基于MVC的图书管理系统

16-06-22 来源：[db:作者]

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用Java编写一个图书管理系统：

需求：能列表化显示图书信息：并且能够完成图书出入库、显示全部、增加图书、客户能够购买图书;

一、编写图书类：图书属性有(书的ID、书名、作者、发布日期、书的价格、书的库存)即MVC中的模型(model)。

package BookManager;

import java.io.Serializable;

/*图书管理系统
 * 第一层：图书类、模型（model）
 */
public class Book implements Serializable{
	private int BookNo;
    private String BookName;
    private String BookWriter;
    private String BookPubDate;
    private double BookPrice;
    private int BookCount;
	public Book() {
		super();
	}
	public Book(int bookNo, String bookName, String bookWriter,
			String bookPubDate, double bookPrice, int bookCount) {
		super();
		this.BookNo = bookNo;
		this.BookName = bookName;
		this.BookWriter = bookWriter;
		this.BookPubDate = bookPubDate;
		this.BookPrice = bookPrice;
		this.BookCount = bookCount;
	}

    public int getBookNo() {
		return BookNo;
	}
	public void setBookNo(int bookNo) {
		BookNo = bookNo;
	}
	public String getBookName() {
		return BookName;
	}
	public void setBookName(String bookName) {
		BookName = bookName;
	}
	public String getBookWriter() {
		return BookWriter;
	}
	public void setBookWriter(String bookWriter) {
		BookWriter = bookWriter;
	}
	public String getBookPubDate() {
		return BookPubDate;
	}
	public void setBookPubDate(String bookPubDate) {
		BookPubDate = bookPubDate;
	}
	public double getBookPrice() {
		return BookPrice;
	}
	public void setBookPrice(double bookPrice) {
		BookPrice = bookPrice;
	}
	public int getBookCount() {
		return BookCount;
	}
	public void setBookCount(int bookCount) {
		BookCount = bookCount;
	}


}

二、对图书进行各种操作，MVC中的控制器(controller).

package BookManager;

import java.io.*;
import java.util.*;
/*
 * 第二层：对Book的操作
 */
public class BookZip {
	private List bookList = new ArrayList();

	public BookZip() {
		super();
		readFile();
		if (bookList.size() == 0) {    //对图书进行初始化，没有图书，则添加图书
		  Book book = new Book(10001, "斗破苍穹", "天蚕土豆", "2008-01-01", 120.5, 5555);
          insertBook(book);
          book = new Book(10002, "魔戒", "莫尔斯", "2006-01-01", 220.5, 5555);
          insertBook(book);
          book = new Book(10003, "哈利波特", "罗琳", "2009-08-01", 20.5, 2365);
          insertBook(book);
          book = new Book(10004, "时间机器", "威尔", "2002-01-05", 170.5, 5624);
          insertBook(book);
          book = new Book(10005, "斗罗大陆", "唐家三少", "2003-01-01", 80.5, 8762);
          insertBook(book);
		}
	}

	public void insertBook(Book book) {  //添加图书
		bookList.add(book);
		saveFile();
	}

	public void deleteBook(int id) {   //删除图书

		for (int i = 0; i < bookList.size(); i++) {
			Book book = bookList.get(i);
			if (book.getBookNo() == id) {
				bookList.remove(i);
				saveFile();
				return;
			}
		}
	}

	public void upDataBook(Book book) {   //更新图书
		for (int i = 0; i < bookList.size(); i++) {
			Book book1 = bookList.get(i);
			if (book1.getBookNo() == book.getBookNo()) {

				book1.setBookWriter(book.getBookWriter());
				book1.setBookName(book.getBookName());
				book1.setBookPrice(book.getBookPrice());
				book1.setBookCount(book.getBookCount());
				book1.setBookPubDate(book.getBookPubDate());
                
