项目三——开发团队调度软件

一、需求说明

二、软件设计结构

三、设计

1、创建项目基本组件

• 1）键盘访问的实现

package com.atguigu.team.view;

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:[email protected]
 * @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;
    }
}

• 2）所需数据的实现

package com.atguigu.team.service;

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EQIPMENTS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, type, name
    public static final String[][] EQIPMENTS = {
        {},
        {"22", "联想T4", "6000"},
        {"21", "戴尔", "NEC17寸"},
        {"21", "戴尔", "三星 17寸"},
        {"23", "激光", "佳能 2900"},
        {"21", "华硕", "三星 17寸"},
        {"21", "华硕", "三星 17寸"},
        {"23", "针式", "爱普生20K"},
        {"22", "惠普m6", "5800"},
        {"21", "戴尔", "NEC 17寸"},
        {"21", "华硕","三星 17寸"},
        {"22", "惠普m6", "5800"}
    };
}

2、Equipment接口及其子类的设计

package com.atguigu.team.domain;

public interface Equipment {
	public abstract String getDescription();
}

package com.atguigu.team.domain;


public class NoteBook implements Equipment{
	private String model;
	private double price;


	public NoteBook() {
		super();
	}
	
	public NoteBook(String model, double price) {
		this.model = model;
		this.price = price;
	}


	public String getModel() {
		return model;
	}

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

	public double getPrice() {
		return price;
	}

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

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


package com.atguigu.team.domain;

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

	public PC() {
		super();
	}

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

	public String getModel() {
		return model;
	}

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

	public String getDisplay() {
		return display;
	}

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

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

package com.atguigu.team.domain;

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

	public Printer() {
		super();
	}

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

	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;
	}

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

package com.atguigu.team.domain;

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


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


	public int getId() {
		return id;
	}


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


	public String getName() {
		return name;
	}


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


	public int getAge() {
		return age;
	}


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


	public double getSalary() {
		return salary;
	}


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

	public String getDetails() {
		return id+"\t"+name+"\t"+age+"\t"+salary;
	}
	@Override
	public String toString() {
		return getDetails();
	}
}


package com.atguigu.team.domain;

import com.atguigu.team.service.Status;

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

	private int memberId;// 记录成员加入开发团队后在团队中的ID
	private Status status = Status.FREE;
	private Equipment equipment;// 成员领用新设备

	public Programmer() {

	}

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

	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;
	}

}

package com.atguigu.team.domain;

public class Desinger extends Programmer {
	@Override
	public String toString() {
		return super.getDetails() + "\t设计师\t" + getStatus() + "\t" + bonus + "\t\t" + getEquipment();
	}

	private double bonus;

	public Desinger() {
	}

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

	public double getBonus() {
		return bonus;
	}

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

}

package com.atguigu.team.domain;

public class Architect extends Desinger {

	private int stock;

	public Architect() {
	}

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

	public int getStock() {
		return stock;
	}

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

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

}

• Status

package com.atguigu.team.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;
	}	
}

3、实现Service包中的类(重要)

NameListService

package com.atguigu.team.service;

import com.atguigu.team.domain.Architect;
import com.atguigu.team.domain.Desinger;
/**
 * 
 */
import com.atguigu.team.domain.Employee;
import com.atguigu.team.domain.Equipment;
import com.atguigu.team.domain.NoteBook;
import com.atguigu.team.domain.PC;
import com.atguigu.team.domain.Printer;
import com.atguigu.team.domain.Programmer;
import static com.atguigu.team.service.Data.*;

public class NameListService {
	private Employee[] employees;

	public NameListService() {
		employees = new Employee[EMPLOYEES.length];
		//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
		
		
		for(int i=0;i< EMPLOYEES.length;i++) {
			//获取员工类型
			int type = Integer.parseInt(EMPLOYEES[i][0]);
			//获取Employee的基本信息
			int id = Integer.parseInt(Data.EMPLOYEES[i][1]);
			String name = Data.EMPLOYEES[i][2];
			int age = Integer.parseInt(Data.EMPLOYEES[i][3]);
			Double salary =  Double.parseDouble(Data.EMPLOYEES[i][4]);
			Equipment e ;
			//根据不同的类型来new对象
			switch(type) {
			case EMPLOYEE:
				employees[i] = new Employee(id, name, age, salary);
				break;
			case PROGRAMMER:
				e = createEquipment(i);
				employees[i] = new Programmer(Integer.parseInt(EMPLOYEES[i][1]), EMPLOYEES[i][2], Integer.parseInt(EMPLOYEES[i][3]), Double.parseDouble(EMPLOYEES[i][4]), e);
				break;
			case DESIGNER:
				e = createEquipment(i);
				employees[i] = new Desinger(id, name, age, salary, e, Double.parseDouble(EMPLOYEES[i][5]));
				break;
			case ARCHITECT:
				e = createEquipment(i);
				employees[i] = new Architect(id, name, age, salary, e, Double.parseDouble(EMPLOYEES[i][5]), Integer.parseInt(EMPLOYEES[i][6]));
				break;
			}
		}
	}

