Criar Um Formulario com a classe SWING, Criar um SERVLET, Criar uma Base de Dados.

src_com_alexss_conexao_ConectJDBC.java

package com.alexss.conexao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class ConectJDBC {

    private Connection conn;
    private String user = "root";
    private String senha = "";
    private String url = "jdbc:mysql://localhost:3306/breadcrumb";
    private String drive = "com.mysql.jdbc.Driver";

    public void OpenConnect(){
        try{
            Class.forName(drive);
            conn = DriverManager.getConnection(url,user,senha);

        }catch(ClassNotFoundException ex){
            ex.printStackTrace();
            System.out.println("cannot found Driver Class" + ex);

        }catch (SQLException e){
            e.printStackTrace();
            System.out.println("cannot found Service" + e);
        }
    }

    public void CloseConnect(){
        try{
            conn.close();

        }catch (SQLException e){
            e.printStackTrace();
            System.out.println("Not Close Connection..."+ e);
        }


    }

}

src_com_alexss_daoContato_Negocio.java

package com.alexss.daoContato;

import com.alexss.conexao.ConectJDBC;
import com.alexss.modelo.Contato;

import java.sql.*;
import java.text.DateFormat;
import java.text.ParseException;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class Negocio extends ConectJDBC{

    private Connection conn = null;
    private Statement stmt = null;
    private PreparedStatement pstmt = null;
    private ResultSet rs = null;
    private ConectJDBC conect;

    private Calendar formtData;

    public SimpleDateFormat novoFormato = null;
    public Date data = null;

    public boolean Save(Contato c){

        conect = new ConectJDBC();

        boolean conectado = false;

        if(conect != null ){
            conect.OpenConnect();
        }

        try {
             data = formataData(c.getData());
            System.out.println(data);
        } catch (Exception e) {
            e.printStackTrace();
        }

        try{

            String query = "INSERT INTO contato(matricula, name, data)"+
            "VALUE  (" + c.getMatricula() + ",'" + c.getNome() + "','" + data + "')";
            pstmt.execute(query);
            conectado = true;
        }
        catch (SQLException exp){
            exp.printStackTrace();
            System.out.println("Not Execute your Query..." + exp);
        }
        return conectado;
    }

    public Date formataData(String data) throws ParseException {
        if (data == null || data.equals(""))
            return null;

        Date dt = new Date();
        novoFormato = new SimpleDateFormat("dd/MM/yyyy");
        dt = novoFormato.parse(data);

        System.out.println(novoFormato.format(dt));

        return dt;
    }


}

src_com_alexss_form_FormMain.java

package com.alexss.form;

import com.alexss.daoContato.Negocio;
import com.alexss.modelo.Contato;

import javax.swing.*;
import javax.swing.text.MaskFormatter;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.ParseException;
import java.util.Scanner;

public class FormMain extends JFrame implements ActionListener{

    private JTextField txtNome, txtMatricula;

    private MaskFormatter maskData_Nascimento = null;
    private JFormattedTextField jFormattedTextData = null;

    private JLabel lblNome, lblMatricula, lblData;
    private JButton btnCadastrar, btnConsultar;


    public FormMain(){
        super("Contact");
        setSize(520,520);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        getContentPane().setLayout(null);

        btnCadastrar = new JButton("Cadastrar");
        btnConsultar = new JButton("Consultar");

        lblNome = new JLabel("Nome:");
        lblMatricula = new JLabel("Matricula:");
        lblData = new JLabel("Data Inicio:");

        txtNome = new JTextField();
        txtMatricula = new JTextField();

        try{
            maskData_Nascimento = new MaskFormatter("##/##/####");
        }catch (ParseException e){
            System.out.println("Erro na Formatação" + e);
            e.printStackTrace();
        }

        getContentPane().add(btnCadastrar);
        getContentPane().add(btnConsultar);

        getContentPane().add(lblData);
        getContentPane().add(lblMatricula);
        getContentPane().add(lblNome);

        getContentPane().add(txtNome);
        getContentPane().add(txtMatricula);

        jFormattedTextData = new JFormattedTextField(maskData_Nascimento);
        getContentPane().add(jFormattedTextData);


        //Montando a tela
        lblNome.setBounds(5,60,100,20);
        txtNome.setBounds(70,60,160,20);

        lblMatricula.setBounds(5,100,120,20);
        txtMatricula.setBounds(70,100,160,20);

        lblData.setBounds(5,140,100,20);
        jFormattedTextData.setBounds(70,140,160,20);

        btnConsultar.setBounds(200,200,100,30);
        btnCadastrar.setBounds(70,200,100,30);

        lblNome.setForeground(Color.BLACK);
        lblData.setForeground(Color.BLACK);
        lblMatricula.setForeground(Color.BLACK);

        txtNome.addActionListener(this);
        txtMatricula.addActionListener(this);
        btnCadastrar.addActionListener(this);
        btnConsultar.addActionListener(this);
    }

    @Override
    public void actionPerformed(ActionEvent action) {

        if(action.getSource() == btnCadastrar){
            Contato contato = new Contato();
            Negocio ng = new Negocio();

            contato.setNome(txtNome.getText());
            contato.setMatricula(Integer.parseInt(txtMatricula.getText()));
            contato.setData(jFormattedTextData.getText());

            boolean acesso = ng.Save(contato);
        }
    }
}

src_com_alexss_Main.java

package com.alexss;

import com.alexss.form.FormMain;

import javax.swing.*;
import java.util.Scanner;

public class Main extends FormMain{

    Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {

        FormMain form = new FormMain();
        form.setVisible(true);
    }

}

src_com_alexss_modelo_Contato.java

package com.alexss.modelo;

public class Contato {

    private int id;
    private int matricula;
    private String nome;
    private String data;

    public Contato(){

    }

    public Contato(int _matric, String _nome, String _data){

        this.matricula = _matric;
        this.nome = _nome;
        this.data = _data;
    }


    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getMatricula() {
        return matricula;
    }

    public void setMatricula(int matricula) {
        this.matricula = matricula;
    }

    public String getNome() {
        return nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }

    public String getData() {
        return data;
    }

    public void setData(String data) {
        this.data = data;
    }
}