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| public class JasperServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
log.info("[JasperServlet] ");
try {
String format = null;
String jasperFilename = null;
String database = null;
JasperReport jasperReport = null;
// paramètres à envoyer au rapport
Map<String, Object> parameters = new HashMap<String, Object>();
Enumeration<?> en = request.getParameterNames();
while (en.hasMoreElements()) {
String parameterName = (String) en.nextElement();
if (parameterName.equals("format")) {
format = request.getParameter(parameterName);
} else if (parameterName.equals("jasperFilename")) {
jasperFilename = request.getParameter(parameterName);
} else if (parameterName.equals("jdbcURI")) {
database = request.getParameter("jdbcURI");
if (database != null) {
if (database.length() == 0) {
database = null;
}
}
} else {
if (request.getParameter(parameterName).equals("null")) {
parameters.put(parameterName, "%");
} else {
parameters.put(parameterName, request.getParameter(parameterName));
}
log.info("[JasperServlet] [Param:" + parameterName + "]=" + request.getParameter(parameterName));
}
}
String realPath = getServletContext().getRealPath("/");
jasperFilename = realPath + jasperFilename;
log.info("[JasperServlet] jasperFilename=" + jasperFilename);
if (jasperFilename.toLowerCase().endsWith(".jrxml")) {
JasperDesign jasperDesign = null;
try {
FileInputStream in = new FileInputStream(jasperFilename);
jasperDesign = JRXmlLoader.load(in);
} catch (Exception e) {
e.printStackTrace();
}
if (jasperDesign == null) {
log.error("jasperDesign load failled");
return;
}
jasperReport = JasperCompileManager.compileReport(jasperDesign);
}
Database db = null;
if (database == null) {
db = new Database(log, databaseUrl, databaseName, databaseLogin, databasePassword, logDebug, false);
} else {
db = new Database(log, database, logDebug, false);
}
if (db.sqlConnect()) {
Connection connection = db.getConnection();
JasperPrint jasperPrint = null;
if (jasperReport == null) {
log.info("[JasperServlet] jasperFilename=" + jasperFilename);
FileInputStream in = new FileInputStream(jasperFilename);
jasperPrint = JasperFillManager.fillReport(in, parameters, connection);
} else {
jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, connection);
}
JRExporter exporter = getExporter(format, response);
ServletOutputStream outStream = response.getOutputStream();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, outStream);
exporter.exportReport();
outStream.flush();
outStream.close();
} else {
ServletOutputStream outStream = response.getOutputStream();
PrintWriter pw = new PrintWriter(outStream);
pw.write("<html>");
pw.write("<h1>SQL Connect problem:</h1>");
pw.write("<hr />");
pw.write(db.getErrorMessage());
pw.write("</html>");
pw.flush();
pw.close();
outStream.flush();
outStream.close();
}
log.info("[JasperServlet] job done");
} catch (Exception e) {
e.printStackTrace();
log.error("[JasperServlet] exception:" + e.toString());
ServletOutputStream outStream = response.getOutputStream();
PrintWriter pw = new PrintWriter(outStream);
pw.write("<html>");
pw.write("<h1>" + e.toString() + "</h1>");
pw.write("<hr />");
e.printStackTrace(pw);
pw.write("</html>");
pw.flush();
pw.close();
outStream.flush();
outStream.close();
}
}
public JRExporter getExporter(String format, HttpServletResponse response) {
JRExporter exporter = null;
if (format.equalsIgnoreCase("html")) {
exporter = new JRHtmlExporter();
exporter.setParameter(JRHtmlExporterParameter.IS_OUTPUT_IMAGES_TO_DIR, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.IMAGES_DIR_NAME, "./images/jasper_tmp/");
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "images/jasper_tmp/");
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
exporter.setParameter(JRHtmlExporterParameter.OUTPUT_FILE_NAME, "report.html");
response.setHeader("Content-Disposition", "inline;filename=rapport.html");
response.setContentType("text/html");
} else if (format.equalsIgnoreCase("xls")) {
exporter = new JRXlsExporter();
exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.TRUE);
exporter.setParameter(JRXlsExporterParameter.IS_DETECT_CELL_TYPE, Boolean.TRUE);
exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.OUTPUT_FILE_NAME, "report.xls");
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition", "inline;filename=rapport.xls");
} else if (format.equalsIgnoreCase("pdf")) {
exporter = new JRPdfExporter();
exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.TRUE);
exporter.setParameter(JRXlsExporterParameter.IS_DETECT_CELL_TYPE, Boolean.TRUE);
exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
exporter.setParameter(JRHtmlExporterParameter.OUTPUT_FILE_NAME, "report.pdf");
response.setHeader("Content-Disposition", "inline;filename=rapport.pdf");
response.setContentType("application/pdf");
}
return exporter;
}
} |
