超市会员管理系统

 1 /**
 2  * @author Administrator
 3  *    用户信息：会员名字、会员密码、会员卡号、会员积分、错误累计、密保答案
 4  */
 5 public class User {
 6     private String name;//会员名字
 7     private String password;//会员密码
 8     private String vipID;//会员卡号
 9     private int integral;//会员积分
10     private int num;//错误累计
11     private String answer;//密保问题
12     
13     public User() {}
14     public User(String name, String password, String vipID, int integral, int num,String answer) {
15         this.name = name;
16         this.password = password;
17         this.vipID = vipID;
18         this.integral = integral;
19         this.num = num;
20         this.answer = answer;
21     }
22     
23     
24     public String getName() {
25         return name;
26     }
27     public void setName(String name) {
28         this.name = name;
29     }
30     public String getPassword() {
31         return password;
32     }
33     public void setPassword(String password) {
34         this.password = password;
35     }
36     public String getVipID() {
37         return vipID;
38     }
39     public void setVipID(String vipID) {
40         this.vipID = vipID;
41     }
42     public int getIntegral() {
43         return integral;
44     }
45     public void setIntegral(int integral) {
46         this.integral = integral;
47     }
48     public int getNum() {
49         return num;
50     }
51     public void setNum(int num) {
52         this.num = num;
53     }
54     public String getAnswer() {
55         return answer;
56     }
57     public void setAnswer(String answer) {
58         this.answer = answer;
59     }
60     
61     
62 }
用户信息：会员名字、会员密码、会员卡号、会员积分、错误累计、密保答案
 1 import java.util.HashMap;
 2 
 3 /**
 4  * @author Administrator
 5  *    初始化用户
 6  *
 7  */
 8 public class UserInit {
 9     //创建Map集合，以会员卡号为键，存储会员信息
10     static HashMap<String,User> users = new HashMap<>();
11     static {
12         //用户信息：String会员名字、String会员密码、String会员卡号、int会员积分、int错误累计、String密保问题
13         User user1 = new User("Verde","123456","56696485",2000,0,"范冰冰");
14         User user2 = new User("xvzvz","123456","98656232",155,0,"迪丽热巴");
15         User user3 = new User("gsgsf","123456","13356485",220,0,"赵丽颖");
16         
17         users.put(user1.getName(), user1);
18         users.put(user2.getName(), user2);
19         users.put(user3.getName(), user3);
20     }
21 }
初始化用户
  1 import java.util.Set;
  2 import java.util.regex.Matcher;
  3 import java.util.regex.Pattern;
  4 
  5 /**
  6  * @author Administrator
  7  *    方法大混战
  8  */
  9 public class Judge {
 10     static Set<String> set = UserInit.users.keySet();
 11     static boolean flag = false;
 12     // 密保判断
 13     public static void Secret(String name) {
 14         System.out.println("您的爱人是谁：");
 15         do {
 16             String answer = View.input.next();
 17             if (UserInit.users.get(name).getAnswer().equals(answer)) {
 18                 flag = false;
 19                 System.out.println("您的账号密码为：" + UserInit.users.get(name).getPassword());
 20             } else {
 21                 flag = true;
 22                 System.out.println("您的密保不正确，请重新输入:");
 23                 UserInit.users.get(name).setNum(UserInit.users.get(name).getNum() + 1);
 24             }
 25         } while (flag);
 26     }
 27 
 28     //登录密码判断
 29     public static boolean isPassword(String password,String name) {
 30         int i = 3;
 31         int num = 0;
 32         do {
 33             num = UserInit.users.get(name).getNum();
 34                 if(UserInit.users.get(name).getPassword().equals(password)) {
 35                     return true;
 36                 }
 37             UserInit.users.get(name).setNum(num+1);
 38             if(num!=2) {
 39                 System.out.println("您输入的密码不正确，请重新输入(您还有"+(i-1)+"次)：");
 40                 i--;
 41                 password = View.input.next();
 42             }else {
 43                 System.out.println("您已输入三次密码错误，此账号已被暂时冻结，请一天后在重试，谢谢！");
 44             }
 45             
 46         }while(num != 2);
 47         return false;
 48     }
 49     
 50     //生成验证码
 51     public static String getCode(int length){
 52         String code = "";
 53         for(int i=0;i<length;i++){
 54             boolean boo = (int)(Math.random()*2)==0;
 55             if(boo){
