图书管理系统（前台加后台管理）

package Library;

import java.io.Serializable;

public class Book implements Serializable{

private int bookId;
private String bookName;
private String auther;
private String pubDate;
private double price;
private int store;
public int getBookId() {
return bookId;
}
public void setBookId(int bookId) {
this.bookId = bookId;
}
public String getBookName() {
return bookName;
}
public void setBookName(String bookName) {
this.bookName = bookName;
}
public String getAuther() {
return auther;
}
public void setAuther(String auther) {
this.auther = auther;
}
public String getPubDate() {
return pubDate;
}
public void setPubDate(String pubDate) {
this.pubDate = pubDate;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public int getStore() {
return store;
}
public void setStore(int store) {
this.store = store;
}
public Book(int bookId, String bookName, String auther, String pubDate,
double price, int store) {
super();
this.bookId = bookId;
this.bookName = bookName;
this.auther = auther;
this.pubDate = pubDate;
this.price = price;
this.store = store;
}
public Book() {
// TODO Auto-generated constructor stub
}

}</strong></span><span style="font-size:18px;font-weight: bold;">
</span>

<pre name="code" class="java">package Library;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.util.ArrayList;import java.util.List;public class BookBiz {private List<Book> bookList =new ArrayList<Book>();public BookBiz(){readFile();if(bookList.size()==0){Book book=new Book(10001,"鬼吹灯","天下霸唱","2006-1-1",34,3);insertBook(book);book=new Book(10002,"魔戒","莫尔斯","2006-3-1",334,300);insertBook(book);book=new Book(10003,"哈利波特","罗琳","2006-1-1",34,3);insertBook(book);book=new Book(10004,"时间机器人","威尔","2006-3-1",90,30);insertBook(book);book=new Book(10005,"宇宙奥秘","霍金","2006-1-1",89,79);insertBook(book);}}public void insertBook(Book book){bookList.add(book);saveFile();}public void deleteBook(int id){for(int i=0;i<bookList.size();i++){Book book =bookList.get(i);if(book.getBookId()==1){bookList.remove(i);saveFile();return;}}}public void updateBook(Book book){for(int i=0;i<bookList.size();i++){Book bk=bookList.get(i);if(bk.getBookId()==book.getBookId()){bk.setAuther(book.getAuther());bk.setBookId(book.getBookId());bk.setPrice(book.getPrice());bk.setStore(book.getStore());bk.setPubDate(book.getPubDate());saveFile();return;}}}public List<Book> selectBooks(){return bookList;}public Book selectBook(int id ){Book book=new Book();for (int i = 0; i < bookList.size(); i++) {book=bookList.get(i);if(book.getBookId()==id){return book;}}return null;}public Book selectBook2(int id,int store ){Book book=new Book();for (int i = 0; i < bookList.size(); i++) {book=bookList.get(i);if(book.getBookId()==id){int st=book.getStore()-store;book.setStore(st);return book;}}return null;}public void readFile(){ObjectInputStream ois=null;FileInputStream fis=null;String name="E:\\Android\\workspace\\MyOopBook\\src\\book.txt";try {fis=new FileInputStream(name);ois=new ObjectInputStream(fis);bookList=(List<Book>) ois.readObject();}catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (ClassNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{try {if(ois!=null){ois.close();}} catch (IOException e) {// TODO: handle exceptione.printStackTrace();}}}public void saveFile(){ObjectOutputStream oos=null;FileOutputStream fos=null;String name="E:\\Android\\workspace\\MyOopBook\\src\\book.txt";try {fos=new FileOutputStream(name);oos=new ObjectOutputStream(fos);oos.writeObject(bookList);} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{try {if(oos!=null){oos.close();}} catch (IOException e) {// TODO: handle exceptione.printStackTrace();}}}}

