Pdf report..need argent help pls....

Question

hi everybody,
Pls. tell me some solution of this problem i am really tired with this problem.I am using iText for pdf report.And using table in the report.But if i am printing 2 or 3 records,it's working fine but if i am printing record directly for database,it show me this error...
ExceptionConverter: java.io.IOException: The document has no pages.
     at com.lowagie.text.pdf.PdfPages.writePageTree(Unknown Source)
     at com.lowagie.text.pdf.PdfWriter.close(Unknown Source)
     at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)
     at com.lowagie.text.Document.close(Unknown Source)
     at org.apache.jsp.Noname1$jsp._jspService(Noname1$jsp.java:160)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
     at java.lang.Thread.run(Thread.java:534)
and here is my code:
<%     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     conn = DriverManager.getConnection ( "jdbc:odbc:unsoda_project" ,"unsoda_webproject" ,"project");
str="select * from general_soil where FAMILY like 'sandy, mixed frigid Pachic Haplaboroll'";
     pst3 = conn.prepareStatement(str);
     rs3 = pst3.executeQuery();
Document document = new Document();
try {
PdfWriter.getInstance(document, new FileOutputStream("test1.pdf"));
document.open();
Table datatable = new Table(13);
datatable.setPadding(4);
datatable.setSpacing(0);
Cell cell = new Cell(new Phrase("UNSODA DATABASE",FontFactory.getFont(FontFactory.HELVETICA, 24, Font.BOLD)));
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setLeading(30);
cell.setColspan(13);
cell.setBorder(Rectangle.NO_BORDER);
cell.setBackgroundColor(new Color(0xC0, 0xC0, 0xC0));
datatable.addCell(cell);
               datatable.setDefaultCellBorderWidth(2);
datatable.setDefaultHorizontalAlignment(Element.ALIGN_CENTER);
datatable.setDefaultColspan(13);
               datatable.addCell("GENERAL PROPERTIES");
               datatable.setDefaultCellBorderWidth(2);
datatable.setDefaultHorizontalAlignment(1);
               datatable.setDefaultRowspan(1);
datatable.setDefaultColspan(1);
datatable.addCell("Family");
datatable.addCell("Series");
datatable.addCell("Texture");
               datatable.addCell("Structure");
datatable.addCell("Depth Upper");
datatable.addCell("Depth Lower");
               datatable.addCell("Horizon");
               datatable.addCell("Depth GWater");
               datatable.addCell("Location");
               datatable.addCell("Site ID");
               datatable.addCell("Annual Rain");
               datatable.addCell("Avg Temp in Jan");
               datatable.addCell("Avg Temp in Jul");
               datatable.endHeaders();
               datatable.setDefaultCellBorderWidth(1);
datatable.setDefaultRowspan(1);
               while(rs3.next()){
                    datatable.addCell(rs3.getString("family"));
                    datatable.addCell(rs3.getString("Series"));
                    datatable.addCell(rs3.getString("Texture"));
                    datatable.addCell(rs3.getString("Depth Upper"));
               datatable.addCell(rs3.getString("Depth Lower"));
                    datatable.addCell(rs3.getString("Horizon"));
                    datatable.addCell(rs3.getString("Depth GWater"));
                    datatable.addCell(rs3.getString("Location"));
                    datatable.addCell(rs3.getString("Site ID"));
                    datatable.addCell(rs3.getString("Annual Rain"));
                    datatable.addCell(rs3.getString("Avg Temp in Jan"));
                    datatable.addCell(rs3.getString("Avg Temp in Jul"));
               document.add(datatable);
catch(Exception e) {
e.printStackTrace();
document.close();
%>
pls. tell me some solution.
Thanks
Sonika

Answer 1

I found a solution to this problem. You need to 'fragment' your table the following way:
Add the existing table to the document (after, say, 50 rows)
Remove all rows from the existing table
Set skipFirstHeader() to true (or the header will repeat)
Add new rows to the table until you hit the threshhold
At the end, add the final table fragment to the documentThe issue apparently stems from memory management within i-Text and the amount of data that can be held in a stream. You can find a code example at:
http://itext.sourceforge.net/examples/com/lowagie/examples/objects/tables/pdfptable/FragmentTable.java
Happy rendering.
- Saish