bookservice.java

以一个酒店的进销存系统为例

package com.csbook.restaurant;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
import java.util.*;
import com.borland.jbcl.layout.*;

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

public class BookService extends JInternalFrame {

  JPanel panel1 = new JPanel();
  JPanel jPanel1 = new JPanel();
  JPanel jPanel3 = new JPanel();
  BorderLayout borderLayout4 = new BorderLayout();
  JLabel jLabel10 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JTextField customer = new JTextField();
  JPanel jPanel6 = new JPanel();
  JLabel jLabel6 = new JLabel();
  JLabel jLabel1 = new JLabel();
  JTextField tel = new JTextField();
  JLabel jLabel3 = new JLabel();
  GridLayout gridLayout2 = new GridLayout(4,4);
  JTextField bookDate = new JTextField();
  JTextField operator = new JTextField();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel15 = new JLabel();
  JLabel jLabel16 = new JLabel();
  JLabel jLabel17 = new JLabel();
  JLabel jLabel18 = new JLabel();
  JLabel jLabel19 = new JLabel();
  JLabel jLabel20 = new JLabel();
  TextArea remark=new TextArea();
  JButton cancel = new JButton();
  JButton ok = new JButton();
  String currentOper="";
  JLabel jLabel8 = new JLabel();
  JTextField roomRemark = new JTextField();
  JLabel jLabel21 = new JLabel();
  JLabel jLabel12 = new JLabel();
  JTextField roomType = new JTextField();
  JLabel jLabel14 = new JLabel();
  JPanel jPanel8 = new JPanel();
  JComboBox roomNo = new JComboBox();
  JLabel jLabel11 = new JLabel();
  JLabel jLabel22 = new JLabel();
  JLabel jLabel13 = new JLabel();
  JLabel jLabel7 = new JLabel();
  GridLayout gridLayout4 = new GridLayout(4,4);
  JTextField roomCapacity = new JTextField();
  JLabel jLabel9 = new JLabel();
  JTextField roomDept = new JTextField();
  BorderLayout borderLayout1 = new BorderLayout();

  public BookService(String title,boolean resizable,boolean closable,boolean maximizable,boolean iconifiable,String operator) {
    super(title,resizable,closable,maximizable,iconifiable);
    this.currentOper=operator;
    try {
      jbInit();
      //pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    panel1.setLayout(borderLayout1);
    jPanel3.setLayout(borderLayout4);
    jLabel10.setText("其它信息:");
    remark.setText("");
    jLabel4.setText("客人姓名:");
    jLabel2.setText("业务员：");
    customer.setText("");
    jPanel6.setLayout(gridLayout2);
    jLabel6.setOpaque(false);
    jLabel6.setRequestFocusEnabled(true);
    jLabel6.setText("");
    jLabel1.setText("订单基本信息：");
    jLabel3.setText("预定日期：");
    jLabel5.setOpaque(false);
    jLabel5.setRequestFocusEnabled(true);
    jLabel5.setText("");
    jLabel16.setText("客人信息");
    jLabel17.setText("联系电话:");
    jLabel20.setText("");
    jLabel19.setText("");
    jLabel18.setText("");
    jLabel15.setText("");
    bookDate.setText("");
    operator.setText("");
    tel.setText("");
    cancel.setText("取消");
    cancel.addActionListener(new BookService_cancel_actionAdapter(this));
    ok.setText("确定");
    ok.addActionListener(new BookService_ok_actionAdapter(this));
    jLabel8.setText("所属类别:");
    jLabel21.setOpaque(false);
    jLabel21.setRequestFocusEnabled(true);
    jLabel21.setText("");
    jLabel12.setText("房台备注信息:");
    roomType.setText("");
    jLabel14.setOpaque(false);
    jLabel14.setRequestFocusEnabled(true);
    jLabel14.setText("");
    jPanel8.setLayout(gridLayout4);
    roomNo.addActionListener(new BookService_roomNo_actionAdapter(this));
    jLabel11.setText("房台信息:");
    jLabel22.setText("容纳人数:");
    jLabel13.setText("房台编号:");
    jLabel7.setOpaque(false);
    jLabel7.setRequestFocusEnabled(true);
    jLabel7.setText("");
    roomCapacity.setText("");
    jLabel9.setText("所属部门:");
    roomDept.setText("");
    getContentPane().add(panel1,  BorderLayout.CENTER);
    panel1.add(jPanel6, BorderLayout.NORTH);
    jPanel6.add(jLabel1, null);
    jPanel6.add(jLabel20, null);
    jPanel6.add(jLabel19, null);
    jPanel6.add(jLabel18, null);
    jPanel6.add(jLabel3, null);
    jPanel6.add(bookDate, null);
    jPanel6.add(jLabel2, null);
    jPanel6.add(operator, null);
    jPanel6.add(jLabel16, null);
    jPanel6.add(jLabel15, null);
    jPanel6.add(jLabel5, null);
    jPanel6.add(jLabel6, null);
    jPanel6.add(jLabel4, null);
    jPanel6.add(customer, null);
    jPanel6.add(jLabel17, null);
    jPanel6.add(tel, null);
    panel1.add(jPanel8, BorderLayout.CENTER);
    jPanel8.add(jLabel11, null);
    jPanel8.add(jLabel21, null);
    jPanel8.add(jLabel14, null);
    jPanel8.add(jLabel7, null);
    jPanel8.add(jLabel13, null);
    jPanel8.add(roomNo, null);
    jPanel8.add(jLabel9, null);
    jPanel8.add(roomDept, null);
    jPanel8.add(jLabel8, null);
    jPanel8.add(roomType, null);
    jPanel8.add(jLabel22, null);
    jPanel8.add(roomCapacity, null);
    jPanel8.add(jLabel12, null);
    jPanel8.add(roomRemark, null);
    panel1.add(jPanel3,  BorderLayout.SOUTH);
    jPanel3.add(jLabel10, BorderLayout.NORTH);
    jPanel3.add(remark,  BorderLayout.CENTER);
    this.getContentPane().add(jPanel1,  BorderLayout.SOUTH);
    jPanel1.add(ok, null);
    jPanel1.add(cancel, null);
    operator.setText(currentOper);
    operator.setEditable(false);
    this.prepareShow();
  }

