JSF passar parametros

6 de março de 2008 5 respostas

Granella 6 de março de 2008

Olá pessoal! Estou com um problema (de iniciante) com relação a passagem de parametros de um Bean para outro... Tipo tenho o formulario abaixo:

&lt;h:form id="formEmpresalog"&gt;                
                    &lt;rich:panel&gt;
                        &lt;f:facet name="header"&gt;
                            Empresas
                        &lt;/f:facet&gt;                    
                        &lt;div class="divInput"&gt;                            
                            &lt;h:outputLabel value="Apelido:" for="empresa"/&gt;<br />
                            &lt;h:selectOneMenu id="empresa" value="#{EmplogMB.id}" styleClass="ComboBox"
                                             required="true" requiredMessage="Você deve especificar uma empresa!"&gt;
                                &lt;f:selectItems value="#{EmplogMB.listEmpresas}" /&gt;                            
                            &lt;/h:selectOneMenu&gt;                         
                        &lt;/div&gt;                    
                        &lt;div id="buttons"&gt;
                            &lt;a4j:commandButton value="Entrar" styleClass="formButton" action="#{EmplogMB.entrar}"
                                               onmouseover="this.className='formButtonOver'"
                                               onmouseout="this.className='formButton'" /&gt;
                            &lt;rich:spacer width="5" /&gt;
                            &lt;h:commandButton immediate="true" value="Nova" styleClass="formButton" action="#{EmplogMB.nova}"
                                             onmouseover="this.className='formButtonOver'"
                                             onmouseout="this.className='formButton'" /&gt;
                            &lt;rich:spacer width="5" /&gt;
                            &lt;h:commandButton value="Editar" styleClass="formButton" action="#{EmplogMB.editar}"
                                             onmouseover="this.className='formButtonOver'"
                                             onmouseout="this.className='formButton'" &gt;
                            &lt;/h:commandButton&gt;
                        &lt;/div&gt;
                    &lt;/rich:panel&gt;                
                &lt;/h:form&gt;

onde tem um combobox com as empresas cadastradas e 3 botoes Entrar, Nova, Editar... O problema esta quando quero editar uma empresa escolhida no combobox onde ao pressionar o botão editar ele não passa o ID da Empresa para que eu possa pesquisar e trazer os dados no MB... Abaixo os metodos do retorno da navegação

public String nova() {
        return "new";
    }

    public String editar() {
        return "edit";
    }

E no construtor do outro MB testo o ID

public EmpresaMB() {
        if (id == null) {
            empresa = new Empresa();
        } else {
            EmpresaDAO dao = new EmpresaDAO();
            empresa = dao.findById(id);
        }
    }

Desde ja obrigado!

5 Respostas

marcosbrandao 7 de mar. de 2008

Como está declarado o seu mBean no faces-config?

Granella 7 de mar. de 2008

Olá!

Esta assim:

&lt;?xml version='1.0' encoding='UTF-8'?&gt;

&lt;!-- =========== FULL CONFIGURATION FILE ================================== --&gt;

&lt;faces-config version="1.2" 
              xmlns="http://java.sun.com/xml/ns/javaee" 
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
              xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd"&gt;
    
    &lt;application&gt;
        &lt;locale-config&gt;            
            &lt;default-locale&gt;pt_BR&lt;/default-locale&gt;            
        &lt;/locale-config&gt;
        
        &lt;view-handler&gt;com.sun.facelets.FaceletViewHandler&lt;/view-handler&gt;
    &lt;/application&gt;
    
    &lt;converter&gt;
        &lt;converter-for-class&gt;java.lang.Enum&lt;/converter-for-class&gt;
        &lt;converter-class&gt;br.com.fef.mbeans.converter.EnumTypeConverter&lt;/converter-class&gt;
    &lt;/converter&gt;
    
    &lt;!-- EmplogMB --&gt;
    &lt;managed-bean&gt;
        &lt;managed-bean-name&gt;EmplogMB&lt;/managed-bean-name&gt;
        &lt;managed-bean-class&gt;br.com.fef.mbeans.EmplogMB&lt;/managed-bean-class&gt;
        &lt;managed-bean-scope&gt;session&lt;/managed-bean-scope&gt;
    &lt;/managed-bean&gt; 
    &lt;navigation-rule&gt;
        &lt;from-view-id&gt;/log_empresa.xhtml&lt;/from-view-id&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;home&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/app/home.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;new&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/empresa.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;edit&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/empresa.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
    &lt;/navigation-rule&gt;
    &lt;!-- End of EmplogMB --&gt;
    
