boa tarde a todos
eu estou estudando jsf
e consegui fazer a comunicação entre dois beans depois de muito procurar
e achei desta maneira:
@ManagedBean(name = "principalControler")
@SessionScoped
public class PrincipalControler implements Serializable {
public String getExemplo() {
return "Exemplo"
}
}
@ManagedBean(name = "segundoControler")
@SessionScoped
public class SegundoControler implements Serializable {
public void TesteControle() {
FacesContext ctx = FacesContext.getCurrentInstance();
Map sessionMap = ctx.getExternalContext().getSessionMap();
principal = (PrincipalControler) sessionMap.get("principalControler");
principal.getExemplo();
}
}
ate ai funciona muito bem
so que pesquisando encontrei uma forma de
colocar no Segundo o ManagedProperty
então o segundo bean ficaria assim:
@ManagedBean(name = "segundoControler")
@SessionScoped
public class SegundoControler implements Serializable {
@ManagedProperty(value="#{principalControler})
private PrincipalControler principal;
public void TesteControle() {
principal.getExemplo();
}
}
o problema e que quando eu chamo o .html que trabalha com o SegundoControler
me da um erro no tomcat:
Jul 15, 2014 1:41:06 PM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
GRAVE: Error Rendering View[/cadast/CDP0M030.xhtml]
com.sun.faces.mgbean.ManagedBeanCreationException: Não foi possível criar o bean gerenciado segundoControler. Os seguintes problemas foram encontrados:
- A propriedade principal para o bean gerenciado segundoControler não existe.
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:265)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:257)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:117)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:72)
at org.apache.el.parser.AstValue.getValue(AstValue.java:161)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:174)
at javax.faces.component.UIInput.getValue(UIInput.java:291)
at org.primefaces.util.ComponentUtils.getValueToRender(ComponentUtils.java:73)
at org.primefaces.component.inputtext.InputTextRenderer.encodeMarkup(InputTextRenderer.java:75)
at org.primefaces.component.inputtext.InputTextRenderer.encodeEnd(InputTextRenderer.java:52)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1903)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:889)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1896)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1899)
at com.sun.faces.context.PartialViewContextImpl.renderAll(PartialViewContextImpl.java:426)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:310)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57)
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1896)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:425)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
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:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
A resolução e a seguinte: a propriedade abaixo deve ser substituído o "principal" por "principalControler"
private PrincipalControler principalControler;