提供了编程的基础技术教程

zl程序教程

您现在的位置是：首页 >  Java

当前栏目

Java---题库管理系统（小项目）（三）

JAVA 管理系统 输入
2023-03-14 22:41:35 时间

View

//用户View层
import studio.lyl.questionbankmanagementsystem.controller.UserController;
import studio.lyl.questionbankmanagementsystem.entity.User;
import studio.lyl.questionbankmanagementsystem.service.IUserService;
import studio.lyl.questionbankmanagementsystem.service.impl.UserServiceImpl;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/**
 * @Author: Re
 * @Date: 2020/12/11 22:28
 */
public class UserView {
    BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(System.in));
    UserController userController=new UserController();
    String id= null;
    public boolean loginAdministrator(){
        System.out.println("欢迎进入登录界面");
        System.out.println("请输入账号");
        String password=null;
        try {
            boolean re=true;
            while (re){
            id = bufferedReader.readLine();
            if(id==null){
                System.out.println("输入的账号有误请，重新输入");
                continue;
            }else {
                try {
                    Integer.parseInt(id);
                } catch (NumberFormatException e) {
                    System.out.println("输入的账号有误请，重新输入");
                    continue;
                }
            }
            re=false;
            }
            System.out.println("请输入密码");
            password=bufferedReader.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return userController.loginAdministrator(Integer.parseInt(id),password);
    }
    public boolean loginUser() {
        System.out.println("欢迎进入登录界面");
        System.out.println("请输入账号");
        String password=null;
        try {
            boolean re=true;
            while (re){
                id = bufferedReader.readLine();
                if(id==null){
                    System.out.println("输入的账号有误请，重新输入");
                    continue;
                }else {
                    try {
                        Integer.parseInt(id);
                    } catch (NumberFormatException e) {
                        System.out.println("输入的账号有误请，重新输入");
                        continue;
                    }
                }
                re=false;
            }
            System.out.println("请输入密码");
            password=bufferedReader.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return userController.loginUser(Integer.parseInt(id),password);
    }
    public void registUser() {
        System.out.println("欢迎进入注册界面");
        System.out.println("请输入您想要的账号");
        try {
            boolean re=true;
            while (re){
                id = bufferedReader.readLine();
                if(id==null){
                    System.out.println("输入的账号有误请，重新输入");
                    continue;
                }else {
                    try {
                        Integer.parseInt(id);
                    } catch (NumberFormatException e) {
                        System.out.println("输入的账号有误请，重新输入");
                        continue;
                    }
                }
                re=false;
            }
            System.out.println("请输入你的密码");
            String password=bufferedReader.readLine();
            System.out.println("请输入你的昵称");
            String userName=bufferedReader.readLine();
            User user=new User(Integer.parseInt(id),password,userName,0,0,0);
            userController.registUser(user);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void insertUser() {
        System.out.println("欢迎进入增加用户界面");
        System.out.println("请输入您想要的账号");
        String id= null;
        try {
            id = bufferedReader.readLine();
            System.out.println("请输入您的密码");
            String password=bufferedReader.readLine();
            System.out.println("请输入你的昵称");
            String userName=bufferedReader.readLine();
            User user=new User(Integer.parseInt(id),password,userName,0,0,0);
            userController.insertUser(user);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void deleteUserById() {
        System.out.println("欢迎进入用户删除界面");
        System.out.println("请输入您想删除的用户账号");
        String userId;
        try {
            userId = bufferedReader.readLine();
            userController.deleteUserById(Integer.parseInt(userId));
            bufferedReader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void updateUser() {
        System.out.println("欢迎进入更改用户信息界面");
        try {
            IUserService iUserService=new UserServiceImpl();
            User userInterposition=iUserService.selectUserById(Integer.parseInt(id));
            System.out.println("请输入新密码");
            String updatePassword=bufferedReader.readLine();
            System.out.println("请输入新昵称");
            String updateUserName=bufferedReader.readLine();
            User user=new User(Integer.parseInt(id),updatePassword,updateUserName,userInterposition.getNodeCount(),userInterposition.getCollectionCount(),userInterposition.getLevel());
            userController.updateUser(Integer.parseInt(id),user);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void selectUserById() {
        System.out.println("欢迎进入用户查询界面");
        System.out.println("用户信息如下");
        userController.selectUserById(Integer.parseInt(id));
    }
    public void selectUser() {
        System.out.println("欢迎进入用户查询界面");
        System.out.println("用户信息如下");
        userController.selectUser();
    }
}
//题库View层
import studio.lyl.questionbankmanagementsystem.controller.QuestionsController;
import studio.lyl.questionbankmanagementsystem.entity.Questions;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
/**
 * @Author: Re
 * @Date: 2020/12/11 22:29
 */
public class QuestionsView {
    QuestionsController questionsController=new QuestionsController();
    BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(System.in));
    public void insetQuestion() {
        System.out.println("欢迎进入添加题目界面");
        System.out.println("请输入题目类型");
        System.out.println("类型可分为 Math，English，Thought，HighLevelLanguage。");
        String type= null;
        try {
            type = bufferedReader.readLine();
