用一些不起作用的SQL函数java

Question

我创建了此函数以生成pdf。它可以正常工作，但知道我有一个更困难的脚本，不像功能中的脚本以及尝试使用它时那样简单。它不起作用

@RequestMapping(value = "/generatePDF", method = RequestMethod.GET)
    public @ResponseBody void generatePDF(@RequestParam Long idContrat, HttpServletResponse response)
            throws SQLException, ClassNotFoundException, JRException {
        Connection conn = null;
        Contrat contrat = contratRepo.findOne(idContrat);
        try {
            String dbURL = "jdbc:postgresql://localhost/interim";
            String user = "postgres";
            String pass = "root";
            conn = DriverManager.getConnection(dbURL, user, pass);

            BufferedInputStream jasperStream = (BufferedInputStream) this.getClass()
                    .getResourceAsStream("/test1.jrxml");
            JasperDesign design = JRXmlLoader.load(jasperStream);
            JRDesignQuery newQuery = new JRDesignQuery();
            String sql = "SELECT interim.contrat.con_num_contrat,\r\n" + "  interim.contrat.con_date_contrat,\r\n"
                    + " interim.contrat.con_lieu_travail,\r\n" + "  interim.contrat.con_essai,\r\n"
                    + " interim.client.clt_type_client,\r\n" + "    interim.client.clt_raison_sociale,\r\n"
                    + " interim.client.clt_nom_voie,\r\n" + "   interim.agence.ape,\r\n"
                    + " interim.agence.libelle,\r\n" + "    interim.agence.siret,\r\n"
                    + " interim.entreprise.effectif,\r\n" + "   interim.entreprise.ville,\r\n"
                    + " interim.entreprise.photo,\r\n" + "  interim.entreprise.formjuridique\r\n"
                    + "FROM interim.contrat\r\n" + "    INNER JOIN interim.client ON \r\n"
                    + "  interim.contrat.id_client = interim.client.id \r\n" + "    INNER JOIN interim.agence ON \r\n"
                    + "  interim.contrat.id_agence = interim.agence.id \r\n"
                    + "  AND interim.client.id_agence = interim.agence.id \r\n"
                    + "  AND interim.client.id_agence = interim.agence.id \r\n"
                    + " INNER JOIN interim.entreprise ON \r\n"
                    + "  interim.agence.id_entreprise = interim.entreprise.id\r\n"
                    + "  WHERE interim.contrat.id =$P{id_contrat}";

            newQuery.setText(sql);
            design.setQuery(newQuery);
            JasperReport report = JasperCompileManager.compileReport(design);
            Map<String, Object> parameterMap = new HashMap<>();
            // List<Contrat> contrats = contratRepo.findAll();
            // JRDataSource jrDataSource = new JRBeanCollectionDataSource(contrats, false);
            parameterMap.put("id_contrat", idContrat);

            JasperPrint jasperPrint = JasperFillManager.fillReport(report, parameterMap, conn);
            response.setContentType("application/pdf");
            response.setHeader("Content-Disposition", "inline: filename = test1.pdf");

            final ServletOutputStream outputStream = response.getOutputStream();
            JasperExportManager.exportReportToPdfStream(jasperPrint, outputStream);
        } catch (JRException e) {
            e.printStackTrace();
            logger.info("test file test1.jrxml");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }