Java tutorial
/* * 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. */ package lockers; import org.json.simple.JSONObject; /** * * @author luishoracio */ public class Usuarios extends javax.swing.JFrame { boolean boolNewUser = false; public Usuarios() { initComponents(); } public Usuarios(String userId) { initComponents(); this.txtMatricula.setText(userId); getUserData(userId); } private void getUserData(String userId) { JSONObject obj = Utils.getJSONObjectFromURL("http://127.0.0.1:8000/Users/" + userId + "/?format=json"); System.out.println(obj.size()); if (obj.containsKey("Error")) { boolNewUser = true; return; } this.txtName.setText(obj.get("user_name").toString()); this.txtFLN.setText(obj.get("user_ap").toString()); this.txtMLN.setText(obj.get("user_am").toString()); } private void saveUser() { if (!validateUserData()) { Utils.msgbox("Los datos son incorrectos"); } if (boolNewUser) { } else { } } private boolean validateUserData() { boolean isValid = true; if ("".equals(this.txtName.getText())) isValid = false; if ("".equals(this.txtFLN.getText())) isValid = false; if ("".equals(this.txtMLN.getText())) isValid = false; return isValid; } /** * 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(); txtMatricula = new javax.swing.JTextField(); txtName = new javax.swing.JTextField(); txtFLN = new javax.swing.JTextField(); txtMLN = new javax.swing.JTextField(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); btnSaveUser = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("Registro de usuario"); jLabel1.setText("Matrcula"); txtMatricula.setEditable(false); txtMatricula.setText("User Id"); jLabel2.setText("Nombre"); jLabel3.setText("Apellido Paterno"); jLabel4.setText("Apellido Materno"); btnSaveUser.setMnemonic('G'); btnSaveUser.setText("Guardar Usuario"); btnSaveUser.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnSaveUserActionPerformed(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().addGap(40, 40, 40) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(jLabel1).addComponent(jLabel2).addComponent(jLabel3) .addComponent(jLabel4)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(txtFLN).addComponent(txtMLN).addComponent(txtName).addComponent( txtMatricula, javax.swing.GroupLayout.DEFAULT_SIZE, 150, Short.MAX_VALUE)) .addContainerGap(91, Short.MAX_VALUE)) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(btnSaveUser).addContainerGap())); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGap(24, 24, 24) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1).addComponent(txtMatricula, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel2)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtFLN, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel3)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(txtMLN, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel4)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 111, Short.MAX_VALUE) .addComponent(btnSaveUser).addContainerGap())); pack(); }// </editor-fold>//GEN-END:initComponents private void btnSaveUserActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnSaveUserActionPerformed saveUser(); }//GEN-LAST:event_btnSaveUserActionPerformed /** * @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(Usuarios.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(Usuarios.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(Usuarios.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(Usuarios.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 Usuarios().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton btnSaveUser; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JTextField txtFLN; private javax.swing.JTextField txtMLN; private javax.swing.JTextField txtMatricula; private javax.swing.JTextField txtName; // End of variables declaration//GEN-END:variables }