            System.out.println("请输入内容");
            String content=bufferedReader.readLine();
            System.out.println("请输入题目答案");
            String answer=bufferedReader.readLine();
            System.out.println("请输入题目难易程度");
            String complexity=bufferedReader.readLine();
            List<Questions> questionsList=questionsController.selectQuestions(type);
            if (questionsList==null){
                Questions questions = new Questions(content, type, 1, complexity, answer);
                questionsController.insetQuestion(questions);
            }else {
                Questions questions = new Questions(content, type, questionsList.size() + 1, complexity, answer);
                questionsController.insetQuestion(questions);
            }
            System.out.println("添加题目成功");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void deleteQuestion() {
        System.out.println("欢迎进入删除题目页面");
        System.out.println("请输入题目类型");
        System.out.println("类型可分为 Math，English，Thought，HighLevelLanguage。");
        String type= null;
        try {
            type = bufferedReader.readLine();
            System.out.println("请输入题目序号");
            String sign=bufferedReader.readLine();
            questionsController.deleteQuestion(Integer.parseInt(sign),type);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void updateQuestion() {
        System.out.println("欢迎进入更改题目界面");
        System.out.println("请输入更改题目类型");
        System.out.println("类型可分为 Math，English，Thought，HighLevelLanguage。");
        String type= null;
        try {
            type = bufferedReader.readLine();
            System.out.println("请输入更改题目的序号");
            String sign=bufferedReader.readLine();
            System.out.println("请输入更改后内容");
            String content=bufferedReader.readLine();
            System.out.println("请输入更改后题目答案");
            String answer=bufferedReader.readLine();
            System.out.println("请输入更改后题目难易程度");
            String complexity=bufferedReader.readLine();
            Questions questions=new Questions(content,type,Integer.parseInt(sign),complexity,answer);
            questionsController.updateQuestion(Integer.parseInt(sign),type,questions);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void selectAnswer(int sign,String type){
        questionsController.selectAnswer(sign,type);
    }
    public void selectQuestion(int sign,String type) {
        System.out.println(questionsController.selectQuestion(sign,type));
    }
    public void selectQuestions(String type) {
        questionsController.selectQuestions(type);
    }
}
//笔记View层
import studio.lyl.questionbankmanagementsystem.controller.NoteController;
import studio.lyl.questionbankmanagementsystem.entity.Note;
import studio.lyl.questionbankmanagementsystem.entity.User;
import studio.lyl.questionbankmanagementsystem.service.IUserService;
import studio.lyl.questionbankmanagementsystem.service.impl.UserServiceImpl;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
/**
 * @Author: Re
 * @Date: 2020/12/11 22:29
 */
public class NoteView {
    NoteController noteController = new NoteController();
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
    String id;
    public void insetNote() {
        System.out.println("欢迎进入添加笔记界面");
        System.out.println("请输入用户的id");
        try {
            IUserService iUserService = new UserServiceImpl();
            id = bufferedReader.readLine();
            User user = iUserService.selectUserById(Integer.parseInt(id));
            System.out.println("请输入你想记录的内容");
            String content = bufferedReader.readLine();
            List<Note> noteListById = noteController.selectNoteById(Integer.parseInt(id));
            List<Note> noteList = noteController.selectNote();
            if(noteList==null&&noteListById==null){
                if (user == null) {
                    System.out.println("用户不存在");
                } else {
                    Note note = new Note(user.getName(), Integer.parseInt(id),  1,  1, content);
                    noteController.insetNote(note);
                }
            }else if(noteListById==null) {
                if (user == null) {
                    System.out.println("用户不存在");
                } else {
                    Note note = new Note(user.getName(), Integer.parseInt(id), noteList.size() + 1,  1, content);
                    noteController.insetNote(note);
                }
            }else {
                if (user == null) {
                    System.out.println("用户不存在");
                } else {
                    System.out.println(user);
                    System.out.println(noteList);
                    System.out.println(noteListById);
                    Note note = new Note(user.getName(), Integer.parseInt(id), noteList.size() + 1, noteListById.size() + 1, content);
                    noteController.insetNote(note);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void deleteNote() {
        System.out.println("欢迎进入删除笔记界面");
        System.out.println("请输入您想删除笔记的用户id");
        try {
            System.out.println("请输入您想删除的序号");
            String sign = bufferedReader.readLine();
            noteController.deleteNote(Integer.parseInt(id), Integer.parseInt(sign));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void updateNote() {
        System.out.println("欢迎进入更改笔记界面");
        System.out.println("请输入需要更改笔记的用户id");
        try {
            id = bufferedReader.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("请输入需要修改的内容");
        String content;
        try {
            content = bufferedReader.readLine();
            List<Note> noteListById = noteController.selectNoteById(Integer.parseInt(id));
            List<Note> noteList = noteController.selectNote();
            IUserService iUserService = new UserServiceImpl();
            User user = iUserService.selectUserById(Integer.parseInt(id));
            if (user == null) {
                System.out.println("用户不存在");
            } else {
