要求

请使用序列化和反序列化机制，完成学生信息管理系统。

系统打开时显示以下信息：欢迎使用学生信息管理系统，请认真阅读以下使用说明：请输入不同的功能编号来选择不同的功能：[1]查看学生列表[2]保存学生[3]删除学生[4]查看某个学生详细信息--------------------------------------------------------------------学生信息列表展示学号 姓名 性别------------------------------------1 zhangsan 男2 lisi 女.....--------------------------------------------------------------------查看某个学生详细信息学号：1姓名：张三生日：1990-10-10性别：男邮箱：zhangsan@123.com---------------------------------------------------------------------删除学生时，需要让用户继续输入删除的学生编号，根据编号删除学生。注意：请使用序列化和反序列化，以保证关闭之后，学生数据不丢失。学生数据要存储到文件中。

代码

import java.io.*; import java.util.HashMap; import java.util.Map; import java.util.Scanner; import java.util.Set;public class StuInfoMagSys {//查看学生列表private void showStu(){System.out.println("-------------------------------");System.out.println("学生信息列表展示：");System.out.println("学号\t姓名\t性别");Map<String, Student> map = readStuMap();Set<Map.Entry<String, Student>> set = map.entrySet();for (Map.Entry<String, Student> me : set){System.out.println(me.getKey()+ "\t" +me.getValue().getName()+ "\t" + ((me.getValue().isSex() == true) ? "男" : "女"));}System.out.println("------------------------------");}//保存学生private void saveStu(){Scanner scanner = new Scanner(System.in);Student student = new Student();System.out.print("请输入学生学号：");student.setNo(scanner.next());System.out.print("请输入学生姓名：");student.setName(scanner.next());Birthday bir = new Birthday();System.out.print("请输入学生出生年份：");bir.setYear(scanner.nextInt());System.out.print("请输入学生出生月份：");bir.setMonth(scanner.nextInt());System.out.print("请输入学生出生日：");bir.setDay(scanner.nextInt());student.setBir(bir);System.out.print("请输入学生性别：");String sex = scanner.next();student.setSex(sex.equals("男") ? true : false);System.out.print("请输入学生邮箱：");student.setEmail(scanner.next());Map<String, Student> map = readStuMap();map.put(student.getNo(), student);saveMap(map);}//读取学生map集合private Map<String, Student> readStuMap(){ObjectInputStream ois = null;try {ois = new ObjectInputStream(new FileInputStream("day32homework//src//StuInfo"));Map<String, Student> map = (Map<String, Student>) ois.readObject();return map;} catch (FileNotFoundException exception) {exception.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (ClassNotFoundException e) {e.printStackTrace();} finally {if (ois != null) {try {ois.close();} catch (IOException e) {e.printStackTrace();}}}return null;}//存储map集合至StuInfoprivate void saveMap(Map<String, Student> map){ObjectOutputStream oos = null;try {oos = new ObjectOutputStream(new FileOutputStream("day32homework//src//StuInfo"));oos.writeObject(map);oos.flush();} catch (IOException e) {e.printStackTrace();}finally {if (oos != null) {try {oos.close();} catch (IOException e) {e.printStackTrace();}}}}//删除学生private void deleteStuInfo(){//用户输入学生学号Scanner s = new Scanner(System.in);System.out.print("请输入要删除学生学号：");String no = s.next();//删除学生信息Map<String, Student> map = readStuMap();map.remove(no);//操作后将集合重新存储saveMap(map);}//查看学生详细信息private void detailedStuInfo(){//用户输入学生学号Scanner s = new Scanner(System.in);System.out.print("请输入学生学号：");String no = s.next();Set<Map.Entry<String, Student>> set = readStuMap().entrySet();//true:存在该学号 false: 不存在该学号boolean flag = false;for (Map.Entry<String, Student> me : set){if (no.equals(me.getKey())){System.out.println( me.getValue());flag = true;}}if (flag == false){System.out.println("学号不存在！");}}/*** 打印系统操作界面* 接受用户下一步操作*/public void sysInterface(){while (true){BufferedReader br = null;try {br = new BufferedReader(new FileReader("day32homework//src//StuInfoMagSys"));String readLine = "";while ((readLine = br.readLine()) != null){System.out.println(readLine);}} catch (FileNotFoundException exception) {exception.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if (br != null) {try {br.close();} catch (IOException e) {e.printStackTrace();}}}//用户输入Scanner s = new Scanner(System.in);System.out.print("请输入编号：");int choice = s.nextInt();if (choice == 1){//查看学生列表showStu();System.out.print("输入任意字符，回车键后继续操作：");s.next();}else if (choice == 2){//保存学生saveStu();System.out.print("输入任意字符，回车键后继续操作：");s.next();}else if (choice == 3){//删除学生deleteStuInfo();System.out.print("输入任意字符，回车键后继续操作：");s.next();}else if (choice == 4){//查看某个学生详细信息detailedStuInfo();System.out.print("输入任意字符，回车键后继续操作：");s.next();}else if (choice == 5){System.exit(0);}}} } import java.io.Serial; import java.io.Serializable;public class Student implements Serializable {@Serialprivate static final long serialVersionUID = -2835838366069385845L;private String no;private String name;private Birthday bir;/**性别* false: 女* true: 男*/private boolean sex;private String email;public Student() {}public Student(String no, String name, Birthday bir, boolean sex, String email) {this.no = no;this.name = name;this.bir = bir;this.sex = sex;this.email = email;}public String getNo() {return no;}public void setNo(String no) {this.no = no;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Birthday getBir() {return bir;}public void setBir(Birthday bir) {this.bir = bir;}public boolean isSex() {return sex;}public void setSex(boolean sex) {this.sex = sex;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}@Overridepublic boolean equals(Object obj) {if (obj == null || obj instanceof Student) return false;if (obj == this) return true;Student s = (Student) obj;return this.no == s.no;}@Overridepublic String toString() {return "学号：" + no + "\n姓名：" + name + "\n生日：" + bir + "\n性别：" + (sex ? "男" : "女") + "\n邮箱：" + email;} } import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; import java.util.*;/*1、请使用序列化和反序列化机制，完成学生信息管理系统。系统打开时显示以下信息：欢迎使用学生信息管理系统，请认真阅读以下使用说明：请输入不同的功能编号来选择不同的功能：[1]查看学生列表[2]保存学生[3]删除学生[4]查看某个学生详细信息--------------------------------------------------------------------学生信息列表展示学号 姓名 性别------------------------------------1 zhangsan 男2 lisi 女.....--------------------------------------------------------------------查看某个学生详细信息学号：1姓名：张三生日：1990-10-10性别：男邮箱：zhangsan@123.com---------------------------------------------------------------------删除学生时，需要让用户继续输入删除的学生编号，根据编号删除学生。注意：请使用序列化和反序列化，以保证关闭之后，学生数据不丢失。学生数据要存储到文件中。*/ public class Homework {public static void main(String[] args) {StuInfoMagSys stuInfoMagSys = new StuInfoMagSys();stuInfoMagSys.sysInterface();} } import java.io.Serializable;public class Birthday implements Serializable {private int year;private int month;private int day;@Overridepublic String toString() {return year + "-" + month + "-" + day;}public int getYear() {return year;}public void setYear(int year) {this.year = year;}public int getMonth() {return month;}public void setMonth(int month) {this.month = month;}public int getDay() {return day;}public void setDay(int day) {this.day = day;}public Birthday(int year, int month, int day) {this.year = year;this.month = month;this.day = day;}public Birthday() {} } 新人创作打卡挑战赛发博客就能抽奖！定制产品红包拿不停！

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