DanielSalles 9 de fev. de 2014
Segue abaixo os códigos:
PÁGINA XHTML:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
< html xmlns = "http://www.w3.org/1999/xhtml"
xmlns:ui = "http://java.sun.com/jsf/facelets"
xmlns:h = "http://java.sun.com/jsf/html"
xmlns:p = "http://primefaces.org/ui"
xmlns:f = "http://java.sun.com/jsf/core" >
< ui:decorate template = "/templates/loja.xhtml" >
< ui:define name = "content" >
< h:form id = "form1" >
< p:selectOneMenu value = "#{promocoesBean.codigo}" label = "Categoria" effect = "fade" styleClass = "combo-promo" >
< f:selectItem itemLabel = "Selecione" itemValue = "" />
< f:selectItems value = "#{promocoesBean.categorias}" var = "categoria" itemLabel = "#{categoria.descricao}" itemValue = "#{categoria.categoriaId}" />
< p:ajax update = ":form2:ring" listener = "#{promocoesBean.carregarProdutos()}" />
</ p:selectOneMenu >
</ h:form >
< h:form id = "form2" >
< p:ring id = "ring" value = "#{promocoesBean.produtos}" var = "produto" styleClass = "image-ring ring-promo" easing = "easeInQuart" >
< p:panelGrid columns = "1" style = "text-align:center;" >
< p:graphicImage id = "imagem" library = "images" name = "#{produto.imagem}" styleClass = "image-produto" />
< p:commandButton update = ":form2:janela" value = "+ Detalhes" oncomplete = "dlg.show()" >
< f:setPropertyActionListener value = "#{produto}" target = "#{promocoesBean.produtoDTO}" />
</ p:commandButton >
</ p:panelGrid >
</ p:ring >
< p:dialog id = "dialog" widgetVar = "dlg" showEffect = "fade" hideEffect = "fade" modal = "false" width = "380" >
< p:outputPanel id = "janela" style = "text-align: center;" layout = "block" >
< p:panelGrid columns = "1" rendered = "#{not empty promocoesBean.produtoDTO}" style = "width: 350px;" >
< p:graphicImage library = "images" name = "#{promocoesBean.produtoDTO.imagem}" styleClass = "image-produto" />
< p:outputLabel value = "Código: #{promocoesBean.produtoDTO.produtoId}" styleClass = "label-codigo" />
< p:outputLabel value = "Produto: #{promocoesBean.produtoDTO.descricao}" styleClass = "label-descricao" />
< p:outputLabel value = "Preço: R$ #{promocoesBean.produtoDTO.preco}" styleClass = "label-preco" />
< p:commandButton value = "Comprar" action = "#" />
</ p:panelGrid >
</ p:outputPanel >
</ p:dialog >
</ h:form >
</ ui:define >
< ui:define name = "right" >
< h:form >
< a href = "http://www.amd.com" target = "_blank" >
< p:graphicImage id = "amd" library = "images" name = "banner_amd.png" styleClass = "banner" title = "AMD Inc." />
</ a >
</ h:form >
</ ui:define >
</ ui:decorate >
</ html >
DanielSalles 9 de fev. de 2014
MANAGEDBEAN:
@ManagedBean ( name = "promocoesBean" )
public final class PromocoesBean {
private ProdutoDTO produtoDTO ;
private CategoriaDTO categoriaDTO ;
private List produtos ;
private List categorias ;
private int codigo ;
public PromocoesBean () throws SQLException , UnsupportedEncodingException {
carregarCategorias ();
carregarProdutos ();
}
public void carregarCategorias () throws SQLException , UnsupportedEncodingException {
CategoriaDAO categoriaDAO = new CategoriaDAO ();
setCategorias ( categoriaDAO . listarCategorias ());
}
public void carregarProdutos () throws SQLException , UnsupportedEncodingException {
ProdutoDAO produtoDAO = new ProdutoDAO ();
getProdutoDTO (). getCategoriaDTO (). setCategoriaId ( codigo );
setProdutos ( produtoDAO . listarPorCategoria ( getProdutoDTO ()));
}
/**
* @return produtoDTO
*/
public ProdutoDTO getProdutoDTO () {
if ( produtoDTO == null ){
produtoDTO = new ProdutoDTO ();
}
return produtoDTO ;
}
/**
* @return categoriaDTO
*/
public CategoriaDTO getCategoriaDTO () {
if ( categoriaDTO == null ) {
categoriaDTO = new CategoriaDTO ();
}
return categoriaDTO ;
}
DanielSalles 9 de fev. de 2014
PRODUTODAO
/**
* Lista Os produtos por categorias.