                Note note = new Note(user.getName(), Integer.parseInt(id), noteList.size(), noteListById.size(), content);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public boolean selectNoteById() {
        System.out.println("欢迎进入笔记查询界面");
        System.out.println("请输入您要查询笔记的用户id");
        String id = null;
        try {
            id = bufferedReader.readLine();
            System.out.println("查询结果如下");
            List<Note> noteList = noteController.selectNoteById(Integer.parseInt(id));
            if (noteList==null) {
                System.out.println("用户无笔记存在");
                return true;
            } else {
                for (int i = 0; i < noteList.size(); i++) {
                    System.out.println(noteList.get(i));
                }
            }
            } catch(IOException e){
                e.printStackTrace();
            }
            return true;
        }
    public boolean selectNote() {
        System.out.println("欢迎进入笔记查询界面");
        System.out.println("查询结果如下");
        List<Note> noteList = noteController.selectNote();
        for (int i = 0; i < noteList.size(); i++) {
            System.out.println(noteList.get(i));
        }
        return true;
    }
}
//SeparationView层
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/**
 * @Author: Re
 * @Date: 2020/12/16 0:09
 */
public class Separation {
    BufferedReader bufferedReader = null;
    public void separation() {
        NoteView noteView = new NoteView();
        QuestionsView questionsView = new QuestionsView();
        UserView userView = new UserView();
        boolean symbolUser = false;
        boolean symbolAdministrator = false;
        boolean re0 = true;
        while (re0) {
            System.out.println("*********请选择页面进入*********");
            System.out.println("1.注册      2.登录     3.管理员登录   4.退出系统");
            bufferedReader = new BufferedReader(new InputStreamReader(System.in));
            String chioce = null;
            try {
                chioce = bufferedReader.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            switch (chioce) {
                case "1":
                    userView.registUser();
                    re0 = false;
                    break;
                case "2":
                    symbolUser = userView.loginUser();
                    re0 = !symbolUser;
                    break;
                case "3":
                    symbolAdministrator = userView.loginAdministrator();
                    re0 = !symbolAdministrator;
                    break;
                case "4":
                    re0 = false;
                    break;
                default:
                    System.out.println("您输入的数据有误");
            }
        }
        if (symbolUser) {
            boolean re = true;
            boolean symbolQuestion = false;
            boolean symbolNote = false;
            while (re) {
                System.out.println("*********请选择页面进入*********");
                System.out.println("1.更改用户信息  2.查询用户信息  3.进入题库  4. 查看笔记   5.退出程序");
                String chioceSecond = null;
                try {
                    chioceSecond = bufferedReader.readLine();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                switch (chioceSecond) {
                    case "1":
                        userView.updateUser();
                        break;
                    case "2":
                        userView.selectUserById();
                        break;
                    case "3":
                        symbolQuestion = true;
                        break;
                    case "4":
                        symbolNote = noteView.selectNoteById();
                        break;
                    case "5":
                        re = false;
                        break;
                    default:
                        System.out.println("您输入的数据有误");
                        break;
                }
                if (symbolQuestion) {
                    System.out.println("欢迎进入题库");
                    System.out.println("*********请选择页面进入*********");
                    System.out.println("请输入您想查找的题目类型");
                    System.out.println("类型可分为 Math，English，Thought，HighLevelLanguage。");
                    String type = null;
                    String sign= null;
                    boolean re1=true;
                    try {
                        while (re1) {
                            type = bufferedReader.readLine();
                            if(type.equals("Math")||type.equals("English")||type.equals("Thought")||type.equals("HighLevelLanguage")){
                              re1=false;
                            }else {
                                System.out.println("输入错误，请重新输入");
                            }
                        }
                        System.out.println("请输入需要查找的题目序号");
                        sign= bufferedReader.readLine();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    questionsView.selectQuestion(Integer.parseInt(sign),type);
                    System.out.println("是否查看该题答案");
                    System.out.println("1. 是      2.返回主界面");
                    try {
                        chioceSecond=bufferedReader.readLine();
                        switch (chioceSecond){
                            case "1":
                                questionsView.selectAnswer(Integer.parseInt(sign),type);
                                break;
                            case "2":
                                break;
                            default:
                                System.out.println("输入的数据有误");
                                break;
                        }
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                symbolQuestion = false;
                if (symbolNote) {
                    System.out.println("*********请选择页面进入*********");
                    System.out.println("1.增加笔记  2.删除笔记  3.更改笔记  4.查看笔记  5.退出程序");
                    String chioceForth = null;
                    try {
                        chioceForth = bufferedReader.readLine();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    switch (chioceForth) {
