Java Netbeans GUI和SQL问题

//我对Netbeans有问题。当我单击register时，我试图将我在注册表中输入的值转到sql表，但什么都没有发生。有人能帮忙吗

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package networking;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;

/**
 *
 * @author user
 */
public class Registration extends javax.swing.JFrame {

    /**
     * Creates new form Registration
     */
    public Registration() {
        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">
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();
        FullNameField = new javax.swing.JTextField();
        EmailField = new javax.swing.JTextField();
        Username = new javax.swing.JTextField();
        jScrollPane1 = new javax.swing.JScrollPane();
        AdressField = new javax.swing.JTextArea();
        PasswordField = new javax.swing.JPasswordField();
        Registeration = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("Registration Form ");

        jLabel2.setText("Full Name");

        jLabel3.setText("Email");

        jLabel4.setText("Username");

        jLabel5.setText("Password");

        jLabel6.setText("Adresse");

        FullNameField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                FullNameFieldActionPerformed(evt);
            }
        });

        AdressField.setColumns(20);
        AdressField.setRows(5);
        jScrollPane1.setViewportView(AdressField);

        Registeration.setText("Register");
        Registeration.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                RegisterationActionPerformed(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()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(105, 105, 105)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(Registeration)
                            .addGroup(layout.createSequentialGroup()
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                                        .addComponent(jLabel3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                        .addComponent(jLabel4, javax.swing.GroupLayout.Alignment.LEADING)
                                        .addComponent(jLabel5, javax.swing.GroupLayout.Alignment.LEADING)
                                        .addComponent(jLabel6, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                                .addGap(18, 18, 18)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(PasswordField)
                                    .addComponent(Username)
                                    .addComponent(EmailField)
                                    .addComponent(FullNameField)
                                    .addComponent(jScrollPane1)))))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(21, 21, 21)
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 131, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGap(105, 282, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(26, 26, 26)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(28, 28, 28)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(FullNameField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(EmailField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel4)
                    .addComponent(Username, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel5)
                    .addComponent(PasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(20, 20, 20)
                        .addComponent(jLabel6)))
                .addGap(18, 18, 18)
                .addComponent(Registeration)
                .addContainerGap(27, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void RegisterationActionPerformed(java.awt.event.ActionEvent evt) {
     try{
         Connection con = DriverManager.getConnection("jdbc:mysql://localhost/networks","root","mamaendbaba");
         Statement stat = (Statement) con.createStatement();
         String Name = FullNameField.getText();
         String UserName= Username.getText();
         String Adr = AdressField.getText();
         String Pass = PasswordField.getText();
         String Emai = EmailField.getText(); 
         String excmd = "INSERT INTO networks registerd(Name, UserName, Address, Password, Email)" +
    " VALUES (?, ?, ?, ?, ?)";
         @SuppressWarnings("UnusedAssignment")
PreparedStatement statement =con.prepareStatement(excmd);
statement = (PreparedStatement) con.createStatement();

// get field values ... 
statement.setString(1, Name);
statement.setString(2, UserName);
statement.setString(3, Adr);
statement.setString(4, Pass);
statement.setString(5, Emai);
statement.executeUpdate();
     }
     catch(Exception e)
     {
     }    

    }

    private void FullNameFieldActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    /**
     * @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(Registration.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Registration.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Registration.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Registration.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 Registration().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JTextArea AdressField;
    private javax.swing.JTextField EmailField;
    private javax.swing.JTextField FullNameField;
    private javax.swing.JPasswordField PasswordField;
    private javax.swing.JButton Registeration;
    private javax.swing.JTextField Username;
    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;
    // End of variables declaration
}

