Java 实现当当泄露数据快速检索

package com.dangdang.serach; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.util.Vector; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; public class MainFrame extends JFrame implements ActionListener { private DataSearch ds; private JScrollPane sPanel; private Vector vecResult; private JPanel panel; private JLabel lab1; private JButton SerchBtn; private JButton CreateIndexBtn; private JTextField txt; private JCheckBox checkBox; private JTextArea area; public MainFrame(String file) { super(); this.setTitle("dangdang data search"); // set position and size this.setBounds(300, 300, 800, 500); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setResizable(false); // init mainInit(); ds = new DataSearch(file); vecResult = new Vector(); } /** * init the swing form */ public void mainInit() { panel = new JPanel(); lab1 = new JLabel("please input name:"); lab1.setBounds(30, 10, 200, 30); SerchBtn = new JButton("search"); SerchBtn.setBounds(440, 10, 80, 30); SerchBtn.addActionListener(this); CreateIndexBtn = new JButton("create index file"); CreateIndexBtn.setBounds(600, 10, 150, 30); CreateIndexBtn.addActionListener(this); txt = new JTextField(); txt.setBounds(150, 10, 270, 30); checkBox = new JCheckBox("index"); checkBox.setBounds(530, 10, 70, 30); area = new JTextArea(); area = new JTextArea(""); area.setVisible(true); sPanel = new JScrollPane(); sPanel.getViewport().add(area); sPanel.setBounds(7, 45, 780, 400); panel.add(lab1); panel.add(txt); panel.add(sPanel); panel.add(checkBox); panel.add(SerchBtn); panel.add(CreateIndexBtn); panel.setLayout(null); this.add(panel); } public void actionPerformed(ActionEvent event) { if (event.getSource() == SerchBtn) // { String searchName = txt.getText().trim(); if (searchName.length() < 2) { JOptionPane.showMessageDialog(null, "please enter the corrent name!"); return; } long start = System.currentTimeMillis(); area.setText(""); try { if (checkBox.isSelected()) { vecResult = ds.selectUseIndex(searchName); } else { vecResult = ds.select(searchName); } } catch (IOException e) { e.printStackTrace(); } for (int i = 0; i < vecResult.size(); i++) { area.append(vecResult.get(i) + "\n"); } long end = System.currentTimeMillis(); String tmp = "Total records��" + vecResult.size() + "��consuming time:" + (end - start) + "ms"; JOptionPane.showMessageDialog(null, tmp); } else if (event.getSource() == CreateIndexBtn) { try { long start = System.currentTimeMillis(); ds.createIndexFile(); long end = System.currentTimeMillis(); String tmp = "create index file " + "consuming time:" + (end - start) + "ms"; JOptionPane.showMessageDialog(null, tmp); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } }