我总是在更新comboBox的值时尝试更改Managed Bean上属性的值。我使用的是JSF 2.0和Tomcat。
我的XHTML页面甚至没有加载，控制台给我带来以下错误：
javax.el.PropertyNotFoundException: Property 'tratarMudancaCreditos' not found on type br.ifsp.eBlueCard.bean.ComprarCreditoBean"
我将把我的Managed Bean方法放在这里，该方法应该改变另一个属性的值。
public void tratarMudancaCreditos(AjaxBehaviorEvent event){
if(quantidadeCreditos == 30){
this.valorPagamento = 1.0;
}else if(quantidadeCreditos == 60){
this.valorPagamento = 2.0;
}else if(quantidadeCreditos == 90){
this.valorPagamento = 3.0;
}else if(quantidadeCreditos == 120) {
this.valorPagamento = 4.0;
}
}
在我的XHTML页面中，我有以下代码：
<h:selectOneMenu id="creditos" value="#{comprarCreditoBean.quantidadeCreditos}" required="true">
<f:selectItem itemLabel="" noSelectionOption="true"/>
<f:selectItem itemValue="30" itemLabel="30 Créditos" />
<f:selectItem itemValue="60" itemLabel="60 Créditos" />
<f:selectItem itemValue="90" itemLabel="90 Créditos" />
<f:selectItem itemValue="120" itemLabel="120 Créditos" />
<f:ajax listener="#{comprarCreditoBean.tratarMudancaCreditos}"/>
</h:selectOneMenu>
页面甚至没有加载......
@ EDIT1 我已经看到了这个问题 JSF 2 - Ajax Property not found但我已经在我的代码中使用了解决方案。
@ EDIT2
完整堆栈跟踪：
jun 09, 2016 8:48:24 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
GRAVE: Error Rendering View[/compraCredito.xhtml]
javax.el.PropertyNotFoundException: Property 'tratarMudancaCreditos' not found on type br.ifsp.eBlueCard.bean.ComprarCreditoBean
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:268)
at javax.el.BeanELResolver$BeanProperties.access$300(BeanELResolver.java:221)
at javax.el.BeanELResolver.property(BeanELResolver.java:355)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:95)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
at com.sun.faces.facelets.el.ELText$ELTextVariable.toString(ELText.java:214)
at com.sun.faces.facelets.el.ELText$ELTextComposite.toString(ELText.java:155)
at com.sun.faces.facelets.compiler.CommentInstruction.write(CommentInstruction.java:77)
at com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:302)
at com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:105)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304)
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1674)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1674)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:399)
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:509)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at br.ifsp.eBlueCard.util.ControleAcesso.doFilter(ControleAcesso.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
jun 09, 2016 8:48:24 AM org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [Faces Servlet] in context with path [/eBlueCard] threw exception [Property 'tratarMudancaCreditos' not found on type br.ifsp.eBlueCard.bean.ComprarCreditoBean] with root cause
javax.el.PropertyNotFoundException: Property 'tratarMudancaCreditos' not found on type br.ifsp.eBlueCard.bean.ComprarCreditoBean
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:268)
at javax.el.BeanELResolver$BeanProperties.access$300(BeanELResolver.java:221)
at javax.el.BeanELResolver.property(BeanELResolver.java:355)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:95)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
at com.sun.faces.facelets.el.ELText$ELTextVariable.toString(ELText.java:214)
at com.sun.faces.facelets.el.ELText$ELTextComposite.toString(ELText.java:155)
at com.sun.faces.facelets.compiler.CommentInstruction.write(CommentInstruction.java:77)
at com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:302)
at com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:105)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304)
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1674)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:854)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1674)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:399)
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:509)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at br.ifsp.eBlueCard.util.ControleAcesso.doFilter(ControleAcesso.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)