* @param produtoDTO - com todos os atributos preenchidos.
* @throws SQLException
*/
public List listarPorCategoria ( ProdutoDTO produtoDTO ) throws SQLException {
List allProdutos = new ArrayList ();
if ( produtoDTO != null ) {
List listaProdutos = new ArrayList ();
String sql = "SELECT P.PRODUTO_ID, P.DESCRICAO, P.PRECO, P.ATIVO, P.ESTOQUE, P.IMAGEM FROM PRODUTOS P "
+ "INNER JOIN CATEGORIAS C ON C.CATEGORIA_ID = P.CATEGORIA_ID "
+ "WHERE C.CATEGORIA_ID = ? "
+ "ORDER BY PRODUTO_ID" ;
PreparedStatement pstmt = getDatabase (). openConnection (). prepareStatement ( sql );
pstmt . setInt ( 1 , produtoDTO . getCategoriaDTO (). getCategoriaId ());
ResultSet rs = pstmt . executeQuery ();
while ( rs . next ()) {
produto = new ProdutoDTO ();
produto . setProdutoId ( rs . getInt ( "PRODUTO_ID" ));
produto . setDescricao ( rs . getString ( "DESCRICAO" ));
produto . setPreco ( rs . getFloat ( "PRECO" ));
produto . setEstoque ( rs . getInt ( "ESTOQUE" ));
produto . setAtivo ( rs . getBoolean ( "ATIVO" ));
produto . setImagem ( rs . getString ( "IMAGEM" ));
listaProdutos . add ( produto );
}
getDatabase (). closeConnection ();
return listaProdutos ;
} else {
allProdutos = listarProdutos ();
}
return allProdutos ;
}
DanielSalles 9 de fev. de 2014
Se eu tento utilizar o objeto na página xhtml acontece esses 2 erros:
Sem instanciar o objeto:
GRAVE : Servlet . service () for servlet [ Faces Servlet ] in context with path [ / LojaVirtualPrimefaces ] threw exception [ / loja / promocoes . xhtml @14 , 153 value = "#{promocoesBean.produtoDTO.categoriaDTO.categoriaId}" : Target Unreachable , ‘ produtoDTO ’ returned null ] with root cause
javax . el . PropertyNotFoundException : / loja / promocoes . xhtml @14 , 153 value = "#{promocoesBean.produtoDTO.categoriaDTO.categoriaId}" : Target Unreachable , ‘ produtoDTO ’ returned null
at com . sun . faces . facelets . el . TagValueExpression . getType ( TagValueExpression . java : 100 )
at org . primefaces . renderkit . InputRenderer . findImplicitConverter ( InputRenderer . java : 170 )
at org . primefaces . renderkit . InputRenderer . getOptionAsString ( InputRenderer . java : 156 )
at org . primefaces . component . selectonemenu . SelectOneMenuRenderer . encodeOption ( SelectOneMenuRenderer . java : 347 )
at org . primefaces . component . selectonemenu . SelectOneMenuRenderer . encodeSelectItems ( SelectOneMenuRenderer . java : 333 )
at org . primefaces . component . selectonemenu . SelectOneMenuRenderer . encodeInput ( SelectOneMenuRenderer . java : 114 )
at org . primefaces . component . selectonemenu . SelectOneMenuRenderer . encodeMarkup ( SelectOneMenuRenderer . java : 91 )
at org . primefaces . component . selectonemenu . SelectOneMenuRenderer . encodeEnd ( SelectOneMenuRenderer . java : 65 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1763 )
at javax . faces . render . Renderer . encodeChildren ( Renderer . java : 168 )
at javax . faces . component . UIComponentBase . encodeChildren ( UIComponentBase . java : 845 )
at org . primefaces . renderkit . CoreRenderer . renderChild ( CoreRenderer . java : 59 )
at org . primefaces . renderkit . CoreRenderer . renderChildren ( CoreRenderer . java : 47 )
at org . primefaces . component . layout . LayoutUnitRenderer . encodeEnd ( LayoutUnitRenderer . java : 51 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1763 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at com . sun . faces . application . view . FaceletViewHandlingStrategy . renderView ( FaceletViewHandlingStrategy . java : 401 )
at com . sun . faces . application . view . MultiViewHandler . renderView ( MultiViewHandler . java : 131 )
at com . sun . faces . lifecycle . RenderResponsePhase . execute ( RenderResponsePhase . java : 121 )
at com . sun . faces . lifecycle . Phase . doPhase ( Phase . java : 101 )
