Java之------单机版书店管理系统(设计思想和设计模式系列七)库存模块

书店管理系统

书店管理系统可以说是设计模式及设计思想的一个比较经典的例子。

本系列将分为多个部分讲述此输电管理系统。

书店管理系统将分为：用户、图书、进货、销售和库存五个模块，另外还有公共包、工具包和登录包，另外还有一个框架。

对于分层设计，都是表现层可以调用逻辑层，逻辑层调用数据层，数据层调用工具和公共包，方向不可打乱，必须严格按照这种模式。

本篇将做库存模块。

注：本篇需要使用到的框架在本系列二的用户模块：

链接：http://blog.csdn.net/x121850182/article/details/51362269

数据层：

接口：

package cn.hncu.stock.dao.dao;import java.util.List;import cn.hncu.stock.vo.StockModel;import cn.hncu.stock.vo.StockQueryModel;public interface StockDAO {public boolean create(StockModel stock);public boolean upDate(StockModel stock);public StockModel getSingle(String uuid);public List<StockModel> getAll();public List<StockModel> getByCondition(StockQueryModel sqm);}

实现类：

package cn.hncu.stock.dao.impl;import java.util.ArrayList;import java.util.List;import cn.hncu.stock.dao.dao.StockDAO;import cn.hncu.stock.vo.StockModel;import cn.hncu.stock.vo.StockQueryModel;import cn.hncu.utils.FileIo;public class StockDAOImpl implements StockDAO {private final String FILE_NAME="stock.txt";@Overridepublic boolean create(StockModel stock) {List<StockModel> list=FileIo.read(FILE_NAME);for (StockModel model:list){if (model.getUuid().equals(stock.getUuid())){return false;}}list.add(stock);FileIo.write(list, FILE_NAME);return true;}@Overridepublic List<StockModel> getAll() {return FileIo.read(FILE_NAME);}@Overridepublic List<StockModel> getByCondition(StockQueryModel sqm) {List<StockModel> list=FileIo.read(FILE_NAME);List<StockModel> results=new ArrayList<StockModel>();for (StockModel model:list){if (sqm.getUuid()!=null&&sqm.getUuid().trim().length()>0){if (!model.getUuid().equals(sqm.getUuid())){continue;}}if (sqm.getBookUuid()!=null&&sqm.getBookUuid().trim().length()>0){if (!model.getBookUuid().equals(sqm.getBookUuid())){continue;}}if (sqm.getSumNum()>0){if (sqm.getSumNum()>model.getSumNum()){continue;}}if (sqm.getSumNum2()>0){if (sqm.getSumNum2()<model.getSumNum()){continue;}}results.add(model);}return results;}@Overridepublic StockModel getSingle(String uuid) {List<StockModel> list=FileIo.read(FILE_NAME);for (StockModel model:list){if (model.getUuid().equals(uuid)){return model;}}return null;}@Overridepublic boolean upDate(StockModel stock) {List<StockModel> list=FileIo.read(FILE_NAME);for (int i=0;i<list.size();i++){if (list.get(i).getUuid().equals(stock.getUuid())){list.set(i, stock);FileIo.write(list, FILE_NAME);return true;}}return false;}}

工厂类：

package cn.hncu.stock.dao.factory;import cn.hncu.stock.dao.dao.StockDAO;import cn.hncu.stock.dao.impl.StockDAOImpl;public class StockDAOFactory {public static StockDAO getStockDAO(){return new StockDAOImpl();}}

逻辑层：

接口：

package cn.hncu.stock.business.ebi;import java.util.List;import cn.hncu.stock.vo.StockModel;import cn.hncu.stock.vo.StockQueryModel;public interface StockEbi {public List<StockModel> getAll();public List<StockModel> getByCondition(StockQueryModel sqm);}

实现类：

package cn.hncu.stock.business.ebo;import java.util.List;import cn.hncu.stock.business.ebi.StockEbi;import cn.hncu.stock.dao.dao.StockDAO;import cn.hncu.stock.dao.factory.StockDAOFactory;import cn.hncu.stock.vo.StockModel;import cn.hncu.stock.vo.StockQueryModel;public class StockEbo implements StockEbi {StockDAO dao=StockDAOFactory.getStockDAO();@Overridepublic List<StockModel> getAll() {return dao.getAll();}@Overridepublic List<StockModel> getByCondition(StockQueryModel sqm) {return dao.getByCondition(sqm);}}

工厂类：

package cn.hncu.stock.business.factory;import cn.hncu.stock.business.ebi.StockEbi;import cn.hncu.stock.business.ebo.StockEbo;public class StockEbiFactory {public static StockEbi getStockEbi(){return new StockEbo();}}

