Como Vizualizar o relatorio no Browser

Jasper.export(
						parametros, 
						list, 
						<caminho para teu relatorio>, 
						<caminho para salvar o relatorio>,
						"pdf"
				);

                    // redirect para <caminho para salvar o relatorio>

<%
Gerador g = new Gerador();

g.exibe(config.getServletContext(), request, response);  
%>

package reports;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;

public class Gerador {

	public void exibe(ServletContext context, HttpServletRequest request, HttpServletResponse response){
		try{
			ByteArrayOutputStream baos = new ByteArrayOutputStream();

			JasperPrint print = null;
			
			JRDataSource jrds = new JRBeanCollectionDataSource(GeraRelatorios.carregaItens());

			Map parametros = new HashMap();

                        print = JasperFillManager.fillReport("\\ caminho do jasper", parametros, jrds);

			baos.write(JasperExportManager.exportReportToPdf(print));
			
			response.reset();
			response.setContentType("application/pdf");
			response.setContentLength(baos.size());
			
			OutputStream out = response.getOutputStream();
			baos.writeTo(out);
			out.flush();
			out.close();
			baos.close();
	    } catch(Exception ex){
	        ex.printStackTrace();
	    }
	}
}