at com . sun . faces . lifecycle . LifecycleImpl . render ( LifecycleImpl . java : 139 )
at javax . faces . webapp . FacesServlet . service ( FacesServlet . java : 410 )
at org . apache . catalina . core . ApplicationFilterChain . internalDoFilter ( ApplicationFilterChain . java : 305 )
at org . apache . catalina . core . ApplicationFilterChain . doFilter ( ApplicationFilterChain . java : 210 )
at org . apache . catalina . core . StandardWrapperValve . invoke ( StandardWrapperValve . java : 225 )
at org . apache . catalina . core . StandardContextValve . invoke ( StandardContextValve . java : 123 )
at org . apache . catalina . authenticator . AuthenticatorBase . invoke ( AuthenticatorBase . java : 472 )
at org . apache . catalina . core . StandardHostValve . invoke ( StandardHostValve . java : 168 )
at org . apache . catalina . valves . ErrorReportValve . invoke ( ErrorReportValve . java : 98 )
at org . apache . catalina . valves . AccessLogValve . invoke ( AccessLogValve . java : 927 )
at org . apache . catalina . core . StandardEngineValve . invoke ( StandardEngineValve . java : 118 )
at org . apache . catalina . connector . CoyoteAdapter . service ( CoyoteAdapter . java : 407 )
at org . apache . coyote . http11 . AbstractHttp11Processor . process ( AbstractHttp11Processor . java : 1001 )
at org . apache . coyote . AbstractProtocol$AbstractConnectionHandler . process ( AbstractProtocol . java : 585 )
at org . apache . tomcat . util . net . AprEndpoint$SocketProcessor . run ( AprEndpoint . java : 1770 )
at java . util . concurrent . ThreadPoolExecutor$Worker . runTask ( ThreadPoolExecutor . java : 886 )
at java . util . concurrent . ThreadPoolExecutor$Worker . run ( ThreadPoolExecutor . java : 908 )
at java . lang . Thread . run ( Thread . java : 662 )
DanielSalles 9 de fev. de 2014
Com a instancia do objeto:
GRAVE : Servlet . service () for servlet [ Faces Servlet ] in context with path [ / LojaVirtualPrimefaces ] threw exception [ String index out of range : 0 ] with root cause
java . lang . StringIndexOutOfBoundsException : String index out of range : 0
at java . lang . String . charAt ( String . java : 686 )
at com . sun . faces . application . resource . ResourceManager . trimLeadingSlash ( ResourceManager . java : 490 )
at com . sun . faces . application . resource . ResourceManager . doLookup ( ResourceManager . java : 247 )
at com . sun . faces . application . resource . ResourceManager . findResource ( ResourceManager . java : 185 )
at com . sun . faces . application . resource . ResourceHandlerImpl . createResource ( ResourceHandlerImpl . java : 143 )
at com . sun . faces . application . resource . ResourceHandlerImpl . createResource ( ResourceHandlerImpl . java : 123 )
at javax . faces . application . ResourceHandlerWrapper . createResource ( ResourceHandlerWrapper . java : 96 )
at org . primefaces . component . graphicimage . GraphicImageRenderer . getImageSrc ( GraphicImageRenderer . java : 66 )
at org . primefaces . component . graphicimage . GraphicImageRenderer . encodeEnd ( GraphicImageRenderer . java : 45 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1763 )
at org . primefaces . component . panelgrid . PanelGridRenderer . encodeDynamicBody ( PanelGridRenderer . java : 92 )
at org . primefaces . component . panelgrid . PanelGridRenderer . encodeBody ( PanelGridRenderer . java : 60 )
at org . primefaces . component . panelgrid . PanelGridRenderer . encodeEnd ( PanelGridRenderer . java : 49 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at org . primefaces . renderkit . CoreRenderer . renderChild ( CoreRenderer . java : 63 )
at org . primefaces . renderkit . CoreRenderer . renderChildren ( CoreRenderer . java : 47 )
