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学员信息管理系统

学员信息管理系统

客户端类

View Code

  1 package jbit.client;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 import java.util.Scanner;
  6 
  7 import jbit.entity.Datas;
  8 import jbit.entity.Serverserver;
  9 import jbit.entity.Student;
 10 import jbit.entity.Teacher;
 11 
 12 public class Socket_test {
 13 
 14     /**
 15      * @param args
 16      */
 17     public static Datas datas = new Datas();
 18     public static Socket_data data = new Socket_data();
 19     public static Scanner scanner = new Scanner(System.in);
 20     public static void main(String[] args) {
 21         
 22         
 23         log();
 24         System.out.println("欢迎使用！ 程序结束！...");
 25         
 26 
 27     }
 28     /**
 29      * 登陆
 30      */
 31     public static void log() {
 32         System.out.println("========================欢迎使用学员信息管理系统========================");
 33         System.out.println("1、登陆");
 34         System.out.println("2、退出");
 35         System.out.println("========================请输入您要选择的操作（1、2)========================");
 36         int len = scanner.nextInt();
 37         if(len == 1) {
 38             System.out.print("请输入用户名：");
 39             String username = scanner.next();
 40             System.out.print("请输入密码:");
 41             String password = scanner.next();    
 42             Teacher teacher = data.Log(username, password);
 43             if(teacher != null) {
 44                 System.out.println("登陆成功！");
 45                 Verification(teacher);
 46             }else {
 47                 System.out.println("用户名或密码错误！登陆失败..");
 48             }
 49             
 50         }
 51     }
 52     
 53     /**
 54      * 管理视图
 55      * @param teacher
 56      */
 57     public static void Verification(Teacher teacher) {
 58         System.out.println("========================学员信息管理系统========================");
 59              System.out.println("1、查看学员信息\n2、查找学员信息\n3、修改学员信息\n4、增加学员信息\n5、删除学员信息\n6、注销");
 60         System.out.println("========================请输入（1、2、3、4）========================");
 61         int Y = scanner.nextInt();
 62         /**
 63          * 1、查看学员信息
 64          * 2、查找学员信息
 65          * 3、修改学员信息
 66          * 4、增加学员信息
 67          * 5、删除学员信息
 68          * 6、注销
 69          */
 70         if (Y == 1) {
 71             List<Student> list = new ArrayList<Student>();
 72             list = data.Seek();
 73     System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 74             for(Student student : list) {
 75                 System.out.println(student.getStuid() + "\t" + student.getStuname() + "\t" + student.getStuage()
 76                         + "\t" + student.getStusex() + "\t" + teacher.getNickname() + "\t" + student.getComments());
 77             }
 78             Verification(teacher);
 79         }else if (Y == 2) {
 80             System.out.print("请输入您想查找的学员编号：");
 81             Student student  = data.Query(scanner.nextInt());
 82     System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 83     System.out.println(student.getStuid() + "\t" + student.getStuname() + "\t" + student.getStuage()
 84                     + "\t" + student.getStusex() + "\t" + teacher.getNickname() + "\t" + student.getComments());
 85             Verification(teacher);
 86         }else if (Y == 3) {
 87             List<Student> list1 = new ArrayList<Student>();
 88             list1 = data.Seek();
 89     System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 90             for(Student student1 : list1) {
 91     System.out.println(student1.getStuid() + "\t" + student1.getStuname() + "\t" + student1.getStuage()+ "\t" + student1.getStusex() + "\t" + teacher.getNickname() + "\t" + student1.getComments());
 92             }
 93             System.out.print("请输入您想修改的学员:");
 94             Student student2 = new Student();
 95             student2.setStuid(scanner.nextInt());
 96             System.out.print("输入您要修改的评语：");
 97             student2.setComments(scanner.next());
 98             datas = (Datas) data.update(student2);
 99             if (datas.getFlag().equals(Serverserver.SYS_OK)) {
100                 System.out.println("修改成功！");
101             }else {
102                    System.out.println("修改失败");
103             }
104             Verification(teacher);
105         }else if (Y == 4) {
106             Student student3 = new Student();
107             System.out.print("请输入学员编号：");
108             student3.setStuid(scanner.nextInt());
109             System.out.print("请输入学员姓名：");
110              student3.setStuname(scanner.next());
111              System.out.print("请输入学员年龄：");
112              student3.setStuage(scanner.nextInt());
113              System.out.print("请输入学员性别：");
114              String sex = scanner.next();
115              if(sex.equals("男") || sex.equals("女")) {
116                   student3.setStusex(sex);
117              }else {
118                  System.out.println("输入错误，重新录入...");
119                  Verification(teacher);
120              }
121              System.out.print("请输入学员评语:");
122              student3.setComments(scanner.next());
123              datas = data.plus(student3);
124                 if (datas.getFlag().equals(Serverserver.SYS_OK)) {
125                     System.out.println("增加成功！");
126                 }else {
127                        System.out.println("增加失败");
128                 }
129                 Verification(teacher);
130              
131         } else if (Y == 5) {
132             List<Student> list2 = new ArrayList<Student>();
133             list2 = data.Seek();
134     System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
135             for(Student student5 : list2) {
136     System.out.println(student5.getStuid() + "\t" + student5.getStuname() + "\t" + student5.getStuage()+ "\t" + student5.getStusex() + "\t" + teacher.getNickname() + "\t" + student5.getComments());
137             }
138             System.out.print("请输入您想删除的学员编号:");
139             Student student4 = new Student();
140             student4.setStuid(scanner.nextInt());
141             datas = data.dell(student4);
142             System.out.println(datas.getFlag());
143             if (datas.getFlag().equals(Serverserver.SYS_OK)) {
144                 System.out.println("删除成功！");
145             }else {
146                    System.out.println("删除失败");
147             }
148             Verification(teacher);
149           } else if (Y == 6) {
150             log();
151             }
152           else {
153             System.out.println("输入错误！ 请重新选择！！！");
154             Verification(teacher);
155           }
156       }
157     }
158

