Jasper Report only works on local application, does not work on Web Server

My impression report is only working in the local application, using connection with Hibernate, when I try to run on the server it does not work due to lack of connection to the database, how can I use a connection without being using Hibernate and that works in the Web Application?

Report.java

public void imprimirVenda() {
    Map<String, Object> parametros = new HashMap<>();
    FacesContext facesContext = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse) facesContext.getExternalContext().getResponse();
    RelatorioVenda executor = new RelatorioVenda("/impressao/imp_venda.jasper",
            response, parametros, "Impressão da Venda.pdf", this.vendaMB.getVenda().getIdvenda());
    Session session = manager.unwrap(Session.class);
    session.doWork(executor);
    facesContext.responseComplete();
}

RelatorioVenda.java

  public class RelatorioVenda implements Work {

private final String caminhoRelatorio;
private final HttpServletResponse response;
private final Map<String, Object> parametros;
private final String nomeArquivoSaida;
private final Long id;

public RelatorioVenda(String caminhoRelatorio,
        HttpServletResponse response, Map<String, Object> parametros,
        String nomeArquivoSaida, Long id) {
    this.caminhoRelatorio = caminhoRelatorio;
    this.response = response;
    this.parametros = parametros;
    this.nomeArquivoSaida = nomeArquivoSaida;
    this.id = id;
}

@Override
public void execute(Connection connection) throws SQLException {
    try {
        String relatorioStream = servlet.getRealPath(this.caminhoRelatorio);

        parametros.put("idvenda", id );
        JasperPrint print = JasperFillManager.fillReport(relatorioStream, this.parametros, connection);

        Exporter<ExporterInput, PdfReportConfiguration, PdfExporterConfiguration, OutputStreamExporterOutput> exportador = new JRPdfExporter();
        exportador.setExporterInput(new SimpleExporterInput(print));
        exportador.setExporterOutput(new SimpleOutputStreamExporterOutput(response.getOutputStream()));

        response.setContentType("application/pdf");

        exportador.exportReport();
    } catch (Exception e) {
        throw new SQLException("Erro ao executar relatório ", e);
    }
}

}

Someone helps me make another connection to the Database. Thanks in advance