                        case "1":
                            noteView.insetNote();
                            break;
                        case "2":
                            noteView.deleteNote();
                            break;
                        case "3":
                            noteView.updateNote();
                            break;
                        case "4":
                            noteView.selectNoteById();
                            break;
                        case "5":
                            re = false;
                            break;
                        default:
                            System.out.println("您输入的数据有误");
                            break;
                    }
                }
                symbolNote=false;
            }
        }
        if (symbolAdministrator) {
            boolean re = true;
            boolean symbolQuestion = false;
            boolean symbolNote = false;
            while (re) {
                System.out.println("*********请选择页面进入*********");
                System.out.println("1.增添用户      2.查看所有用户信息      3更改管理员信息        4.根据账号删除用户      5.进入题库        6.查看用户笔记      7.退出程序");
                BufferedReader bufferedReaderSecond = new BufferedReader(new InputStreamReader(System.in));
                String chioceSecond = null;
                try {
                    chioceSecond = bufferedReaderSecond.readLine();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                switch (chioceSecond) {
                    case "1":
                        userView.insertUser();
                        break;
                    case "2":
                        userView.selectUser();
                        break;
                    case "3":
                        userView.updateUser();
                        break;
                    case "4":
                        userView.deleteUserById();
                        break;
                    case "5":
                        symbolQuestion = true;
                        break;
                    case "6":
                        symbolNote = noteView.selectNote();
                        break;
                    case "7":
                        re = false;
                        break;
                    default:
                        System.out.println("您输入的数据有误");
                        break;
                }
                    if (symbolQuestion) {
                        System.out.println("欢迎进入题库");
                        System.out.println("*********请选择页面进入*********");
                        System.out.println("请输入您想查看的题目类型");
                        System.out.println("类型可分为 Math，English，Thought，HighLevelLanguage。");
                        String type = null;
                        boolean re2=true;
                        try {
                            while (re2) {
                                type = bufferedReaderSecond.readLine();
                                if (type.equals("Math")||type.equals("English")||type.equals("Thought")||type.equals("HighLevelLanguage")) {
                                    re2=false;
                                }else{
                                    System.out.println("输入错误，请重新输入");
                                }
                            }
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        System.out.println("欢迎进入"+type+"题库");
                        questionsView.selectQuestions(type);
                        System.out.println("*********请选择页面进入*********");
                        System.out.println("1.再次查找----------2.增加题目---------3.删除题目-----------4.更改题目---------6.退出程序");
                        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
                        String chioceThird = null;
                        try {
                            chioceThird = bufferedReader.readLine();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        switch (chioceThird) {
                            case "1":
                                questionsView.selectQuestions(type);
                                break;
                            case "2":
                                questionsView.insetQuestion();
                                break;
                            case "3":
                                questionsView.deleteQuestion();
                                break;
                            case "4":
                                questionsView.updateQuestion();
                                break;
                            case "5":
                                re = false;
                                break;
                            default:
                                System.out.println("你输入的数据有误");
                        }
                    }
                    symbolQuestion=false;
                if (symbolNote) {
                    System.out.println("*********请选择页面进入*********");
                    System.out.println("1.增加笔记  2.删除笔记  3.更改笔记  4.查看笔记  5.退出程序");
                    String chioceForth = null;
                    try {
                        chioceForth = bufferedReaderSecond.readLine();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    switch (chioceForth) {
                        case "1":
                            noteView.insetNote();
                            break;
                        case "2":
                            noteView.deleteNote();
                            break;
                        case "3":
                            noteView.updateNote();
                            break;
                        case "4":
                            noteView.selectNoteById();
                            break;
                        case "5":
                            re = false;
                            break;
                        default:
                            System.out.println("您输入的数据有误");
                            break;
                    }
                }
                symbolNote=false;
            }
        }
    }
}