/*
*要更改此模板，请选择工具|模板
*然后在编辑器中打开模板。
*/
包联网；
导入java.sql.Connection；
导入java.sql.DriverManager；
导入java.sql.PreparedStatement；
导入java.sql.Statement；
/**
*
*@author用户
*/
公共类注册扩展了javax.swing.JFrame{
/**
*创建新的表单注册
*/
公开注册（）{
初始化组件（）；
}
/**
*从构造函数中调用此方法来初始化表单。
*警告：不要修改此代码。此方法的内容始终为
*由表单编辑器重新生成。
*/
@抑制警告（“未选中”）
// 
私有组件（）{
jLabel1=newjavax.swing.JLabel（）；
jLabel2=newjavax.swing.JLabel（）；
jLabel3=newjavax.swing.JLabel（）；
jLabel4=newjavax.swing.JLabel（）；
jLabel5=newjavax.swing.JLabel（）；
jLabel6=newjavax.swing.JLabel（）；
FullNameField=newjavax.swing.JTextField（）；
EmailField=newjavax.swing.JTextField（）；
Username=newjavax.swing.JTextField（）；
jScrollPane1=newjavax.swing.JScrollPane（）；
addressfield=newjavax.swing.JTextArea（）；
PasswordField=newjavax.swing.JPasswordField（）；
registation=newjavax.swing.JButton（）；
setDefaultCloseOperation（javax.swing.WindowConstants.EXIT_ON_CLOSE）；
jLabel1.setText（“登记表”）；
jLabel2.setText（“全名”）；
jLabel3.setText（“电子邮件”）；
jLabel4.setText（“用户名”）；
jLabel5.setText（“密码”）；
jLabel6.setText（“地址”）；
FullNameField.addActionListener（新java.awt.event.ActionListener（）{
public void actionPerformed（java.awt.event.ActionEvent evt）{
FullNameFieldActionPerformed（evt）；
}
});
地址字段。设置列（20）；
地址字段。设置行（5）；
jScrollPane1.setViewportView（地址字段）；
registration.setText（“寄存器”）；
Registration.addActionListener（新的java.awt.event.ActionListener（）{
public void actionPerformed（java.awt.event.ActionEvent evt）{
已执行的注册操作（evt）；
}
});
javax.swing.GroupLayout=newjavax.swing.GroupLayout（getContentPane（））；
getContentPane（）.setLayout（布局）；
layout.setHorizontalGroup(
createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addGap（105、105、105）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.training）
.addComponent（注册）
.addGroup（layout.createSequentialGroup（）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addComponent（jLabel2，javax.swing.GroupLayout.PREFERRED\u SIZE，64，javax.swing.GroupLayout.PREFERRED\u SIZE）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.training，false）
.addComponent（jLabel3、javax.swing.GroupLayout.Alignment.LEADING、javax.swing.GroupLayout.DEFAULT\u SIZE、javax.swing.GroupLayout.DEFAULT\u SIZE、Short.MAX\u值）
.addComponent（jLabel4、javax.swing.GroupLayout.Alignment.LEADING）
.addComponent（jLabel5、javax.swing.GroupLayout.Alignment.LEADING）
.addComponent（jLabel6，javax.swing.GroupLayout.Alignment.LEADING，javax.swing.GroupLayout.DEFAULT\u SIZE，javax.swing.GroupLayout.DEFAULT\u SIZE，Short.MAX\u VALUE）））
.addGap（18,18,18）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING，false）
.addComponent（密码字段）
.addComponent（用户名）
.addComponent（电子邮件字段）
.addComponent（全名字段）
.addComponent（jScrollPane1()())）
.addGroup（layout.createSequentialGroup（）
.addGap（21,21,21）
.addComponent（jLabel1，javax.swing.GroupLayout.PREFERRED_SIZE，131，javax.swing.GroupLayout.PREFERRED_SIZE）））
.addGap（105282，短。最大值））
);
layout.setVerticalGroup(
createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addGap（26,26,26）
.addComponent（jLabel1，javax.swing.GroupLayout.PREFERRED\u SIZE，29，javax.swing.GroupLayout.PREFERRED\u SIZE）
.addGap（28,28,28）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.BASELINE）
.addComponent（jLabel2）
.addComponent（FullNameField、javax.swing.GroupLayout.PREFERRED\u SIZE、javax.swing.GroupLayout.DEFAULT\u SIZE、javax.swing.GroupLayout.PREFERRED\u SIZE））
.addGap（18,18,18）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.BASELINE）
.addComponent（jLabel3）
.addComponent（EmailField，javax.swing.GroupLayout.PREFERRED_SIZE，javax.swing.GroupLayout.DEFAU
String excmd = "INSERT INTO networks registerd VALUES ('" + Name + "','"+ UserName +"','"+ Adr +"','"+ Pass +"','"+ Emai +"')";

e.printStackTrace();

String excmd =
    "INSERT INTO registerd(Name, UserName, Address, Password, Email)" +
    " VALUES (?, ?, ?, ?, ?)";
PreparedStatement statement = con.createPreparedStatement(excmd);
// get field values ... 
statement.setString(1, Name);
statement.setString(2, UserName);
statement.setString(3, Adr);
statement.setString(4, Pass);
statement.setString(5, Emai);
statement.executeUpdate();