at org . primefaces . component . outputpanel . OutputPanelRenderer . encodeEnd ( OutputPanelRenderer . java : 46 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at org . primefaces . renderkit . CoreRenderer . renderChild ( CoreRenderer . java : 63 )
at org . primefaces . renderkit . CoreRenderer . renderChildren ( CoreRenderer . java : 47 )
at org . primefaces . component . dialog . DialogRenderer . encodeContent ( DialogRenderer . java : 172 )
at org . primefaces . component . dialog . DialogRenderer . encodeMarkup ( DialogRenderer . java : 101 )
at org . primefaces . component . dialog . DialogRenderer . encodeEnd ( DialogRenderer . java : 43 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1763 )
at javax . faces . render . Renderer . encodeChildren ( Renderer . java : 168 )
at javax . faces . component . UIComponentBase . encodeChildren ( UIComponentBase . java : 845 )
at org . primefaces . renderkit . CoreRenderer . renderChild ( CoreRenderer . java : 59 )
at org . primefaces . renderkit . CoreRenderer . renderChildren ( CoreRenderer . java : 47 )
at org . primefaces . component . layout . LayoutUnitRenderer . encodeEnd ( LayoutUnitRenderer . java : 51 )
at javax . faces . component . UIComponentBase . encodeEnd ( UIComponentBase . java : 875 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1763 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at javax . faces . component . UIComponent . encodeAll ( UIComponent . java : 1759 )
at com . sun . faces . application . view . FaceletViewHandlingStrategy . renderView ( FaceletViewHandlingStrategy . java : 401 )
at com . sun . faces . application . view . MultiViewHandler . renderView ( MultiViewHandler . java : 131 )
at com . sun . faces . lifecycle . RenderResponsePhase . execute ( RenderResponsePhase . java : 121 )
at com . sun . faces . lifecycle . Phase . doPhase ( Phase . java : 101 )
at com . sun . faces . lifecycle . LifecycleImpl . render ( LifecycleImpl . java : 139 )
at javax . faces . webapp . FacesServlet . service ( FacesServlet . java : 410 )
at org . apache . catalina . core . ApplicationFilterChain . internalDoFilter ( ApplicationFilterChain . java : 305 )
at org . apache . catalina . core . ApplicationFilterChain . doFilter ( ApplicationFilterChain . java : 210 )
at org . apache . catalina . core . StandardWrapperValve . invoke ( StandardWrapperValve . java : 225 )
at org . apache . catalina . core . StandardContextValve . invoke ( StandardContextValve . java : 123 )
at org . apache . catalina . authenticator . AuthenticatorBase . invoke ( AuthenticatorBase . java : 472 )
at org . apache . catalina . core . StandardHostValve . invoke ( StandardHostValve . java : 168 )
at org . apache . catalina . valves . ErrorReportValve . invoke ( ErrorReportValve . java : 98 )
at org . apache . catalina . valves . AccessLogValve . invoke ( AccessLogValve . java : 927 )
at org . apache . catalina . core . StandardEngineValve . invoke ( StandardEngineValve . java : 118 )
at org . apache . catalina . connector . CoyoteAdapter . service ( CoyoteAdapter . java : 407 )
at org . apache . coyote . http11 . AbstractHttp11Processor . process ( AbstractHttp11Processor . java : 1001 )
at org . apache . coyote . AbstractProtocol$AbstractConnectionHandler . process ( AbstractProtocol . java : 585 )
at org . apache . tomcat . util . net . AprEndpoint$SocketProcessor . run ( AprEndpoint . java : 1770 )
at java . util . concurrent . ThreadPoolExecutor$Worker . runTask ( ThreadPoolExecutor . java : 886 )
at java . util . concurrent . ThreadPoolExecutor$Worker . run ( ThreadPoolExecutor . java : 908 )
at java . lang . Thread . run ( Thread . java : 662 )
E caso eu use uma variável int para pegar o id da categoria não dá erro, mas a variável sempre vem igual a zero.
Estou utilizando primefaces 3.5, win 7, netbeans 7.2 e apache-tomcat-7.0.29
