jsp"/>
                <forward name="failure" path="/pages/erroListar.jsp" />
                
        </action>
            
    </action-mappings>

</struts-config>

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
  "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">

<web-app>
  <display-name>Struts Blank Application</display-name>
  
  <!-- Standard Action Servlet Configuration (with debugging) -->
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>2</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>


  <!-- Standard Action Servlet Mapping -->
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>


  <!-- The Usual Welcome File List -->
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>


  <!-- Struts Tag Library Descriptors -->
  <taglib>
    <taglib-uri>/tags/struts-bean</taglib-uri>
    <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/tags/struts-html</taglib-uri>
    <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/tags/struts-logic</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/tags/struts-nested</taglib-uri>
    <taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/tags/struts-tiles</taglib-uri>
    <taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
  </taglib>

</web-app>

Com estas configurações deveria funcionar certo? Deveria… Parece algum problema no struts-config.xml, mas não consigo fazer funcionar.

Bom, espero que possam me ajudar! []s!

Pablo

#2

tente assim no strtus-config:

        &lt;action 
        	input="/sua_pagina.jsp" 
        	name="nome _do_seu_form" 
        	path="/pages/listaUsuarios"
            type="java.struts.ActionListarUsuarios"
            scope="request" 
            validate="false"&gt;
             &lt;forward name="sucess" path="/pages/listaUsuarios.jsp"/&gt;
             &lt;forward name="failure" path="/pages/erroListar.jsp" /&gt;
&lt;/action&gt;

[]'s

#3