Printing of table data with a button

Question

I have an application that creates a table with data from a database. I would like to put a button at the top of the page that would allow the user to print the table in paginated format. Does anyone have any sample code or directions as to how I could accomplish this. As an FYI, I am new to JSP and Creator studio.

Answer 1

Example code in the button is like this (I use oracle 10g, and call stored procedure to get the result set. In your case, maybe you just use simple view/table, give the connection to the jasper, and let the jasper query the table).
public String printButton_action() {
        FacesContext myFaces = FacesContext.getCurrentInstance() ;
        ServletContext svContext = (ServletContext) myFaces.getExternalContext().getContext();
        HttpServletResponse response = (HttpServletResponse) myFaces.getExternalContext().getResponse();
        File reportFile = new File(svContext.getRealPath("/report.jasper"));
        if (reportFile.exists()) {
            ResultSet rs;
            Integer totrec;
            // prepare parameters, connection... etc.
            try{
                java.sql.Date bdate = new java.sql.Date(begCalendar.getSelectedDate().getTime());
                java.sql.Date edate = new java.sql.Date(endCalendar.getSelectedDate().getTime());
                Connection con = getSessionBean1().getOracleconnection();
                CallableStatement stmt = con.prepareCall("{call webcrpackage.TtcHarian(?,?,?,?)}");
                stmt.setDate(1, bdate);
                stmt.setDate(2, edate);
                stmt.registerOutParameter(3, OracleTypes.NUMBER); //REF CURSOR
                stmt.registerOutParameter(4, OracleTypes.CURSOR); //REF CURSOR
                stmt.execute();
                rs = (ResultSet) stmt.getObject(4);
                totrec = Integer.valueOf(stmt.getBigDecimal(3).intValue());
            } catch(Exception e) {
                error(e.getMessage());
                return null;
            try {
                JRResultSetDataSource dsource = new JRResultSetDataSource(rs) ;
                // execute jasper
                byte[] bytes = null ;
                // prepare jasper parameter!!
                Map parameters = new HashMap();
                parameters.put("comname", getSessionBean1().getComname());
                parameters.put("comdivision", getSessionBean1().getComdivision());
                parameters.put("begdate", begCalendar.getSelectedDate());
                parameters.put("enddate", endCalendar.getSelectedDate());
                parameters.put("totalrecord", totrec);
                bytes = JasperRunManager.runReportToPdf(reportFile.getPath(), parameters, dsource);
                response.setContentType("application/pdf");
                ServletOutputStream ouputStream = response.getOutputStream();
                ouputStream.write(bytes, 0, bytes.length);
                ouputStream.flush();
                ouputStream.close();
            } catch (Exception ex) {
                error(ex.getMessage());
                return null;
        } else {
            error("Report file doesn't exist!");
        return null;
    }Long journey, search this forum on how to deploy jasper in jsc, etc..etc.
Hope that helps.