客户端功能类

View Code

  1 package jbit.client;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 import java.util.Scanner;
  6 
  7 import jbit.entity.Datas;
  8 import jbit.entity.Serverserver;
  9 import jbit.entity.Student;
 10 import jbit.entity.Teacher;
 11 
 12 public class Socket_test {
 13 
 14     /**
 15      * @param args
 16      */
 17     public static Datas datas = new Datas();
 18     public static Socket_data data = new Socket_data();
 19     public static Scanner scanner = new Scanner(System.in);
 20     public static void main(String[] args) {
 21         
 22         
 23         log();
 24         System.out.println("欢迎使用！ 程序结束！...");
 25         
 26 
 27     }
 28     /**
 29      * 登陆
 30      */
 31     public static void log() {
 32         System.out.println("========================欢迎使用学员信息管理系统========================");
 33         System.out.println("1、登陆");
 34         System.out.println("2、退出");
 35         System.out.println("========================请输入您要选择的操作（1、2)========================");
 36         int len = scanner.nextInt();
 37         if(len == 1) {
 38             System.out.print("请输入用户名：");
 39             String username = scanner.next();
 40             System.out.print("请输入密码:");
 41             String password = scanner.next();    
 42             Teacher teacher = data.Log(username, password);
 43             if(teacher != null) {
 44                 System.out.println("登陆成功！");
 45                 Verification(teacher);
 46             }else {
 47                 System.out.println("用户名或密码错误！登陆失败..");
 48             }
 49             
 50         }
 51     }
 52     
 53     /**
 54      * 管理视图
 55      * @param teacher
 56      */
 57     public static void Verification(Teacher teacher) {
 58         System.out.println("========================学员信息管理系统========================");
 59         System.out.println("1、查看学员信息\n2、查找学员信息\n3、修改学员信息\n4、增加学员信息\n5、删除学员信息\n6、注销");
 60         System.out.println("========================请输入（1、2、3、4）========================");
 61         int Y = scanner.nextInt();
 62         /**
 63          * 1、查看学员信息
 64          * 2、查找学员信息
 65          * 3、修改学员信息
 66          * 4、增加学员信息
 67          * 5、删除学员信息
 68          * 6、注销
 69          */
 70         if (Y == 1) {
 71             List<Student> list = new ArrayList<Student>();
 72             list = data.Seek();
 73             System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 74             for(Student student : list) {
 75                 System.out.println(student.getStuid() + "\t" + student.getStuname() + "\t" + student.getStuage()
 76                         + "\t" + student.getStusex() + "\t" + teacher.getNickname() + "\t" + student.getComments());
 77             }
 78             Verification(teacher);
 79         }else if (Y == 2) {
 80             System.out.print("请输入您想查找的学员编号：");
 81             Student student  = data.Query(scanner.nextInt());
 82             System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 83             System.out.println(student.getStuid() + "\t" + student.getStuname() + "\t" + student.getStuage()
 84                     + "\t" + student.getStusex() + "\t" + teacher.getNickname() + "\t" + student.getComments());
 85             Verification(teacher);
 86         }else if (Y == 3) {
 87             List<Student> list1 = new ArrayList<Student>();
 88             list1 = data.Seek();
 89             System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
 90             for(Student student1 : list1) {
 91                 System.out.println(student1.getStuid() + "\t" + student1.getStuname() + "\t" + student1.getStuage()
 92                         + "\t" + student1.getStusex() + "\t" + teacher.getNickname() + "\t" + student1.getComments());
 93             }
 94             System.out.print("请输入您想修改的学员:");
 95             Student student2 = new Student();
 96             student2.setStuid(scanner.nextInt());
 97             System.out.print("输入您要修改的评语：");
