deletepanel.java

java私塾里的图书进销存项目的源代码,非常不错,J2SE基础知识复习非常有帮助!

package cn.javass.bookmgr.book.ui.panels;

import java.awt.*;
import javax.swing.JPanel;
import com.borland.jbcl.layout.*;
import javax.swing.*;
import java.awt.event.*;
import cn.javass.bookmgr.util.uiutil.ChangePanel;
import cn.javass.bookmgr.MainFrame;
import cn.javass.bookmgr.book.business.factory.BookFactory;
import cn.javass.bookmgr.book.valueobject.BookModel;
/**
 * 图书模块表现层用于删除图书的Panel
 *
 * <p>Title: Java私塾第一个Java项目——图书进销存系统（单机版）</p>
 * <p>Description: 网址:<a href="http://www.javass.cn">http://www.javass.cn</a>
 * 新电话:[phone]   新地址:北京市海淀区厂洼路5号院深博达商务楼5层</p>
 * <p>Copyright: Copyright (c) 2008</p>
 * <p>Company: Java私塾</p>
 * @author Java私塾
 * @version 1.0
 */
public class DeletePanel extends JPanel {
 //以下为本界面需要的组件定义
 XYLayout xYLayout1 = new XYLayout();
 JLabel jLabel1 = new JLabel();
 JLabel jLabel2 = new JLabel();
 JLabel jLabel3 = new JLabel();
 JLabel jLabel5 = new JLabel();
 JLabel jLabel6 = new JLabel();
 JTextField txt_Id = new JTextField();
 JTextField txt_name = new JTextField();
 JButton btn_delete = new JButton();
 JButton btn_back = new JButton();
 JTextField txt_inPrice = new JTextField();
 JTextField txt_salePrice = new JTextField();
 /**
  * 用来保持对主窗体的引用
  */
 MainFrame mf = null;
 /**
  * 需要删除的图书的String值
  */
 String str  = "";
 /**
  * 需要删除的图书Model
  */
 BookModel bm = null;
 /**
  * 构建删除图书的Panel
  * @param mf 主窗体的引用
  * @param str 图书的String值
  */
 public DeletePanel(MainFrame mf,String str) {
   try {
     this.str = str;
     this.mf = mf;
     jbInit();
   }
   catch(Exception ex) {
     ex.printStackTrace();
   }
 }
 /**
 * 真正进行组件初始化，并构建整个界面
 * @throws Exception
 */
 void jbInit() throws Exception {
   //1:根据传递过来的图书String，转换成为对应的图书Model
    bm = new BookModel(this.str);
   //2:把值设置到组件上，用于显示
   this.txt_name.setText(bm.getName());
   this.txt_Id.setText(bm.getId());
   this.txt_Id.setEditable(false);
   this.txt_inPrice.setText(""+bm.getInPrice());
   this.txt_salePrice.setText(""+bm.getSalePrice());

   jLabel1.setFont(new java.awt.Font("Dialog", 1, 30));
   jLabel1.setText("删除图书");
   this.setLayout(xYLayout1);
   jLabel2.setText("图书编号");
   jLabel3.setText("图书名称");
   jLabel5.setText("进货价格");
   jLabel6.setText("销售价格");

   btn_delete.setText("删除");
   btn_delete.addActionListener(new DeletePanel_btn_delete_actionAdapter(this));
   btn_back.setText("返回");
   btn_back.addActionListener(new DeletePanel_btn_back_actionAdapter(this));
   xYLayout1.setWidth(486);
   xYLayout1.setHeight(397);
   this.add(jLabel1, new XYConstraints(96, 12, 377, 82));
   this.add(jLabel2,   new XYConstraints(13, 91, 77, 30));
   this.add(jLabel3,    new XYConstraints(238, 90, 77, 30));
   this.add(txt_Id,  new XYConstraints(63, 93, 166, 33));
   this.add(txt_name,    new XYConstraints(295, 93, 166, 33));
   this.add(btn_back,      new XYConstraints(307, 251, 117, 46));
   this.add(jLabel5,  new XYConstraints(13, 164, 77, 30));
   this.add(txt_inPrice,     new XYConstraints(63, 169, 166, 33));
   this.add(jLabel6,  new XYConstraints(238, 164, 77, 30));
   this.add(txt_salePrice,     new XYConstraints(295, 169, 166, 33));
   this.add(btn_delete, new XYConstraints(142, 251, 117, 46));
 }
 /**
  * 点击删除按钮的事件处理
  * @param e Action事件对象
  */
 void btn_delete_actionPerformed(ActionEvent e) {
   //1:

   //2:

   //3:调用逻辑层Api，并获取返回值
   boolean flag = BookFactory.getInstance().createBookEbi().deleteBook(bm);
   //4:根据返回值选择新的Panel
   if(flag){
     ChangePanel.changePanel(mf,new ListPanel(mf,false,null));
   }else{
     JOptionPane.showMessageDialog(null,"很遗憾，删除失败了");
   }
 }
 /**
  * 点击返回按钮的事件处理
  * @param e Action事件对象
  */
 void btn_back_actionPerformed(ActionEvent e) {
   ChangePanel.changePanel(mf,new ListPanel(mf,false,null));
 }
}
//以下为事件处理中的Adaper类
class DeletePanel_btn_delete_actionAdapter implements java.awt.event.ActionListener {
 DeletePanel adaptee;

 DeletePanel_btn_delete_actionAdapter(DeletePanel adaptee) {
   this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
   adaptee.btn_delete_actionPerformed(e);
 }
}

class DeletePanel_btn_back_actionAdapter implements java.awt.event.ActionListener {
 DeletePanel adaptee;

 DeletePanel_btn_back_actionAdapter(DeletePanel adaptee) {
   this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
   adaptee.btn_back_actionPerformed(e);
 }
}