<pre name="code" class="java">package Library;import java.util.List;import java.util.Scanner;public class BookTest {/*** @param args*/private BookBiz bookbiz=new BookBiz();public static void main(String[] args) {// TODO Auto-generated method stubScanner input=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=input.next();System.out.println("请输入密码");String userPwd=input.next();BookTest bt=new BookTest();if(userName.equals("admin")&&userPwd.equals("123")){System.out.println("登陆成功");bt.showMainView();bt.adminOption();}else if(userName.equals("user")&&userPwd.equals("123")){System.out.println("登陆成功");bt.showuser();bt.adminOptionuser();}else{System.out.println("账号密码有错误");}}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日期\t\t价格\t\t数量\t\t");List<Book> list=bookbiz.selectBooks();for (Book book : list) {System.out.print(book.getBookId()+"\t\t");System.out.print(book.getBookName()+"\t\t");System.out.print(book.getAuther()+"\t\t");System.out.print(book.getPubDate()+"\t");System.out.print(book.getPrice()+"\t\t");System.out.print(book.getStore()+"\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 showuser(){System.out.println("************欢迎光临图书系统*************");System.out.println("书号\t\t书名\t\t作者\t\t日期\t\t价格\t\t数量\t\t");List<Book> list=bookbiz.selectBooks();for (Book book : list) {System.out.print(book.getBookId()+"\t\t");System.out.print(book.getBookName()+"\t\t");System.out.print(book.getAuther()+"\t\t");System.out.print(book.getPubDate()+"\t");System.out.print(book.getPrice()+"\t\t");System.out.print(book.getStore()+"\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 adminOptionuser(){Scanner input=new Scanner(System.in);int  which=input.nextInt();switch(which){case 1:  showuser();adminOptionuser();               //1.查询全部图书break;case 2:  jiezhang();adminOptionuser();                //2结账break;default:System.out.println("谢谢使用");//3退出break;}}public void adminOption(){Scanner input=new Scanner(System.in);int  which=input.nextInt();switch(which){case 1:  tushuruku();      //1.图书入库break;case 2:  tushuchuku();      //2.图书出库break;case 3:          //3查询全部图书{ showMainView();adminOption();}break;case 4:    insertbook();      //4.新增图书break;default:System.out.println("谢谢使用");//5退出break;}}public void tushuruku(){System.out.println("请输入图书信息");System.out.println("请输入图书ID：");Scanner input=new Scanner(System.in);int  id=input.nextInt();Book book=bookbiz.selectBook(id);System.out.println("请输入入库库存数量：");int  store=input.nextInt();store+=book.getStore();book.setStore(store);bookbiz.saveFile();// bookbiz.readFile(); 一开始用第一次用读showMainView();adminOption();}public void tushuchuku(){System.out.println("请输入图书信息");System.out.println("请输入图书ID：");Scanner input=new Scanner(System.in);int  id=input.nextInt();System.out.println("请输入出库库存数量：");int  store=input.nextInt();bookbiz.selectBook2(id,store);bookbiz.saveFile();// bookbiz.readFile(); 一开始用第一次用读showMainView();adminOption();}private void insertbook() {// TODO Auto-generated method stubScanner a=new Scanner(System.in);System.out.println("请输入增加图书信息");System.out.println("请输入图书ID");int m=a.nextInt();System.out.println("请输入书名");String e=a.next();System.out.println("请输入作者");String t=a.next();System.out.println("请输入日期");String y=a.next();System.out.println("请输入价格");double p=a.nextInt();System.out.println("请输入库存");int u=a.nextInt();Book c=new Book(m,e,t,y,p,u);bookbiz.insertBook(c);showMainView();adminOption();}public void jiezhang(){System.out.println("请输入欲购买的图书信息：");System.out.println("请输入图书Id：");Scanner input=new Scanner(System.in);int  id=input.nextInt();System.out.println("请输入购买数量");int  store=input.nextInt();bookbiz.selectBook2(id,store);bookbiz.saveFile();Book book=bookbiz.selectBook(id);System.out.println(book.getBookName()+":"+book.getPrice());System.out.println("数量："+store);System.out.println("小计："+(store*book.getPrice()));showuser();}}<img src="http://img.blog.csdn.net/20160624181943743?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182022345?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182031541?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182045282?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182055907?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182358533?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182440706?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<img src="http://img.blog.csdn.net/20160624182117214?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<span style="font-family: Arial; line-height: 26px;"><strong><span style="font-size:24px;">图书馆用户购买系统优化</span></strong></span>

