stuaddquerysysframe.java

用java和JBuild编写的学生管理系统

package stuaddquerysys;
import com.borland.jbcl.layout.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.lang.Object.*;
import java.sql.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;

/**
   * Title:				学生地址查询系统程序
   * Description:			教学示范
   * Copyright:				Copyright (c) 2003
   * Company:				北京师范大学计算机系
   * @author				孙一林
   * @version				1.0
   */


public class StuAddQuerySysFrame extends JFrame {
  private JPanel contentPane;
  private XYLayout xYLayout1 = new XYLayout();           // 构造XYLayout布局管理器
  // 创建显示信息使用的组件
  private Label label1 = new Label();
  private TextField stunumField = new TextField();
  private TextField nameField = new TextField();
  private Label label2 = new Label();
  private TextField ageField = new TextField();
  private Label label3 = new Label();
  private TextField sexField = new TextField();
  private Label label4 = new Label();
  private TextField departmentField = new TextField();
  private Label label5 = new Label();
  private TextField teleField = new TextField();
  private Label label6 = new Label();
  private TextField emailField = new TextField();
  private Label label7 = new Label();
  private Button addrecordButton = new Button();
  private Button deleteButton = new Button();
  private Button refreshButton = new Button();
  private Button stunumqueryButton = new Button();
  private Button allrecordButton = new Button();

  Vector vector;                                         // 声明一个向量对象
  String title[] = {"学号","姓名","年龄","性别","系名","电话","EMAIL"}; // 二维表列名
  Connection connection = null;                           // 声明Connection接口对象connection
  ResultSet rSet = null;                                  // 定义数据库查询的结果集
  Statement statement = null;                             // 定义查询数据库的Statement对象
  AbstractTableModel tm;                                  // 声明一个AbstractTableModel类对象tm

  public StuAddQuerySysFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    // 初始化组件
    label1.setText("学号");
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(571, 521));
    this.setTitle("学生地址表查询系统");
    label2.setText("姓名");
    label3.setText("年龄");
    label4.setText("性别");
    label5.setText("系名");
    label6.setText("电话");
    label7.setText("EMAIL地址");
    addrecordButton.setLabel("添加");
    deleteButton.setLabel("删除");
    refreshButton.setLabel("更新");
    stunumqueryButton.setLabel("学号查询");
    allrecordButton.setLabel("全部记录");
    addrecordButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        addrecordButton_actionPerformed(e);
      }
    });
    deleteButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        deleteButton_actionPerformed(e);
      }
    });
    refreshButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        refreshButton_actionPerformed(e);
      }
    });
    stunumqueryButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        stunumqueryButton_actionPerformed(e);
      }
    });
    allrecordButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        allrecordButton_actionPerformed(e);
      }
    });
    contentPane.add(teleField,  new XYConstraints(211, 370, 70, 29));
    contentPane.add(label1,  new XYConstraints(44, 315, 41, 29));
    contentPane.add(stunumField,  new XYConstraints(88, 315, 70, 29));
    contentPane.add(label2,  new XYConstraints(163, 315, 48, 29));
    contentPane.add(nameField,  new XYConstraints(212, 315, 70, 29));
    contentPane.add(label3,  new XYConstraints(293, 315, 35, 29));
    contentPane.add(ageField,  new XYConstraints(329, 315, 70, 29));
    contentPane.add(label4,  new XYConstraints(405, 315, 31, 29));
    contentPane.add(sexField,  new XYConstraints(440, 315, 70, 29));
    contentPane.add(label5,  new XYConstraints(42, 370, 44, 29));
    contentPane.add(departmentField,  new XYConstraints(89, 370, 70, 29));
    contentPane.add(label6,  new XYConstraints(163, 372, 49, 29));
    contentPane.add(label7,  new XYConstraints(292, 371, 67, 29));
    contentPane.add(emailField,  new XYConstraints(361, 370, 102, 29));
    contentPane.add(addrecordButton,  new XYConstraints(52, 416, 85, 32));
    contentPane.add(deleteButton,  new XYConstraints(147, 416, 85, 32));
    contentPane.add(refreshButton,  new XYConstraints(241, 416, 85, 32));
    contentPane.add(stunumqueryButton,  new XYConstraints(336, 416, 85, 32));
    contentPane.add(allrecordButton,  new XYConstraints(430, 416, 85, 32));
    createtable();                                 // 在初始化函数中调用createtable()函数显示表格
  }
  void createtable() {                             // 定义createtable()函数
    JTable table;                                  // 声明一个JTable类对象table
    JScrollPane scroll;                            // 声明一个滚动杠对象scroll
    vector = new Vector();                         // 创建向量对象
    tm = new AbstractTableModel() {                // 创建AbstractTableModel类对象tm
      public int getColumnCount() {                // 取得表格列数
        return title.length;
      }
      public int getRowCount() {                   // 取得表格行数
        return vector.size();
      }
      public Object getValueAt(int row, int column) {         // 取得单元格中的属性值
        if(!vector.isEmpty()) {
          return ((Vector)vector.elementAt(row)).elementAt(column);
        }
        else {
          return null;
        }
      }
      public void setValueAt(Object value, int row, int column) { // 数据模型不可编辑，该方法设置为空

