JSP + jasper?

Front-end
#1 

<%@ page import="java.util.*, java.sql.*"%>
<%@ page import="net.sf.jasperreports.engine.*" %>
<%@ page import="java.io.*" %>

<%

  File reportFile = new File(application.getRealPath("relatorioTeste.jasper"));

  
  
  Class.forName("net.sourceforge.jtds.jdbc.Driver"); 
  Connection conn = DriverManager.getConnection("jdbc:jtds:sqlserver://pub:1433/Teste","ss","ss"); 
  Statement stmt = conn.createStatement();
  
  ResultSet rs = stmt.executeQuery("Select * from operador");
  
  Map parameters = new HashMap();
  
  while (rs.next()) {
      out.println(rs.getString("oper_id"));
      parameters.put("oper_nome", "XX");
  }
  
  byte[] bytes = JasperRunManager.runReportToPdf(reportFile.getPath(), parameters, conn);
  

  response.setContentType("application/pdf");
  response.setContentLength(bytes.length);
  ServletOutputStream ouputStream = response.getOutputStream();
  ouputStream.write(bytes, 0, bytes.length);
  ouputStream.flush();
  ouputStream.close();

%>

Ola pessoal estou com problemas aki executei essa classe mais me da
erro…
Preciso de opnioes…

javax.servlet.ServletException: Error executing SQL statement for report : relatorioTeste
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
	org.apache.jsp.testeJasper_jsp._jspService(testeJasper_jsp.java:86)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802
#2

foi resolvido mais… eu quero mostrar o resultado no jsp mais ele exporta para pdf

Alguem pode me ajudar…

#3