Curso de Java Netbeans Completo☕ [05.- Insertar registros de mi tabla(JTable) con mysql (parte 4)]
En este tutorial vamos a aprender a insertar registros en nuestra tabla empleados de mysql.
Java swing: https://es.wikipedia.org/wiki/Swing_(biblioteca_gr%C3%A1fica)
Documentación de java: https://docs.oracle.com/javase/8/docs/api/
Codigo: https://github.com/programadornovato/JavaGUI/commit/3f69b5a3f2d348311da10a36fb11aa85d09cebd6
package com.programadornovato.javagui; import javax.swing.JOptionPane; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import javax.swing.table.DefaultTableModel; /** * * @author eugenio */ public class Formulario extends javax.swing.JFrame { DefaultTableModel modelo=new DefaultTableModel(); Statement ejecutor=null; Connection con; String driver="com.mysql.cj.jdbc.Driver"; String user="eugenio"; String pass="123456"; String url="jdbc:mysql://localhost:3306/empleados?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC"; protected void cargaTabla(){ modelo.setRowCount(0); String datos[]=new String[4]; String query="select * from empleados;"; ResultSet rs; try { ejecutor=con.createStatement(); ejecutor.setQueryTimeout(20); rs=ejecutor.executeQuery(query); while(rs.next()==true){ datos[0]=rs.getString("id"); datos[1]=rs.getString("nombre"); datos[2]=rs.getString("puesto"); datos[3]=rs.getString("edad"); modelo.addRow(datos); } tablaEmpleados.setModel(modelo); } catch (Exception e) { } } protected void buscarTabla(String nombre,String puesto,String edad){ modelo.setRowCount(0); String datos[]=new String[4]; String where=" where 1=1 "; //Si el nombre no esta vacio if(nombre.isEmpty()==false){ where=where+" and nombre='"+nombre+"' "; } //Si el puesto no esta vacio if(puesto.isEmpty()==false){ where=where+" and puesto='"+puesto+"' "; } //Si la edad no esta vacio if(edad.isEmpty()==false){ where=where+" and edad='"+edad+"' "; } String query="select * from empleados "+where+" ;"; debugQuery.setText(query); ResultSet rs; try { ejecutor=con.createStatement(); ejecutor.setQueryTimeout(20); rs=ejecutor.executeQuery(query); while(rs.next()==true){ datos[0]=rs.getString("id"); datos[1]=rs.getString("nombre"); datos[2]=rs.getString("puesto"); datos[3]=rs.getString("edad"); modelo.addRow(datos); } tablaEmpleados.setModel(modelo); } catch (Exception e) { } } public void conectar(){ con=null; try { Class.forName(driver); con=(Connection) DriverManager.getConnection(url,user,pass); if(con!=null){ estadoCon.setText("Conexion exitosa"); } } catch (Exception e) { estadoCon.setText("Conexion no exitosa "+e); } } /** * Creates new form Formulario */ public Formulario() { initComponents(); modelo.addColumn("id"); modelo.addColumn("nombre"); modelo.addColumn("puesto"); modelo.addColumn("edad"); conectar(); cargaTabla(); } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { estadoCon = new javax.swing.JLabel(); jScrollPane1 = new javax.swing.JScrollPane(); tablaEmpleados = new javax.swing.JTable(); porNombre = new javax.swing.JTextField(); porPuesto = new javax.swing.JTextField(); porEdad = new javax.swing.JTextField(); jLabel1 = new javax.swing.JLabel(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); btnBuscar = new javax.swing.JButton(); jScrollPane2 = new javax.swing.JScrollPane(); debugQuery = new javax.swing.JTextArea(); txtNombre = new javax.swing.JTextField(); jLabel4 = new javax.swing.JLabel(); jLabel5 = new javax.swing.JLabel(); txtPuesto = new javax.swing.JTextField(); txtEdad = new javax.swing.JTextField(); jLabel6 = new javax.swing.JLabel(); btnAgregar = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); tablaEmpleados.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {null, null, null, null} }, new String [] { "id", "nombre", "puesto", "edad" } )); jScrollPane1.setViewportView(tablaEmpleados); jLabel1.setText("Por nombre"); jLabel2.setText("Por puesto"); jLabel3.setText("Por edad"); btnBuscar.setText("Buscar"); btnBuscar.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnBuscarActionPerformed(evt); } }); debugQuery.setColumns(20); debugQuery.setRows(5); jScrollPane2.setViewportView(debugQuery); jLabel4.setText("Nombre"); jLabel5.setText("Puesto"); jLabel6.setText("Edad"); btnAgregar.setText("Agregar"); btnAgregar.