<span style="font-family: Arial; line-height: 26px;"></span><pre name="code" class="java"><span style="font-size:10px;">package biz;import java.io.Serializable;public class Book implements Serializable {private int bookId;private String bookName;private String author;private String pubDate;private double price;private int   store;public Book(){}public Book(int bookId, String bookName, String author, String pubDate,double price, int store) {super();this.bookId = bookId;this.bookName = bookName;this.author = author;this.pubDate = pubDate;this.price = price;this.store = store;}public int getBookId() {return bookId;}public void setBookId(int bookId) {this.bookId = bookId;}public String getBookName() {return bookName;}public void setBookName(String bookName) {this.bookName = bookName;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}public String getPubDate() {return pubDate;}public void setPubDate(String pubDate) {this.pubDate = pubDate;}public double getPrice() {return price;}public void setPrice(double price) {this.price = price;}public int getStore() {return store;}public void setStore(int store) {this.store = store;}</span><strong style="font-size:24px;"></strong><span style="font-size:10px;">}</span><strong style="font-size:24px;"></strong>

<span style="font-size:10px;"></span><pre name="code" class="java">package biz;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.util.ArrayList;import java.util.List;public class BookBiz {private List<Book> bookList = new ArrayList<Book>();public BookBiz(){readFile();if(bookList.size()==0){Book book = new Book(10001,"鬼吹灯","天下霸唱","2006-01-01",87,100);insertBook(book);book = new Book(10002,"魔戒","莫尔斯","2006-01-01",22,55);insertBook(book);book = new Book(10003,"哈利波特","罗琳","2008-01-01",45,25);insertBook(book);book = new Book(10004,"时间机器","威尔","2009-01-01",66,64);insertBook(book);book = new Book(10005,"宇宙奥秘","霍金","2010-01-01",76,67);insertBook(book);}}public void insertBook(Book book){bookList.add(book);saveFile();}public void deleteBook(int id){for(int i= 0 ; i<bookList.size(); i++){Book book = bookList.get(i);if(book.getBookId() == id){bookList.remove(i);saveFile();return;}}}public void updateBook(Book book){for(int i=0 ; i < bookList.size();i++){Book bk = bookList.get(i);if(bk.getBookId() == book.getBookId()){bk.setAuthor(book.getAuthor());bk.setBookName(book.getBookName());bk.setPrice(book.getPrice());bk.setStore(book.getStore());bk.setPubDate(book.getPubDate());saveFile();return;}}}public List<Book> selectBooks(){return bookList;}public Book selectBook(int id){Book book = new Book();for(int i =0;i<bookList.size();i++){book = bookList.get(i);if(book.getBookId() == id){return book;}}return null;}public void readFile(){ObjectInputStream ois = null;FileInputStream   fis = null;String name = "E:\\Android\\workspace\\MyOopBookTeacher\\src\\biz\\book.txt";try {fis = new FileInputStream(name);ois = new ObjectInputStream(fis);bookList = (List<Book>) ois.readObject();} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (ClassNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally{try {if(ois!=null){ois.close();}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}public void saveFile(){ObjectOutputStream oos = null;FileOutputStream  fos  = null;String name = "E:\\Android\\workspace\\MyOopBookTeacher\\src\\biz\\book.txt";try {fos = new FileOutputStream(name);oos = new ObjectOutputStream(fos);oos.writeObject(bookList);System.out.println("数据保存成功");} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally{try {if(oos!