商品管理系统

package com.biz;/* * 请输入商品编号：1001         请输入商品名称：ipad3         请输入商品价格：3300         请输入商品数量：10 */public class Goods implements java.io.Serializable{/** *  */private static final long serialVersionUID = 1L;int id;String name;int price;int number;public Goods() {super();// TODO Auto-generated constructor stub}public Goods(int id, String name, int price, int number) {super();this.id = id;this.name = name;this.price = price;this.number = number;}public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getPrice() {return price;}public void setPrice(int price) {this.price = price;}public int getNumber() {return number;}public void setNumber(int number) {this.number = number;}}package com.io;import java.io.*;import java.util.Iterator;import java.util.List;import com.biz.Goods;public class InputFile {FileInputStream in=null;ObjectInputStream inn=null;public void read(){try { in = new FileInputStream("D:\\data.txt");inn = new ObjectInputStream(in);List<?> list = (List<?>)inn.readObject();Goods go;Iterator<?> it = list.iterator();while(it.hasNext()){go = (Goods) it.next();System.out.println("编号名称价格数量");System.out.println(go.getId()+""+go.getName()+""+go.getPrice()+""+go.getNumber());}} 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 {inn.close();in.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}package com.io;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectOutputStream;import java.util.List;public class OutputFile {FileOutputStream in =null;ObjectOutputStream out = null;public void write(List<?> list){try {in = new FileOutputStream("D:\\data.txt");out = new ObjectOutputStream(in);out.writeObject(list);out.flush();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{try {out.close();in.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}package com.view;import java.util.ArrayList;import java.util.List;import java.util.Scanner;import com.biz.Goods;import com.io.*;public class TextView {String s;List<Goods> list = new ArrayList<Goods>();public void login(){while(true){System.out.println("|----------------------------|");System.out.println("|-------欢迎进入商品信息管理系统------|");System.out.println("|----------------------------|");System.out.println("|---1.添加商品      2.查询商品       3.退出--|");System.out.println("|----------------------------|");System.out.println("请选择：");Scanner sc = new Scanner(System.in);s=sc.next();System.out.println("|-----------------------------|");System.out.println("您选择的是："+s);System.out.println("|-----------------------------|");int i;i=Integer.parseInt(s);if(i==1){update();}else if(i==2){check();}else if(i==3){break;}}System.out.println("退出成功！！！");exit();}public void update(){Goods go = new Goods();Scanner sc = new Scanner(System.in);System.out.println("请输入商品的编号：");int i;i=Integer.parseInt(sc.next());go.setId(i);System.out.println("请输入商品的名称：");go.setName(sc.next());System.out.println("请输入商品的价格：");i=Integer.parseInt(sc.next());go.setPrice(i);System.out.println("请输入商品的数量：");i=Integer.parseInt(sc.next());go.setNumber(i);System.out.println("是否保存（y/n）？");String s;s=sc.next();if(s.equals("y")||s.equals("Y")){list.add(go);new OutputFile().write(list);System.out.println("保存成功！！！");}else{System.out.println("商品未保存！！！");}}public void check(){new InputFile().read();}public void exit(){System.exit(0);}}package com.view;public class Main {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubnew TextView().login();}}