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnAgregarActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addGroup(layout.createSequentialGroup() .addComponent(jLabel4) .addGap(25, 25, 25) .addComponent(txtNombre, javax.swing.GroupLayout.PREFERRED_SIZE, 362, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(8, 8, 8)) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false) .addComponent(jScrollPane2, javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel1) .addComponent(porNombre, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(18, 18, 18) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel2) .addComponent(porPuesto, javax.swing.GroupLayout.PREFERRED_SIZE, 92, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel3) .addGroup(layout.createSequentialGroup() .addComponent(porEdad, javax.swing.GroupLayout.PREFERRED_SIZE, 96, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(btnBuscar)))) .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING))) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 45, Short.MAX_VALUE) .addComponent(estadoCon, javax.swing.GroupLayout.PREFERRED_SIZE, 76, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(btnAgregar) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel5) .addComponent(jLabel6)) .addGap(33, 33, 33) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(txtEdad, javax.swing.GroupLayout.PREFERRED_SIZE, 362, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(txtPuesto, javax.swing.GroupLayout.PREFERRED_SIZE, 362, javax.swing.GroupLayout.PREFERRED_SIZE)))) .addGap(0, 0, Short.MAX_VALUE))) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(estadoCon, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createSequentialGroup() .addGap(22, 22, 22) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtNombre, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel4)))) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtPuesto, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel5)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtEdad, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel6)) .addGap(18, 18, 18) .addComponent(btnAgregar) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 49, Short.MAX_VALUE) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1) .addComponent(jLabel2) .addComponent(jLabel3)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(porNombre, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(porPuesto, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(porEdad, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(btnBuscar)) .addGap(18, 18, 18) .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 175, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(18, 18, 18) .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) ); pack(); }// </editor-fold>//GEN-END:initComponents private void btnBuscarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnBuscarActionPerformed buscarTabla(porNombre.getText(),porPuesto.getText(),porEdad.getText()); }//GEN-LAST:event_btnBuscarActionPerformed private void btnAgregarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnAgregarActionPerformed agregar(); }//GEN-LAST:event_btnAgregarActionPerformed protected void agregar(){ String mensajeError=""; String query=""; PreparedStatement preparar=null; if(txtNombre.getText().isEmpty()==true){ mensajeError=mensajeError+" Nombre no puede esta vacio\n "; } if(txtPuesto.getText().isEmpty()==true){ mensajeError=mensajeError+" Puesto no puede esta vacio\n "; } if(txtEdad.getText().isEmpty()==true){ mensajeError=mensajeError+" Edad no puede esta vacio\n "; } if(mensajeError.isEmpty()==true){ query="insert into empleados " + "( nombre, puesto, edad) values" + "('"+txtNombre.getText()+"','"+txtPuesto.getText()+"','"+txtEdad.getText()+"') "; try { preparar=con.prepareStatement(query); preparar.executeUpdate(); cargaTabla(); } catch (Exception e) { } } else{ JOptionPane.showMessageDialog(null, mensajeError); } } /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(Formulario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(Formulario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(Formulario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(Formulario.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } //</editor-fold> /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new Formulario().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton btnAgregar; private javax.swing.JButton btnBuscar; private javax.swing.JTextArea debugQuery; private javax.swing.JLabel estadoCon; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel6; private javax.swing.JScrollPane jScrollPane1; private javax.swing.JScrollPane jScrollPane2; private javax.swing.JTextField porEdad; private javax.swing.JTextField porNombre; private javax.swing.JTextField porPuesto; private javax.swing.JTable tablaEmpleados; private javax.swing.JTextField txtEdad; private javax.swing.JTextField txtNombre; private javax.swing.JTextField txtPuesto; // End of variables declaration//GEN-END:variables }
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