romulusclient.java

《Java案例开发》源代码( 考勤系统的完整实现！） 包括数据库 网络通讯＆uml

/*
 * RomulusClient.java
 *
 * Created on 2004年1月14日, 上午10:21
 */

package romulus.UI;

import java.io.*;
import java.sql.*;

/**
 *
 * @author  Administrator
 */
public class RomulusClient extends javax.swing.JFrame implements java.beans.PropertyChangeListener{
    
    /** Creates new form RomulusClient */
    public RomulusClient() {
        initComponents();
        startWork();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        topLabel = new javax.swing.JLabel();
        bottomLabel = new javax.swing.JLabel();
        
        setTitle("RomulusClient");
        setFont(new java.awt.Font("Arial", 0, 12));
        setResizable(false);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
            }
        });
        
        topLabel.setFont(getFont());
        topLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        topLabel.setText("Romulus Test Application Client For Test");
        getContentPane().add(topLabel, java.awt.BorderLayout.NORTH);
        
        bottomLabel.setFont(getFont());
        bottomLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        bottomLabel.setText("Copyright 1998-2004");
        getContentPane().add(bottomLabel, java.awt.BorderLayout.SOUTH);
        
        pack();
        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setSize(new java.awt.Dimension(320, 240));
        setLocation((screenSize.width-320)/2,(screenSize.height-240)/2);
    }//GEN-END:initComponents
    
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
        System.exit(0);
    }//GEN-LAST:event_exitForm
    
    /**
     *Start the client work.
     */
    public void startWork(){
        //add the LoginPanel
        login = new LoginPanel();
        getContentPane().add(login, java.awt.BorderLayout.CENTER);
        login.addPropertyChangeListener(this);
    }
    
    //property change
    public void propertyChange(java.beans.PropertyChangeEvent PCEvent) {
        try{
            //login
            if(PCEvent.getSource() == login){
                String prop = PCEvent.getPropertyName();
                if(prop.equals(LoginPanel.PropName)){
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.WAIT_CURSOR));
                    LoginProcess(PCEvent);
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.DEFAULT_CURSOR));
                }//else name
            }
            //question
            else if(PCEvent.getSource() == question){
                String prop = PCEvent.getPropertyName();
                if(prop.equals(QuestionPanel.PropName_Exit)){
                    System.exit(0);
                }
                else if(prop.equals(QuestionPanel.PropName_Commit)){
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.WAIT_CURSOR));
                    QuestionProcess(PCEvent);
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.DEFAULT_CURSOR));
                }
            }
            //grade
            else if(PCEvent.getSource() == grade){
                String prop = PCEvent.getPropertyName();
                if(prop.equals(GradePanel.PropName)){
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.WAIT_CURSOR));
                    GradeProcess();
                    this.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.DEFAULT_CURSOR));
                }
            }
            
        }
        catch(java.io.IOException e){
            ErrorMSG(e.toString(), true);
        }
    }
    
    //login property process
    private void LoginProcess(java.beans.PropertyChangeEvent PCEvent) throws java.io.IOException{
        String value = PCEvent.getNewValue().toString();
        if(value.equals(LoginPanel.Prop_Exit)){
            System.exit(0);
        }
        else{
            //set the RomulusTestClient
            romulus.NET.RomulusTestClient client = new romulus.NET.RomulusTestClient();
            System.out.println(PCEvent.getNewValue().toString());
            if(client.UserCheck(PCEvent.getNewValue().toString())){
                
                getContentPane().remove(login);
                
                //get Test to test
                client = new romulus.NET.RomulusTestClient();
                String testid = getTestIdent(PCEvent.getNewValue().toString());
                romulus.Test t = client.GetTest(testid);
                
                String username = getUserName(PCEvent.getNewValue().toString());
                this.testinfo = new romulus.Manager.TestInfo(username, t, 0.0, java.util.Calendar.getInstance().getTime().toString());
                
                question = new QuestionPanel(t, false);
                getContentPane().add(question, java.awt.BorderLayout.CENTER);
                question.addPropertyChangeListener(this);
                
                java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
                this.setSize(new java.awt.Dimension(600, 400));
                this.setLocation((screenSize.width-600)/2,(screenSize.height-400)/2);
                this.repaint();
                this.getContentPane().repaint();
                this.validate();
            }
            else{
                ErrorMSG("Incorrect Login Information", false);
            }
        }
    }
    
    //question event process
    private void QuestionProcess(java.beans.PropertyChangeEvent PCEvent)  throws java.io.IOException{
        getContentPane().remove(question);
        grade = new GradePanel();
        getContentPane().add(grade);
        grade.setLabel("Now grading the test...");
        this.repaint();
        this.getContentPane().repaint();
        this.validate();
        
        System.out.println(testinfo.getName());
        this.testinfo.setTest((romulus.Test)(PCEvent.getNewValue()));
        romulus.NET.RomulusTestClient client = new romulus.NET.RomulusTestClient();
        this.testinfo = client.GradeTest(testinfo);
        System.out.println(testinfo.getName());
        
        int i_score = (int)(testinfo.getScore()*10000);
        double d_score = (double)i_score/100.00;
        grade.setLabel("Your score is "+d_score+"(%)");
        grade.setProcess(false);
        grade.setButton(true);
        grade.addPropertyChangeListener(this);
        this.repaint();
        this.getContentPane().repaint();
        this.validate();
        
    }
    
    //grade event process
    private void GradeProcess()  throws java.io.IOException{
        getContentPane().remove(grade);
        question = new QuestionPanel(testinfo.getTest(), true);
        getContentPane().add(question, java.awt.BorderLayout.CENTER);
        question.addPropertyChangeListener(this);
        this.repaint();
        this.getContentPane().repaint();
        this.validate();
        
    }
    
    //get testnum
    //Std1|std1|1 to 1
    private static String getTestIdent(String info){
        int begin = info.lastIndexOf('|');
       return info.substring(begin+1);
    }
    //Std1|std1|1 to Std1
    private static String getUserName(String info){
        int begin = info.indexOf('|');
        String name = info.substring(0, begin);
        return name;
    }
    
    //show msg
    private void ErrorMSG(String msg, boolean exit){
        //for JOptionPane can not set the font
        String msgout = "<html><font face=\"Comic Sans MS\" size=3>"+msg+"</font></html>";
        String[] Buttons  = {"<html><font face=\"Comic Sans MS\" size=3>OK</font></html>"};
        
        javax.swing.JOptionPane.showOptionDialog(this, msgout, "Message",
        javax.swing.JOptionPane.DEFAULT_OPTION, javax.swing.JOptionPane.ERROR_MESSAGE,
        null, Buttons, Buttons[0]);
        
        if(exit){
            System.exit(0);
        }
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        RomulusClient rc = new RomulusClient();
        rc.show();
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel topLabel;
    private javax.swing.JLabel bottomLabel;
    // End of variables declaration//GEN-END:variables
    
    //The panels used in the client
    private LoginPanel login;
    private QuestionPanel question;
    private GradePanel grade;
    private romulus.Manager.TestInfo testinfo;
    //End of panels
}