JavaSe:开发人员调度软件

Project3开发人员调度软件

🎈目标

• 模拟实现一个基于文本界面的《开发团队调度软件》
• 熟悉Java面向对象的高级特性，进一步掌握编 程技巧和调试技巧

• 主要涉及以下知识点：
  1. 类的继承性和多态性
  2. 对象的值传递、接口
  3. static和final修饰符
  4. 特殊类的使用：包装类、抽象类、内部类
  5. 异常处理

🎈需求说明

• 该软件实现以下功能：
  1. 软件启动时，根据给定的数据创建公司部分成员列表（数组）
  2. 根据菜单提示，基于现有的公司成员，组建一个开发团队以开发一个新的项目
  3. 组建过程包括将成员插入到团队中，或从团队中删除某成员，还可以列出团队中现有成员的列表
  4. 开发团队成员包括架构师、设计师和程序员

⭐软件结构

该软件由以下三个模块组成：

• com.atguigu.team.view模块为主控模块，负责菜单的显示和处理用户操作
• com.atguigu.team.service模块为实体对象（Employee及其子类如程序员等）的管理模块， NameListService和TeamService类分别用各自的数组来管理公司员工和开发团队成员对象
• domain模块为Employee及其子类等JavaBean类所在的包

🎈domain

✨Architect.java

package src.SUMMER_java.project_3.domain;

public class Architect extends Designer {// ??????
    private int stock;

    public int getStock() {
        return stock;
    }

    public void setStock(int stock) {
        this.stock = stock;
    }

    Architect() {
        super();
    }

    public Architect(int id, int age, String name, double salary, Equipment equipment, double bonus, int stock) {
        super(id, age, name, salary, equipment, bonus);
        this.stock = stock;
    }

    public String getDetailsForTeam() {
        return getMemberDetails() + "\t架构师\t" +
                getBonus() + "\t" + getStock();
    }

    @Override
    public String toString() {
        return getDetails() + "架构师\t" + getStatus() + "\t" +
                getBonus() + "\t" + getStock() + "\t" + getEquipment().getDescription();
    }
}

✨Designer.java

package src.SUMMER_java.project_3.domain;

public class Designer extends Programmer {
    private double bonus;

    public double getBonus() {
        return bonus;
    }

    public void setBonus(double bonus) {
        this.bonus = bonus;
    }

    public Designer(int id, int age, String name, double salary,
            Equipment equipment, double bonus) {
        super(id, age, name, salary, equipment);
        this.bonus = bonus;
    }

    Designer() {
        super();
    }

    public String getDetailsForTeam() {
        return getMemberDetails() + "\t设计师\t" + getBonus();
    }

    @Override
    public String toString() {
        return getDetails() + "\t设计师\t" + getStatus() + "\t" +
                getBonus() + "\t\t" + getEquipment().getDescription();
    }
}

✨Programmer.java

package src.SUMMER_java.project_3.domain;

import src.SUMMER_java.project_3.service.*;

public class Programmer extends Employee { // coder
    private int memberId;
    private Status status = Status.FREE; // todo NOTICE
    // FREE-空闲
    // BUSY-已加入开发团队
    // VOCATION-正在休假
    private Equipment equipment;

    public Programmer(int id, int age, String name, double salary, Equipment equipment) {
        // Constructor call must be the first statement in a constructor
        super(id, age, name, salary);
        this.equipment = equipment;
    }

    public Programmer() {
    }

    public int getMemberId() {
        return memberId;
    }

    public void setMemberId(int memberId) {
        this.memberId = memberId;
    }

    public Status getStatus() {
        return status;
    }

    public void setStatus(Status status) {
        this.status = status;
    }

    public Equipment getEquipment() {
        return equipment;
    }

    public void setEquipment(Equipment equipment) {
        this.equipment = equipment;
    }

    protected String getMemberDetails() {
        return getMemberId() + "/" + getDetails();
    }

    public String getDetailsForTeam() {
        return getMemberDetails() + "\t程序员";
    }

    @Override
    public String toString() {
        return getDetails() + "\t程序员\t" + status + "\t" + equipment.getDescription();
    }
}

✨Employee.java

package src.SUMMER_java.project_3.domain;

public class Employee {
    private int id;
    private String name;
    private int age;
    private double salary;

    public int getAge() {
        return age;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public double getSalary() {
        return salary;
    }

    public void setAge(int age) {
        this.age = age;
    }

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

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

    public void setSalary(double salary) {
        this.salary = salary;
    }

    public Employee(int id, int age, String name, double salary) {
        this.age = age;
        this.name = name;
        this.salary = salary;
        this.id = id;
    }

    public Employee() {

    }

    protected String getDetails() {
        return id + "\t" + name + "\t" + age + "\t" + salary;
    }

    @Override
    public String toString() {
        return getDetails();
    }
}

✨Equipment.java

package src.SUMMER_java.project_3.domain;

public interface Equipment {
    String getDescription();
}

✨NoteBook.java

package src.SUMMER_java.project_3.domain;

public class NoteBook implements Equipment {
    private String model;// 机器型号
    private double price;// 机器价格

    public String getModel() {
        return model;
    }

    public double getPrice() {
        return price;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    NoteBook() {

    }

    public NoteBook(String m, double p) {
        super();
        model = m;
        price = p;
    }

    public String getDescription() {
        return model + "(" + price + ")";
    }
}

✨PC.java

package src.SUMMER_java.project_3.domain;

public class PC implements Equipment {
    private String model;// 机器型号
    private String display;// 显示器名称

    public String getModel() {
        return model;
    }

    public void setDisplay(String display) {
        this.display = display;
    }

    public String getDisplay() {
        return display;
    }

    public void setModel(String model) {
        this.model = model;
    }

    @Override
    public String getDescription() {
        return model + "( " + display + " )";
    }

    public PC(String model, String display) {
        this.display = display;
        this.model = model;

    }
}

✨Data.java

package src.SUMMER_java.project_3.domain;

public class Data {
        public static final int EMPLOYEE = 10;
        public static final int PROGRAMMER = 11;
        public static final int DESIGNER = 12;
        public static final int ARCHITECT = 13;

        public static final int PC = 21;
        public static final int NOTEBOOK = 22;
        public static final int PRINTER = 23;

        // Employee : 10, id, name, age, salary
        // Programmer: 11, id, name, age, salary
        // Designer : 12, id, name, age, salary, bonus
        // Architect : 13, id, name, age, salary, bonus, stock
        public static final String[][] EMPLOYEES = {
                        { "10", "1", "马云", "22", "3000" },
                        { "13", "2", "马化腾", "32", "18000", "15000", "2000" },
                        { "11", "3", "李彦宏", "23", "7000" },
                        { "11", "4", "刘强东", "24", "7300" },
                        { "12", "5", "雷军", "28", "10000", "5000" },
                        { "11", "6", "任志强", "22", "6800" },
                        { "12", "7", "柳传志", "29", "10800", "5200" },
                        { "13", "8", "杨元庆", "30", "19800", "15000", "2500" },
                        { "12", "9", "史玉柱", "26", "9800", "5500" },
                        { "11", "10", "丁磊", "21", "6600" },
                        { "11", "11", "张朝阳", "25", "7100" },
                        { "12", "12", "杨致远", "27", "9600", "4800" }
        };

        // 如下的EQUIPMENTS数组与上面的EMPLOYEES数组元素一一对应
        // PC :21, model, display
        // NoteBook:22, model, price
        // Printer :23, name, type
        public static final String[][] EQUIPMENTS = {
                        {},
                        { "22", "联想T4", "6000" },
                        { "21", "戴尔", "NEC17寸" },
                        { "21", "戴尔", "三星 17寸" },
                        { "23", "佳能 2900", "激光" },
                        { "21", "华硕", "三星 17寸" },
                        { "21", "华硕", "三星 17寸" },
                        { "23", "爱普生20K", "针式" },
                        { "22", "惠普m6", "5800" },
                        { "21", "戴尔", "NEC 17寸" },
                        { "21", "华硕", "三星 17寸" },
                        { "22", "惠普m6", "5800" }
        };
}

✨Printer.java

package src.SUMMER_java.project_3.domain;

public class Printer implements Equipment {
    private String type;
    private String name;

    public String getName() {
        return name;
    }

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

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    Printer() {
    }

    public Printer(String type, String name) {
        super();
        this.name = name;
        this.type = type;
    }

    @Override
    public String getDescription() {
        return name + "( " + type + " )";
    }
}

🎈Service

✨NameListService.java

package src.SUMMER_java.project_3.service;

import src.SUMMER_java.project_3.domain.*;
import static src.SUMMER_java.project_3.domain.Data.*;
//导入Data 下所有的静态结构  :employee = new Employee[Data.EMPLOYEES.length];

public class NameListService {
    // 负责将Data中的数据分装到Employee[] 中，同时提供相应的Employee[] method
    public static Employee[] employees;

    public NameListService() {
        // 根据Data类中的数据构建不同的对象，包括employee,Programmer,Designer,Architect
        // 将对象存于数组中
        employees = new Employee[EMPLOYEES.length];
        // todo employee = new Employee[Data.EMPLOYEES.length];
        for (int i = 0; i < employees.length; i++) {
            int type = Integer.parseInt(EMPLOYEES[i][0]);
            // todo 提前获取属性
            int id = Integer.parseInt(EMPLOYEES[i][1]);
            String name = EMPLOYEES[i][2];
            int age = Integer.parseInt(EMPLOYEES[i][3]);
            double salary = Double.parseDouble(EMPLOYEES[i][4]);
            switch (type) {
                case EMPLOYEE:
                    employees[i] = new Employee(id, age, name, salary);
                    break;
                case PROGRAMMER:
                    Equipment equipment_PROGRAMMER = createEquipment(i); // 获取 equipment
                    employees[i] = new Programmer(id, age, name, salary, equipment_PROGRAMMER);
                    break;
                case DESIGNER:
                    Equipment equipment_DESIGNER = createEquipment(i);
                    double bonus_DESIGNER = Double.parseDouble(EMPLOYEES[i][5]);
                    employees[i] = new Designer(id, age, name, salary, equipment_DESIGNER, bonus_DESIGNER);
                    break;
                case ARCHITECT:
                    double bonus_ARCHITECT = Double.parseDouble(EMPLOYEES[i][5]);
                    Equipment equipment_ARCHITECT = createEquipment(i);
                    int stock = Integer.parseInt(EMPLOYEES[i][6]);
                    employees[i] = new Architect(id, age, name, salary, equipment_ARCHITECT, bonus_ARCHITECT, stock);
                    break;
            }
        }
    }

    /**
     * @return Employee[]
     */
    public Employee[] getAllEmployees() {
        return employees;
    }

    /**
     * @param ID
     * @return Employee[]i
     * @throws Exception
     */
    public Employee getEmployees(int ID) throws Exception {

        for (int i = 0; i < employees.length + 1; i++) {
            if (employees[i].getId() == ID) {
                return employees[i];
            }
        }
        throw new TeamException("The specified employee could not be found");
    }

    /**
     * @Description 获取指定index上的员工的设备
     * @param i
     * @return Equipment
     * 
     */
    public static Equipment createEquipment(int idx) { // 获取指定id 的equipment
        int type = Integer.parseInt(EQUIPMENTS[idx][0]); // 通过数字判断 类型
        switch (type) {
            case PC:// 21
                return new PC(EQUIPMENTS[idx][1], EQUIPMENTS[idx][2]);
            case NOTEBOOK: // Data.NOTEBOOK 22
                return new NoteBook(EQUIPMENTS[idx][1], Double.parseDouble(EQUIPMENTS[idx][2]));
            case PRINTER:// Data.PRINTER 23
                return new Printer(EQUIPMENTS[idx][1], EQUIPMENTS[idx][2]);

        }
        return null;
    }

}

✨Status.java

package src.SUMMER_java.project_3.service;

public class Status {

    private final String NAME;

    private Status(String name) {
        this.NAME = name;
    }

    public static final Status FREE = new Status("FREE");
    public static final Status BUSY = new Status("BUSY");
    public static final Status VOCATION = new Status("VOCATION");

    public String getNAME() {
        return NAME;
    }

    public String toString() {
        return NAME;
    }
}
// Status是项目service包下自定义的类，
// 声明三个对象属性，分别表示成员的状态。
// FREE-空闲
// BUSY-已加入开发团队
// VOCATION-正在休假

✨TeamException.java

package src.SUMMER_java.project_3.service;

public class TeamException extends Exception {
    static final long serialVersionUID = -3387516947546229948L;

    public TeamException(String ms) {
        super(ms);
    }
}

✨TeamService.java

package src.SUMMER_java.project_3.service;
//关于开发团队成员的管理：添加、删除等。

import src.SUMMER_java.project_3.domain.Architect;
import src.SUMMER_java.project_3.domain.Designer;
import src.SUMMER_java.project_3.domain.Employee;
import src.SUMMER_java.project_3.domain.Programmer;

public class TeamService {
    public TeamService() {
    }

    private static int counter = 1;
    private static final int MAX_MEMBER = 5;
    private Programmer[] team = new Programmer[MAX_MEMBER]; // 保存开发团队成员
    private int total; // record real person num

    public Programmer[] getTeam() {
        Programmer[] temp = new Programmer[total];
        for (int i = 0; i < total; i++) {
            temp[i] = team[i];
        }
        return temp;
    }

    /**
     * 将指定的员工添加到团队中
     * 
     * @param memberId
     * @throws TeamException
     *                       成员已满，无法添加
     *                       该成员不是开发人员，无法添加
     *                       该员工已在本开发团队中
     *                       该员工已是某团队成员
     *                       该员正在休假，无法添加
     *                       团队中至多只能有一名架构师
     *                       团队中至多只能有两名设计师
     *                       团队中至多只能有三名程序员
     * 
     */

    public void addMember(Employee e) throws TeamException {// 添加员工
        if (total >= MAX_MEMBER)
            throw new TeamException("成员已满，无法添加");

        if (!(e instanceof Programmer))
            throw new TeamException("成员不是开发人员，无法添加");
        if (isExist(e))
            throw new TeamException("成员已加入团队，无法添加");
        Programmer p = (Programmer) e;
        if (p.getStatus().getNAME().equals("BUSY")) {
            throw new TeamException("成员已是某团队成员，无法添加");
        } else if (p.getStatus().getNAME().equals("VOCATION"))
            throw new TeamException("成员VOCATION，无法添加");
        // 1 架构师 2 设计师 3 程序员
        int numOfArh = 0, numOfDes = 0, numOfPro = 0;
        for (int i = 0; i < total; i++) {
            if (team[i] instanceof Architect)
                numOfArh++;
            else if (team[i] instanceof Designer)
                numOfDes++;
            else
                numOfPro++;
        }
        if (p instanceof Architect) {
            if (numOfArh >= 1)
                throw new TeamException("  架构师 should <=1，无法添加");
        } else if (p instanceof Designer)
            if (numOfDes >= 2)
                throw new TeamException("  设计师 should <=2，无法添加");
            else if (p instanceof Programmer)
                if (numOfPro >= 3)
                    throw new TeamException("  程序员 should <=3，无法添加");

        team[total++] = p;
        p.setStatus(Status.BUSY);
        p.setMemberId(counter++);
    }

    /**
     * @param memberId
     * @throws TeamException
     *                       当选择“删除团队成员”菜单时，将执行从开发团队中删除指定（通过TeamID）成员的功能：
     * 
     *                       1-团队列表 2-添加团队成员 3-删除团队成员 4-退出 请选择(1-4)：3
     * 
     */
    public void removeMember(int memberId) throws TeamException {
        if (!isExist(memberId)) { // 员工未加入本团队
            throw new TeamException("找不到指定memberId的员工，删除失败");
        }
        int i;
        for (i = 0; i < total; i++) {
            if (team[i].getMemberId() == memberId) {
                team[i].setStatus(Status.FREE);
                // public static final Status FREE=new Status("FREE");
                for (int j = i; j < total - 1; i++) {
                    team[j] = team[j + 1];
                }
                total--;
            }
        }
        // todo if(i==total ) 也是没找到

    }

    private boolean isExist(Employee e) { // 判断员工是否已加入本团队
        for (int i = 0; i < total; i++) {
            if (team[i].getName() == e.getName())
                return true;
        }
        return false;
    }

    private boolean isExist(int memberId) { // 判断员工是否已加入本团队
        for (int i = 0; i < total; i++) {
            if (team[i].getMemberId() == memberId)
                return true;
        }
        return false;
    }

}

✨TSUtility工具类

package src.SUMMER_java.project_3.service;

import java.util.*;

/**
 * 
 * @Description 项目中提供了TSUtility.java类，可用来方便地实现键盘访问。
 * @author shkstart Email:shkstart@126.com
 * @version
 * @date 2019年2月12日上午12:02:58
 *
 */
public class TSUtility {
    private static Scanner scanner = new Scanner(System.in);

    /**
     * 
     * @Description 该方法读取键盘，如果用户键入’1’-’4’中的任意字符，则方法返回。返回值为用户键入字符。
     * @author shkstart
     * @date 2019年2月12日上午12:03:30
     * @return
     */
    public static char readMenuSelection() {
        char c;
        for (;;) {
            String str = readKeyBoard(1, false);
            c = str.charAt(0);
            if (c != '1' && c != '2' &&
                    c != '3' && c != '4') {
                System.out.print("选择错误，请重新输入：");
            } else
                break;
        }
        return c;
    }

    /**
     * 
     * @Description 该方法提示并等待，直到用户按回车键后返回。
     * @author shkstart
     * @date 2019年2月12日上午12:03:50
     */
    public static void readReturn() {
        System.out.print("按回车键继续...");
        readKeyBoard(100, true);
    }

    /**
     * 
     * @Description 该方法从键盘读取一个长度不超过2位的整数，并将其作为方法的返回值。
     * @author shkstart
     * @date 2019年2月12日上午12:04:04
     * @return
     */
    public static int readInt() {
        int n;
        for (;;) {
            String str = readKeyBoard(2, false);
            try {
                n = Integer.parseInt(str);
                break;
            } catch (NumberFormatException e) {
                System.out.print("数字输入错误，请重新输入：");
            }
        }
        return n;
    }

    /**
     * 
     * @Description 从键盘读取‘Y’或’N’，并将其作为方法的返回值。
     * @author shkstart
     * @date 2019年2月12日上午12:04:45
     * @return
     */
    public static char readConfirmSelection() {
        char c;
        for (;;) {
            String str = readKeyBoard(1, false).toUpperCase();
            c = str.charAt(0);
            if (c == 'Y' || c == 'N') {
                break;
            } else {
                System.out.print("选择错误，请重新输入：");
            }
        }
        return c;
    }

    private static String readKeyBoard(int limit, boolean blankReturn) {
        String line = "";

        while (scanner.hasNextLine()) {
            line = scanner.nextLine();
            if (line.length() == 0) {
                if (blankReturn)
                    return line;
                else
                    continue;
            }

            if (line.length() < 1 || line.length() > limit) {
                System.out.print("输入长度（不大于" + limit + "）错误，请重新输入：");
                continue;
            }
            break;
        }

        return line;
    }
}

🎈View

✨TeamView.java

package src.SUMMER_java.project_3.view;