	/**
	 * 
	 * @Descripsion 获取指定i位置上的员工的设备，并创建对象
	 * @author JingCheng
	 * @date 2020年12月8日下午10:00:41
	 * @param i
	 * @return
	 */
	private Equipment createEquipment(int i) {
		// 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
		int type = Integer.parseInt(EQUIPMENTS[i][0]);

		switch (type) {
		case PC: //21
			return new PC(Data.EQUIPMENTS[i][1], Data.EQUIPMENTS[i][2]);
		case NOTEBOOK: //22
			return new NoteBook(Data.EQUIPMENTS[i][1], Double.parseDouble(Data.EQUIPMENTS[i][2]));
		case PRINTER: //23
			return new Printer(Data.EQUIPMENTS[i][1], Data.EQUIPMENTS[i][2]);
		}
		return null;
	}

	/**
	 * 
	 * @Descripsion 获取当前所有员工
	 * @author JingCheng
	 * @date 2020年12月8日下午10:26:07
	 * @return
	 */
	public Employee[] getAllEmployees() {
		return employees;
	}

	/**
	 * 
	 * @Descripsion 获取指定ID的员工的信息
	 * @author JingCheng
	 * @date 2020年12月8日下午10:26:31
	 * @param id
	 * @return
	 * @throws TeamException
	 */
	public Employee getEmployee(int id) throws TeamException {
		for(int i=0;i<employees.length;i++) {
			if(employees[i].getId()==id) {
				return employees[i];
			}
		}
		throw new TeamException("添加失败，不存在这个员工");
	}
}

TeamSeivice

package com.atguigu.team.service;

import org.hamcrest.core.IsInstanceOf;
import org.hamcrest.core.IsNot;

import com.atguigu.team.domain.Architect;
import com.atguigu.team.domain.Desinger;
import com.atguigu.team.domain.Employee;
import com.atguigu.team.domain.Programmer;

import sun.jvm.hotspot.debugger.SymbolLookup;

/**
 * 
 * @Descripsion 开发团队成员的管理、添加、删除
 * @author JingCheng
 * @Email [email protected]
 * @Version
 * @company University of Science and Technology Beijing
 * @date 2020年12月9日下午2:44:51
 */
public class TeamService {
	private static int counter = 1;// 给memberId赋值使用
	private final int MAX_MEMBER = 5;// 限制团队最大的人数
	private Programmer[] team = new Programmer[MAX_MEMBER];// 保存开发团队成员
	private int total = 0;// 记录开发团队实际人数

	public TeamService() {
	}

	/**
	 * 
	 * @Descripsion 获取开发团队的全部成员
	 * @author JingCheng
	 * @date 2020年12月9日下午2:55:31
	 * @return
	 */
	public Programmer[] getTeam() {
		Programmer[] teamNow = new Programmer[total];
		for (int i = 0; i < total; i++) {
			teamNow[i] = team[i];
		}
		return teamNow;
	}

	/**
	 * 
	 * @Descripsion 向开发团队中
	 * @author JingCheng
	 * @date 2020年12月9日下午2:55:52
	 * @param e
	 * @throws TeamException
	 */
	public void addMember(Employee e) throws TeamException {
		if (total >= MAX_MEMBER) {
			throw new TeamException("成员已满，无法添加！");
		}

		if (!(e instanceof Programmer)) {
			throw new TeamException("该成员不是开发人员，无法添加！");
		}

		if (isExist(e)) {
			throw new TeamException("该成员已在本开发团队中，无法添加！");
		}

		Programmer e1 = (Programmer) e;
		// 注意：判断字符串内容是否相同用.equals()
		if ("BUSY".equals(e1.getStatus().getNAME())) {
			throw new TeamException("该成员已是某团队成员，无法添加！");
		}

		if ("VOCATION".equals(e1.getStatus().getNAME())) {
			throw new TeamException("该成员正在休假，无法添加！");
		}

		int numOfArch = 0, numOfDes = 0, numOfPro = 0;
		// 判断队伍中的不同类型的个数
		for (int i = 0; i < total; i++) {
			if (team[i] instanceof Architect) {
				numOfArch++;
			} else if (team[i] instanceof Desinger) {
				numOfDes++;
			} else {
				numOfPro++;
			}
		}

		if (e1 instanceof Architect) {
			if (numOfArch >= 1) {
				throw new TeamException("团队只能有一名架构师，无法添加！");
			}
		} else if (e1 instanceof Desinger) {
			if (numOfDes >= 2) {
				throw new TeamException("团队只能有2名设计，无法添加！");
			}
		} else if (e1 instanceof Desinger) {
			if (numOfPro >= 3) {
				throw new TeamException("团队只能有3名程序员，无法添加！");
			}
		}

