thực hành java võ tấn dũng votandung

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import buoi12.MyDatabase;
import java.sql.ResultSet;

import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.swing.JOptionPane;

import javax.swing.table.DefaultTableModel;
public class MyFrame extends javax.swing.JFrame
{

MyDatabase myDB;
public MyFrame() {
initComponents();

myDB = new MyDatabase();
NapDSNhanVienVaoTable();
NapBangCapVaoComboBox();
btnLuu.setEnabled(false);
btnHuy.setEnabled(false);

}

private void NapDSNhanVienVaoTable()
{

DefaultTableModel model = new DefaultTableModel();
// get data from database

String s = "select MaNhanVien,HoTenNhanVien,NgaySinh,DiaChi,DienThoai,TenBangCap from NhanVien as a,
BangCap as b where a.MaBangCap = b.MaBangCap";

//ResultSet rs = myDB.TruyVan("select * from NhanVien");
ResultSet rs = myDB.TruyVan(s);

if(rs==null)
{

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}
try {

// load column name

ResultSetMetaData rsMD = rs.getMetaData();
int colNumber = rsMD.getColumnCount();
Object[] arr = new Object[colNumber];
for (int i = 0; i < colNumber; i++) {

arr[i] = rsMD.getColumnName(i + 1);
}

model.setColumnIdentifiers(arr);
// load data from database to table
while (rs.next()) {

for (int i = 0; i < colNumber; i++) {
arr[i] = rs.getObject(i + 1);
}

model.addRow(arr);
}

} catch (SQLException e) {

}

tableNhanVien.setModel(model);

}

---
private void NapItemDuocChon()

{

if (tableNhanVien.getSelectedRow() < 0) {
return;

}

int row = tableNhanVien.getSelectedRow();

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dtpNgaySinh.setDate((Date)tableNhanVien.getValueAt(row, 2));

tfDienThoai.setText((String)tableNhanVien.getValueAt(row, 3));
tfDiaChi.setText((String)tableNhanVien.getValueAt(row, 4));
//cot 5???

//dtpNgaySinh.requestFocus();
//dtpNgaySinh.setEnabled(true);

for(int i=0;i<cbbBangCap.getItemCount();i++)

if(cbbBangCap.getItemAt(i).equals((String)tableNhanVien.getValueAt(row, 5)))
cbbBangCap.setSelectedIndex(i);

}

---
private void NapBangCapVaoComboBox()

{

cbbBangCap.removeAllItems();

String s = "select TenBangCap from BangCap";
ResultSet rs = myDB.TruyVan(s);

if(rs==null)
{

JOptionPane.showMessageDialog(this,"Loi o ham NapBangCapVaoComboBox");
return;

}
try {

while (rs.next()) {

cbbBangCap.addItem(rs.getString(1));
}

} catch (SQLException e) {

}
}

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Xoa();

btnThem.setEnabled(false);
btnLuu.setEnabled(true);
btnHuy.setEnabled(true);
btnXoa.setEnabled(false);
btnSua.setEnabled(false);
}

---
private void btnLuuActionPerformed(java.awt.event.ActionEvent evt)

{

String ht= tfHoTen.getText();

SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");

//String ns = (dtpNgaySinh.getDate()).toString(); Date d = dtpNgaySinh.getDate();
Date date = dtpNgaySinh.getDate();

System.out.println(sdf.format(date));

String dc = tfDiaChi.getText();
String sdt = tfDienThoai.getText();
int bc = cbbBangCap.getSelectedIndex();

String s = "insert into NHANVIEN(HoTenNhanVien,NgaySinh,DiaChi,DienThoai,MaBangCap) values(N'" + ht +
"','" + sdf.format(date) + "',N'" + dc + "','" + sdt + "'," + bc + ");";

System.out.print(s);

//String s = "insert into NHANVIEN(HoTenNhanVien,NgaySinh,DiaChi,DienThoai,MaBangCap)values('" + ht +
"','" + ns + "','" + dc + "','" + sdt + "'," + bc + ");";

//String s = "insert into NHANVIEN values('" + ht + "','" + "3/3/2016" + "','" + dc + "','" + sdt +
"'," + bc + ");";

myDB.ThemXoaSua(s);

tableNhanVien.removeAll();
//xuat lai cai table trong giao
//tableNhanVien.repaint();
Xoa();

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btnLuu.setEnabled(false);
btnHuy.setEnabled(false);
btnXoa.setEnabled(true);
btnSua.setEnabled(true);
NapDSNhanVienVaoTable();
}

---
private void btnXoaActionPerformed(java.awt.event.ActionEvent evt)

{

if (tableNhanVien.getSelectedRow() < 0) {

JOptionPane.showMessageDialog(this, "Hãy chọn một dòng của bảng", "Báo lỗi xóa một
dòng", JOptionPane.ERROR_MESSAGE);

return;
}

int row = tableNhanVien.getSelectedRow();

int mnv = (int)tableNhanVien.getValueAt(row, 0); //.toString();
//String s = "delete from NHANVIEN where MaNhanVien = '" + mnv + "'";
String s = "delete from NHANVIEN where MaNhanVien = " + mnv;// + "'";

myDB.ThemXoaSua(s);

tableNhanVien.removeAll();
//xuat lai cai table trong giao
//tableNhanVien.repaint();
Xoa();

btnThem.setEnabled(true);
btnLuu.setEnabled(false);
btnHuy.setEnabled(false);
btnXoa.setEnabled(true);
btnSua.setEnabled(true);
NapDSNhanVienVaoTable();

}

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private void btnSuaActionPerformed(java.awt.event.ActionEvent evt)
{

if (tableNhanVien.getSelectedRow() < 0) {

JOptionPane.showMessageDialog(this, "Hãy chọn má»™t dòng của bảng", "Báo lá»—i sá»a má»™t
dòng", JOptionPane.ERROR_MESSAGE);

return;
}

int row = tableNhanVien.getSelectedRow();

int mnv = (int)tableNhanVien.getValueAt(row, 0); //.toString();
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");

/////

String ht= tfHoTen.getText();

Date date = dtpNgaySinh.getDate();
//sdf.format(date);

String dc = tfDiaChi.getText();
String sdt = tfDienThoai.getText();
int bc = cbbBangCap.getSelectedIndex();
////

//String s = "delete from NHANVIEN where MaNhanVien = " + mnv;// + "'";

String s = "update NHANVIEN set Hotennhanvien = '" + ht + "',ngaysinh='" + sdf.format(date) + "',Diachi=
'" + dc + "',Dienthoai= '" + sdt + "',MaBangCap=" + bc + " where manhanvien =" + mnv +";";//N'" +

txtMaNhanVien.Text + "'";
myDB.ThemXoaSua(s);

tableNhanVien.removeAll();
//xuat lai cai table trong giao

//tableNhanVien.repaint();
Xoa();

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}

---
private void tableNhanVienMouseClicked(java.awt.event.MouseEvent evt) {

NapItemDuocChon();
}

---
private void Xoa()

{

tfMaNhanVien.setText("");
tfHoTen.setText("");

dtpNgaySinh.setDate(new Date());
tfDiaChi.setText("");

tfDienThoai.setText("");

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