Ошибка получения значения поля из bean

Question

У меня проблема. Я пытаюсь создать отчет из java, используя JasperReports, но я получаю сообщение об ошибке.

public void init() throws JRException { 
    list= ef.comisionReporte(); 
    JRBeanCollectionDataSource beanCollectionDataSource = new JRBeanCollectionDataSource(list); 
    String reportPath = FacesContext.getCurrentInstance().getExternalContext().getRealPath("report2.jasper"); 

    jasperPrint = JasperFillManager.fillReport(reportPath, new HashMap(), beanCollectionDataSource); 
} 

public void PDF() throws JRException, IOException { 
    init(); 
    HttpServletResponse httpServletResponse = (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse(); 
    httpServletResponse.addHeader("Content-disposition", "attachment; filename=report.pdf"); 
    ServletOutputStream servletOutputStream = httpServletResponse.getOutputStream(); 
    JasperExportManager.exportReportToPdfStream(jasperPrint, servletOutputStream); 
    FacesContext.getCurrentInstance().responseComplete(); 
} 

Стек след:

GRAVE: Se ha recibido 'net.sf.jasperreports.engine.JRException' al invocar la escucha de acción '#{liquidarComisionReporte.PDF()}' para el componente 'pdfreporte' 
GRAVE: net.sf.jasperreports.engine.JRException: Error retrieving field value from bean : nombretienda 
    at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:123) 
    at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:96) 
    at net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue(JRBeanCollectionDataSource.java:100) 
    at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:895) 
    at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:860) 
    at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:837) 
    at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1434) 
    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:126) 
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:836) 
    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:765) 
    at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:84) 
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624) 
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:540) 
    at com.itsolutions.nomina.vista.liquidarComision.liquidarComisionReporte.init(liquidarComisionReporte.java:100) 
    at com.itsolutions.nomina.vista.liquidarComision.liquidarComisionReporte.PDF(liquidarComisionReporte.java:119) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at javax.el.BeanELResolver.invokeMethod(BeanELResolver.java:737) 
    at javax.el.BeanELResolver.invoke(BeanELResolver.java:467) 
    at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:254) 
    at com.sun.el.parser.AstValue.invoke(AstValue.java:228) 
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297) 
    at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:43) 
    at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:56) 
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:148) 
    at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88) 
    at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:300) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) 
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:619) 
Caused by: java.lang.NoSuchMethodException: Unknown property 'nombretienda' on class 'class [Ljava.lang.Object;' 
    at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1322) 
    at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:770) 
    at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:846) 
    at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:426) 
    at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:111) 
    ... 61 more 

Answer 1

Как ваш боб выглядеть? Одна из возможных причин этой ошибки состоит в том, что у вас нет получателя для поля. Геттеры должны уважать стандартный формат Java, поэтому в вашем случае я предполагаю, что это будет getNombretienda(). Также геттеры должны быть public.

Answer 2

атрибут Bean должен быть запущен с маленькой буквы

пример:

public class DataBean { 

    private String name; 
    private String dateStart; 
    private String DateEnd; // ->dateEnd 
    private String prixTotale; 
    private String prixPayer;