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Asked: 2026-05-11T15:09:31+00:00

Once more here I come with a question of s2, I’m a beginner at

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Once more here I come with a question of s2, I’m a beginner at it and got some trouble finding examples.

I’m building a menu service which depends upon a login, which is give when the user enters at start page. Once the login has been made, I store the user object into the session by doing the follow:

@Override public String intercept(ActionInvocation invocation) throws Exception { ....           // verifica se o parametro do CPF veio no get e tenta logar o usuario if (!StringUtils.isBlank(request.getParameter(USER_CPF_REQUEST))) {  if ( doLogin(request, session) ) {    return Action.SUCCESS; }

and then the doLogin method

Usuario usuario = getServico().buscar( Long.valueOf(cpf) ); //Caso o usuário exista, guarda na session if (usuario != null){     session.setAttribute(USER_HANDLE, usuario);     return true; }

Now comes the problem, I have a MenuBean injected on the MenuAction by the following xml piece on ApplicationContext.xml

<bean id="menuService" class="br.com.autenticis.renacon.ejb.MenuBean" />      <bean id="menuAction" scope="prototype" class="br.com.autenticis.renacon.actions.MenuAction">         <constructor-arg ref="menuService" />     </bean>

And the menuAction is declared as follow:

public class MenuAction extends ActionSupport implements Preparable, SessionAware

By doing so I need to implement the session set with a private member

private Map<String, Object> session; .... @Override public void setSession(Map<String, Object> session) {    this.session = session; }

The failing part of all its the method bellow, the session object is null at debugging:

    public String execute() {             if ( session.containsKey( LoginInterceptor.USER_HANDLE) ){                 Usuario u = (Usuario) session.get( LoginInterceptor.USER_HANDLE);                 setMenu( servico.getMenuPerfil( u.getPerfil() ) );                 return Action.SUCCESS;             }                          return input();         }

Does anyone know why? or how to implement it? Looking at the code above, I need ‘Perfil’ from the user which is logged on, if the session contains the key to the user object I get it and then use the perfil to populate the Menu through the setter and return SUCESS, otherwise it’ll return INPUT which will lead to the login screen.

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  1. After some ours I managed to discover the error. wich lies not in the program but in the struts.xml, I’ve written a custom stack for the application:

    <!-- stack seguro -->  <!--  <interceptor-stack name='defaultLoginStack'>  <interceptor-ref name='logger' />  <interceptor-ref name='params' />  <interceptor-ref name='login' />  <interceptor-ref name='prepare' />  <interceptor-ref name='chain' />  <interceptor-ref name='modelDriven' />  <interceptor-ref name='modelDriven' />  <interceptor-ref name='fileUpload' />  <interceptor-ref name='staticParams' />  <interceptor-ref name='params' />  <interceptor-ref name='conversionError' />  <interceptor-ref name='validation' />  <interceptor-ref name='workflow' />  </interceptor-stack>  -->

    And somewhat forgot to include session-related items, with the defaultLoginStack changed to 

    <interceptor-stack name='defaultLoginStack'>  <interceptor-ref name='login' />  <interceptor-ref name='defaultStack' />  </interceptor-stack>

    I’m now able to use session injected correctly.

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