[Problema MySql]

Assuntos Gerais
#1 
package br.com.sisvenda.acessobd;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 *
 * @author ken420
 */
public class AcessoMySql {
    
    Connection con;
    
    /** Creates a new instance of AcessoMySql */
    public AcessoMySql() {
    }
    
    public Connection conectar(){
        try {
            
            Class.forName("com.mysql.jdbc.Driver");
            con = DriverManager.getConnection("jdbc:mysql://localhost/sisvenda?user=root&password=naofalopornada");
        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
            System.out.println("Não foi possível encontrar o Driver!");
        } catch (SQLException ex) {
            ex.printStackTrace();
            System.out.println("Não foi possível conectar ao banco!");
        }
        return con;
    }
    
    public void desconectar(){
        try {
            con.close();
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }
}

essa minha classe gera esse erro quando tento visualizar o conteudo da minha tabela no mysql

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1056)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3376)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3308)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:894)
        at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3808)
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1256)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2032)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:729)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:207)
        at br.com.sisvenda.acessobd.AcessoMySql.conectar(AcessoMySql.java:25)
        at br.com.sisvenda.clientes.ClienteControl.listarClientes(ClienteControl.java:71)
        at br.com.sisvenda.Clientes.listarClientes(Clientes.java:394)
        at br.com.sisvenda.Clientes.btPesquisaClienteActionPerformed(Clientes.java:418)
        at br.com.sisvenda.Clientes.access$000(Clientes.java:19)
        at br.com.sisvenda.Clientes$1.actionPerformed(Clientes.java:67)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6134)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5899)
        at java.awt.Container.processEvent(Container.java:2023)
        at java.awt.Component.dispatchEventImpl(Component.java:4501)
        at java.awt.Container.dispatchEventImpl(Container.java:2081)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3965)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
        at java.awt.Container.dispatchEventImpl(Container.java:2067)
        at java.awt.Window.dispatchEventImpl(Window.java:2458)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
Não foi possível conectar ao banco!
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
java.lang.NullPointerException
        at br.com.sisvenda.clientes.ClienteControl.listarClientes(ClienteControl.java:71)
        at br.com.sisvenda.Clientes.listarClientes(Clientes.java:394)
        at br.com.sisvenda.Clientes.btPesquisaClienteActionPerformed(Clientes.java:418)
        at br.com.sisvenda.Clientes.access$000(Clientes.java:19)
        at br.com.sisvenda.Clientes$1.actionPerformed(Clientes.java:67)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6134)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5899)
        at java.awt.Container.processEvent(Container.java:2023)
        at java.awt.Component.dispatchEventImpl(Component.java:4501)
        at java.awt.Container.dispatchEventImpl(Container.java:2081)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3965)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
        at java.awt.Container.dispatchEventImpl(Container.java:2067)
        at java.awt.Window.dispatchEventImpl(Window.java:2458)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
CONSTRUÍDO COM SUCESSO (tempo total: 9 segundos)

[b]Vlw pela ajuda

#2

Olá
Tenta fazer assim:

   con = DriverManager.getConnection("jdbc:mysql://localhost/sisvenda","root", "naofalopornada");

Acho que deve funcionar assim…

Espero ter ajudado
Flwsss

#3

mesmo erro acontece, esse projeto tinhafeito em otra maquina, e formatei mas salvei a pasta e colei aonde estava sabe, pode ser algo relacionado a isso ou n ? ja tentei de tudo e fica no mesmo erro :frowning:

#4

descobri que o password esta sendo digitado incorretamente, consigo descobrir meu pass? ou refaze-lo?

#5

Olá
Parece que seu login e senha não são válidos!!
Tenta acessar seu mysql pelo query browser, com esse login e senha. Se vc conseguir tenta ver
seu firewall… senão, veja qual foi que vc instalou no seu mysql…

Flwsss

#6

Tente recriar a instancia do mysql… no menu mysql lá no todos os programas…

#7