Relatorios com pesquisa

Programação Java
#1

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

agradeço muito.

Marciojp18

/*

  • To change this template, choose Tools | Templates
  • and open the template in the editor.
    */

package br.com.integrator.web;

import br.com.integrator.util.ConnectionFactory;
import com.mysql.jdbc.Connection;
import java.io.;
import java.net.;

import java.util.HashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.;
import javax.servlet.http.;
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”;
      }
      //
      }
#2