 56                 code += String.valueOf((int)(Math.random()*10));
 57             }else {
 58                 int temp = (int)(Math.random()*2)==0?65:97;
 59                 char ch = (char)(Math.random()*26+temp);
 60                 code += String.valueOf(ch);
 61             }
 62         }
 63         return code;
 64     }
 65     
 66     //判断是否为纯数字
 67     public static boolean isNumeric(String str) {
 68         Pattern pattern = Pattern.compile("[0-9]*");
 69         return pattern.matcher(str).matches();
 70     }
 71     
 72     //判断是否为纯字母
 73     public static boolean isAlph(String str) {
 74         return str.matches("[a-zA-Z]+");
 75     }
 76     
 77     //判断是否为字母与数字的组合
 78     public static boolean isNumAndAlph(String str) {
 79         return str.matches("^.*[a-zA-Z]+.*$") && str.matches("^.*[0-9]+.*$") && !str.matches("^.*[/^/$/.//,;:'!@#%&/*/|/?/+/(/)/[/]/{/}]+.*$");
 80     }
 81     
 82     //判断是否有特殊字符
 83     public static boolean isSpe(String str) {
 84         return str.matches("^.*[/^/$/.//,;:'!@#%&/*/|/?/+/(/)/[/]/{/}]+.*$");
 85     }
 86     
 87     //判断是否含有中文字符
 88     public static boolean isContainChinese(String password) {
 89         Pattern p = Pattern.compile("[u4e00-u9fa5]");
 90         Matcher m = p.matcher(password);
 91         if (m.find()) {
 92             return true;
 93         }
 94         return false;
 95     }
 96     
 97     //判断是否有空格
 98     public static boolean isBlank(String password) {
 99         int i = password.indexOf(" ");
100         if (i != -1) {
101             return true;
102         }
103         return false;
104     }
105     
106     //注册判断是否合法
107     public static void isNameLegal() {
108         do {
109             System.out.println("请输入注册名：");
110             String name = View.input.next();
111             for(String s:set) {
112                 if(UserInit.users.get(s).equals(name)) {
113                     flag = true;
114                     System.out.println("用户名已存在，请重新输入：");
115                     name = View.input.next();
116                 }else {
117                     if(name.length()>=3&&name.length()<=6&&!isNumeric((String) name.subSequence(0, 1))&&!isSpe(name)) {
118                         isPwdLegal(name);
119                         flag = false;
120                         return;
121                     }else {
122                         flag = true;
123                         System.out.println("您的用户名长度不合法(用户名长度为3~6位之间且首字符不能为数字)：");
124                         name = View.input.next();
125                     }
126                 }
127             }
128         }while(flag);
129         
130     }
131     
132     //注册密码判断是否合法
133     public static void isPwdLegal(String name) {
134         String password;
135         do {
136             System.out.println("请输入密码：");
137             password = View.input.next();
138             System.out.println("请再次确认密码：");
139             String password1 = View.input.next();
140             System.out.println("请输入下方验证码：");
141             String code = getCode(6);
142             System.out.println(code);
143             String userCode = View.input.next();
144             int length = password.length();
145             if (length >= 6 && length <= 16 && !isContainChinese(password) && !isBlank(password)) {
146                 flag = false;
147                 if (password.equals(password1)) {
148                     Level(password);
149                     flag = verify(code,userCode);
150                     String answer = issue();
151                     User user = new User(name,password,vipID(),100,0,answer);
152                     UserInit.users.put(name,user);
153                     System.out.println("恭喜您注册成功！您的会员卡号为："+user.getVipID()+"
新注册会员赠送100积分！");
154                     
155                 } else {
156                     flag = true;
157                     System.out.println("您两次输入的密码不一致,请重新输!：");
158                 }
159             } else {
160                 flag = true;
161                 System.out.println("您的用户名长度不合法(用户名长度为3~6位之间且首字符不能为数字),请重新输入,账号：");
162                 password = View.input.next();
163             }
164         } while (flag);
165     }
166     
167     
168     // 校验验证码
169     public static boolean verify(String code, String userCode) {
170         do {
