Boatarde, estou estudando
um sistema de controle de vendas e estoques não estou conseguindo
conectar com banco de dados, teste tudo e não da certo uso Windows 7, netbeans 8.1,
postgresql 9.5 e tenho essas linha de codigo seria posiivel uma solução
public Statement stm; //preparar e realisar pesquisas banco dados
//preparar e realisar pesquisas banco dados
public ResultSet rs; //armazenar resultado pesquisa para statement
//armazenar resultado pesquisa para statement
private final String driver;
private final String caminho;
private final String usuario;
private final String senha;
public Connection conn; // conexão banco dados
public void conexao() throws ClassNotFoundException{ // metodo fechardesconexão banco dados
try { //tentativa inicial
Class.forName(“org.postgresql.Driver”); //Procura uma classe com esse nome, do projeto… (na biblioteca)
// System.setProperty(“jdbc.Drivers”, driver); // set a propriedade do driver de conexão
// DriverManager.registerDriver(org.postgresql.Driver);
conn = DriverManager.getConnection(caminho, usuario, senha); // realiza conexão com banco dados
JOptionPane.showMessageDialog(null,“Conectado com sucesso!”);
} catch (SQLException ex) {
JOptionPane.showMessageDialog(null,“Erro de conexão! \n Erro” + ex.getMessage());
}
}
public void desconecta(){
try {
conn.close(); //fecha conexão
} catch (Exception ex) {
JOptionPane.showMessageDialog(null,“Erro ao fechar a conexão! \n Erro” + ex.getMessage());
}
}
}
Exception in thread “AWT-EventQueue-0” java.lang.UnsupportedOperationException: Not supported yet.
at estoques.Formularios.FrmCor$jOptionPane.showMessageDialog(FrmCor.java:280)
at estoques.Formularios.FrmCor$jOptionPane.access$300(FrmCor.java:277)
at estoques.Formularios.FrmCor.jButtonSalvaActionPerformed(FrmCor.java:204)
at estoques.Formularios.FrmCor.access$000(FrmCor.java:18)
at estoques.Formularios.FrmCor$1.actionPerformed(FrmCor.java:74)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)