Trying to generate a pdf with jasper reports

Question

Fellas,
i hav trying to generate a pdf with jasper reports, but i cant. I create a file .jasper with iReports. This is my code:
emite.java
package utilitarios;
//import net.sf.jasperreports
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.view.JasperViewer;
import java.sql.*;
import java.util.*;
import javax.swing.*;
import java.util.HashMap;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class emitebl {
private static Connection getConnection( ) throws ClassNotFoundException, SQLException{
String driver = "org.postgresql.Driver";
String url = "jdbc:postgresql://localhost/sist";
String user = "usuario";
String password = "";
Class.forName(driver);
Connection con = DriverManager.getConnection( url, user, password );
return con;
public void geraRelatorio( ) throws JRException, Exception{
Connection con = getConnection( );
Statement stm = con.createStatement( );
String query = "SELECT * FROM emissaobl WHERE id=4";
ResultSet rs = stm.executeQuery(query);
JRResultSetDataSource jrRS = new JRResultSetDataSource(rs);
Map parameters = new HashMap();
JasperFillManager.fillReportToFile("emitebl.jasper",parameters,jrRS);
JasperExportManager.exportReportToPdfFile("emitebl.jrprint");
JasperViewer.viewReport("emissao_bl.pdf",false);
} emissao.jsp:
<%@ page import="utilitarios.*" %>
<%
new emitebl().geraRelatorio();
%>Following the error message exception:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: emitebl.jasper
     org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846)
     org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
     org.apache.jsp.emissaobl.exportapdf_jsp._jspService(exportapdf_jsp.java:76)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)
root cause
net.sf.jasperreports.engine.JRException: emitebl.jasper
     net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:73)
     net.sf.jasperreports.engine.JasperFillManager.fillReportToFile(JasperFillManager.java:270)
     utilitarios.emitebl.geraRelatorio(emitebl.java:37)
     org.apache.jsp.emissaobl.exportapdf_jsp._jspService(exportapdf_jsp.java:54)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)where i hav to put the .jasper file?

Answer 1

Hi,
If you have placed your .jrxml file say in C:\reports, and when you use compileReportToFile(jrxmlFileName), then the jasper file will be created in the same directory C:\report with the same file name with .jasper extension. If you want a pdf report then specify the same location and file name with '.pdf' extension as destination .
Hope this helps