 98             student2.setComments(scanner.next());
 99             datas = (Datas) data.update(student2);
100             if (datas.getFlag().equals(Serverserver.SYS_OK)) {
101                 System.out.println("修改成功！");
102             }else {
103                    System.out.println("修改失败");
104             }
105             Verification(teacher);
106         }else if (Y == 4) {
107             Student student3 = new Student();
108             System.out.print("请输入学员编号：");
109             student3.setStuid(scanner.nextInt());
110             System.out.print("请输入学员姓名：");
111              student3.setStuname(scanner.next());
112              System.out.print("请输入学员年龄：");
113              student3.setStuage(scanner.nextInt());
114              System.out.print("请输入学员性别：");
115              String sex = scanner.next();
116              if(sex.equals("男") || sex.equals("女")) {
117                   student3.setStusex(sex);
118              }else {
119                  System.out.println("输入错误，重新录入...");
120                  Verification(teacher);
121              }
122              System.out.print("请输入学员评语:");
123              student3.setComments(scanner.next());
124              datas = data.plus(student3);
125                 if (datas.getFlag().equals(Serverserver.SYS_OK)) {
126                     System.out.println("增加成功！");
127                 }else {
128                        System.out.println("增加失败");
129                 }
130                 Verification(teacher);
131              
132         } else if (Y == 5) {
133             List<Student> list2 = new ArrayList<Student>();
134             list2 = data.Seek();
135             System.out.println("学员编号\t" + "学员姓名\t" +"学员年龄\t" + "学员性别\t" + "学员教师\t" + "学员评语\t");
136             for(Student student5 : list2) {
137                 System.out.println(student5.getStuid() + "\t" + student5.getStuname() + "\t" + student5.getStuage()
138                         + "\t" + student5.getStusex() + "\t" + teacher.getNickname() + "\t" + student5.getComments());
139             }
140             System.out.print("请输入您想删除的学员编号:");
141             Student student4 = new Student();
142             student4.setStuid(scanner.nextInt());
143             datas = data.dell(student4);
144             System.out.println(datas.getFlag());
145             if (datas.getFlag().equals(Serverserver.SYS_OK)) {
146                 System.out.println("删除成功！");
147             }else {
148                    System.out.println("删除失败");
149             }
150             Verification(teacher);
151           } else if (Y == 6) {
152             log();
153             }
154           else {
155             System.out.println("输入错误！ 请重新选择！！！");
156             Verification(teacher);
157           }
158       }
159     }
160

类封装传输类

View Code

 1 package jbit.entity;
 2 
 3 import java.io.Serializable;
 4 import java.util.List;
 5 
 6 
 7 
 8 /**
 9  * 序列化传输对象
10  *         在客户端与服务器端之间传递的数据对象
11  * 
12  * @author xu.sun
13  * 
14  */
15 public class Datas implements Serializable {
16     private String flag;// 传递的标识
17     private Teacher teacher;// 老师对象
18     private Student student;// 学员对象
19     private List<Student> studentList;//学员集合
20     public Datas() {
21     }
22     public Student getStudent() {
23         return student;
24     }
25 
26     public void setStudent(Student student) {
27         this.student = student;
28     }
29 
30     public String getFlag() {
31         return flag;
32     }
33 
34     public void setFlag(String flag) {
35         this.flag = flag;
36     }
37 
38     public Teacher getTeacher() {
39         return teacher;
40     }
41 
42     public void setTeacher(Teacher teacher) {
43         this.teacher = teacher;
44     }
45 
46     public List<Student> getStudentList() {
47         return studentList;
48     }
49 
50     public void setStudentList(List<Student> studentList) {
51         this.studentList = studentList;
52     }
53 
54 }