      }
      public String getColumnName(int column) {                // 取得表格列名
        return title[column];
      }
      public Class getColumnClass(int c) {                     // 取得列所属对象类
        return getValueAt(0,c).getClass();
      }
      public boolean isCellEditable(int row, int column) {    // 设置单元格不可编辑，为缺省实现
        return false;
      }
    };
    table = new JTable(tm);                                    // 生成自己的数据模型
    table.setToolTipText("Display Query Result");              // 设置帮助提示
    table.setAutoResizeMode(table.AUTO_RESIZE_OFF);            // 设置表格调整尺寸模式
    table.setCellSelectionEnabled(false);                      // 设置单元格选择方式
    table.setShowHorizontalLines(true);                        // 设置是否显示单元格之间的分割线
    table.setShowVerticalLines(true);
    scroll = new JScrollPane(table);                           // 给表格加上滚动杠
    scroll.setBounds(6,20,540,250);
    contentPane.add(scroll,new XYConstraints(6, 20, 540, 250));
  }

  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void addrecordButton_actionPerformed(ActionEvent e) {// 处理addrecordButton(添加按钮)的ActionEvent
    try {
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");  // 实例化JDBC-ODBC桥的驱动
      String url = "jdbc:odbc:TestDbStu";             // 设置连接字符串
      connection = DriverManager.getConnection(url);  // 连接数据库
      // 创建Statement接口对象
      statement = connection.createStatement();
      String sql1 = "insert into studentbase (学号,姓名,年龄,性别,系名) values (" + Integer.parseInt(stunumField.getText()) +", '" + nameField.getText()+"'," +Integer.parseInt(ageField.getText())+",'"+sexField.getText()+"',"+"'"+departmentField.getText()+ "')";
      String sql2 = "insert into studentaddress (电话,Email地址,学号) values (" + "'" + teleField.getText()+"','" + emailField.getText()+"',"+Integer.parseInt(stunumField.getText())+")";
      statement.executeUpdate(sql2);             // 执行增加新的数据记录语句，向studentaddress 表中添加记录
      statement.executeUpdate(sql1);             // 执行增加新的数据记录语句，向studentbase表中添加记录
      // 清空信息框
      stunumField.setText("");
      nameField.setText("");
      ageField.setText("");
      sexField.setText("");
      departmentField.setText("");
      teleField.setText("");
      emailField.setText("");
    }
    catch(SQLException ex){                      // 捕捉异常
      System.out.println("\nERROR:----- SQLException -----\n");
      while (ex != null) {
        System.out.println("Message:   " + ex.getMessage());
        System.out.println("SQLState:  " + ex.getSQLState());
        System.out.println("ErrorCode: " + ex.getErrorCode());
        ex = ex.getNextException();
      }
    }
    catch(Exception ex ) {
      ex.printStackTrace();
    }
    finally {
      try {
        if(statement != null) {
          statement.close();                                // 关闭Statement接口实例
        }
        if(connection != null) {
          connection.close();                               // 关闭Connection接口实例
        }
      }
      catch (SQLException ex)  {
        System.out.println("\nERROR:----- SQLException -----\n");
        System.out.println("Message:   " + ex.getMessage( ));
        System.out.println("SQLState:  " + ex.getSQLState());
        System.out.println("ErrorCode: " + ex.getErrorCode());
      }
    }
  }