Nội dung ôn tập
- Thiết kế giao diện (Java Swing)
- Kết nối CSDL
- Thread
======================================================
Nôi dung kiến thức hôm nay:
- Kết nối CSDL & Java Swing
======================================================
B1. Tao project
B2. Tai thu vien mysql jdbc driver -> add project
B3. Xay dung giao dien cua ung dung.
B4. Tao CSDL

create table students (
	id int primary key auto_increment,
	fullname varchar(50),
	gender varchar(16),
	age int,
	email varchar(150),
	phone varchar(20)
)

Fake data -> test chuong trinh cho nhanh

B5. Phat trien cac chuc nang cua chuong trinh
- Hien thi du lieu len table
	- Lay dc du lieu tu database (studentList)
	- Fill du lieu len table
- Them du lieu vao database

#StudentModify.java

/*
 * 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 lesson01;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;


/**
 *
 * @author Diep.Tran
 */
public class StudentModify {
    static final String HOST = "jdbc:mysql://localhost:3306/C2005L";
    static final String USERNAME = "root";
    static final String PASSWORD = "";
    
    public static List<Student> getStudentList(String s) {
        List<Student> dataList = new ArrayList<>();
        
        Connection con = null;
        try {
            //Lay thong tin du lieu tu database
            //B1. Ket noi toi data
            con = DriverManager.getConnection(HOST, USERNAME, PASSWORD);
            
            //B2. Thuc hien lay du lieu
            String sql = "select * from students";
            if(s != null && !s.isEmpty()) {
                sql += " where fullname like '"+s+"'";
            }
            PreparedStatement statement = con.prepareStatement(sql);
            
            ResultSet resultSet = statement.executeQuery();
            
            //Fetch data
            while(resultSet.next()) {
                Student std = new Student(
                        resultSet.getInt("id"), 
                        resultSet.getString("fullname"), 
                        resultSet.getString("gender"), 
                        resultSet.getString("email"), 
                        resultSet.getString("phone"), 
                        resultSet.getInt("age"));
                dataList.add(std);
            }
        } catch (SQLException ex) {
            Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            //B3. Dong ket noi toi database
            if(con != null) {
                try {
                    con.close();
                } catch (SQLException ex) {
                    Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
        
        return dataList;
    }
    
    public static void update(Student std) {
        Connection con = null;
        try {
            //Lay thong tin du lieu tu database
            //B1. Ket noi toi data
            con = DriverManager.getConnection(HOST, USERNAME, PASSWORD);
            
            //B2. Thuc hien lay du lieu
            String sql = "update students set fullname = ?, email = ?, gender = ?, age = ?, phone = ? where id = ?";
            PreparedStatement statement = con.prepareStatement(sql);
            
            statement.setString(1, std.getFullname());
            statement.setString(2, std.getEmail());
            statement.setString(3, std.getGender());
            statement.setInt(4, std.getAge());
            statement.setString(5, std.getPhone());
            statement.setInt(6, std.getId());
            
            statement.execute();
        } catch (SQLException ex) {
            Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            //B3. Dong ket noi toi database
            if(con != null) {
                try {
                    con.close();
                } catch (SQLException ex) {
                    Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
    
    public static void delete(int id) {
        Connection con = null;
        try {
            //Lay thong tin du lieu tu database
            //B1. Ket noi toi data
            con = DriverManager.getConnection(HOST, USERNAME, PASSWORD);
            
            //B2. Thuc hien lay du lieu
            String sql = "delete from students where id = ?";
            PreparedStatement statement = con.prepareStatement(sql);
            
            statement.setInt(1, id);
            
            statement.execute();
        } catch (SQLException ex) {
            Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            //B3. Dong ket noi toi database
            if(con != null) {
                try {
                    con.close();
                } catch (SQLException ex) {
                    Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
    
    public static void insert(Student std) {
        Connection con = null;
        try {
            //Lay thong tin du lieu tu database
            //B1. Ket noi toi data
            con = DriverManager.getConnection(HOST, USERNAME, PASSWORD);
            
            //B2. Thuc hien lay du lieu
            String sql = "insert into students (fullname, email, gender, age, phone) values (?, ?, ?, ?, ?)";
            PreparedStatement statement = con.prepareStatement(sql);
            
            statement.setString(1, std.getFullname());
            statement.setString(2, std.getEmail());
            statement.setString(3, std.getGender());
            statement.setInt(4, std.getAge());
            statement.setString(5, std.getPhone());
            
            statement.execute();
        } catch (SQLException ex) {
            Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            //B3. Dong ket noi toi database
            if(con != null) {
                try {
                    con.close();
                } catch (SQLException ex) {
                    Logger.getLogger(StudentModify.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
}