				saveFile();
				return;
			}
		}
	}

	public List selectBooks() {   //返回图书列表
		return bookList;
	}

	public Book selectBook(int id) {    //用书的ID找书名

		Book book = new Book();
		for (int i = 0; i < bookList.size(); i++) {
			book = bookList.get(i);
			if (book.getBookNo() == id) {
				return book;
			}
		}
		return null;
	}

	public void readFile() {       //读取文件
		FileInputStream fis = null;
		ObjectInputStream ois = null;
		String name = "G:/java/com.jerel.0619/src/Bookcopy.txt"; //读取文件路径

		try {
			fis = new FileInputStream(name);
			ois = new ObjectInputStream(fis);
			bookList = (List) ois.readObject();
		} catch (FileNotFoundException e) {
			e.printStackTrace();	
		} catch (IOException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} finally {
			try {
				if (ois != null)
					ois.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
 
	public void saveFile() {         //存放文件
		ObjectOutputStream oos = null;
		FileOutputStream fos = null;
		String name = "G:/java/com.jerel.0619/src/Bookcopy.txt";          //存放文件路径（与读取一致）

		try {
			fos = new FileOutputStream(name);
			oos = new ObjectOutputStream(fos);
			oos.writeObject(bookList);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (oos != null)
					oos.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}

	}
}

三、管理员、用户登陆界面MVC中的View(视图)

（一）、管理员

package BookManager;

import java.util.List;
import java.util.Scanner;

/*
 * 第三层：管理员测试Book类
 */
public class BookTest {

	private BookZip bookzip = new BookZip();  //new 一个图书管理类对象;
	private static Scanner sc;
	private static int which;

	public static void main(String[] args) {
		sc = new Scanner(System.in);
		System.out.println("欢迎使用图书书店!");
		System.out.println("请输入用户名：");
		String userName = sc.next();
		System.out.println("请输入密码：");
		String userpwd = sc.next();

		BookTest bookTest = new BookTest();
		if (userName.equals("allen") && userpwd.equals("123")) {
			System.out.println("成功");
			bookTest.showMainView();
			while(which !=5 ){
			bookTest.adminOption();
			}
		} else {
			System.out.println("密码账号错误");
		}

	}

	public void showMainView() {
		System.out.println("===================================" +
			  "欢迎登陆库存管理系统===================================");
		System.out.println("书号\t\t书名\t\t作者\t\t发布日期\t\t价格\t\t库存");
		List list = bookzip.selectBooks();
		for (Book book : list) {
			System.out.print(book.getBookNo() + "\t\t");
			System.out.print(book.getBookName() + "\t\t");
			System.out.print(book.getBookWriter() + "\t\t");
			System.out.print(book.getBookPubDate() + "\t");
			System.out.print(book.getBookPrice() + "\t\t");
			System.out.print(book.getBookCount() + "\n");
		}
		System.out.println("请选择进行的操作:1.图书入库  2.图书出库  3.查询全部图书  4.新增图书5.退出");
	}
	public void adminOption(){
		
		int which = sc.nextInt();
		switch (which) {
		case 1://入库
			addCount();
			break;
		case 2://出库
			outCount();
			break;
		case 3://查询全部
			showMainView();
			break;
		case 4://新增图书
			addBook();
			break;