=null){oos.close();}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}<pre name="code" class="java">package biz;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Scanner;import java.util.Set;public class BookTest {private BookBiz bookbiz = new BookBiz();public static void main(String[] args) {Scanner input = 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 = input.next();System.out.println("请输入密码:");String userPwd  = input.next();BookTest bt = new BookTest();if(userName.equals("admin")&&userPwd.equals("123")){System.out.println("登陆成功");bt.showMainView("admin");bt.adminOption();}else if(userName.equals("user")&&userPwd.equals("user")){System.out.println("登陆成功");bt.showMainView("user");bt.userOption();}else{System.out.println("用户或密码");}}public void showMainView(String arg){System.out.println("==================欢迎登录库存管理系统===================");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 = bookbiz.selectBooks();for (Book book : list) {System.out.print(book.getBookId()+"\t\t");System.out.print(book.getBookName()+"\t\t");System.out.print(book.getAuthor()+"\t\t");System.out.print(book.getPubDate()+"\t\t");System.out.print(book.getPrice()+"\t\t");System.out.print(book.getStore()+"\n");}if(arg.equals("admin")){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");}else{System.out.println("请选择进行的操作:1.查询 2.结账 3.退出");}}public void adminOption(){Scanner input = new Scanner(System.in);int which = input.nextInt();switch(which){case  1: //入库inStore();break;case  2: //出库outStore();break;case  3: //查询全部showMainView("admin");break;case  4: //新增图书addBook();break;default: //退出bookbiz.saveFile();break;}}public void inStore(){Scanner input = new Scanner(System.in);System.out.println("请输入图书信息");System.out.println("请输入图书ID:");int bookId = input.nextInt();Book  book = bookbiz.selectBook(bookId);System.out.println("请输入入库的数量");int qty = input.nextInt();qty += book.getStore();book.setStore(qty);bookbiz.saveFile();showMainView("admin");adminOption();}public void outStore(){Scanner input = new Scanner(System.in);System.out.println("请输入图书信息");System.out.println("请输入图书ID:");int bookId = input.nextInt();Book  book = bookbiz.selectBook(bookId);System.out.println("请输入出库的数量");int qty = input.nextInt();book.setStore(book.getStore()-qty);bookbiz.saveFile();showMainView("admin");adminOption();}public void addBook(){Scanner input = new Scanner(System.in);System.out.println("请输入图书信息");System.out.println("请输入图书ID:");int bookId = input.nextInt();System.out.println("请输入书名");String bookName = input.next();System.out.println("请输入作者");String author = input.next();System.out.println("请输入出版时间");String pubDate = input.next();System.out.println("请输入价格");double price = input.nextDouble();System.out.println("请输入数量");int qty = input.nextInt();Book book = new Book();book.setBookId(bookId);book.setBookName(bookName);book.setAuthor(author);book.setPubDate(pubDate);book.setPrice(price);book.setStore(qty);bookbiz.insertBook(book);showMainView("admin");adminOption();}public void userOption(){Scanner input = new Scanner(System.in);int which = input.nextInt();switch(which){case 1:break;case 2:pay();break;default:break;}}public void pay(){Scanner input = new Scanner(System.in);boolean flag = true;double amt = 0;Map map = new HashMap();do{System.out.println("请输入要购买的图书编号:");int bookId = input.nextInt();Book book = bookbiz.selectBook(bookId);System.out.println("请输入购买数量:");int count = input.nextInt();if(book.getStore()<count){System.out.println("购买数量过大,请重新输入");continue;}if(map.containsKey(book)){int temp = Integer.parseInt(map.get(book).toString());map.put(book, count+temp);}else{map.put(book, count);}System.out.println(book.getBookName()+":"+book.getPrice());System.out.println(count);System.out.println("小计:"+(count*book.getPrice()));amt += count*book.getPrice();System.out.println("是否继续购买(y/n)");String str = input.next();if(!str.equals("y")){flag = false;}}while(flag);System.out.println("总计:"+amt);System.out.println("支付:");double pay = input.nextDouble();Set set = map.keySet();Iterator it = set.iterator();while(it.hasNext()){System.out.println("AAAAA");Book book = (Book) it.next();book = bookbiz.selectBook(book.getBookId());int count = Integer.parseInt(map.get(book).toString());book.setStore(book.getStore()-count);bookbiz.saveFile();}System.out.println("找零:"+(pay-amt));showMainView("user");userOption();}}

<img src="http://img.blog.csdn.net/20160624183243194?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" /><img src="http://img.blog.csdn.net/20160624183251152?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />