聪聪工作室---XML+仿cmd---BeSuper

XML+仿cmd

BeSuper

思维导图：

BeSuper思维导图.png

BeSuper.java 代码

import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlValue;

@XmlRootElement(name = "besuper")
@XmlAccessorType(XmlAccessType.FIELD)
public class BeSuper {
    
    @XmlElementWrapper(name = "users")
    @XmlElement(name = "user")
    private List<User> users;

    @XmlElementWrapper(name = "questions")
    @XmlElement(name = "question")
    private List<Question> questions;

    @XmlElementWrapper(name = "answers")
    @XmlElement(name = "answer")
    private List<Answer> answers;

    public List<User> getUsers() {
        return users;
    }

    public void setUsers(List<User> users) {
        this.users = users;
    }

    public List<Question> getQuestions() {
        return questions;
    }

    public void setQuestions(List<Question> questions) {
        this.questions = questions;
    }

    public List<Answer> getAnswers() {
        return answers;
    }

    public void setAnswers(List<Answer> answers) {
        this.answers = answers;
    }
}

@XmlAccessorType(XmlAccessType.FIELD)
class User {

    @XmlElement(name = "name")
    private String name;
    @XmlElement(name = "score")
    private int score;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getScore() {
        return score;
    }

    public void setScore(int score) {
        this.score = score;
    }

}

@XmlAccessorType(XmlAccessType.FIELD)
class Question {

    @XmlAttribute(name = "id")
    private String id;
    @XmlAttribute(name = "from")
    private String from;
    @XmlAttribute(name = "solved")
    private boolean solved;
    @XmlValue
    private String content;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
    
    public boolean isSolved() {
        return solved;
    }

    public void setSolved(boolean solved) {
        this.solved = solved;
    }
    
    public String toString() {
        String template = "[%s] %s. [%s] from %s";
        String solvedLabel = isSolved() ? "SOLVED" : "UNSOLVED";
        return String.format(template, solvedLabel, id, content, from);
    }
}

@XmlAccessorType(XmlAccessType.FIELD)
class Answer {
    @XmlAttribute(name = "id")
    private String id;
    @XmlAttribute(name = "from")
    private String from;
    @XmlValue
    private String content;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
    
    public String toString() {
        return id + ": [ANSWER: " + content + ", from " + from + "]";
    }
}

image01.png

QingkeConsole.java 代码

import java.io.InputStream;
import java.util.Scanner;

public class QingkeConsole {

    // private
    private static Scanner scanner;
    
    static {
        scanner = new Scanner(System.in);
    }

    private QingkeConsole(InputStream is) {
        scanner = new Scanner(is);
    }

    public static String NEW_LINE = "\n";

    public static void print(String line) {
        System.out.print(line);
    }

    public static void println(Object object) {
        System.out.println(object);
    }
    
    public static void println(String line) {
        System.out.println(line);
    }

    public static String askUserInput(String prompt) {
        while (true) {
            System.out.print(prompt);
            String input = scanner.nextLine().trim();
            
            if (!"".equals(input)) {
                return input;
            }
            System.out.println("Invalid input. Empty value is not allowed!");
        }
    }
}

image02.png

BeSuperLauncher.java 代码

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Collections;
import java.util.Comparator;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;

public class BeSuperLauncher {

    private final static String EXIT = "exit";
    private final static String HELP = "help";
    private final static String ASK = "ask";
    private final static String ANSWER = "answer";
    private final static String LIST = "list";
    private final static String GRADE = "grade";

    private static String command;
    private static BeSuper beSuper;
    private static User player = null;

    public static void main(String[] args) {
        // initialize fields
        loadBeSuper();

        // entrance
        QingkeConsole.print("Welcome to play this game, ");
        while (true) {
            String name = QingkeConsole.askUserInput("please enter your name: ");
            
            if ("".equals(name.trim())) {
                QingkeConsole.println("Name is not allowed to be empty!");
                continue;
            }
            
            for (User user : beSuper.getUsers()) {
                if (name.equals(user.getName())) {
                    player = user;
                }
            }
            if (player == null) {
                player = new User();
                player.setName(name);
                
                beSuper.getUsers().add(player);
                saveBeSuper();
            }
            break;
        }

