JSF with Jasper Reports

Question

Hi,
I am a new bie to JSF and also Jasper Reports.
I Have created a JSF page where by passing fromDate and toDate from UI passed as a parameter to Jasperreport to generate a report.
Report is generated as a pdf but my requirement is i want to view the pdf in the browser.
I used with runReportToPdf(), but with this i dont no how to get the servletConfig whereby in some code i got the code to get the servletConfig and servletContext and passing the .jasper file to convert it as a inputStream or a File.
I think this is not the proper way to view the things in browser bcoz i want to show the Excel and CSV report also in the browser.
Could anyone Pls help me in this. Is there any other way to do this.
My Code:
<code>
public void execute()
     try
          FacesContext context = FacesContext.getCurrentInstance();
          Object ObjTest = context.getExternalContext().getSessionMap().get("awardCodeMast");
          AwardCodeMast aObj = (AwardCodeMast)ObjTest;
                    DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
                    Date fromDate1 = aObj.getEffectiveFromDate();
                    String s1 = df.format(fromDate1);
                    System.out.println("#####################"+s1);
          Date toDate1 = aObj.getEffectiveToDate();
          String s2 = df.format(toDate1);
          System.out.println("#####################"+s2);
                    // Started with Jasper Reports
          JasperReport jasperReport;
          JasperPrint jasperPrint;
          JRResultSetDataSource obj;
          JasperDesign jasperDesign;
          JRDataSource jr1;
          String fromDate = s1;
          String toDate = s2;
          Class.forName("com.mysql.jdbc.Driver");
          Connection con1=DriverManager.getConnection("jdbc:mysql://HARUNS-ATHITHI.ITCINFOTECH.COM/pba","root","root");
          Statement stmt1=con1.createStatement();
          Map<String, Serializable> parameters = new HashMap<String, Serializable>();
          parameters.put("fromDate", fromDate);
          parameters.put("toDate", toDate);
          System.out.println("Put...........");
          String ss = context.getExternalContext().getRequestServletPath();
          System.out.println("SS : "+ss+"...............");
          byte[] bytes = null;
          ServletOutputStream outstream = null;
          InputStream reportStream = context.getExternalContext().getResourceAsStream("D:/Acegi Security Framework/Sample_WS1/PBA/WebContent/reports/pdffrmt/AwardCode_report_1.jasper");
          HttpServletResponse response = (HttpServletResponse)context.getExternalContext().getResponse();
          outstream = response.getOutputStream();     
          ExternalContext extContext = context.getExternalContext();
          ServletContext servletContext = (ServletContext) extContext.getContext();
          File reportFile = new File("D:/Acegi Security Framework/Sample_WS1/PBA/WebContent/reports/pdffrmt/AwardCode_report_1.jasper");
          jasperDesign = JasperManager.loadXmlDesign("D:/Acegi Security Framework/Sample_WS1/PBA/WebContent/reports/pdffrmt/AwardCode_report_1.jrxml");
     System.out.println("1..................");
     jasperReport = JasperCompileManager.compileReport(jasperDesign);
     System.out.println("2...................");     
     JasperRunManager.runReportToPdfStream(reportStream, outstream, parameters, con1);
     jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, con1);
     System.out.println("3...............");
     String ss1 = (String)context.getExternalContext().getRequestPathInfo();
     System.out.println(ss1+"............................");
     System.out.println("Report generated....................");
     response.setContentType("application/pdf");
     response.setContentLength(bytes.length);
     System.out.println("Setting content type..................");
     System.out.println("getting output Stream...........");
     response.setContentLength(bytes.length);
     System.out.println("setting the context length...........");
     JasperRunManager.runReportToPdfStream(reportStream, outstream,parameters, con1);
     //outstream.write(bytes);
     System.out.println("writing byte array.............");
     outstream.flush();
     System.out.println("flushing out..............");
     outstream.close();
     ret_sta = "Success";
     }catch(Exception e){System.out.println(e);}
     System.out.println(ret_sta+".....................");
     FacesContext context = FacesContext.getCurrentInstance();
context.responseComplete();
</code>
Kindly help me, i would be very thankful to u.
Thanks,
Ambika.

Answer 1

Hi,
I want to display a pdf through a web browser. I got it to work with my one report but my other one do not want to work.
Here is my code.
public void executeShiftReport(Calendar dateOfReport) {
try {
Calendar calMrng = new GregorianCalendar(dateOfReport.get(Calendar.YEAR), dateOfReport.get(Calendar.MONTH), dateOfReport.get(Calendar.DAY_OF_MONTH), 06, 00);
Date reportDate = dateOfReport.getTime();
Date dateMrng = calMrng.getTime();
JasperPrint jasperPrint;
Connection conn = establishConnection();
//the paramaters of the report will be saved within the hashmap
HashMap jasParam = new HashMap();
jasParam.put("fromDateMorning", new Timestamp(dateMrng.getTime()));
jasParam.put("Date", reportDate);
// adds 1 day to the calender to get tomorrows date for night shift ending
calMrng.add(Calendar.DAY_OF_MONTH, 1);
Date dateMoreMrng = calMrng.getTime();
jasParam.put("toDateMorning", new Timestamp(dateMoreMrng.getTime()));
File file = new File("E:/Projects/BranSystems Internal/BranSupportLog/reports/");
jasperPrint = JasperFillManager.fillReport(new FileInputStream(new File(file, "morningShift.jasper")), jasParam, conn);
// JasperExportManager.exportReportToPdf(jasperPrint);
// JasperExportManager.exportReportToHtmlFile(jasperPrint, "E:/Projects/BranSystems Internal/BranSupportLog/reports/morningShift.html");
byte[] bytes = JasperExportManager.exportReportToPdf(jasperPrint);
FacesContext context = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
// let the pdf display in the same window with 'inline',
response.setHeader("Content-disposition", "inline;filename=morningShift.pdf;");
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
response.getOutputStream().write(bytes);
response.flushBuffer();
context.responseComplete();
} catch (JRException ex) {
Logger.getLogger(SupportMBean.class.getName()).log(Level.SEVERE, null, ex);
} catch (FileNotFoundException ex) {
Logger.getLogger(SupportMBean.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(SupportMBean.class.getName()).log(Level.SEVERE, null, ex);
}