值对象层：
StockModel

package cn.hncu.stock.vo;import java.io.Serializable;public class StockModel implements Serializable{private String uuid;private String bookUuid;private int sumNum;private String bookName;//显示给用户看的public String getUuid() {return uuid;}public void setUuid(String uuid) {this.uuid = uuid;}public String getBookUuid() {return bookUuid;}public void setBookUuid(String bookUuid) {this.bookUuid = bookUuid;}public int getSumNum() {return sumNum;}public void setSumNum(int sumNum) {this.sumNum = sumNum;}public String getBookName() {return bookName;}public void setBookName(String bookName) {this.bookName = bookName;}@Overridepublic int hashCode() {final int prime = 31;int result = 1;result = prime * result + ((uuid == null) ? 0 : uuid.hashCode());return result;}@Overridepublic boolean equals(Object obj) {if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;StockModel other = (StockModel) obj;if (uuid == null) {if (other.uuid != null)return false;} else if (!uuid.equals(other.uuid))return false;return true;}@Overridepublic String toString() {return "库存编号:" + uuid + ", 书名:" + bookName + ", 数量:" + sumNum + "本";}}

StockQueryModel

package cn.hncu.stock.vo;public class StockQueryModel extends StockModel{private int sumNum2;public int getSumNum2() {return sumNum2;}public void setSumNum2(int sumNum2) {this.sumNum2 = sumNum2;}}

表现层：
库存只能通过进货与销售来改变其值，因此表现层只能有查询功能与列表。

列表：

/* * ListPanel.java * * Created on __DATE__, __TIME__ */package cn.hncu.stock.ui;import java.util.List;import javax.swing.JFrame;import cn.hncu.stock.business.factory.StockEbiFactory;import cn.hncu.stock.vo.StockModel;/** * * @author  __USER__ */public class ListPanel extends javax.swing.JPanel {private JFrame mainFrame = null;/** Creates new form ListPanel */public ListPanel(JFrame mainFrame) {this.mainFrame = mainFrame;this.setOpaque(false);initComponents();myInit();}public ListPanel(JFrame mainFrame,List<StockModel> list) {this.mainFrame = mainFrame;this.setOpaque(false);initComponents();stockList.setListData(list.toArray());}private void myInit() {List<StockModel> list = StockEbiFactory.getStockEbi().getAll();stockList.setListData(list.toArray());}/** 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. *///GEN-BEGIN:initComponents// <editor-fold defaultstate="collapsed" desc="Generated Code">private void initComponents() {jLabel1 = new javax.swing.JLabel();jScrollPane1 = new javax.swing.JScrollPane();stockList = new javax.swing.JList();btnQuery = new javax.swing.JButton();setLayout(null);jLabel1.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 24));jLabel1.setForeground(new java.awt.Color(51, 255, 51));jLabel1.setText("\u5e93\u5b58\u5217\u8868");add(jLabel1);jLabel1.setBounds(320, 40, 130, 60);stockList.setModel(new javax.swing.AbstractListModel() {String[] strings = { "" };public int getSize() {return strings.length;}public Object getElementAt(int i) {return strings[i];}});jScrollPane1.setViewportView(stockList);add(jScrollPane1);jScrollPane1.setBounds(170, 120, 410, 260);btnQuery.setText("\u5e93\u5b58\u67e5\u8be2");btnQuery.addActionListener(new java.awt.event.ActionListener() {public void actionPerformed(java.awt.event.ActionEvent evt) {btnQueryActionPerformed(evt);}});add(btnQuery);btnQuery.setBounds(330, 430, 93, 40);}// </editor-fold>//GEN-END:initComponentsprivate void btnQueryActionPerformed(java.awt.event.ActionEvent evt) {mainFrame.setContentPane(new QueryPanel(mainFrame));mainFrame.validate();}//GEN-BEGIN:variables// Variables declaration - do not modifyprivate javax.swing.JButton btnQuery;private javax.swing.JLabel jLabel1;private javax.swing.JScrollPane jScrollPane1;private javax.swing.JList stockList;// End of variables declaration//GEN-END:variables}

