querystockinfor.java

以一个酒店的进销存系统为例

package com.csbook.restaurant;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author pengtao
 * @version 1.0
 */

public class QueryStockInfor extends JInternalFrame {
  JPanel jPanel1 = new JPanel();
  JPanel jPanel2 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JComboBox foodName = new JComboBox();
  GridLayout gridLayout1 = new GridLayout(1,4);
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JButton cancel = new JButton();
  JButton ok = new JButton();
  JDesktopPane desktop;

  public QueryStockInfor(String title,boolean resizable,boolean closable,boolean maximizable,boolean iconifiable,JDesktopPane desktop) {
    super(title,resizable,closable,maximizable,iconifiable);
    this.desktop=desktop;
    try {
      jbInit();
      pack();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jLabel1.setText("商品名称:");
    jPanel1.setLayout(gridLayout1);
    jLabel2.setText("");
    jLabel3.setText("");
    cancel.setText("取消");
    cancel.addActionListener(new QueryStockInfor_cancel_actionAdapter(this));
    ok.setText("确定");
    ok.addActionListener(new QueryStockInfor_ok_actionAdapter(this));
    this.getContentPane().add(jPanel1,  BorderLayout.NORTH);
    jPanel1.add(jLabel2, null);
    jPanel1.add(jLabel1, null);
    jPanel1.add(foodName, null);
    jPanel1.add(jLabel3, null);
    this.getContentPane().add(jPanel2,  BorderLayout.SOUTH);
    jPanel2.add(ok, null);
    jPanel2.add(cancel, null);
    this.prepareShow();
  }

  void cancel_actionPerformed(ActionEvent e) {
     this.dispose();
  }

  private void prepareShow(){
    Connection conn=null;
    PreparedStatement ps=null;
    ResultSet rs=null;
    try{
      conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Restaurant;user=user;password=user");
      ps=conn.prepareStatement("select distinct commodity from commodityIn");
      rs=ps.executeQuery();
      while(rs.next()){
        foodName.addItem(rs.getString("commodity"));
      }
    }
    catch(SQLException e){
      e.printStackTrace();
    }
    finally{
      if(rs!=null)try{rs.close();}catch(SQLException ignore){}
      if(ps!=null)try{ps.close();}catch(SQLException ignore){}
      if(conn!=null)try{conn.close();}catch(SQLException ignore){}
    }
  }

  void ok_actionPerformed(ActionEvent e) {
       QueryStockResult dlg = new QueryStockResult("查询结果",this.foodName.getSelectedItem().toString());
       dlg.setVisible(true);
       desktop.add(dlg);
       try {
           dlg.setSelected(true);
       } catch (java.beans.PropertyVetoException ex) {}

  }
}

class QueryStockInfor_cancel_actionAdapter implements java.awt.event.ActionListener {
  QueryStockInfor adaptee;

  QueryStockInfor_cancel_actionAdapter(QueryStockInfor adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.cancel_actionPerformed(e);
  }
}

class QueryStockInfor_ok_actionAdapter implements java.awt.event.ActionListener {
  QueryStockInfor adaptee;

  QueryStockInfor_ok_actionAdapter(QueryStockInfor adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.ok_actionPerformed(e);
  }
}