JasperReports - 缺少bean的价值

Question

我正在创建关于 Jaspersoft Studio 的报告，预览一切正常。

我的报告中只有3个字段：nome，medida e bairro。

在我的应用程序中，当我尝试生成报告时它会给出错误

我的源代码：

Class RelatorioUtils

public static void executarRelatorio(String caminhoRelatorio, Map<String, Object> parametros, String nomeRelatorio, JRBeanCollectionDataSource fonteDados) throws IOException {
    FacesContext context = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();

    //pegar caminho do relatorio jasper
    InputStream reportStream = context.getExternalContext().getResourceAsStream(caminhoRelatorio);
    response.setContentType("application/pdf");

    try {
        ServletOutputStream servletOutput = null;
        try {
            servletOutput = response.getOutputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (parametros == null) {
            parametros = new HashMap<String, Object>();
        }

        JasperRunManager.runReportToPdfStream(reportStream, servletOutput, parametros, fonteDados);

        try {
            servletOutput.flush();
            servletOutput.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } catch (JRException e) {
        e.printStackTrace();
    } finally {
        context.getResponseComplete();
    }
}

我的托管Bean

public void emitir() {
    relatorios = dao.listarTodos();
    JRBeanCollectionDataSource fonteDados = new JRBeanCollectionDataSource(relatorios); // aqui está vindo completo meu JRbeanCollection está trazendo todos os dados que preciso
    FacesContext context = FacesContext.getCurrentInstance();
    ServletContext servletContext = (ServletContext) context.getExternalContext().getContext();


    try {
        RelatorioUtil.executarRelatorio("/relatorios/RelatorioMedidaCautelar.jasper", null, "Relatorio", fonteDados);
    } catch (IOException ex) {
        Logger.getLogger(MBRelatorio.class.getName()).log(Level.SEVERE, null, ex);
    }

}

我的豆子

enpublic class MedidaRelatorio {

private String nome;
private String bairro;
private String medida;

public MedidaRelatorio() {
}

public MedidaRelatorio(String nome, String bairro, String medida) {
    this.nome = nome;
    this.bairro = bairro;
    this.medida = medida;
}

public String getNome() {
    return nome;
}

public void setNome(String nome) {
    this.nome = nome;
}

public String getBairro() {
    return bairro;
}

public void setBairro(String bairro) {
    this.bairro = bairro;
}

public String getMedida() {
    return medida;
}

public void setMedida(String medida) {
    this.medida = medida;
}

}

错误：

  

net.sf.jasperreports.engine.JRException：从bean检索字段值时出错：在net.sf.jasperreports.engine处的net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty（JRAbstractBeanDataSource.java:123）。在net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues（JRFillDataset。）的net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue（JRBeanCollectionDataSource.java:109）中的data.JRAbstractBeanDataSource.getFieldValue（JRAbstractBeanDataSource.java:96）。 java：1358）at net.sf.jasperreports.engine.fill.JRFillDataset.next（JRFillDataset.java:1259）at net.sf.jasperreports.engine.fill.JRFillDataset.next（JRFillDataset.java:1235）at net.sf .sasperreports.engine.fill.JRBaseFiller.next（JRBaseFiller.java:1614）at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport（JRVerticalFiller.java:150）at net.sf.jasperreports.engine.fill.JRBaseFiller .fill（JRBaseFiller.java:963）net.sf.jasperreports.engine.fill.JRBaseFiller.fill（JRBaseFiller.java:892）at net.sf .sasperreports.engine.fill.JRFiller.fill（JRFiller.java:114）at net.sf.jasperreports.engine.JasperFillManager.fill（JasperFillManager.java:668）at net.sf.jasperreports.engine.JasperFillManager.fill（JasperFillManager） .java：649）at net.sf.jasperreports.engine.JasperRunManager.runToPdfStream（JasperRunManager.java:437）at net.sf.jasperreports.engine.JasperRunManager.runReportToPdfStream（JasperRunManager.java:858）at br.com.agilles。在br.com.agilles.medidas.beans.MBRelatorio.emitir（MBRelatorio.java:58）的medidas.utils.RelatorioUtil.executarRelatorio（RelatorioUtil.java:57）引起：java.lang.NoSuchMethodException：类上的未知属性''位于org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty（PropertyUtilsBean.java）的org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty（PropertyUtilsBean.java:1277）的'class br.com.agilles.medidas.models.Relatorio' 808）在org.apache.commons.bean中的org.apache.commons.beanutils.PropertyUtilsBean.getProperty（PropertyUtilsBean.java:884） tils.PropertyUtils.getProperty（PropertyUtils.java:464）at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty（JRAbstractBeanDataSource.java:111）... 57 more

任何人都可以帮助我吗？