    &lt;!-- EmpresaMB --&gt;
    &lt;managed-bean&gt;
        &lt;managed-bean-name&gt;EmpresaMB&lt;/managed-bean-name&gt;
        &lt;managed-bean-class&gt;br.com.fef.mbeans.EmpresaMB&lt;/managed-bean-class&gt;
        &lt;managed-bean-scope&gt;request&lt;/managed-bean-scope&gt;
    &lt;/managed-bean&gt;    
    &lt;navigation-rule&gt;
        &lt;from-view-id&gt;/empresa.xhtml&lt;/from-view-id&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;success&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/log_empresa.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
    &lt;/navigation-rule&gt;
    &lt;!-- End of EmpresaMB --&gt;
    
&lt;/faces-config&gt;

Ja tentei colocar um f:param no commandButton mas parece que não da certo com ele....
Obrigado pela atenção!

marcosbrandao 7 de mar. de 2008

Inicialmente parece estar certo.

Visualize o fonte da pagina gerada em html pra ver se o código está sendo gerado certo.

Talvez seja algum componente richFaces que possa está causando isso. Nunca usei richfaces portanto não posso afirmar nada.

Leozin 7 de mar. de 2008

cara, não sei se você percebeu…

public EmpresaMB() { if (id == null) { empresa = new Empresa(); } else { EmpresaDAO dao = new EmpresaDAO(); empresa = dao.findById(id); } }
mas o else NUNCA vai ser executado

Granella 7 de mar. de 2008

Olá!

:shock: Leozin pois é, na correria a gente acaba fazendo besteira…
Bom resolvi, não sei se é o modo mais elegante assim:

&lt;!-- EmplogMB --&gt;
    &lt;managed-bean&gt;
        &lt;managed-bean-name&gt;EmplogMB&lt;/managed-bean-name&gt;
        &lt;managed-bean-class&gt;br.com.fef.mbeans.EmplogMB&lt;/managed-bean-class&gt;
        &lt;managed-bean-scope&gt;session&lt;/managed-bean-scope&gt;
    &lt;/managed-bean&gt; 
    &lt;navigation-rule&gt;
        &lt;from-view-id&gt;/log_empresa.xhtml&lt;/from-view-id&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;home&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/app/home.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;        
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;empresa&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/empresa.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
    &lt;/navigation-rule&gt;
    &lt;!-- End of EmplogMB --&gt;
    
    &lt;!-- EmpresaMB --&gt;
    &lt;managed-bean&gt;
        &lt;managed-bean-name&gt;EmpresaMB&lt;/managed-bean-name&gt;
        &lt;managed-bean-class&gt;br.com.fef.mbeans.EmpresaMB&lt;/managed-bean-class&gt;
        &lt;managed-bean-scope&gt;request&lt;/managed-bean-scope&gt;
        &lt;managed-property&gt;
            &lt;property-name&gt;id&lt;/property-name&gt;
            &lt;property-class&gt;java.lang.Long&lt;/property-class&gt;
            &lt;value&gt;#{EmplogMB.id}&lt;/value&gt;
        &lt;/managed-property&gt;        
    &lt;/managed-bean&gt;    
    &lt;navigation-rule&gt;
        &lt;from-view-id&gt;/empresa.xhtml&lt;/from-view-id&gt;
        &lt;navigation-case&gt;
            &lt;from-outcome&gt;success&lt;/from-outcome&gt;
            &lt;to-view-id&gt;/log_empresa.xhtml&lt;/to-view-id&gt;
            &lt;redirect/&gt;
        &lt;/navigation-case&gt;
    &lt;/navigation-rule&gt;
    &lt;!-- End of EmpresaMB --&gt;

@PostConstruct private void init() { if (id != null) { EmpresaDAO dao = new EmpresaDAO(); empresa = dao.findById(id); } else { empresa = new Empresa(); } }

Criado 6 de março de 2008

Ultima resposta 7 de mar. de 2008

Respostas 5

Participantes 3

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