服务器数据和方法类

View Code

  1 package jbit.entity;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 
  6 public class Serverserver {
  7     private static Teacher teacher = null; 
  8     private static List<Student> stulist = null;
  9     public static final String SYS_LOGIN = "LOGIN";      //登陸
 10     public static final String SYS_SEEK = "SEEK";        //查看
 11     public static final String SYS_FIND = "FIND";        //查找
 12     public static final String SYS_UPDATE = "UPDATE";    //修改
 13     public static final String SYS_PLUS = "PLUS";        //增加
 14     public static final String SYS_DELETE = "DELETE";    //刪除
 15     public static final String SYS_OK = "OK";            //ok
 16     public static final String SYS_NO = "NO";            //no
 17     
 18     
 19     /**
 20      * 初始化数据
 21      */
 22     static {
 23         teacher = new Teacher();
 24         stulist = new ArrayList<Student>();
 25         
 26         teacher.setId(1);
 27         teacher.setUsername("root");
 28         teacher.setPassword("toor");
 29         teacher.setNickname("刘老师");
 30         
 31         stulist.add(new Student(1, "何清", 1, 24, "男", "还好！"));
 32         stulist.add(new Student(2, "周东", 1, 23, "男", "还可以！"));
 33         stulist.add(new Student(3, "刘欢", 1, 25, "女", "比较好！"));
 34         stulist.add(new Student(4, "周维", 1, 23, "男", "混日子呀！"));
 35         
 36     }
 37     
 38 
 39 
 40     /**
 41      * 验证登陆
 42      * @param username
 43      * @param password
 44      * @return
 45      */
 46     public static Teacher doLogin(String username,String password){
 47         //验证用户名和密码
 48         if(username.equals(teacher.getUsername())&& password.equals(teacher.getPassword())){
 49             return teacher;
 50         }else{
 51                return null;
 52         }
 53     }
 54     
 55     /**
 56      * 查找学员
 57      * @param len
 58      * @return
 59      */
 60     public static Student Query(int id) {
 61          Student student = stulist.get(id-1);
 62             return student;
 63 
 64     }
 65     
 66     /**
 67      * 查看说有学员信息
 68      * @return
 69      */
 70     public static List<Student> Seek() {
 71         return stulist;
 72     }
 73     
 74     /**
 75      * 修改学员信息
 76      * @return 
 77      * @return 
 78      */
 79     public static void update (Student student) {
 80         
 81         for(int i = 0; i < stulist.size(); i ++) {
 82             if(stulist.get(i).getStuid() == student.getStuid()) {
 83                 stulist.get(i).setComments(student.getComments());
 84             }
 85         }
 86     }
 87    
 88     /**
 89      * 增加学员信息
 90      * @param student
 91      */
 92     public static void plus(Student student) {
 93         stulist.add(student);
 94     }
 95    
 96     /**
 97      * 删除学员信息
 98      * @param student
 99      */
100     public static void dele(Student student) {
101         for(int i = 0; i < stulist.size(); i ++) {
102             if(stulist.get(i).getStuid() == student.getStuid() - 1) {
103                 stulist.remove(student.getStuid() - 1);
104             }
105         }
106     }
107     
108 }

学生类、老师类

View Code

 1 package jbit.entity;
 2 
 3 import java.io.Serializable;
 4 
 5 public class Student implements Serializable {
 6 
 7         private    int stuid;        //学员编号
 8         private String stuname;        //学员姓名
 9         private int teacherid;        //教员编号
10         private int stuage;        //学员年龄
11         private String stusex;        //学员性别
12         private String comments;        //学员评语
13         
14         public Student(int stuid, String stuname, int teacherid, int stuage, 
15                                String stusex, String comments) {
16                           this.stuid = stuid;
17                           this.stuname = stuname;
18                           this.teacherid = teacherid;
19                           this.stuage = stuage;
20                           this.stusex = stusex;
21                           this.comments = comments;
22             
23         }
24         public Student() {
25         }
26         
27         public int getStuid() {
28             return stuid;
29         }
30         public void setStuid(int stuid) {
31             this.stuid = stuid;
32         }
33         public void setStuname(String stuname) {
34             this.stuname = stuname;
35         }
36         public String getStuname() {
37             return stuname;
38         }
39         public int getTeacherid() {
40             return teacherid;
41         }
42         public void setTeacherid(int teacherid) {
43             this.teacherid = teacherid;
44         }
45         public int getStuage() {
46             return stuage;
47         }
48         public void setStuage(int stuage) {
49             this.stuage = stuage;
50         }
51         public String getStusex() {
52             return stusex;
53         }
54         public void setStusex(String stusex) {
55             this.stusex = stusex;
56         }
57         public String getComments() {
58             return comments;
59         }
60         public void setComments(String comments) {
61             this.comments = comments;
62         }
63         
64         
65 
66 
67 
68 }

