java.lang.NoSuchMethodException:未知属性'；activePackage'；

我在ireport中指定Fieldname作为实体类中的属性名。但我得到了以下例外

java.lang.NoSuchMethodException: Unknown property 'activePackage'
    at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1122)
    at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:686)
    at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:715)
    at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:290)
    at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:111)
    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 org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView.fillReport(AbstractJasperReportsView.java:669)
    at org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView.renderMergedOutputModel(AbstractJasperReportsView.java:559)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

下面是我的jrxml代码

下面是我的实体类代码：

@实体
@JsonAutoDetect
@表（name=“ra\U bdr\U评级”）
公共类RaBdrRating扩展了BaseModel{
@列（name=“active\u package”）
私有字符串包；
公共字符串getActivePackage（）{
退货包装；
}
public void setActivePackage（字符串activePackage）{
this.activePackage=activePackage；
}
}

这是我的控制器类中的代码

public ModelAndView generateHtmlReport(@ModelAttribute("reports") RaReports     model,ModelAndView modelAndView) throws Exception{

    Map<String,Object> parameterMap = new HashMap<String,Object>();

    List<RaBdrRating> packagesList = reportsDao.retrieveAllPackages(model);

    JRDataSource JRdataSource = new JRBeanCollectionDataSource(packagesList);

    parameterMap.put("datasource", JRdataSource);

    //htmlReport bean has ben declared in the jasper-views.xml file
    modelAndView = new ModelAndView("htmlReport", parameterMap);

    return modelAndView;

} 

publicmodelandview generateHtmlReport（@modeldattribute（“reports”）RaReports model，ModelAndView ModelAndView）引发异常{
Map参数Map=newhashmap（）；
List PackageList=reportsDao.retrieveAllPackages（型号）；
JRDataSource JRDataSource=新的JRBeanCollectionDataSource（PackageList）；
parameterMap.put（“数据源”，JRdataSource）；
//HtmlReportBean已在jasper-views.xml文件中声明
modelAndView=新的modelAndView（“htmlReport”，参数Map）；
返回模型和视图；
} 

在这里，

activePackage

我在我的实体类中声明为字符串类型的私有变量。因此，在我的jrxml中，我使用了与

fieldDescription

相同的名称。如果我在iReport中单击preview，我也会遇到同样的问题。我正在使用iReport 4.5.0。

---

此处检索所有包（型号）有一个jpa查询，它检索所有包并以类型为RaBdrRating的列表的形式返回。RaBdrRating是我之前发布的实体类。我将该列表传递给JRBeanCollectionDatasource，并将该数据源放置在映射中。现在我想在我的报表中显示该列表。因此，我正在以这种方式在iReport中设计报表字段名必须与实体类中的属性名匹配的方式。我想现在您将对此有所了解。

从字段中删除文件描述

<fieldDescription><![CDATA[activePackage]]></fieldDescription>

---

从字段中删除文件描述

<fieldDescription><![CDATA[activePackage]]></fieldDescription>

添加这个“false”对我很有用

JRDataSource JRdataSource = new JRBeanCollectionDataSource(packagesList, **false**);

添加这个“false”对我很有用

JRDataSource JRdataSource = new JRBeanCollectionDataSource(packagesList, **false**);

---

嗯，帮助别人首先需要你的代码片段。然后描述一下你的目标和你的尝试。您还应该使用调试器并检查变量获得的值。在此之后，可能会有一个有用的堆栈跟踪查看。你怎么想？一定要发布你的.jrxml.Is

activePackage

private字段中的相关摘录？如果是这样的话，您可以尝试使用它的getter setter方法吗？@Vanathi

PropertyUtilsBean

与JavaBeans一起工作，并且始终坚持使用getter。@rupa这是一个编译错误吗？你是在iReport上买的吗？您应该发布bean类的代码，帮助人们首先需要您的代码片段。然后描述一下你的目标和你的尝试。您还应该使用调试器并检查变量获得的值。在此之后，可能会有一个有用的堆栈跟踪查看。你怎么想？一定要发布你的.jrxml.Is

activePackage

private字段中的相关摘录？如果是这样的话，您可以尝试使用它的getter setter方法吗？@Vanathi

PropertyUtilsBean

与JavaBeans一起工作，并且始终坚持使用getter。@rupa这是一个编译错误吗？你是在iReport上买的吗？您应该发布bean类的代码