0308作业02

1,注册

package com.kgc.zuoye.zy0308.zy02;

import java.util.Map;
import java.util.Scanner;

//开卡
public class Newcard {
    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        Member member = new Member();
        Map map =(Map)new ObjectInputStreamDemo().ois();

        System.out.println("请输入姓名:");
        member.setName(sc.next());
        System.out.println("请输入账号:");
        member.setCard(sc.next());
        System.out.println("请输入密码:");
        member.setPassword(sc.next());
        System.out.println("注册成功!");
        
        map.put(member.getCard(),member);
        new ObjectOutputStreamDemo().oos(map);
    }
}

2.登录

 1 package com.kgc.zuoye.zy0308.zy02;
 2 
 3 import java.util.Map;
 4 import java.util.Scanner;
 5 
 6 //登录
 7 public class Register {
 8     static Scanner sc=new Scanner(System.in);
 9     public static void main(String[] args){
10 
11         Map<String,Member> map=(Map)new ObjectInputStreamDemo().ois();
12         System.out.println("请输入登录账号:");
13         String card=sc.next();
14         System.out.println("请输入密码:");
15         String password=sc.next();
16 
17         if (map.containsKey(card)){
18             if (map.get(card).getPassword().equals(password)){
19                 System.out.println("登录成功");
20             }else{
21                 System.out.println("密码错误");
22             }
23         }else{
24             System.out.println("账号不存在");
25         }
26     }
27 }

3.会员

 1 package com.kgc.zuoye.zy0308.zy02;
 2 
 3 import java.io.Serializable;
 4 
 5 //会员
 6 public class Member implements Serializable {
 7     private String name;
 8     private String card;
 9     private String password;
10 
11     @Override
12     public String toString() {
13         return "Member{" +
14                 "name='" + name + '\'' +
15                 ", card='" + card + '\'' +
16                 ", password='" + password + '\'' +
17                 '}';
18     }
19 
20     public String getName() {
21         return name;
22     }
23 
24     public void setName(String name) {
25         this.name = name;
26     }
27 
28     public String getCard() {
29         return card;
30     }
31 
32     public void setCard(String card) {
33         this.card = card;
34     }
35 
36     public String getPassword() {
37         return password;
38     }
39 
40     public void setPassword(String password) {
41         this.password = password;
42     }
43 
44     public Member() {
45     }
46 
47     public Member(String name, String card, String password) {
48         this.name = name;
49         this.card = card;
50         this.password = password;
51     }
52 }

4.序列化

 1 package com.kgc.zuoye.zy0308.zy02;
 2 
 3 import java.io.FileOutputStream;
 4 import java.io.IOException;
 5 import java.io.ObjectOutputStream;
 6 import java.util.Map;
 7 
 8 //序列化
 9 public class ObjectOutputStreamDemo {
10 
11     public void oos(Map map){
12         ObjectOutputStream oos=null;
13 
14         try {
15             oos=new ObjectOutputStream(new FileOutputStream("c:\\kkk\\zh.txt"));
16             oos.writeObject(map);
17             oos.flush();
18         } catch (IOException e) {
19             e.printStackTrace();
20         }finally {
21             try {
22                 if (oos!=null){
23                     oos.flush();
24                 }
25             } catch (IOException e) {
26                 e.printStackTrace();
27             }
28         }
29     }
30 }

5.反序列化

package com.kgc.zuoye.zy0308.zy02;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.HashMap;
import java.util.Map;

//反序列化
public class ObjectInputStreamDemo {

    public Map<String,Member> ois(){
        Map<String,Member> map=new HashMap();
        ObjectInputStream ois=null;

        try {
            ois=new ObjectInputStream(new FileInputStream("c:\\kkk\\zh.txt"));
            map=(Map)ois.readObject();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }finally {
            try {
                if (ois!=null){
                    ois.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return map;
    }
}

6.登录运行结果