cardextend.java

基于数据库组件的系统开发的实例

package parkingsystem;

import java.awt.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import com.borland.dbswing.*;
import java.awt.event.*;
import com.borland.dx.sql.dataset.*;

import java.sql.*;

public class CardExtend extends JDialog {
  JPanel panel1 = new JPanel();
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JdbTextField jdbTextField1 = new JdbTextField();
  JComboBox jComboBox1 = new JComboBox();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel6 = new JLabel();
  JButton jButton1 = new JButton();
  QueryDataSet queryDataSet1 = new QueryDataSet();
  Database database1 = new Database();

  Database database;
  QueryDataSet queryDataSet;

  Timestamp timeLimit;
  JButton jButton2 = new JButton();

  public CardExtend(Frame frame, String title, boolean modal,Database database,QueryDataSet queryDataSet) {
    super(frame, title, modal);
    this.queryDataSet=queryDataSet;
    this.database=database;
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }


  private void jbInit() throws Exception {
    panel1.setLayout(xYLayout1);
    panel1.setMinimumSize(new Dimension(0, 0));
    panel1.setPreferredSize(new Dimension(400, 300));
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel1.setText("卡       号：");
    jLabel2.setText("有  效  期：");
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel3.setText("续期时长：");
    jLabel3.setFont(new java.awt.Font("Dialog", 0, 14));
    jdbTextField1.setFont(new java.awt.Font("Dialog", 0, 14));
    jdbTextField1.setEditable(false);
    jdbTextField1.setText("");
    jdbTextField1.setColumnName("CardID");
    jdbTextField1.setDataSet(queryDataSet);
    jLabel4.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel4.setText("应 收 费：");
    jLabel6.setFont(new java.awt.Font("Dialog", 0, 14));
    jComboBox1.setFont(new java.awt.Font("Dialog", 0, 14));
    jComboBox1.addActionListener(new CardExtend_jComboBox1_actionAdapter(this));
    jButton1.setFont(new java.awt.Font("Dialog", 0, 14));
    jButton1.setText("确   定");
    jButton1.addActionListener(new CardExtend_jButton1_actionAdapter(this));
    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor("jdbc:microsoft:sqlserver://localhost:1433;DataBaseName=carparkingdb", "sa", "", false, "com.microsoft.jdbc.sqlserver.SQLServerDriver"));
    queryDataSet1.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(database1, "select Price from cardtype where CardType=\'长期卡\'", null, true, Load.ALL));
    jLabel5.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel5.setText("");
    jButton2.addActionListener(new CardExtend_jButton2_actionAdapter(this));
    jButton2.setText("取   消");
    jButton2.addActionListener(new CardExtend_jButton2_actionAdapter(this));
    jButton2.setFont(new java.awt.Font("Dialog", 0, 14));
    getContentPane().add(panel1);
    panel1.add(jLabel1,    new XYConstraints(52, 40, 91, 37));
    panel1.add(jdbTextField1,    new XYConstraints(153, 44, 169, 28));
    panel1.add(jLabel2,    new XYConstraints(52, 88, 91, 37));
    panel1.add(jLabel3,    new XYConstraints(52, 135, 91, 37));
    panel1.add(jComboBox1,    new XYConstraints(153, 140, 169, 28));
    panel1.add(jLabel4,  new XYConstraints(52, 183, 91, 37));
    panel1.add(jLabel6,   new XYConstraints(153, 188, 165, 31));
    panel1.add(jLabel5,  new XYConstraints(153, 92, 169, 27));
    panel1.add(jButton1, new XYConstraints(64, 242, 109, 30));
    panel1.add(jButton2, new XYConstraints(216, 242, 109, 30));

    //给jComboBox1组件添加条目

    for(int i=0;i<=12;i++){
      jComboBox1.addItem(i+"");
    }
    timeLimit=queryDataSet.getTimestamp("TimeLimit");
    jLabel5.setText(timeLimit.toString());

  }

  void jComboBox1_actionPerformed(ActionEvent e) {
    int month=Integer.parseInt(jComboBox1.getSelectedItem().toString());
    queryDataSet1.open();
    double money=queryDataSet1.getBigDecimal("Price").doubleValue()*month;
    jLabel6.setText(money+"");//显示应收费
  }

  void jButton1_actionPerformed(ActionEvent e) {
    java.util.Date now=new java.util.Date();//获取系统当前时间
    Timestamp timeNow=new Timestamp(now.getTime());
    int month=Integer.parseInt(jComboBox1.getSelectedItem().toString());
    if(timeLimit.after(timeNow)){
      /*如果卡被续期卡的有效期未到期，在卡原有效期的基础上延期*/
      timeLimit.setMonth(timeLimit.getMonth()+month);
      queryDataSet.setTimestamp("TimeLimit",timeLimit);
    }
    else{
      /*如果卡已过有效期，从当前时间开始计算卡的有效期*/
      timeNow.setMonth(timeNow.getMonth()+month);
      queryDataSet.setTimestamp("TimeLimit",timeNow);
    }
    queryDataSet.saveChanges();//保存修改结果
  }

  void jButton2_actionPerformed(ActionEvent e) {
    queryDataSet.refresh();
    jComboBox1.setSelectedIndex(0);
  }
}

class CardExtend_jComboBox1_actionAdapter implements java.awt.event.ActionListener {
  CardExtend adaptee;

  CardExtend_jComboBox1_actionAdapter(CardExtend adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jComboBox1_actionPerformed(e);
  }
}

class CardExtend_jButton1_actionAdapter implements java.awt.event.ActionListener {
  CardExtend adaptee;

  CardExtend_jButton1_actionAdapter(CardExtend adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}

class CardExtend_jButton2_actionAdapter implements java.awt.event.ActionListener {
  CardExtend adaptee;

  CardExtend_jButton2_actionAdapter(CardExtend adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}