        QingkeConsole.println("Nice to meet you, " + player.getName() + ". You can type 'help' for usage.");
        while (true) {
            command = QingkeConsole.askUserInput("cmd> ");

            if (HELP.equalsIgnoreCase(command)) {
                printUsage();
                continue;
            } else if (EXIT.equalsIgnoreCase(command)) {
                System.out.println("Bye Bye");
                break;
            } else if (LIST.equalsIgnoreCase(command)){
                for (Question question : beSuper.getQuestions()) {
                    QingkeConsole.println(question);
                }
            } else if (GRADE.equalsIgnoreCase(command)) {
                QingkeConsole.println("Your score: " + player.getScore());
                continue;
            } else if (ASK.equalsIgnoreCase(command)) {
                String content = QingkeConsole.askUserInput("Please enter your question: ");
                
                Question question = new Question();
                question.setContent(content);
                question.setFrom(player.getName());
                question.setSolved(false);
                question.setId(System.currentTimeMillis() + "");

                beSuper.getQuestions().add(question);
                QingkeConsole.println("Your question has been created!");

                saveBeSuper();

                continue;
            } else if (ANSWER.equalsIgnoreCase(command)) {
                String qid = QingkeConsole.askUserInput("Enter the question id： ");
                
                Question q = null;
                Answer a = null;
                for (Question question : beSuper.getQuestions()) {
                    if (qid.equals(question.getId())) {
                        q = question;
                        break;
                    }
                }
                
                if (q == null) {
                    QingkeConsole.println("Question for id: " + qid + " is not exist.");
                    continue;
                } else if (q.isSolved()) {
                    for (Answer answer : beSuper.getAnswers()) {
                        if (qid.equalsIgnoreCase(answer.getId())) {
                            a = answer;
                            break;
                        }
                    }
                    QingkeConsole.println("Qusestion has been solved. See anwser below: ");
                    QingkeConsole.println(a);
                    continue;
                }

                String content = QingkeConsole.askUserInput("Enter your answer for the question");
       
                a = new Answer();
                a.setId(qid);
                a.setFrom(player.getName());
                a.setContent(content);
                
                q.setSolved(true);
                player.setScore(player.getScore() + 10);
                beSuper.getAnswers().add(a);
                QingkeConsole.println("Thanks for your answer.");
                
                saveBeSuper();
                
                continue;
            } else {
                QingkeConsole.println("Invalid command. See the user as below:");
                printUsage();
            }
        }
    }

    private static void loadBeSuper() {
        JAXBContext ctx;
        
        try {
            ctx = JAXBContext.newInstance(BeSuper.class);
            beSuper = (BeSuper) ctx.createUnmarshaller().unmarshal(new FileInputStream("besuper.xml"));
            
            Collections.sort(beSuper.getQuestions(), new Comparator<Question>() {

                @Override
                public int compare(Question o1, Question o2) {
                    boolean isSovled1 = o1.isSolved();
                    boolean isSovled2 = o2.isSolved();
                    
                    if (isSovled1 == isSovled2) {
                        String id1 = o1.getId();
                        String id2 = o2.getId();
                        return id1.compareTo(id2);
                    } else if (isSovled1) {
                        return 1;
                    } else if (isSovled2) {
                        return -1;
                    }
                    return 0;
                }
                
            });
            
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
    
    private static void saveBeSuper() {
        JAXBContext ctx;

        try {
            ctx = JAXBContext.newInstance(BeSuper.class);
            ctx.createMarshaller().marshal(beSuper, new File("besuper.xml"));
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
    
    private static void printUsage() {
        StringBuilder sb = new StringBuilder("This is the usage for BeSuper game:\n");
        sb.append("exit   - Exit").append("\n");
        sb.append("help   - Print usage").append("\n");
        sb.append("list   - List the opening question").append("\n");
        sb.append("ask    - Create a question").append("\n");
        sb.append("answer - Answer a question").append("\n");
        sb.append("grade  - Get your grade").append("\n");
        QingkeConsole.println(sb.toString());
    }
}

image03.png

运行实现结果：

image04.png image05.png

具体详见思维导图

作者： 聪聪工作室
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微信： 18758171751
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