import src.SUMMER_java.project_3.domain.Employee;
import src.SUMMER_java.project_3.domain.Programmer;
import src.SUMMER_java.project_3.service.NameListService;
import src.SUMMER_java.project_3.service.TSUtility;
import src.SUMMER_java.project_3.service.TeamException;
import src.SUMMER_java.project_3.service.TeamService;

public class TeamView {
    // +enterMainMenu(): void
    // - listAllEmployees(): void
    // - getTeam():void
    // - addMember(): void
    // - deleteMember(): void
    // + main(args: String[]) : void
    // - listSvc: NameListService = new NameListService()
    // - teamSvc: TeamService = new TeamService()
    public void enterMainMenu() {
        boolean loopFlag = true;
        listAllEmployees();
        char key = 0;
        while (loopFlag) {
            System.out.print("1-团队列表  2-添加团队成员  3-删除团队成员 4-退出   请选择(1-4)：");
            key = TSUtility.readMenuSelection();
            if (key != '1') // key =='1' show Teamlist key!= '1' show allEmployeeList
                listAllEmployees();
            switch (key) {
                case '1':
                    listTeam();
                    break;

                case '2':
                    addMember();
                    break;

                case '3':
                    deleteMember();
                    break;

                case '4':
                    loopFlag = Out();
                    break;

            }
        }
        // System.out.println("ID\t姓名\t年龄\t年龄\t年龄\t年龄\t年龄\t年龄\t");

    }

    public void listAllEmployees() {
        System.out.println("\n-------------------------------开发团队调度软件--------------------------------\n");
        Employee[] emps = listSvc.getAllEmployees();
        if (emps == null || emps.length == 0) {
            System.out.println("没有客户记录！");
        } else {
            System.out.println("ID\t姓名\t年龄\t工资\t职位\t状态\t奖金\t股票\t领用设备");
        }

        for (Employee e : emps) {
            System.out.println(" " + e);
        }
        System.out.println("-------------------------------------------------------------------------------");

    }

    private void listTeam() {
        System.out.println("\n--------------------团队成员列表---------------------\n");
        Programmer[] team = teamSvc.getTeam();
        if (team.length == 0) {
            System.out.println("开发团队目前没有成员！");
        } else {
            System.out.println("TID/ID\t姓名\t年龄\t工资\t职位\t奖金\t股票");
        }
        for (Programmer p : team) {
            System.out.println(" " + p.getDetailsForTeam());
        }
        System.out.println("-----------------------------------------------------");
    }

    private void addMember() {
        System.out.println("---------------------添加成员---------------------");

        System.out.println("请输入添加成员的ID");
        int ID = TSUtility.readInt();
        Employee emp;
        try {
            emp = listSvc.getEmployees(ID);
            teamSvc.addMember(emp);

        } catch (Exception e) {
            System.out.println("添加失败，原因: " + e.getMessage());
        }
        TSUtility.readReturn();

    }

    private void deleteMember() {
        System.out.println("---------------------删除成员---------------------");
        Programmer[] team = teamSvc.getTeam();
        if (team.length == 0) {
            System.out.println("开发团队目前没有成员！");
            return;
        }
        System.out.print("请输入要删除员工的TID：");
        int TID = TSUtility.readInt();
        System.out.print("确认是否删除(Y/N)：");
        char yn = TSUtility.readConfirmSelection();
        if (yn == 'N')
            return;
        try {
            teamSvc.removeMember(TID);
            System.out.println("删除成功");
        } catch (TeamException e) {
            System.out.println("删除失败，原因: " + e.getMessage());

        }
    }

    /**
     * @return boolean
     * @Decision if confirm to out the System
     */
    private boolean Out() {
        System.out.println("是否要退出? (Y or N)？");
        char select = TSUtility.readConfirmSelection();
        if (select == 'Y')
            return false;
        return true;
    }

    private NameListService listSvc = new NameListService();
    TeamService teamSvc = new TeamService();

    /**
     * 主菜单
     * 
     * @param args
     */
    public static void main(String[] args) {
        TeamView m = new TeamView();
        m.enterMainMenu();
    }
}