		// 将e1添加到team中
		team[total++] = e1;
		// 将e1状态改为BUSY
		e1.setStatus(Status.BUSY);
		// 修改MemberId
		e1.setMemberId(counter++);
	}

	/**
	 * 
	 * @Descripsion 判断成员是否在已有的项目中
	 * @author JingCheng
	 * @date 2020年12月9日下午3:53:01
	 * @param e
	 * @return
	 */
	public boolean isExist(Employee e) {
		for (int i = 0; i < total; i++) {
			if (e.getId() == getTeam()[i].getId()) {
				return true;
			}
		}
		return false;
	}

	/**
	 * 
	 * @Descripsion 从团队当中删除成员
	 * @author JingCheng
	 * @date 2020年12月9日下午4:49:22
	 * @param memberId
	 * @throws TeamException
	 */
	public void removeMember(int memberId) throws TeamException {
		int i = 0;
		boolean flag = true;
		for (; i < total; i++) {
			if (team[i].getMemberId() == memberId) {
				// 修改状态
				team[i].setStatus(Status.FREE);
				flag = false;
				break;
			}
		}
		if (flag) {
			throw new TeamException("团队没有该成员，删除失败！");
		}
		// 后一个元素覆盖前一个元素，实现删除操作
		for (int j = i + 1; j < total; j++) {
			team[j - 1] = team[j];
		}
		team[--total] = null;

	}
}

4、TeamView

package com.atguigu.team.view;

import com.atguigu.team.domain.Employee;
import com.atguigu.team.domain.Programmer;
import com.atguigu.team.service.NameListService;
import com.atguigu.team.service.TeamException;
import com.atguigu.team.service.TeamService;

public class TeamView {

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

	public void enterMainMenu() {
		boolean flag = true;
		char menu = 0;
		while (flag) {
			if(menu != '1') {
				listAllEmployees();}
			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)：");
			menu = TSUtility.readMenuSelection();
			switch (menu) {
			case '1':
				getTeam();
				break;
			case '2':
				addMember();
				break;
			case '3':
				deleteMember();
				break;
			case '4':
				System.out.println("是否确认退出(y/n)");
				char isExit = TSUtility.readConfirmSelection();
				if(isExit == 'Y') {
					flag = false;
					}
				break;
			}

		}
	}

	/**
	 * 
	 * @Descripsion 以表格形式列出公司所有成员
	 * @author JingCheng
	 * @date 2020年12月9日下午7:43:47
	 */
	private void listAllEmployees() {
		System.out.println("\n-------------------------------开发团队调度软件--------------------------------\n");
		Employee[] employees = listSvc.getAllEmployees();
		if(employees==null||employees.length == 0) {
			System.out.println("没有员工信息");
		}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 (int i = 0; i < employees.length; i++) {
				System.out.println(employees[i]);
			}
		}
		System.out.println("-------------------------------------------------------------------------------");
	}

	/**
	 * 
	 * @Descripsion 显示团队成员列表操作
	 * @author JingCheng
	 * @date 2020年12月9日下午7:44:15
	 */
	private void getTeam() {
		System.out.print("\n-------------------------------团队成员列表--------------------------------\n");
		Programmer[] team = teamSvc.getTeam();
		if(team == null||team.length == 0) {
			System.out.println("开发团队目前没有成员信息");
		}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 (int i = 0; i < team.length; i++) {
				System.out.println(team[i].getDetailsForTeam());
			}
		}
		System.out.println("-------------------------------------------------------------------------------");
		
	}

	/**
	 * 
	 * @Descripsion 实现添加成员操作
	 * @author JingCheng
	 * @date 2020年12月9日下午7:45:02
	 */
	private void addMember() {
		System.out.print("\n-------------------------------添加成员--------------------------------\n");
		System.out.println("请输入要添加员工的id：");
		int id = TSUtility.readInt();
		Employee emp = null;
		try {
			emp = listSvc.getEmployee(id);
		} catch (TeamException e) {
			e.getMessage();
		}
		try {
			teamSvc.addMember(emp);
			System.out.println("添加成功");
		} catch (TeamException e) {
			System.out.println(e.getMessage());
			
		}
		TSUtility.readReturn();
		
	}

	/**
	 * 
	 * @Descripsion 实现删除成员操作
	 * @author JingCheng
	 * @date 2020年12月9日下午7:44:35
	 */
	private void deleteMember() {
		System.out.print("\n-------------------------------删除成员--------------------------------\n");
		System.out.println("请输入要删除员工的TID：");
		int id = TSUtility.readInt();
		System.out.println("是否确认删除(y/n)");
		char isDelete = TSUtility.readConfirmSelection();
		if(isDelete=='Y') {
			try {
				teamSvc.removeMember(id);
				System.out.println("删除成功");
			} catch (TeamException e) {
				System.out.println("删除失败："+e.getMessage());
			}
			TSUtility.readReturn();
		}
	}

	public static void main(String[] args) {
		TeamView view = new TeamView();
		view.enterMainMenu();
	}
}