Porque o código não esta executando?

5 respostas
Z

Ola amigos, vejam se entendem o problema

Porque quando eu passo o mouse sobre o botão ele não me manda uma msg na tela?

Att

Criei um form teste com os seguintes codigos abaixo :

jsp:

<?xml version="1.0" encoding="UTF-8"?>
<!-- 
    Document   : Page1
    Created on : 14/09/2010, 09:10:15
    Author     : danilo
-->
<jsp:root version="2.1" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:webuijsf="http://www.sun.com/webui/webuijsf">
    <jsp:directive.page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"/>
    <f:view>
        <webuijsf:page id="page1">
            <webuijsf:html id="html1">
                <webuijsf:head id="head1">
                    <webuijsf:link id="link1" url="/resources/stylesheet.css"/>
                </webuijsf:head>
                <webuijsf:body id="body1" style="-rave-layout: grid">
                    <webuijsf:form id="form1">
                        <webuijsf:button id="button1" onMouseMove="#{classe_teste.evento_teste}" style="position: absolute; left: 240px; top: 312px" text="Botão"/>
                    </webuijsf:form>
                </webuijsf:body>
            </webuijsf:html>
        </webuijsf:page>
    </f:view>
</jsp:root>

java:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package daniloweb;

import com.sun.rave.web.ui.appbase.AbstractPageBean;
import javax.faces.FacesException;
import javax.faces.event.ValueChangeEvent;
import javax.swing.JOptionPane;

/**
 * <p>Page bean that corresponds to a similarly named JSP page.  This
 * class contains component definitions (and initialization code) for
 * all components that you have defined on this page, as well as
 * lifecycle methods and event handlers where you may add behavior
 * to respond to incoming events.</p>
 *
 * @version Page1.java
 * @version Created on 14/09/2010, 09:10:15
 * @author danilo
 */

public class Page1 extends AbstractPageBean {
    // <editor-fold defaultstate="collapsed" desc="Managed Component Definition">

    /**
     * <p>Automatically managed component initialization.  <strong>WARNING:</strong>
     * This method is automatically generated, so any user-specified code inserted
     * here is subject to being replaced.</p>
     */
    private void _init() throws Exception {
    }

    // </editor-fold>

    /**
     * <p>Construct a new Page bean instance.</p>
     */
    public Page1() {
    }

    /**
     * <p>Callback method that is called whenever a page is navigated to,
     * either directly via a URL, or indirectly via page navigation.
     * Customize this method to acquire resources that will be needed
     * for event handlers and lifecycle methods, whether or not this
     * page is performing post back processing.</p>
     * 
     * <p>Note that, if the current request is a postback, the property
     * values of the components do <strong>not</strong> represent any
     * values submitted with this request.  Instead, they represent the
     * property values that were saved for this view when it was rendered.</p>
     */
    @Override
    public void init() {
        // Perform initializations inherited from our superclass
        super.init();
        // Perform application initialization that must complete
        // *before* managed components are initialized
        // TODO - add your own initialiation code here
        
        // <editor-fold defaultstate="collapsed" desc="Managed Component Initialization">
        // Initialize automatically managed components
        // *Note* - this logic should NOT be modified
        try {
            _init();
        } catch (Exception e) {
            log("Page1 Initialization Failure", e);
            throw e instanceof FacesException ? (FacesException) e: new FacesException(e);
        }
        
        // </editor-fold>
        // Perform application initialization that must complete
        // *after* managed components are initialized
        // TODO - add your own initialization code here
    }

    /**
     * <p>Callback method that is called after the component tree has been
     * restored, but before any event processing takes place.  This method
     * will <strong>only</strong> be called on a postback request that
     * is processing a form submit.  Customize this method to allocate
     * resources that will be required in your event handlers.</p>
     */
    @Override
    public void preprocess() {
    }

    /**
     * <p>Callback method that is called just before rendering takes place.
     * This method will <strong>only</strong> be called for the page that
     * will actually be rendered (and not, for example, on a page that
     * handled a postback and then navigated to a different page).  Customize
     * this method to allocate resources that will be required for rendering
     * this page.</p>
     */
    @Override
    public void prerender() {
    }

    /**
     * <p>Callback method that is called after rendering is completed for
     * this request, if <code>init()</code> was called (regardless of whether
     * or not this was the page that was actually rendered).  Customize this
     * method to release resources acquired in the <code>init()</code>,
     * <code>preprocess()</code>, or <code>prerender()</code> methods (or
     * acquired during execution of an event handler).</p>
     */
    @Override
    public void destroy() {
    }
    
    /**
     * <p>Return a reference to the scoped data bean.</p>
     *
     * @return reference to the scoped data bean
     */
    protected SessionBean1 getSessionBean1() {
        return (SessionBean1) getBean("SessionBean1");
    }

    /**
     * <p>Return a reference to the scoped data bean.</p>
     *
     * @return reference to the scoped data bean
     */
    protected RequestBean1 getRequestBean1() {
        return (RequestBean1) getBean("RequestBean1");
    }

    /**
     * <p>Return a reference to the scoped data bean.</p>
     *
     * @return reference to the scoped data bean
     */
    protected ApplicationBean1 getApplicationBean1() {
        return (ApplicationBean1) getBean("ApplicationBean1");
    }

    public void teste_java(){
        JOptionPane.showMessageDialog(null, "X");
    }

    public void textField1_processValueChange(ValueChangeEvent vce) {
    }

    public String button1_action() {
        // TODO: Processe a ação. O valor de retorno é um nome de caso
        // de navegação em que nulo retornará à mesma página.
        return null;
    }




}

Classe "classe_teste.java"

import javax.swing.JOptionPane;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author danilo
 */
public class classe_teste {
    
    public void evento_teste(){
        JOptionPane.showMessageDialog(null, "X");
    }

}

5 Respostas

dev.rafael

Tá com cara de q vc está usando o editor visual de JSF do Netbeans. Eu trabalho com JSF a algum tempo e te aconselho a não usar essa ferramenta, especialmente se vc
ainda está aprendendo JSF.
Outra coisa, JOptionPane é um componente da SWING, q é uma API p/ desenvolver sistemas de desktop não sistemas WEB.

Z

Ok, entao como posso mandar ums msg na tela ?

Ao passar o mouse em cima do botão ?..

dev.rafael

Vc pode usar a funcão “alert” do JavaScript.

Z

Ok usarei ele, mas como ? como declaro este alert no evento ?

Obrigado!

dev.rafael

Kra o atributo onMouseMove não pode ser usado do modo q vc usou no seu código. Ele serve apenas p/ executar script. Tente isso:

<webuijsf:button id="button1" onMouseMove="#alert('Hello user!:)')" style="position: absolute; left: 240px; top: 312px" text="Botão"/>
Criado 14 de setembro de 2010
Ultima resposta 15 de set. de 2010
Respostas 5
Participantes 2