Bom dia a todos.
Eu estou tentando gerar um relatório com o jasper a partir de uma classe utilitária com essa função. Mas quando é para carregar o arquivo a partir do caminho eu recebo a mensagem de nullPointException, porém o caminho esta correto. Abaixo segue o código. Grato a todos que possam ajudar.
<!-- ====================RECIBO PESSOA =======================-->
<h:form>
<h:commandLink>
<f:setPropertyActionListener target="#{relatorioController.tipoRelatorio}" value="1"/>
<p:fileDownload value="#{relatorioController.arquivoRetorno}"/>
<h:graphicImage library="imagens" name="search.png" title="Imprimir PDF" />
</h:commandLink>
</h:form> Método que gera o relatório:
public StreamedContent geraRelatorio(HashMap parametrosRelatorio, String nomeRelatorioJasper, String nomeRelatorioSaida, int tipoRelatorio) throws Exception {
StreamedContent arquivoRetorno = null;
try {
FacesContext context = FacesContext.getCurrentInstance();
Connection conexao = this.getConexao();
String caminhoRelatorio = context.getExternalContext().getRealPath("relatorios");
String caminhoArquivoJasper = caminhoRelatorio + File.separator + nomeRelatorioJasper + ".jasper";
String caminhoArquivoRelatorio = null;
//NA LINHA ABIXO É QUE OCORRE O PROBLEMA
JasperReport relatorioJasper = (JasperReport) JRLoader.loadObject(caminhoArquivoJasper);
JasperPrint impressoraJasper = JasperFillManager. fillReport(jr, parametrosRelatorio, conexao);
JRExporter tipoArquivoExportado = null;
String extensaoArquivoExportado = "";
File arquivoGerado = null;
switch (tipoRelatorio) {
case RelatorioUtil.RELATORIO_PDF :
tipoArquivoExportado = new JRPdfExporter();
extensaoArquivoExportado = "pdf";
break;
case RelatorioUtil.RELATORIO_HTML :
tipoArquivoExportado = new JRHtmlExporter();
extensaoArquivoExportado = "html";
break;
case RelatorioUtil.RELATORIO_EXCEL :
tipoArquivoExportado = new JRXlsExporter();
extensaoArquivoExportado = "xls";
break;
case RelatorioUtil.RELATORIO_PLANILHA_OPEN_OFFICE :
tipoArquivoExportado = new JROdtExporter();
extensaoArquivoExportado = "ods";
break;
default :
tipoArquivoExportado = new JRPdfExporter();
extensaoArquivoExportado = "pdf";
break;
}
caminhoArquivoRelatorio = caminhoRelatorio + File.separator + nomeRelatorioSaida + "." + extensaoArquivoExportado;
arquivoGerado = new java.io.File(caminhoArquivoRelatorio);
tipoArquivoExportado.setParameter(JRExporterParameter.JASPER_PRINT, impressoraJasper);
tipoArquivoExportado.setParameter(JRExporterParameter.OUTPUT_FILE, arquivoGerado);
tipoArquivoExportado.exportReport();
arquivoGerado.deleteOnExit();
InputStream conteudoRelatorio = new FileInputStream(arquivoGerado);
arquivoRetorno = new DefaultStreamedContent(conteudoRelatorio, "application/" + extensaoArquivoExportado, nomeRelatorioSaida + "." + extensaoArquivoExportado);
} catch (JRException e) {
throw new Exception("Não foi possível gerar o relatório.", e);
} catch (FileNotFoundException e) {
throw new Exception("Arquivo do relatório não encontrado.", e);
}
return arquivoRetorno;
}
Meu Controller
public StreamedContent getArquivoRetorno() {
FacesContext context = FacesContext.getCurrentInstance();
String nomeRelatorioJasper = "reciboAtendimento";
String nomeRelatorioSaida = "teste";
RelatorioUtil relatorioUtil = new RelatorioUtil();
HashMap parametrosRelatorio = new HashMap();
Atendimento atendimento = atendimentoController.getAtendimentoCorrente();
parametrosRelatorio.put("ATENDIMENTO_ID", atendimento.getId());
try {
System.out.println("......................" + nomeRelatorioJasper);
this.arquivoRetorno = relatorioUtil.geraRelatorio(parametrosRelatorio, nomeRelatorioJasper, nomeRelatorioSaida, tipoRelatorio);
} catch (Exception e) {
context.addMessage(null, new FacesMessage(e.getMessage()));
return null;
}
return arquivoRetorno;
}O stackTrace é:
22/07/2013 13:56:11 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [Faces Servlet] in context with path [/br.com.ergoclinweb] threw exception [null] with root cause
java.lang.NullPointerException
at org.primefaces.component.filedownload.FileDownloadActionListener.processAction(FileDownloadActionListener.java:58)
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.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)