查询：

/* * QueryPanel.java * * Created on __DATE__, __TIME__ */package cn.hncu.stock.ui;import java.util.List;import javax.swing.JFrame;import javax.swing.JOptionPane;import cn.hncu.book.business.factory.BookEbiFactory;import cn.hncu.book.vo.BookModel;import cn.hncu.stock.business.factory.StockEbiFactory;import cn.hncu.stock.vo.StockModel;import cn.hncu.stock.vo.StockQueryModel;/** * * @author  __USER__ */public class QueryPanel extends javax.swing.JPanel {private JFrame mainFrame = null;/** Creates new form QueryPanel */public QueryPanel(JFrame mainFrame) {this.mainFrame = mainFrame;this.setOpaque(false);initComponents();myInit();}private void myInit() {List<BookModel> books = BookEbiFactory.getBookEbi().getAll();for (BookModel book : books) {combBook.addItem(book.getName());}}/** 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. *///GEN-BEGIN:initComponents// <editor-fold defaultstate="collapsed" desc="Generated Code">private void initComponents() {jLabel1 = new javax.swing.JLabel();jLabel2 = new javax.swing.JLabel();jLabel3 = new javax.swing.JLabel();jLabel4 = new javax.swing.JLabel();jLabel5 = new javax.swing.JLabel();tfdSumNum2 = new javax.swing.JTextField();tfdUuid = new javax.swing.JTextField();tfdSumNum = new javax.swing.JTextField();combBook = new javax.swing.JComboBox();btnBack = new javax.swing.JButton();btnQuery = new javax.swing.JButton();setLayout(null);jLabel1.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 24));jLabel1.setForeground(new java.awt.Color(102, 255, 102));jLabel1.setText("\u5e93\u5b58\u67e5\u8be2");add(jLabel1);jLabel1.setBounds(310, 30, 120, 80);jLabel2.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));jLabel2.setText("\u5e93\u5b58\u6700\u5927\u91cf:");add(jLabel2);jLabel2.setBounds(360, 260, 100, 40);jLabel3.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));jLabel3.setText("\u5e93\u5b58\u7f16\u53f7:");add(jLabel3);jLabel3.setBounds(110, 150, 80, 30);jLabel4.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));jLabel4.setText("\u56fe\u4e66:");add(jLabel4);jLabel4.setBounds(410, 150, 50, 30);jLabel5.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));jLabel5.setText("\u5e93\u5b58\u6700\u5c0f\u91cf:");add(jLabel5);jLabel5.setBounds(90, 260, 100, 40);add(tfdSumNum2);tfdSumNum2.setBounds(470, 270, 130, 26);add(tfdUuid);tfdUuid.setBounds(210, 150, 120, 26);add(tfdSumNum);tfdSumNum.setBounds(210, 270, 120, 26);combBook.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "请选择" }));add(combBook);combBook.setBounds(470, 150, 160, 26);btnBack.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));btnBack.setText("\u8fd4\u56de");btnBack.addActionListener(new java.awt.event.ActionListener() {public void actionPerformed(java.awt.event.ActionEvent evt) {btnBackActionPerformed(evt);}});add(btnBack);btnBack.setBounds(390, 380, 69, 33);btnQuery.setFont(new java.awt.Font("Microsoft YaHei UI", 0, 18));btnQuery.setText("\u67e5\u8be2");btnQuery.addActionListener(new java.awt.event.ActionListener() {public void actionPerformed(java.awt.event.ActionEvent evt) {btnQueryActionPerformed(evt);}});add(btnQuery);btnQuery.setBounds(220, 380, 69, 33);}// </editor-fold>//GEN-END:initComponentsprivate void btnQueryActionPerformed(java.awt.event.ActionEvent evt) {//1收集参数//库存编号String uuid = tfdUuid.getText();//图书编号String bookUuid = null;if (combBook.getSelectedIndex() > 0) {bookUuid = BookEbiFactory.getBookEbi().getBookByName(combBook.getSelectedItem().toString()).getUuid();}//库存最小量int sumNum = 0;if (tfdSumNum.getText() != null&& tfdSumNum.getText().trim().length() > 0) {try {sumNum = Integer.parseInt(tfdSumNum.getText());if (sumNum < 0) {throw new NumberFormatException();}} catch (NumberFormatException e) {JOptionPane.showMessageDialog(null, "库存最小数量必须输入正整数!");}}//库存最大量int sumNum2 = 0;if (tfdSumNum2.getText() != null&& tfdSumNum2.getText().trim().length() > 0) {try {sumNum2 = Integer.parseInt(tfdSumNum2.getText());if (sumNum2 < 0) {throw new NumberFormatException();}} catch (NumberFormatException e) {JOptionPane.showMessageDialog(null, "库存最大数量必须输入正整数!");}}//2组织参数StockQueryModel sqm = new StockQueryModel();sqm.setUuid(uuid);sqm.setBookUuid(bookUuid);sqm.setSumNum(sumNum);sqm.setSumNum2(sumNum2);//3调用逻辑层List<StockModel> list = StockEbiFactory.getStockEbi().getByCondition(sqm);//4返回到结果界面mainFrame.setContentPane(new ListPanel(mainFrame, list));mainFrame.validate();}private void btnBackActionPerformed(java.awt.event.ActionEvent evt) {mainFrame.setContentPane(new ListPanel(mainFrame));mainFrame.validate();}//GEN-BEGIN:variables// Variables declaration - do not modifyprivate javax.swing.JButton btnBack;private javax.swing.JButton btnQuery;private javax.swing.JComboBox combBook;private javax.swing.JLabel jLabel1;private javax.swing.JLabel jLabel2;private javax.swing.JLabel jLabel3;private javax.swing.JLabel jLabel4;private javax.swing.JLabel jLabel5;private javax.swing.JTextField tfdSumNum;private javax.swing.JTextField tfdSumNum2;private javax.swing.JTextField tfdUuid;// End of variables declaration//GEN-END:variables}