(ajuda) com relatorio usando ireport, jasper e java

Olá senhores,
estou com um problema na minha classe q chama um relatório.
ps. essa classe foi criada pela celia colega aqui do guj, pedi p/ mandar uma funcionando p/ mim ai ela mandou adaptei p/ k e deu arquivo nulo sendo q estou passando o local correto do relatorio.
segue codigo:
import br.gov.treap.util.Conexao;   
  
import java.io.*;   
import java.sql.*;   
import java.util.*;   
import javax.servlet.*;   
import javax.servlet.http.*;   
  
  
import net.sf.jasperreports.engine.*;   
import net.sf.jasperreports.engine.util.JRLoader;   
  
/**  
* Servlet implementation class ServletDepartamento  
*/   
public class RelatorioTeste extends HttpServlet   
{   
  
    private static final long serialVersionUID = 1L;   
    private Connection con = null;   
  
    protected void processRequest (HttpServletRequest request, HttpServletResponse response)   
    throws Exception   
    {   
  
        con = Conexao.getConnection();   
  
        try   
        {   
               
  
          //ServletContext context = getServletContext();   
  
          byte[] bytes = null;   
  
          try {   
          //JasperReport relatorioJasper = (JasperReport) JRLoader.loadObject(context.getRealPath("./relatorios/relatorio.jasper"));   
          JasperReport relatorioJasper = (JasperReport) JRLoader.loadObject("C:\\DESENVOLVIMENTO\\PROJETOS\\cieAdmChamado2\\web\\relatorios\\relatorio.jasper");   
  
          Map<String, Object> params = new HashMap<String, Object>();   
          //params.put("DATA", dataServidor);   
          //params.put("MES_ANO_INI", dataInicial);   
          //params.put("MES_ANO_FIM", dataFinal);   
          //params.put("OBSERVACOES", "NÃO CONSTA AS DESPESAS GERADAS COM MATERIAIS DE ORTESE E PROTESE");   
  
          //bytes = JasperRunManager.runReportToPdf(relatorioJasper, params, ds);   
          bytes = JasperRunManager.runReportToPdf(relatorioJasper, params, Conexao.getConnection());   
          }   
          catch (JRException e)   
          {   
          e.printStackTrace();   
          }   
  
  
          if (bytes != null && bytes.length > 0)   
          {   
          response.setContentType("application/pdf");   
          response.setContentLength(bytes.length);   
  
          ServletOutputStream ouputStream = response.getOutputStream();   
          ouputStream.write(bytes, 0, bytes.length);   
          ouputStream.flush();   
          ouputStream.close();   
          //gerou = true;   
          }   
      }   
                  catch (Exception e)   
                {   
                    PrintWriter out = response.getWriter();   
                    out.println("<HTML><BODY><h2>");   
                    out.println("ERRO: <BR><span style=\"color: #FF0000\">");   
                    out.println(e.getMessage());   
                    out.println("</span></h2><BODY><HTML>");   
                    e.printStackTrace();   
  
  
                }   
                  finally   
                {   
                    //PrintWriter out = response.getWriter();   
                    //out.close();   
                }   
  
            }   
  
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {   
        // TODO Auto-generated method stub   
        try   
        {   
            this.processRequest(request, response);   
        } catch (Exception e)   
        {   
            // TODO Auto-generated catch block   
            e.printStackTrace();   
        }   
    }   
  
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {   
        // TODO Auto-generated method stub   
        try   
        {   
            this.processRequest(request, response);   
        }   
        catch (Exception e)   
        {   
            // TODO Auto-generated catch block   
            e.printStackTrace();   
        }   
    }   
  
}
espero pela ajuda dos senhores
abraço
1 Resposta

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