Utils

//Creat
import java.io.IOException;
/**
 * @author Ding
 * @date 2019/11/23 19:55
 */
public class Create {
    public static void main(String[] args) throws IOException {
        CreateFileName createFileName=new CreateFileName();
        CreatePathName createPathName=new CreatePathName();
        createPathName.create("QuestionBankManagementSystem");
        createPathName.create("QuestionBankManagementSystem\Questions");
        createFileName.create("QuestionBankManagementSystem\Note.txt");
        createFileName.create("QuestionBankManagementSystem\Questions\Math.txt");
        createFileName.create("QuestionBankManagementSystem\Questions\English.txt");
        createFileName.create("QuestionBankManagementSystem\Questions\Thought.txt");
        createFileName.create("QuestionBankManagementSystem\Questions\HighLevelLanguage.txt");
        createFileName.create("QuestionBankManagementSystem\User.txt");
    }
}
//CreateFileName
import java.io.File;
import java.io.IOException;
/**
 * @author Ding
 * @date 2019/11/23 19:54
 */
public class CreateFileName {
    /**
     * 创建文件
     * @param filename
     * @return boolean
     * @throws IOException
     */
    public boolean create(String filename) throws IOException {
        File file = new File(filename);
        file.createNewFile();
        if (file.exists()) {
            return false;
        }
        if (file.createNewFile()) {
            return true;
        } else {
            return false;
        }
    }
}
//CreatePathName
import java.io.File;
import java.io.IOException;
/**
 * @author Ding
 * @date 2019/11/23 19:53
 */
public class CreatePathName {
    /**
     * 创建目录
     * @param Filename
     * @return boolean
     * @throws IOException
     */
    public boolean create(String Filename) throws IOException {
        File file = new File(Filename);
        if (file.exists()) {
            return false;
        }
        if (!Filename.endsWith(File.separator)) {
            Filename = Filename + File.separator;
        }
        if (file.mkdir()) {
            return true;
        } else {
            return false;
        }
    }
}

Main

import studio.lyl.questionbankmanagementsystem.view.*;
/**
 * @Author: Re
 * @Date: 2020/12/7 22:36
 */
public class QuestionBankManagementSystem {
    public static void main(String[] args) {
        Separation separation=new Separation();
        separation.separation();
    }
}

总结

总的来说，这次小组的考核题虽然难，但好在给的时间挺长的，所以我才能好好的完善项目，虽然还有缺点，但我满足了。

这个项目我还认识了个大哥“空指针异常”，真是噩梦。

相关文章