  void ok_actionPerformed(ActionEvent e) {
    //验证输入参数的合法性
    if(customer.getText().trim().equals("")||tel.getText().trim().equals(""))
    {
      JOptionPane.showMessageDialog(this, "顾客姓名和联系电话不能为空", "错误",
                                   JOptionPane.ERROR_MESSAGE);
    }
    StringTokenizer st=new StringTokenizer(bookDate.getText(),"/");
   if(st.countTokens()!=3){
     JOptionPane.showMessageDialog(this, "请按照年/月/日的格式输入时间", "提示",
                                   JOptionPane.ERROR_MESSAGE);
     return;
   }
   //检查该房台是否已被预订
   boolean occupied=this.roomOccupied(roomNo.getSelectedItem().toString());
   if(occupied)
   {
     JOptionPane.showMessageDialog(this, "该房台在该日已被预订", "提示",JOptionPane.PLAIN_MESSAGE);
     return;
   }
   //预订房台
      Connection conn=null;
      PreparedStatement ps=null;
   try{
      conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Restaurant;user=user;password=user");
      ps=conn.prepareStatement("insert into roomBook(operator,customer,tel,roomNo,bookDate,remark) values(?,?,?,?,?,?)");
      ps.setString(1,operator.getText());
      ps.setString(2,customer.getText());
      ps.setString(3,tel.getText());
      ps.setString(4,roomNo.getSelectedItem().toString());
      ps.setString(5,bookDate.getText());
      ps.setString(6,remark.getText());
      ps.executeUpdate();
      JOptionPane.showMessageDialog(this, "已成功预定该房台", "操作",JOptionPane.PLAIN_MESSAGE);
    }
    catch(SQLException ex){
        ex.printStackTrace();
    }
    finally{
      if(ps!=null)try{ps.close();}catch(SQLException ignore){}
      if(conn!=null)try{conn.close();}catch(SQLException ignore){}
    }
  }

  private boolean roomOccupied(String roomNo)
  {
        Connection conn=null;
        PreparedStatement ps=null;
        ResultSet rs=null;
        boolean occupied=false;
        try{
          conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Restaurant;user=user;password=user");
          ps=conn.prepareStatement("select BookNo from roomBook where roomNo=? and datediff(Day,roomBook.bookDate,CAST(? AS datetime))=0");
          ps.setString(1,roomNo);
          ps.setString(2,bookDate.getText());
          rs=ps.executeQuery();
          if(rs.next())
            occupied=true;
        }
        catch(SQLException ex){
            ex.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){}
          }
       return occupied;
  }

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

  public 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 id from room");
        rs=ps.executeQuery();
        while(rs.next())
          roomNo.addItem(rs.getString("id"));
      }
      catch(SQLException ex){
          ex.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 roomNo_actionPerformed(ActionEvent e) {
       Connection conn=null;
       PreparedStatement ps=null;
       ResultSet rs=null;
       try{
         String currentRoom=roomNo.getSelectedItem().toString();
         conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Restaurant;user=user;password=user");
         ps=conn.prepareStatement("select * from room where id=?");
         ps.setString(1,currentRoom);
         rs=ps.executeQuery();
         if(rs.next()){
           roomDept.setText(rs.getString("deptName"));
           roomType.setText(rs.getString("type"));
           roomCapacity.setText(rs.getString("capacity"));
           roomRemark.setText(rs.getString("remark"));
         }
       }
       catch(SQLException ex){
           ex.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){}
         }
  }
}

class BookService_ok_actionAdapter implements java.awt.event.ActionListener {
  BookService adaptee;

  BookService_ok_actionAdapter(BookService adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.ok_actionPerformed(e);
  }
}

class BookService_cancel_actionAdapter implements java.awt.event.ActionListener {
  BookService adaptee;

  BookService_cancel_actionAdapter(BookService adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.cancel_actionPerformed(e);
  }

}

class BookService_roomNo_actionAdapter implements java.awt.event.ActionListener {
  BookService adaptee;

  BookService_roomNo_actionAdapter(BookService adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.roomNo_actionPerformed(e);
  }
}