Boa noite galera, em meu computador eu criava o arquivo JAR, passava para outra computadores e funcionava normal, esses dias comprei um notebook e passei tudo para ele. Porém agora quando eu crio o JAR e executo ele nada relacionado com banco de dados funciona.. Procurei, procurei, procurei vi várias "soluções" e nenhuma resolveu a minha, então logo estou aqui pedindo a ajuda de vocês amigos do GUJ.
Resposta para algumas perguntas..
Sim o jar do MYSQL foi gerado na class-path
O programa roda normalmente no Netbeans
Segue o Stacktrace
run:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1117)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:355)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2461)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2498)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2283)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:822)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:404)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:317)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at DAO.Conexao.<init>(Conexao.java:26)
at View.Splash$1.run(Splash.java:31)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:241)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:259)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:305)
... 16 more
Minha string de conexão
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package DAO;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;
public class Conexao {
static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
static final String DATABASE_URL = "jdbc:mysql://127.0.0.1/salaobeleza";
public static String ok = "ok";
public static Connection con = null;
Statement stat = null;
public Conexao(){
try{
//Carrega classe de driver do Banco de Dados
Class.forName(JDBC_DRIVER);
//Estabelece conexão com o banco de dados
con = DriverManager.getConnection(DATABASE_URL,"root","");
//Criar Stament para consultar banco de dados
stat = con.createStatement();
ok = "ok";
}
catch(SQLException sqlException){
sqlException.printStackTrace();
ok="no";
JOptionPane.showMessageDialog(null, sqlException);
}
catch(ClassNotFoundException classNotFound){
classNotFound.printStackTrace();
ok="no";
JOptionPane.showMessageDialog(null, classNotFound);
}
}
public ResultSet Consulta(String texto) throws SQLException{
ResultSet rs = null;
//Consulta o banco de dados
rs = stat.executeQuery(texto);
return rs;
}
public void Atualiza(String texto) throws SQLException{
//Inserir no banco de dados
stat.executeUpdate(texto);
}
public void Exit() throws SQLException{
stat.close();
con.close();
}
}