171             if (code.equalsIgnoreCase(userCode)) {
172                 System.out.println("验证成功！");
173                 return false;
174             } else {
175                 System.out.println("验证码错误，请重新输入：");
176                 code = getCode(6);
177                 System.out.println(code);
178                 userCode = View.input.next();
179             }
180         } while (true);
181     }
182     
183     //随机生成方法
184     public static int getNum(int start, int end) {
185         return (int) (Math.random() * (end - start + 1) + start);
186     }
187     
188     //生成8位会员卡号
189     public static String vipID() {
190         String first = String.valueOf(getNum(0, 9999) + 10000).substring(1);
191         String second = String.valueOf(getNum(0, 9999) + 10000).substring(1);
192         return first+second;
193     }
194     
195     //密保问题
196     public static String issue() {
197         System.out.println("请设置您的密保问题，以便忘记密码找回");
198         System.out.println("你最爱的人是谁？");
199         String answer = View.input.next();
200         return answer;
201     }
202     
203     //修改密码
204     public static boolean changePWd(String name) {
205         System.out.println("请输入旧密码：");
206         String oldpwd = View.input.next();
207         if(isPassword(oldpwd,name)) {
208             do {
209                 System.out.println("请输入新密码：");
210                 String newPwd = View.input.next();
211                 System.out.println("请再次确认新密码：");
212                 String newPwd1 = View.input.next();
213                 if(newPwd.equals(newPwd1)) {
214                     if(UserInit.users.get(name).getPassword().equals(newPwd)) {    
215                         flag = true;
216                         System.out.println("新密码不能与旧密码一致，请重新输入！");
217                     }else {
218                         flag = false;
219                         UserInit.users.get(name).setPassword(newPwd);
220                         System.out.println(UserInit.users.get(name).getPassword());
221                         System.out.println("密码修改成功！请重新登录！");
222                     }
223                 }else {
224                     flag = true;
225                     System.out.println("密码不一致，请重新输入！");
226                 }
227             }while(flag);
228         }
229         return true;
230     }
231     
232     public static void Level(String password) {
233         if(isNumeric(password)) {
234             System.out.println("密码强度：低");
235         }else if(isAlph(password)) {
236             System.out.println("密码强度：低");
237         }else if(isNumAndAlph(password)) {
238             System.out.println("密码强度：中");
239         }else {
240             System.out.println("密码强度：高");
241         }
242         
243     }
244 }
方法大混战
 1 /**
 2  * @author Administrator
 3  *    注册
 4  */
 5 public class Logon {
 6 
 7     public static void Logon() {
 8         Judge.isNameLegal();
 9     }
10 }
注册
  1 /**
  2  * @author Administrator
  3  *    登录操作以及二级界面
  4  */
  5 public class Login {
  6     //会员登录
  7     public static void Login() {
  8         System.out.println("请输入会员名：");
  9         String name = View.input.next();
 10         test:do {
 11             for(String s:Judge.set) {
 12                 if(s.equals(name)) {
 13                     System.out.println("您是否记得密码(y/n)：");
 14                     String choose = View.input.next();
 15                     String password = null;
 16                     if("n".equalsIgnoreCase(choose)) {
 17                         Judge.Secret(name);
 18                         System.out.println("请输入密码：");
 19                         password = View.input.next();
 20                     }else {
 21                         System.out.println("请输入密码：");
 22                         password = View.input.next();
 23                     }
 24                     if(Judge.isPassword(password, name)) {
 25                         second(name);
 26                         break test;
 27                     }else {
 28                         return;
 29                     }
 30                 }
 31             }
 32             System.out.println("您输入的用户名不存在，请重新输入：");
 33             name = View.input.next();
 34         }while(true);
 35     }
 36     
 37     
 38     public static void second(String name) {
