updateitem.java

利用JAVA开发的简单考试系统

package viewer;

import javax.swing.JTextField;
import java.awt.Rectangle;
import javax.swing.JLabel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import controller.command.*;
import model.persistency.PersistentItem;
import javax.swing.JOptionPane;
import java.awt.Point;
import java.awt.Dimension;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

/**
 * <p>Title: </p>
 * 更新操作框架
 * <p>Description: </p>
 * 用于更新操作，find按钮用于调出需要更新的题目信息
 */
public class UpdateItem extends OperateFrame{
   JLabel jLabel1 = new JLabel();
    JTextField timeTextField = new JTextField();
   JTextField difTextField = new JTextField();
   JTextField anTextField = new JTextField();
   JLabel jLabel2 = new JLabel();
   JTextField scTextField = new JTextField();
   JLabel jLabel3 = new JLabel();
   JTextField idTextField = new JTextField();
   JLabel jLabel4 = new JLabel();
   JLabel jLabel5 = new JLabel();
   JLabel jLabel6 = new JLabel();
    JButton findButton = new JButton();
    JScrollPane jScrollPane1 = new JScrollPane();
    JTextArea contentTextArea = new JTextArea();
    /**
     * constructor
     */
    public UpdateItem() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
      setSize(new Dimension(525, 440));
       setTitle("OLTS System");


        jLabel1.setText("Content");
        jLabel1.setBounds(new Rectangle(203, 73, 57, 24));
        jLabel6.setText("Score");
        jLabel6.setBounds(new Rectangle(284, 226, 77, 32));
        jLabel5.setText("Time");
        jLabel5.setBounds(new Rectangle(22, 300, 64, 29));
        jLabel4.setText("Difficulty");
        jLabel4.setBounds(new Rectangle(21, 222, 69, 35));
        idTextField.setBounds(new Rectangle(58, 65, 118, 30));
        jLabel3.setText("ID");
        jLabel3.setBounds(new Rectangle(21, 66, 59, 29));
        scTextField.setBounds(new Rectangle(351, 225, 118, 30));
        jLabel2.setText("Answer");
        jLabel2.setBounds(new Rectangle(283, 292, 60, 39));
        anTextField.setBounds(new Rectangle(351, 298, 118, 30));
        difTextField.setBounds(new Rectangle(117, 226, 118, 30));
        timeTextField.setBounds(new Rectangle(117, 298, 118, 30));
        findButton.setBounds(new Rectangle(59, 115, 117, 33));
        findButton.setText("find");
        findButton.addActionListener(new UpdateItem_findButton_actionAdapter(this));
        jScrollPane1.setBounds(new Rectangle(277, 62, 192, 116));
        this.getContentPane().add(scTextField);
        this.getContentPane().add(anTextField);
        this.getContentPane().add(difTextField);
        this.getContentPane().add(timeTextField);
        this.getContentPane().add(jLabel1);
        this.getContentPane().add(idTextField);
        this.getContentPane().add(jLabel3);
        this.getContentPane().add(findButton);
        this.getContentPane().add(jScrollPane1);
        this.getContentPane().add(jLabel4);
        this.getContentPane().add(jLabel5);
        this.getContentPane().add(jLabel6);
        this.getContentPane().add(jLabel2);
        jScrollPane1.getViewport().add(contentTextArea);
        super.subButton.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){
       trace();}
     });
        super.submitMenuItem.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){
       trace();}
     });
        super.submitButton.addActionListener(new ActionListener(){
          public void actionPerformed(ActionEvent e){
         trace();}
       });
    }
 /**
  * 对find按钮进行处理
  * 调用FindCommand,将得到的题目赋给父类的题目属性
  * 在相应文本框显示题目信息
  * @param e ActionEvent
  */
 public void findButton_actionPerformed(ActionEvent e) {
          String id = idTextField.getText();
          FindCommand fc = new FindCommand(id);
          super.t = fc.excute(id);
          String dif = super.t.getDifficulty();
          String time = new String();
          time = time.valueOf(super.t.getTime());
          String content = super.t.getContent();
          String answer = super.t.getAnswer();
          String score = new String();
          score = score.valueOf(super.t.getScore());
          difTextField.setText(dif);
          timeTextField.setText(time);
          anTextField.setText(answer);
          scTextField.setText(score);
          contentTextArea.setText(content);
          }
   /**
     *  对于父类的submit按钮,工具栏中的submit按钮，submit菜单项处理
     *  调用UpdateCommand对submit按钮进行处理
     *  成功更新后，将各文本框置空
     */
    private void trace(){
         String id = idTextField.getText();
         String difficulty = difTextField.getText();
         int time = Integer.parseInt(timeTextField.getText());
         String content =  contentTextArea.getText();
         float score = Float.parseFloat(scTextField.getText());
         String answer = anTextField.getText();
         super.t = new PersistentItem(1,id,difficulty,time,content,answer,score);
         OperateCommand uc = new UpdateCommand(this.t);
         uc.excute();
         idTextField.setText("");
         difTextField.setText("");
         timeTextField.setText("");
         anTextField.setText("");
         scTextField.setText("");
         contentTextArea.setText("");
       }
    }
//////////////////////////////////////////////////////////////////////////////
class UpdateItem_findButton_actionAdapter implements ActionListener {
    private UpdateItem adaptee;
    UpdateItem_findButton_actionAdapter(UpdateItem adaptee) {
        this.adaptee = adaptee;
    }

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