ola!! sou iniciante.... instalei o jasperreport e o ireport... gerei relatorios de varios tipos, com conexao ao banco do firebird... tudo funciona bem... achei um minetutorial q mostra como gerar o relatorio atravez d um…

blz!!! o negocio era clica invertido em libraries no netbeans e adicionar o jar do jasperreports… so q eu vi q nesse jar tenho outras bibliotecas as net.sf.jasperreports… uma duvida me veio agora… essas bibliotecas n são somente para gerar relatorios para web??? c alguem tem algum exemplo bom ai d c

fiz funcionar + ou - ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) teste.java Created on 10 de Janeiro de 2007, 10:23 To change this template, choose Tools | Template Manager and open the template in the editor. */ package rel; /* pacotes necessários &

em java avançado achei outro topico sobre esse ocorrido… no 15989 os q tiverem o mesmo problema podem da uma olhada!!! t+

Problema com pacotes do jasper

fiz funcionar + ou -

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teste.java
Created on 10 de Janeiro de 2007, 10:23
To change this template, choose Tools | Template Manager
and open the template in the editor.
*/

package rel;

/* pacotes necessários <em>/

import net.sf.jasperreports.engine.</em>;

import net.sf.jasperreports.view.JasperViewer;

import java.sql.<em>;

import java.util.</em>;

/**
*

@author homisinho
*/
public class teste {

ResultSet rs;

Statement stm;

Connection con;

private static Connection getConnection( ) throws

ClassNotFoundException, SQLException

{

String driver = “org.firebirdsql.jdbc.FBDriver”;

String url = “jdbc:firebirdsql:localhost/3050:c://BANCO.gdb”;

String user = “SYSDBA”;

String password = “masterkey”;

Class.forName(driver);

Connection con = DriverManager.getConnection( url, user, password );

return con;

}

public void geraRelatorio( ) throws JRException, Exception

{

try{

con = getConnection( );

stm = con.createStatement( );

String query = “select CODLISTA,CODIGO,NOME from produto”;

rs = stm.executeQuery( query );

}

catch (SQLException e) {

System.out.println (“A Consulta não Funcionou”);

System.out.println (e.getMessage ());

}

JRResultSetDataSource jrRS = new JRResultSetDataSource( rs );
Map parameters = new HashMap();
JasperFillManager.fillReportToFile("Relatorio.jasper", parameters, jrRS);
JasperExportManager.exportReportToPdfFile( "ra.jrprint" );
JasperExportManager.exportReportToHtmlFile("ra.jrprint");    
JasperViewer.viewReport( "ra.html", false);

}

/** Creates a new instance of teste */
public teste() {
    
}

}

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unico problema e q ele ta dando um erro…

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java.io.StreamCorruptedException: invalid stream header

at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:763)

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:278)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:87)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:64)

at net.sf.jasperreports.view.JRViewer.loadReport(JRViewer.java:1287)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:201)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:172)

at net.sf.jasperreports.view.JasperViewer.<init>(JasperViewer.java:140)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:397)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:328)

at rel.teste.geraRelatorio(teste.java:69)

at Main.main(Main.java:32)

NESTED BY :

java.io.StreamCorruptedException: invalid stream header

at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:763)

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:278)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:87)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:64)

at net.sf.jasperreports.view.JRViewer.loadReport(JRViewer.java:1287)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:201)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:172)

at net.sf.jasperreports.view.JasperViewer.<init>(JasperViewer.java:140)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:397)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:328)

at rel.teste.geraRelatorio(teste.java:69)

at Main.main(Main.java:32)

NESTED BY :

net.sf.jasperreports.engine.JRException: Error loading object from file : D:\Engenharia1 - 2007\04 - java\testes\rel\build\classes\rel\ra.html

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:92)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:64)

at net.sf.jasperreports.view.JRViewer.loadReport(JRViewer.java:1287)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:201)

at net.sf.jasperreports.view.JRViewer.<init>(JRViewer.java:172)

at net.sf.jasperreports.view.JasperViewer.<init>(JasperViewer.java:140)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:397)

at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:328)

at rel.teste.geraRelatorio(teste.java:69)

at Main.main(Main.java:32)

Caused by: java.io.StreamCorruptedException: invalid stream header

at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:763)

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:278)

at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:87)

… 9 more

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e n ta abrindo o HTML na tela!!!
alguem sabe o q pode ta errado???
e c souber me dizer alguma outra forma d gerar um relatorio e abrir automaticamente na tela eu agradeço!!!

3 Respostas

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