Curso de Java Netbeans Completo☕ [04.- Buscar datos de mi tabla(JTable) con mysql (parte 3)]
En este tutorial vamos buscar por nombre, puesto y edad en nuestra tabla (JTable).
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/14f2cb1d05320c80644a28bdbc60c73dfd2a1588
package com.programadornovato.javagui;
import javax.swing.JOptionPane;
import java.sql.Connection;
import java.sql.DriverManager;
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.addColumn("id");
modelo.addColumn("nombre");
modelo.addColumn("puesto");
modelo.addColumn("edad");
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();
conectar();
}
/**
* 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();
llenarTabla = new javax.swing.JButton();
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();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
llenarTabla.setText("Llenar tabla");
llenarTabla.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
llenarTablaActionPerformed(evt);
}
});
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);
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()
.addComponent(llenarTabla)
.addGap(18, 18, 18)
.addComponent(estadoCon, javax.swing.GroupLayout.PREFERRED_SIZE, 345, javax.swing.GroupLayout.PREFERRED_SIZE))
.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)))
.addContainerGap(130, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(estadoCon, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(llenarTabla))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 93, 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)
.addGap(89, 89, 89))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void llenarTablaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_llenarTablaActionPerformed
//conectar();
cargaTabla();
}//GEN-LAST:event_llenarTablaActionPerformed
private void btnBuscarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnBuscarActionPerformed
buscarTabla(porNombre.getText(),porPuesto.getText(),porEdad.getText());
}//GEN-LAST:event_btnBuscarActionPerformed
/**
* @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 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.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JButton llenarTabla;
private javax.swing.JTextField porEdad;
private javax.swing.JTextField porNombre;
private javax.swing.JTextField porPuesto;
private javax.swing.JTable tablaEmpleados;
// End of variables declaration//GEN-END:variables
}
[Curso] Java Netbeans GUI Completo☕: https://www.youtube.com/watch?v=S0XKc_MJCS0&list=PLCTD_CpMeEKThfXo8D-RXOGu5FarO7_qv
? Instalar Netbeans 11 en Windows 10: https://www.youtube.com/watch?v=EouitrKS6Cw
? Instalar Netbeans 11 en Ubuntu con Snap [Más fácil que en windows?]: https://www.youtube.com/watch?v=LllPPV9SMzQ
? Descargar e Instalar Netbeans 11 en ubuntu 18 04: https://www.youtube.com/watch?v=tWiX3Z5t5kQ
? Netbeans Sublime Theme ?: https://www.youtube.com/watch?v=oAF2Q7mTZZM
? Editar CSS directamenete en Chrome con Netbeans: https://www.youtube.com/watch?v=HlQs0a7R2cY
Pagina de netbeans: https://netbeans.org/
Instalar MySQL? en Ubuntu 18.04: https://www.youtube.com/watch?v=hx-nGKFVixA
Instalar PhpMyAdmin en Windows 10 ⛵: https://youtu.be/36ritPuyd00
Gracias por apoyar este canal: https://www.patreon.com/programadornovato?fan_landing=true
? Facebook: https://facebook.com/ProgramadorNovatoOficial
? Twitter: https://twitter.com/programadornova
? Linkedin: https://www.linkedin.com/in/programadornovato/
? Instagram: https://www.instagram.com/programadornovato/