#StudentFrame.java

/*
 * 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 lesson01;

import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.List;
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author Diep.Tran
 */
public class StudentFrame extends javax.swing.JFrame {
    DefaultTableModel tableModel;
    List<Student> studentList;
    int currentIndex = -1;
    
    /**
     * Creates new form StudentFrame
     */
    public StudentFrame() {
        initComponents();
        
        tableModel = (DefaultTableModel) studentTable.getModel();
        studentList = StudentModify.getStudentList(null);
        showStudents();
        
        //Bat su kien khi click vao item trong table
        studentTable.addMouseListener(new MouseListener() {
            @Override
            public void mouseClicked(MouseEvent e) {
            }

            @Override
            public void mousePressed(MouseEvent e) {
                int position = studentTable.getSelectedRow();
                
                currentIndex = position;
                
                fullnameTxt.setText(studentList.get(position).getFullname());
                emailTxt.setText(studentList.get(position).getEmail());
                ageTxt.setText(studentList.get(position).getAge() + "");
                phoneTxt.setText(studentList.get(position).getPhone());
                genderCb.setSelectedItem(studentList.get(position).getFullname());
            }

            @Override
            public void mouseReleased(MouseEvent e) {
            }

            @Override
            public void mouseEntered(MouseEvent e) {
            }

            @Override
            public void mouseExited(MouseEvent e) {
            }
        });
    }

    private void showStudents() {
        tableModel.setRowCount(0);
        
        for (Student student : studentList) {
            tableModel.addRow(new Object[] {
                tableModel.getRowCount() + 1,
                student.getFullname(),
                student.getGender(),
                student.getAge(),
                student.getEmail(),
                student.getPhone(),
            });
        }
    }
    
    /**
     * 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() {

        jButton3 = new javax.swing.JButton();
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        fullnameTxt = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        genderCb = new javax.swing.JComboBox<>();
        jLabel3 = new javax.swing.JLabel();
        ageTxt = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        emailTxt = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        phoneTxt = new javax.swing.JTextField();
        saveBtn = new javax.swing.JButton();
        resetBtn = new javax.swing.JButton();
        deleteBtn = new javax.swing.JButton();
        findBtn = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        studentTable = new javax.swing.JTable();

        jButton3.setText("Reset");

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Quan Ly Sinh Vien");

        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("NHAP THONG TIN SINH VIEN"));
        jPanel1.setToolTipText("");

        jLabel1.setText("Ho Ten: ");

        jLabel2.setText("Gioi Tinh:");

        genderCb.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "-- Chon --", "Nam", "Nu", "Khac" }));

        jLabel3.setText("Tuoi:");

        jLabel4.setText("Email:");

        jLabel5.setText("SDT:");

        saveBtn.setText("Save");
        saveBtn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                saveBtnActionPerformed(evt);
            }
        });

        resetBtn.setText("Reset");
        resetBtn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                resetBtnActionPerformed(evt);
            }
        });

        deleteBtn.setText("Delete");
        deleteBtn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                deleteBtnActionPerformed(evt);
            }
        });

        findBtn.setText("Find");
        findBtn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                findBtnActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(15, 15, 15)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel1)
                    .addComponent(jLabel2)
                    .addComponent(jLabel3)
                    .addComponent(jLabel4)
                    .addComponent(jLabel5))
                .addGap(53, 53, 53)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(saveBtn)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(resetBtn)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(deleteBtn)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(findBtn))
                    .addComponent(phoneTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 433, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(emailTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 433, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(ageTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 433, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(genderCb, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(fullnameTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 433, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(23, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(12, 12, 12)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(fullnameTxt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(genderCb, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(ageTxt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(emailTxt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel5)
                    .addComponent(phoneTxt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(saveBtn)
                    .addComponent(resetBtn)
                    .addComponent(deleteBtn)
                    .addComponent(findBtn))
                .addContainerGap(23, Short.MAX_VALUE))
        );

        studentTable.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {

            },
            new String [] {
                "STT", "Ho & Ten", "Gioi Tinh", "Tuoi", "Email", "SDT"
            }
        ) {
            boolean[] canEdit = new boolean [] {
                false, false, false, false, false, false
            };