View Code

 1 package jbit.entity;
 2 
 3 import java.io.Serializable;
 4 
 5 public class Teacher implements Serializable {
 6     
 7     private int id;        //教员编号
 8     private String username;        //登陆用户名
 9     private String password;        //登陆密码
10     private String nickname;        //教员姓名
11     
12     public Teacher() {
13         
14     }
15     
16     public Teacher(String username, String password){
17                  this.username = username;
18                  this.password = password;
19     }
20 
21     public int getId() {
22         return id;
23     }
24     public void setId(int id) {
25         this.id = id;
26     }
27     public String getUsername() {
28         return username;
29     }
30     public void setUsername(String username) {
31         this.username = username;
32     }
33     public String getPassword() {
34         return password;
35     }
36     public void setPassword(String password) {
37         this.password = password;
38     }
39     public String getNickname() {
40         return nickname;
41     }
42     public void setNickname(String nickname) {
43         this.nickname = nickname;
44     }
45     
46     
47 
48 }

服务器类

View Code

 1 package jbit.server;
 2 
 3 import java.io.IOException;
 4 import java.io.ObjectInputStream;
 5 import java.io.ObjectOutputStream;
 6 import java.net.ServerSocket;
 7 import java.net.Socket;
 8 import java.util.ArrayList;
 9 import java.util.List;
10 
11 import jbit.entity.Datas;
12 import jbit.entity.Serverserver;
13 import jbit.entity.Student;
14 import jbit.entity.Teacher;
15 
16 public class Server_test {
17 
18     /**
19      * @param args
20      * @throws IOException 
21      * @throws ClassNotFoundException 
22      */
23     public static void main(String[] args) throws IOException, ClassNotFoundException {
24         ServerSocket ss = null;
25         Socket s = null;
26         ObjectInputStream objin = null;
27         ObjectOutputStream objout = null;
28         try {//创建服务端点
29          ss = new ServerSocket(1314);
30         
31         while(true) {
32                 
33                 //获取客户端对象
34                  s = ss.accept();
35                 
36                 System.out.println(s.getInetAddress().getHostAddress());
37                 
38                 //创建输入流 接受客服端数据
39                  objin = new ObjectInputStream(s.getInputStream());
40                  objout = new ObjectOutputStream(s.getOutputStream());
41                 Serverserver server = new Serverserver();
42                 Datas datas = new Datas();
43                 
44                 datas = (Datas) objin.readObject();
45                 if (datas.getFlag().equals(Serverserver.SYS_LOGIN)) {
46                     Teacher teacher = server.doLogin(datas.getTeacher().getUsername(), datas.getTeacher().getPassword());
47                     objout.writeObject(teacher);
48                     } else if (datas.getFlag().equals(Serverserver.SYS_SEEK)) {
49                                List<Student> list = new ArrayList<Student>();
50                                list = Serverserver.Seek();
51                                objout.writeObject(list);
52                         
53                           } else if(datas.getFlag().equals(Serverserver.SYS_FIND)) {
54                                 Student student = new Student();
55                                 student = server.Query(datas.getStudent().getStuid());
56                                 objout.writeObject(student);
57                             }else if (datas.getFlag().equals(Serverserver.SYS_UPDATE)) {
58                                   Serverserver.update(datas.getStudent());
59                                   datas.setFlag(Serverserver.SYS_OK);
60                                   objout.writeObject(datas);
61                                }else if (datas.getFlag().equals(Serverserver.SYS_PLUS)) {
62                                    Serverserver.plus(datas.getStudent());
63                                    datas.setFlag(Serverserver.SYS_OK);
64                                    objout.writeObject(datas);       
65                                 }else if (datas.getFlag().equals(Serverserver.SYS_DELETE)) {
66                                     Serverserver.dele(datas.getStudent());
67                                     datas.setFlag(Serverserver.SYS_OK);
68                                     objout.writeObject(datas);
69                                 }
70                 
71            }
72         }  finally {
73             // 关闭
74             objin.close();
75             objout.close();
76             s.close();
77             ss.close();
78             System.out.println("服务器终止");
79         }
80     }
81  }

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原文地址：https://www.cnblogs.com/lyayzh/p/3002410.html