Problema com servlet

Programação Java
#1

[b]Galera tenho esse servlet para gerar relatorio em xls, mas quanto chamo ele dá um erro ao gerar o relatorio(chama o tratamento de excessão) dizendo que o relatorio é null.Porem não consigo ver aonde está o erro na geração do relatorio.

Se puderem me ajudar valeu!![/b]

public class ServletXls extends HttpServlet {

	@In(create = true)
	FuncionarioList funcionarioList;
	
	String reportUrl="/WEB-INF/relatoriosJasper/Relatorio_Funcionarios.jasper";

	protected void doPost(HttpServletRequest req, HttpServletResponse response)
	throws ServletException, IOException {

		Map parametros = new HashMap();

		try {

		//	JRBeanCollectionDataSource ds = new JRBeanCollectionDataSource(funcionarioList.getResultList());
  
			  
			FacesContext facesContext = FacesContext.getCurrentInstance();  
			HttpServletRequest request = (HttpServletRequest) facesContext.getExternalContext().getRequest();  
			JasperReport reportUrlReal = (JasperReport)JRLoader.loadObject(request.getRealPath(reportUrl));
			
			JasperPrint jasperPrint = JasperFillManager. fillReport(reportUrlReal, parametros);

			JRXlsExporter exporter = new JRXlsExporter();   
			ByteArrayOutputStream output = new ByteArrayOutputStream();   
			exporter.setParameter(JRXlsExporterParameter.JASPER_PRINT, jasperPrint);   
			exporter.setParameter(JRXlsExporterParameter.OUTPUT_STREAM, output);   
			exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);   
			exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.TRUE);   
			exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE);   
            exporter.exportReport();
            
			byte[] bytes = output.toByteArray();   
			response.setContentType("application/vnd.ms-excel"); 
			response.setHeader("Content-disposition","attachment; filename=file.xls");
			response.setContentLength(bytes.length);   
			output.close();   
			OutputStream ouputStream = response.getOutputStream();   
			ouputStream.write(bytes, 0, bytes.length);   
			ouputStream.flush();   
			ouputStream.close();  


		} catch (Exception e) {
			response.getWriter().println("Erro ao gerar o relatório: " + e.getMessage());
			e.printStackTrace();
		}
	}


protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1)

	throws ServletException, IOException {
	doPost(arg0, arg1);
}



}
#2

Desculpem galera mas essa parte não está comentada rsrs

#3

coloca o stackTrace p/ podermos ver o erro.

[]´s

#4

3:44:11,531 ERROR [STDERR] java.lang.NullPointerException 13:44:11,532 ERROR [STDERR] at RelatoriosEJB.ServletXls.doPost(ServletXls.java:48) 13:44:11,532 ERROR [STDERR] at RelatoriosEJB.ServletXls.doGet(ServletXls.java:83) 13:44:11,532 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) 13:44:11,532 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 13:44:11,532 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 13:44:11,532 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 13:44:11,532 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) 13:44:11,532 ERROR [STDERR] at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,533 ERROR [STDERR] at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) 13:44:11,533 ERROR [STDERR] at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,533 ERROR [STDERR] at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) 13:44:11,534 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 13:44:11,534 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 13:44:11,534 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 13:44:11,534 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) 13:44:11,534 ERROR [STDERR] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) 13:44:11,534 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) 13:44:11,535 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 13:44:11,535 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 13:44:11,535 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) 13:44:11,535 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 13:44:11,535 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) 13:44:11,535 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 13:44:11,535 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 13:44:11,535 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) 13:44:11,535 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)

#5

Parece que está reclamando dessa linha de comando:

#6

Alguem teria idea do que seja ?

#7

O método doPost já recebe o request como parametro para que você quer pegar o requesto do faces ?

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

Já tentou usar algo do tipo.

Thread.currentThread().getContextClassLoader().getResource(......)

#8