|--需求说明
1、自动注册一堆会员账号并保存为本地文件
2、关闭程序，载入本地文件，可以用注册出来的会员账号及密码登录
|--实现方式
1、使用随机的方式生成会员信息
2、使用ObjectOutputStream和ObjectInputStream 对会员信息进行保存和读取
|--代码内容
1 package cn.save;
2
3 import java.io.Serializable;
4
5 /**
6 * @auther:：9527
7 * @Description: 用户类
8 * @program: shi_yong
9 * @create: 2019-08-02 15:45
10 */
11 public class User implements Serializable {
12 private String name;
13 private String cardId;
14 private String phoneNum;
15 private String passWord;
16
17 public User() {
18 }
19
20 public User(String name, String cardId, String phoneNum, String passWord) {
21 this.name = name;
22 this.cardId = cardId;
23 this.phoneNum = phoneNum;
24 this.passWord = passWord;
25 }
26
27 public String getName() {
28 return name;
29 }
30
31 public void setName(String name) {
32 this.name = name;
33 }
34
35 public String getCardId() {
36 return cardId;
37 }
38
39 public void setCardId(String cardId) {
40 this.cardId = cardId;
41 }
42
43 public String getPhoneNum() {
44 return phoneNum;
45 }
46
47 public void setPhoneNum(String phoneNum) {
48 this.phoneNum = phoneNum;
49 }
50
51 public String getPassWord() {
52 return passWord;
53 }
54
55 public void setPassWord(String passWord) {
56 this.passWord = passWord;
57 }
58
59 @Override
60 public String toString() {
61 return "User{" +
62 "name=‘" + name + ‘\‘‘ +
63 ", cardId=‘" + cardId + ‘\‘‘ +
64 ", phoneNum=‘" + phoneNum + ‘\‘‘ +
65 ", passWord=‘" + passWord + ‘\‘‘ +
66 ‘}‘;
67 }
68 }
User类--初始化会员信息
1 package cn.save;
2
3 import com.sun.xml.internal.txw2.output.DumpSerializer;
4
5 import java.util.ArrayList;
6 import java.util.HashMap;
7 import java.util.Map;
8 import java.util.Random;
9
10 /**
11 * @auther:：9527
12 * @Description:
13 * @program: shi_yong
14 * @create: 2019-08-02 15:48
15 */
16 public class Meth {
17
18 //创建HashMap的方法
19 public HashMap<String, User> getMap(String name, String cardId, String phoneNum, String passWord) {
20 HashMap<String, User> map = new HashMap<>();
21 User user = new User();
22 user.setName(name);
23 user.setCardId(cardId);
24 user.setPhoneNum(phoneNum);
25 user.setPassWord(passWord);
26
27 map.put(user.getName(),user);
28
29
30
31 return map;
32 }
33
34 //批量创建会员卡，创建的会员信息是传参加1
35 public HashMap<String, User> getMap(int num){
36 HashMap<String, User> map = new HashMap<>();
37 //恒定创建一个tom的会员信息，以便记忆
38 User us1 = new User("tom","cp936","15393571586","95273");
39 map.put(us1.getName(),us1);
40 for (int i = 0; i < num; i++) {
41 //String name, String cardId, String phoneNum, String passWord
42 User user = new User();
43 user.setName(name());
44 user.setCardId(cardId());
45 user.setPhoneNum(phoneNum());
46 user.setPassWord(getPWD());
47 map.put(user.getName(),user);
48 }
49
50 return map;
51 }
52
53
54
55 //随机生成6位密码的方法
56 public String getPWD() {
57 String code = "";
58 for (int i = 0; i < 6; i++) {
59 //设定布尔值，根据布尔值确定本轮使用数字还是使用字母
60 boolean boo = ((int) (Math.random() * 2)) == 0 ? true : false;
61 if (boo) {
62 //如果布尔为真，则本次密码加一个数字
63 code += (int) (Math.random() * 10);
64 } else {
65 int temp = ((int) (Math.random() * 2)) == 0 ? 65 : 97;
66 code += (char) ((int) (Math.random() * 26) + temp);
67 }
68 }
69 return code;
70 }
71
72 //随机创建帐号的方法
73 public String cardId() {
74 Random random = new Random();
75 String cardId = String.valueOf(random.nextInt(99999999));
76 return cardId;
77 }
78
79 //生成随机电话号码的方法
80 public String phoneNum() {
81 //给予真实的初始号段，号段是在百度上面查找的真实号段
