Relatorios com pesquisa

Caros, tirei este exemplo no site, ele não gerar o relatório. tem como vcs me ajudar.

agradeço muito.

Marciojp18

/*

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• and open the template in the editor.
  */

package br.com.integrator.web;

import br.com.integrator.util.ConnectionFactory;

import com.mysql.jdbc.Connection;

import <a href="http://java.io">java.io</a>.<em>;

import <a href="http://java.net">java.net</a>.</em>;

import java.util.HashMap;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.servlet.<em>;

import javax.servlet.http.</em>;

import net.sf.jasperreports.engine.JasperRunManager;

/**
*

• @author Administrador
  */
  public class Relatorio extends HttpServlet {

  /**

  • Processes requests for both HTTP GET and POST methods.
  • @param request servlet request
  • @param response servlet response
  • @throws javax.servlet.ServletException
  • @throws java.io.IOException
    */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    ServletOutputStream servletOutputStream =
    response.getOutputStream();

  String caminho = “/relatorio/”;
  
  String relatorio = caminho +“relatorio.jasper”;
  
  InputStream reportStream = getServletConfig().
  
  getServletContext().
  
  getResourceAsStream(relatorio);
  

  Connection connection = null;

  String id = request.getParameter(“id”);
  try {

  connection =  (Connection) ConnectionFactory.getConnection( );
   HashMap<String, Integer> parameterMap = 
   	new HashMap<String, Integer>( );
  

  //o Nome do parâmetro e o valor é passado ao HashMap
  parameterMap.put(“ID”, Integer.parseInt(id));

  // envia o relatório em formato PDF para o browser
     response.setContentType("application/pdf");
     //para gerar o relatório em PDF
     // o método runReportToPdfStream foi usado
  

  // JasperRunManager.runReportToPdfStream(reportStream,
// servletOutputStream, parameterMap,connection);

  }
  
  catch (Exception ex) {
  
  Logger.getLogger(Relatorio.class.getName()).log(Level.SEVERE, null, ex);
  
  }
  
  finally{
  
  servletOutputStream.flush();
  
  servletOutputStream.close();
  
  try {
  

  ConnectionFactory.closeConnection(connection);
       } catch (Exception ex) {
           Logger.getLogger(Relatorio.class.getName()).log(Level.SEVERE, null, ex);
       }
  

  }

  }

  //
  /**

  • Handles the HTTP GET method.
  • @param request servlet request
  • @param response servlet response
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    processRequest(request, response);
    }

  /**

  • Handles the HTTP POST method.
  • @param request servlet request
  • @param response servlet response
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    processRequest(request, response);
    }

  /**

  • Returns a short description of the servlet.
    */
    public String getServletInfo() {
    return “Short description”;
    }
    //
    }