		default://退出a
			bookzip.saveFile();
			break;
		}
	}
	public void outCount(){
	    System.out.println("选择操作的图书书号");
	    int bookId = sc.nextInt();
	    Book book = bookzip.selectBook(bookId);
	    System.out.println("输入出库的数量");
	    int num = sc.nextInt();
	    book.setBookCount(book.getBookCount()-num);
	    bookzip.saveFile();
		showMainView();
		adminOption();
	}
	public void  addCount(){
		System.out.println("请选择要操作的图书书号");
		int  id = sc.nextInt();
		List list = bookzip.selectBooks();
		for (int i = 0; i < list.size(); i++) {
			Book book = list.get(i);
			if (book.getBookNo() == id){
				System.out.println("选择操作的数量");
				int a = sc.nextInt();
				book.setBookCount(book.getBookCount()+a);
                bookzip.saveFile();
        		showMainView();
        		adminOption();
			} 
		}System.out.println("输入错误!");
	}
	public void addBook(){
		System.out.println("请依次录入：");
		System.out.println("书的编号");
		int a = sc.nextInt();
		System.out.println("书的名字：");
		String b = sc.next();
		System.out.println("书的作者");
		String c = sc.next();
		System.out.println("书的发布日期");
		String d = sc.next();
		System.out.println("书的价格");
		double e = sc.nextDouble();
		System.out.println("书的库存");
		int f = sc.nextInt();
//		Book book = new Book(a,b,c,d,e,f);
		Book book = new Book();
		book.setBookNo(a);
		book.setBookName(b);
		book.setBookWriter(c);
		book.setBookPubDate(d);
		book.setBookPrice(e);
		book.setBookCount(f);
		bookzip.insertBook(book);
		showMainView();
		adminOption();
	}
}

（二）、用户

package BookManager; //用户登录界面 import java.util.*; public class BookUser { private BookZip bookzip = new BookZip();// new 一个对象; private static Scanner sc; private static int which; public static void main(String[] args) { sc = new Scanner(System.in); System.out.println("欢迎使用图书书店!"); System.out.println("请输入用户名："); String userName = sc.next(); System.out.println("请输入密码："); String userpwd = sc.next(); BookUser bookUser = new BookUser(); if (userName.equals("user") && userpwd.equals("12345")) { System.out.println("成功"); bookUser.showMainView(); while (which != 3) { bookUser.adminOption(); } } else { System.out.println("密码账号错误"); } } public void showMainView() { System.out.println("===================================" + "欢迎登陆库存管理系统==================================="); System.out.println("书号\t\t书名\t\t作者\t\t发布日期\t\t价格\t\t库存"); List<book> list = bookzip.selectBooks(); for (Book book : list) { System.out.print(book.getBookNo() + "\t\t"); System.out.print(book.getBookName() + "\t\t"); System.out.print(book.getBookWriter() + "\t\t"); System.out.print(book.getBookPubDate() + "\t"); System.out.print(book.getBookPrice() + "\t\t"); System.out.print(book.getBookCount() + "\n"); } System.out.println("请选择进行的操作:1.查询全部图书 2.结账 3.退出"); } public void adminOption() { int which = sc.nextInt(); switch (which) { case 1:// 查询全部图书 showMainView(); break; case 2:// 结账 BuyBooks(); break; default: // 退出 bookzip.saveFile(); break; } } public void BuyBooks() { Book book = null; double total = 0.0, amt = 0.0; Map<book, object=""> map = new HashMap<book, object="">();// while (true) { System.out.println("选择购买图书编号ID:"); int bookId = sc.nextInt(); book = bookzip.selectBook(bookId); System.out.println("选择购买数量:"); int count = sc.nextInt(); if (book.getBookCount() < count) { System.out.println("购买数量太大，请重新输入"); continue; } map.put(book, count);// System.out.println(book.getBookName() + ":" + book.getBookPrice()); total = book.getBookPrice() * count; System.out.println("小记:" + total); amt += total; // book.setBookCount(book.getBookCount() - count); //(95-101行代码与 68行和79行代码)和此代码相同 System.out.println("是否继续？是/y 否/n"); String a = sc.next(); if (a.equals("n")) break; } System.out.println("总计:" + amt); System.out.println("支付:"); double pay = sc.nextDouble(); System.out.println("找零:" + (pay - amt)); Set<book> set = map.keySet();//95-101行代码与 68行和79行代码共同 Iterator<book> it = set.iterator(); while (it.hasNext()) { Book book1 = (Book) it.next(); int count = Integer.parseInt(map.get(book1).toString()); book1.setBookCount(book1.getBookCount() - count); } bookzip.saveFile(); showMainView(); adminOption(); } } </book></book></book,></book,></book>

四、部分截图：

(一)、管理员(部分功能未展示)

(二)、用户(结账)

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