Java tutorial
import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.DBCursor; import com.mongodb.DBObject; import com.mongodb.Mongo; import java.net.UnknownHostException; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.DefaultListModel; import org.bson.BSONObject; import sun.invoke.empty.Empty; /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ /** * * @author USER1 */ public class PanBorrar extends javax.swing.JFrame { DB db; DBCollection tabla; /** * Creates new form PanBorrar */ public PanBorrar() { try { Mongo mongo = new Mongo("localhost", 27017); db = mongo.getDB("Escuela"); tabla = db.getCollection("Alumnos"); } catch (UnknownHostException ex) { Logger.getLogger(Inicio.class.getName()).log(Level.SEVERE, null, ex); } initComponents(); } /** * 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() { jScrollPane2 = new javax.swing.JScrollPane(); jLabel1 = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton(); jLabel2 = new javax.swing.JLabel(); nombreT = new javax.swing.JTextField(); apPaternoT = new javax.swing.JTextField(); apMaternoT = new javax.swing.JTextField(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); jLabel5 = new javax.swing.JLabel(); Eliminar = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jScrollPane3 = new javax.swing.JScrollPane(); Lista = new javax.swing.JList<>(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N jLabel1.setText("Ingresa el nombre del estudiante que deseas borrar"); jButton1.setText("Inicio"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jLabel2.setFont(new java.awt.Font("Tahoma", 1, 24)); // NOI18N jLabel2.setForeground(new java.awt.Color(0, 102, 153)); jLabel2.setText("Eliminar"); nombreT.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { nombreTActionPerformed(evt); } }); jLabel3.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N jLabel3.setText("Apellido Paterno"); jLabel4.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N jLabel4.setText("Nombre"); jLabel5.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N jLabel5.setText("Apellido Materno"); Eliminar.setText("Eliminar"); Eliminar.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { EliminarActionPerformed(evt); } }); jButton2.setText("Mostrar"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jScrollPane3.setViewportView(Lista); 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.TRAILING) .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jLabel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel4).addComponent(jLabel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addGap(27, 27, 27) .addGroup(layout .createParallelGroup( javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(apMaternoT, javax.swing.GroupLayout.DEFAULT_SIZE, 97, Short.MAX_VALUE) .addComponent(apPaternoT).addComponent(nombreT)) .addGap(61, 61, 61).addComponent(Eliminar)) .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 351, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGap(36, 36, 36) .addComponent(jButton1)) .addGroup(layout.createSequentialGroup() .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jButton2))))) .addContainerGap(35, Short.MAX_VALUE)) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel2).addGap(183, 183, 183))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap().addComponent(jLabel2).addGap(18, 18, 18) .addComponent(jLabel1) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGap(34, 34, 34).addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(nombreT, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel4)).addGap(18, 18, 18) .addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(apPaternoT, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel3).addComponent(Eliminar)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(apMaternoT, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel5)) .addGap(18, 18, 18) .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 159, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(29, Short.MAX_VALUE)) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jButton2).addGap(73, 73, 73).addComponent(jButton1) .addContainerGap())))); pack(); setLocationRelativeTo(null); }// </editor-fold>//GEN-END:initComponents private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed MenuPrincipal newFrame = new MenuPrincipal(); newFrame.setVisible(true); this.dispose(); // TODO add your handling code here: }//GEN-LAST:event_jButton1ActionPerformed private void nombreTActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_nombreTActionPerformed // TODO add your handling code here: }//GEN-LAST:event_nombreTActionPerformed private void EliminarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_EliminarActionPerformed // TODO add your handling code here: String name = nombreT.getText(); String apPat = apPaternoT.getText(); String apMat = apMaternoT.getText(); if (!name.equals("") || !apPat.equals("") || !apMat.equals("")) { tabla.remove(new BasicDBObject().append("Nombre", name).append("ApPaterno", apPat).append("ApMaterno", apMat)); javax.swing.JOptionPane.showMessageDialog(this, "Se ha Eliminado exitosamente el nuevo alumno"); PanBorrar newFrame = new PanBorrar(); newFrame.setVisible(true); this.dispose(); } else { javax.swing.JOptionPane.showMessageDialog(this, "No se han comletado los campos"); } }//GEN-LAST:event_EliminarActionPerformed private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed // TODO add your handling code here: int num = 1; DBCursor cursor = tabla.find(); DefaultListModel model = new DefaultListModel(); while (cursor.hasNext()) { BSONObject obj = cursor.next(); // Obtener variables del JSON try { String name = (String) obj.get("Nombre"); String ap = (String) obj.get("ApPaterno"); String am = (String) obj.get("ApMaterno"); String fechaNac = (String) obj.get("FechaNac"); int edad = (int) obj.get("Edad"); String sex = (String) obj.get("Sexo"); String mat = (String) obj.get("Matricula"); int semestre = (int) obj.get("Semestre"); String carrera = (String) obj.get("Carrera"); // Imprimir todo /*Mostrar.setText(Mostrar.getText() + "\n" + name + " " + ap + " " + am + " " + fechaNac + " " + edad + " " + sex + " " + mat + " " + semestre + " " + carrera);*/ model.addElement(num + " " + name + " " + ap + " " + am + " " + fechaNac + " " + edad + " " + sex + " " + mat + " " + semestre + " " + carrera); num++; } catch (Exception ex) { System.out.println("objeto no completo"); } Lista.setModel(model); } }//GEN-LAST:event_jButton2ActionPerformed /** * @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(PanBorrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(PanBorrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(PanBorrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(PanBorrar.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 PanBorrar().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton Eliminar; private javax.swing.JList<String> Lista; private javax.swing.JTextField apMaternoT; private javax.swing.JTextField apPaternoT; private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; 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.JScrollPane jScrollPane2; private javax.swing.JScrollPane jScrollPane3; private javax.swing.JTextField nombreT; // End of variables declaration//GEN-END:variables }