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        jScrollPane1.setViewportView(studentTable);
        if (studentTable.getColumnModel().getColumnCount() > 0) {
            studentTable.getColumnModel().getColumn(0).setResizable(false);
            studentTable.getColumnModel().getColumn(1).setResizable(false);
            studentTable.getColumnModel().getColumn(2).setResizable(false);
            studentTable.getColumnModel().getColumn(3).setResizable(false);
            studentTable.getColumnModel().getColumn(4).setResizable(false);
            studentTable.getColumnModel().getColumn(5).setResizable(false);
        }

        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.LEADING)
                    .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jScrollPane1))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 181, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void saveBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_saveBtnActionPerformed
        // TODO add your handling code here:
        String fullname = fullnameTxt.getText();
        int age = Integer.parseInt(ageTxt.getText());
        String email = emailTxt.getText();
        String phone = phoneTxt.getText();
        String gender = genderCb.getSelectedItem().toString();
        
        if(currentIndex >= 0) {
            studentList.get(currentIndex).setFullname(fullname);
            studentList.get(currentIndex).setAge(age);
            studentList.get(currentIndex).setEmail(email);
            studentList.get(currentIndex).setPhone(phone);
            studentList.get(currentIndex).setGender(gender);
            
            StudentModify.update(studentList.get(currentIndex));
            
            currentIndex = -1;
        } else {
            Student std = new Student(fullname, gender, email, phone, age);
            StudentModify.insert(std);
            studentList = StudentModify.getStudentList(null);
        }
        
        resetBtnActionPerformed(null);
        
        showStudents();
    }//GEN-LAST:event_saveBtnActionPerformed

    private void resetBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_resetBtnActionPerformed
        // TODO add your handling code here:
        fullnameTxt.setText("");
        ageTxt.setText("");
        emailTxt.setText("");
        phoneTxt.setText("");
        genderCb.setSelectedIndex(0);
    }//GEN-LAST:event_resetBtnActionPerformed

    private void deleteBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_deleteBtnActionPerformed
        // TODO add your handling code here:
        if(currentIndex < 0) {
            JOptionPane.showMessageDialog(rootPane, "Chua co sinh vien nao dc chon!!!");
            return;
        }
        int option = JOptionPane.showConfirmDialog(rootPane, "Ban chac chan muon xoa sinh vien nay khong?");
        System.out.println("option: " + option);
        if(option != 0) {
            return;
        }
        
        StudentModify.delete(studentList.get(currentIndex).getId());
        studentList.remove(currentIndex);
        currentIndex = -1;
        
        showStudents();
    }//GEN-LAST:event_deleteBtnActionPerformed

    private void findBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findBtnActionPerformed
        // TODO add your handling code here:
        String s = JOptionPane.showInputDialog(rootPane, "Nhap ten sinh vien can tim kiem");
        studentList = StudentModify.getStudentList(s);
        
        showStudents();
    }//GEN-LAST:event_findBtnActionPerformed

    /**
     * @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(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.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 StudentFrame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTextField ageTxt;
    private javax.swing.JButton deleteBtn;
    private javax.swing.JTextField emailTxt;
    private javax.swing.JButton findBtn;
    private javax.swing.JTextField fullnameTxt;
    private javax.swing.JComboBox<String> genderCb;
    private javax.swing.JButton jButton3;
    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.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField phoneTxt;
    private javax.swing.JButton resetBtn;
    private javax.swing.JButton saveBtn;
    private javax.swing.JTable studentTable;
    // End of variables declaration//GEN-END:variables
}

#Student.java

/*
 * 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 lesson01;

/**
 *
 * @author Diep.Tran
 */
public class Student {
    int id;
    String fullname, gender, email, phone;
    int age;

    public Student(int id, String fullname, String gender, String email, String phone, int age) {
        this.id = id;
        this.fullname = fullname;
        this.gender = gender;
        this.email = email;
        this.phone = phone;
        this.age = age;
    }

    public Student() {
    }

    public Student(String fullname, String gender, String email, String phone, int age) {
        this.fullname = fullname;
        this.gender = gender;
        this.email = email;
        this.phone = phone;
        this.age = age;
    }
    
    public int getId() {
        return id;
    }

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

    public String getFullname() {
        return fullname;
    }

    public void setFullname(String fullname) {
        this.fullname = fullname;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
    
    
}