82 String[] start = {"133", "149", "153", "173", "177",
83 "180", "181", "189", "199", "130", "131", "132",
84 "145", "155", "156", "166", "171", "175", "176", "185", "186", "166", "134", "135",
85 "136", "137", "138", "139", "147", "150", "151", "152", "157", "158", "159", "172",
86 "178", "182", "183", "184", "187", "188", "198", "170", "171"};
87 //随机出一个号段
88 String fistNum = start[(int) (Math.random() * start.length)];
89 //随机出一个尾号
90 String lastNum = "";
91 for (int i = 0; i < 8; i++) {
92 lastNum += (int) (Math.random() * 10);
93 }
94 //手机号就是手机号段+尾号
95 String phoneNum = fistNum + lastNum;
96 return phoneNum;
97 }
98
99 //创建用户名的方法
100 public String name() {
101 String code = "";
102 for (int i = 0; i < 4; i++) {
103 code += (char) ((int) (Math.random() * 26) + 97);
104 }
105 return code;
106 }
107
108
109
110
111
112 }
方法类--创建HashMap、随机创建会员信息的所有方法
1 package cn.save;
2
3 import java.io.FileNotFoundException;
4 import java.io.FileOutputStream;
5 import java.io.IOException;
6 import java.io.ObjectOutputStream;
7 import java.util.HashMap;
8
9 /**
10 * @auther:：9527
11 * @Description: 保存批量注册的信息的程序入口
12 * @program: shi_yong
13 * @create: 2019-08-02 17:46
14 */
15 public class Save {
16 public static void main(String[] args) {
17 HashMap<String, User> map = new HashMap<>();
18 Meth meth = new Meth();
19 //随机创建10+1组帐号密码
20 map = meth.getMap(10);
21
22 //创建对象输出的方式
23 ObjectOutputStream oos = null;
24 FileOutputStream fos = null;
25
26 try {
27 fos = new FileOutputStream("d:/userinfo");
28 oos = new ObjectOutputStream(fos);
29 oos.writeObject(map);
30 oos.flush();
31 } catch (FileNotFoundException e) {
32 e.printStackTrace();
33 } catch (IOException e) {
34 e.printStackTrace();
35 } finally {
36 try {
37 oos.close();
38 fos.close();
39 System.out.println("文件已保存并关闭相应进程");
40 } catch (IOException e) {
41 e.printStackTrace();
42 }
43 }
44 }
45 }
使用ObjectOutputStream保存信息
1 package cn.save;
2
3 import java.io.FileInputStream;
4 import java.io.FileNotFoundException;
5 import java.io.IOException;
6 import java.io.ObjectInputStream;
7 import java.util.HashMap;
8 import java.util.Scanner;
9
10 /**
11 * @auther:：9527
12 * @Description:
13 * @program: shi_yong
14 * @create: 2019-08-02 15:45
15 */
16 public class Register {
17 public static void main(String[] args) {
18 Scanner scanner = new Scanner(System.in);
19 ObjectInputStream ois = null;
20 FileInputStream fis = null;
21 HashMap<String,User> map = null;
22
23 try {
24 fis = new FileInputStream("d:/userinfo");
25 ois = new ObjectInputStream(fis);
26
27 map = (HashMap<String, User>)ois.readObject();
28
29 System.out.println("请输入会员名");
30 String name = scanner.next();
31 System.out.println("请输入你的密码");
32 String pwd = scanner.next();
33
34 if (map.containsKey(name)){
35 if (map.get(name).getPassWord().equals(pwd)){
36 System.out.println("登录成功，你的会员信息如下： \n卡号"+map.get(name).getCardId()
37 +"\n电话号码："+map.get(name).getPhoneNum());
38
39
40 System.out.println("登录成功，你的会员信息如下： \n卡号"+map.get(name).toString());
41 }
42 }else {
43 System.out.println("没有找到这个会员名");
44 }
45
46
47
48
49 } catch (FileNotFoundException e) {
50 e.printStackTrace();
51 } catch (IOException e) {
52 e.printStackTrace();
53 } catch (ClassNotFoundException e) {
54 e.printStackTrace();
55 }
56
57 }
58 }
登录类---用于载入数据并登录
|--运行结果
原文地址：https://www.cnblogs.com/twuxian/p/11290762.html
时间： 2024-11-05 11:41:41