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 ket_noi_excel; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.Iterator; import java.util.Vector; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JOptionPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; import ket_noi_DB.ket_noi; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.xssf.usermodel.XSSFWorkbook; /** * * @author sony */ public class ket_noi_excel_dvd { private final String ClassName = "com.mysql.jdbc.Driver"; private final String Url = "jdbc:mysql://localhost:3306/oop"; private final String User = "root"; private final String Pass = "tanphan"; private Connection conn; String tableDVD = "kho_dvd"; public ket_noi_excel_dvd() { try { Class.forName(ClassName); conn = DriverManager.getConnection(Url, User, Pass); System.out.println("Kt ni thnh cng!"); } catch (ClassNotFoundException ex) { System.out.println("Khng tm thy class!"); } catch (SQLException ex) { System.out.println("Li kt ni!"); } } public String returnType(String x) { String x1 = x.substring(x.lastIndexOf("\\"), x.length()); if (x1.lastIndexOf(".") == -1) { return null; } else { if (x1.substring(x1.lastIndexOf("."), x1.length()).equals(".xlsx")) { return "xlsx"; } else if (x1.substring(x1.lastIndexOf("."), x1.length()).equals(".xls")) { return "xls"; } else { return "wrongtype"; } } } public boolean trungMaSP(String s) { String query = "select * from " + tableDVD + " where `M SP` = " + s + ""; Statement st = null; ResultSet rs = null; try { st = conn.createStatement(); rs = st.executeQuery(query); if (rs.getRow() != 0) return true; } catch (SQLException ex) { Logger.getLogger(ket_noi_excel_cd.class.getName()).log(Level.SEVERE, null, ex); } return false; } public void loadFile(String path, boolean isXLS) { PreparedStatement pst = null; System.out.println("? ch?n"); try { org.apache.poi.ss.usermodel.Sheet sheet = null; if (isXLS == true) { org.apache.poi.ss.usermodel.Workbook workbook = new HSSFWorkbook(new FileInputStream(path)); sheet = workbook.getSheetAt(0); } else { org.apache.poi.ss.usermodel.Workbook workbook = new XSSFWorkbook(new FileInputStream(path)); sheet = workbook.getSheetAt(0); } for (Iterator<Row> rit = sheet.rowIterator(); rit.hasNext();) { Row row = rit.next(); int i = 1; String query = "INSERT INTO " + tableDVD + " (`Tn SP`, `M SP`, `Tn Din Vin`, `Tn ?o Din`, " + "`Gi Bn`, `S Lng`, `Th Loi`, `Nm Pht Hnh`, `Ngy Nhp`, `S Phiu`, `Chit Khu`)" + " VALUES (?,?,?,?,?,?,?,?,?,?,?);"; pst = conn.prepareStatement(query); for (Iterator<org.apache.poi.ss.usermodel.Cell> cit = row.cellIterator(); cit.hasNext();) { org.apache.poi.ss.usermodel.Cell cell = cit.next(); cell.setCellType(org.apache.poi.ss.usermodel.Cell.CELL_TYPE_STRING); if (i == 5) pst.setDouble(i, Double.parseDouble(cell.getRichStringCellValue().toString())); else if (i == 6 || i == 11) pst.setInt(i, Integer.parseInt(cell.getRichStringCellValue().toString())); else pst.setString(i, cell.getRichStringCellValue().toString()); i++; if (i >= 12) break; } if (pst.executeUpdate() > 0) { System.out.println("Thm thnh cng"); } else { System.out.println("Li khi thm sn phm\n"); } } } catch (IOException ex) { Logger.getLogger(ket_noi_excel_cd.class.getName()).log(Level.SEVERE, null, ex); } catch (SQLException ex) { Logger.getLogger(ket_noi_excel_cd.class.getName()).log(Level.SEVERE, null, ex); } JOptionPane.showMessageDialog(null, "? thm d liu thnh cng"); } public void saveFile(JTable tb, String path) { Workbook workbook = new HSSFWorkbook(); Sheet sheet = workbook.createSheet("kho dvd"); int numrow = 0; DefaultTableModel model = new DefaultTableModel(); model = (DefaultTableModel) tb.getModel(); Vector vt = model.getDataVector();// ly i tng vector ca model, cha ton b d liu for (int i = 0; i < tb.getRowCount(); i++) { Vector vtt = (Vector) vt.get(i);//ly dng i Row row = sheet.createRow(numrow); sheet.setColumnWidth(numrow, 5000); for (int j = 0; j < tb.getColumnCount() - 1; j++) {// tr i ct id cui cng ? phng khi import li ko c li out of range row.createCell(j).setCellValue(vtt.get(j).toString()); } numrow++; } try { FileOutputStream fout = new FileOutputStream(path); JOptionPane.showMessageDialog(null, "D liu c a ra file excel"); workbook.write(fout); fout.close(); } catch (FileNotFoundException ex) { Logger.getLogger(ket_noi_excel_cd.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(ket_noi_excel_cd.class.getName()).log(Level.SEVERE, null, ex); } } }