mainframe.java~34~

基于数据库组件的系统开发的实例

package addresssys;

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

public class MainFrame extends JFrame {
  JPanel contentPane;
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JPasswordField jPasswordField1 = new JPasswordField();
  JButton jButton1 = new JButton();
  Database database1 = new Database();

  QueryDataSet queryDataSet1 = new QueryDataSet();
  JRadioButton jRadioButton1 = new JRadioButton();
  JRadioButton jRadioButton2 = new JRadioButton();
  JRadioButton jRadioButton3 = new JRadioButton();
  JButton jButton2 = new JButton();
  ButtonGroup buttonGroup1 = new ButtonGroup();
  ParameterRow parameterRow1 = new ParameterRow();
  Column column1 = new Column();
  Column column2 = new Column();
  QueryDataSet queryDataSet2 = new QueryDataSet();


  //Construct the frame
  public MainFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel1.setText("用户名：");
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(300, 300));
    this.setTitle("多用户通讯簙系统");
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel2.setText("密   码：");
    jTextField1.setFont(new java.awt.Font("Dialog", 0, 14));
    jTextField1.setText("");
    jPasswordField1.setFont(new java.awt.Font("Dialog", 0, 14));
    jPasswordField1.setText("");
    jButton1.setFont(new java.awt.Font("Dialog", 0, 14));
    jButton1.setText("确   定");
    jButton1.addActionListener(new MainFrame_jButton1_actionAdapter(this));
    contentPane.setFont(new java.awt.Font("Dialog", 0, 14));
    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor("jdbc:microsoft:sqlserver://localhost:1433;DataBaseName=addresslist", "sa", "", false, "com.microsoft.jdbc.sqlserver.SQLServerDriver"));

    jRadioButton1.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton1.setSelected(true);
    jRadioButton1.setText("登录");
    jRadioButton2.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton2.setText("修改密码");
    jRadioButton3.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton3.setText("注册");
    jButton2.setText("退   出");
    jButton2.addActionListener(new MainFrame_jButton2_actionAdapter(this));
    jButton2.setFont(new java.awt.Font("Dialog", 0, 14));



    column1.setColumnName("UserName");
    column1.setDataType(com.borland.dx.dataset.Variant.STRING);
    column1.setDefault("");
    column1.setServerColumnName("NewColumn1");
    column1.setSqlType(0);
    column2.setColumnName("Password");
    column2.setDataType(com.borland.dx.dataset.Variant.STRING);
    column2.setDefault("");
    column2.setServerColumnName("NewColumn2");
    column2.setSqlType(0);
    parameterRow1.setColumns(new Column[] {column1, column2});
    queryDataSet2.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(database1, "select * from address_users where UserName=:UserName and Password=:Password", parameterRow1, true, Load.ALL));
    queryDataSet1.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(database1, "select * from address_users", null, true, Load.ALL));
    contentPane.add(jLabel2, new XYConstraints(52, 131, 68, 29));
    contentPane.add(jPasswordField1,  new XYConstraints(131, 131, 113, 30));
    contentPane.add(jLabel1,  new XYConstraints(51, 71, 68, 29));
    contentPane.add(jTextField1,  new XYConstraints(129, 71, 113, 30));
    contentPane.add(jRadioButton1, new XYConstraints(46, 30, -1, 20));
    contentPane.add(jRadioButton3,  new XYConstraints(213, 30, -1, 20));
    contentPane.add(jRadioButton2,  new XYConstraints(118, 30, 87, 20));
    contentPane.add(jButton2, new XYConstraints(160, 193, 74, 30));
    contentPane.add(jButton1, new XYConstraints(59, 193, 74, 30));
    buttonGroup1.add(jRadioButton1);
    buttonGroup1.add(jRadioButton2);
    buttonGroup1.add(jRadioButton3);
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void jButton1_actionPerformed(ActionEvent e) {
    String userName=jTextField1.getText().trim();
    String password=new String(jPasswordField1.getPassword());
    if(userName.equals("")||password.equals("")){
      JOptionPane.showMessageDialog(this,"请输入用户名和密码！");
      return;
    }
    if(jRadioButton3.isSelected()){
      queryDataSet1.open(); //打开并运行查询，得到结果集
      queryDataSet1.last(); //移到记录集的最后
      queryDataSet1.insertRow(false);//在记录集的最后插入一行记录
      queryDataSet1.setString("UserName",userName);//设置插入记录的UseName字段值
      queryDataSet1.setString("Password",password);//设置插入记录的Password字段值
      database1.saveChanges(queryDataSet1);//将对记录集的修改保存到数据库中
      JOptionPane.showMessageDialog(this,"成功注册用户");
    }
    else {
      //①此处将插入登录与修改密码处理代码
      parameterRow1.setString("UserName",userName);//设置参数对象的UserName字段的值
      parameterRow1.setString("Password",password);//设置参数对象Password字段的值
      queryDataSet2.open();
      if(queryDataSet2.rowCount()>0){//用户存在
        if(jRadioButton1.isSelected()){
          //②此处将插入转入通讯录维护界面的代码
          AddrMaintainDialog addrMaintain=new AddrMaintainDialog(this,"通讯录维护",false,queryDataSet2);
          addrMaintain.show();
        }
        else if(jRadioButton2.isSelected()){
          PasswordModifyDialog passwordModify=new PasswordModifyDialog(this,"用户密码修改",false,database1,queryDataSet2);
          passwordModify.show();
        }
      }
    }
  }


  void jButton2_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
}

class MainFrame_jButton1_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;

  MainFrame_jButton1_actionAdapter(MainFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}


class MainFrame_jButton2_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;

  MainFrame_jButton2_actionAdapter(MainFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }

}