 39         boolean flag = false;
 40         System.out.println("尊敬的会员："+name+"欢迎回来！");
 41         do {
 42             System.out.println("1、积分查询	2、积分累计	3、积分兑换	4、修改密码	5、退出系统");
 43             System.out.println("请输入操作选项：");
 44             String choose = View.input.next();
 45             int counts = 0;
 46             counts = UserInit.users.get(name).getIntegral();
 47             switch (choose) {
 48             //查询积分
 49             case "1":
 50                 System.out.println("您当前积分为："+counts);
 51                 break;
 52             //积分累计
 53             case "2":
 54                 System.out.println("请输入消费金额(消费一元换一积分，不足一元不算一积分)：");
 55                 String count = View.input.next();
 56                 do {
 57                     if (Judge.isNumeric(count)) {
 58                         flag = false;
 59                         Integer count1 = Integer.parseInt(count);
 60                         UserInit.users.get(name).setIntegral(counts += count1);
 61                         System.out.println("您当前积分为：" + counts);
 62                     } else {
 63                         flag = true;
 64                         System.out.println("您输入的不是数字，请重新输入：");
 65                         count = View.input.next();
 66                     }
 67                 } while (flag);
 68                 break;
 69             // 积分兑换
 70             case "3":
 71                 System.out.println("您当前积分为："+counts);
 72                 System.out.println("请输入您要兑换的积分数(100积分兑换一元，不足100积分不兑换一元)：");
 73                 String in = View.input.next();
 74                 do {
 75                     if (Judge.isNumeric(in)) {
 76                         Integer count1 = Integer.parseInt(in);
 77                         if(counts >= count1) {
 78                             flag = true;
 79                             int i = (count1/100);
 80                             counts-=count1;
 81                             System.out.println("恭喜您成功兑换"+i+"元，您当前剩余积分为：" + counts);
 82                             System.out.println("您是否需要继续兑换？(y/n):");
 83                             flag = View.input.next().equalsIgnoreCase("y")?true:false;
 84                         }else {
 85                             System.out.println("您的积分余额不足，无法兑换！是否重新兑换?(y/n):");
 86                             flag = View.input.next().equalsIgnoreCase("y")?true:false;
 87                         }
 88                         
 89                     } else {
 90                         flag = true;
 91                         System.out.println("您输入的不是数字，请重新输入：");
 92                         count = View.input.next();
 93                     }
 94                 } while (flag);
 95                 break;
 96             //修改密码
 97             case "4":
 98                 flag = Judge.changePWd(name);
 99                 return;
100             //退出系统
101             case "5":
102                 flag = true;
103                 return;
104             default:
105                 System.out.println("非法操作，请重新输入！");
106                 break;
107             }
108         }while(!flag);
109         
110     }
111 }
登录操作以及二级界面
 1 import java.util.Scanner;
 2 
 3 /**
 4  * @author Administrator
 5  *    管理界面
 6  * 系统菜单分为两级
 7  * 一级菜单：登录、开卡、tuichuxit
 8  * 二级菜单(登录之后)：积分累积、积分兑换、积分查询、修改密码、退出登录
 9  */
10 public class View {
11     static Scanner input = new Scanner(System.in);
12     public static void main(String[] args) {
13         System.out.println("------欢迎光临皇家专属商城------");
14         test:do {
15             System.out.println("1、登录	2、开卡	3、退出系统");
16             String choose = input.next();
17             switch (choose) {
18             case "1":
19                 Login.Login();
20                 break;
21             case "2":
22                 Logon.Logon();
23                 break;
24             case "3":
25                 System.out.println("感谢使用本系统!");
26                 break test;
27             default:
28                 System.out.println("您操作不正常，请重新选择！");
29                 System.out.println("1、登录	2、开卡	3、退出系统");
30                 choose = input.next();
31                 break;
32             }
33         }while(true);
34     }
35 }
管理界面
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原文地址：https://www.cnblogs.com/Dean-0/p/11289936.html