Java tutorial
import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.DBCursor; 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; /* * 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 PanMostrar extends javax.swing.JFrame { DB db; DBCollection tabla; /** * Creates new form PanMostrar */ public PanMostrar() { //Conexion a mongoDb 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(); 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); } } /** * 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() { jLabel1 = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton(); jScrollPane2 = new javax.swing.JScrollPane(); Lista = new javax.swing.JList<>(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jLabel1.setFont(new java.awt.Font("Tahoma", 1, 24)); // NOI18N jLabel1.setForeground(new java.awt.Color(0, 102, 153)); jLabel1.setText("Mostrar"); jButton1.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N jButton1.setText("Inicio"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jScrollPane2.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().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGap(255, 255, 255).addComponent(jLabel1)) .addGroup(layout.createSequentialGroup().addGap(40, 40, 40) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 542, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jButton1, javax.swing.GroupLayout.Alignment.TRAILING)))) .addContainerGap(49, Short.MAX_VALUE))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup( javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup().addGap(29, 29, 29).addComponent(jLabel1).addGap(30, 30, 30) .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 285, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 45, Short.MAX_VALUE) .addComponent(jButton1).addGap(81, 81, 81))); 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 /** * @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(PanMostrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(PanMostrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(PanMostrar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(PanMostrar.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 PanMostrar().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JList<String> Lista; private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; private javax.swing.JScrollPane jScrollPane2; // End of variables declaration//GEN-END:variables }