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今天学习了包管理，理解访问权限，取消硬编码，使用Config类

ScreenShot_2026-10-03_000215_806.png

主类，创建不同实例

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package cn.com.d99714.smart.service;

import cn.com.d99714.smart.common.Config;
import cn.com.d99714.smart.entity.*;

public class SmartHomeTest {
    public static void main(String[] args) {
        //  厂家
        Company vendor = new Company("张经理", "13829871635", "视声智能", "广州市黄埔区", "KNX全屋智能/灯光/安防");
        //  业主
        Person client1 = new Customer("赵今麦", "15138473848", "上海市静安区", 533);
        //  商家
        Person client2 = new Company("李经理", "13150432864", "杜亚窗帘", "杭州市拱墅区", "智能窗帘/智能门锁");
        //  报价单：厂家给业主
        SmartHomeQuotation quote1 = new SmartHomeQuotation(
                "20260001-000001",
                "2026-10-02 16:35:11",
                "赵女士静安府全屋智能",
                client1,
                vendor,
                35800.0, 5800.0, 6500.0, 4200.0, 2000.0
        );
        //  报价单：厂家给商家
        SmartHomeQuotation quote2 = new SmartHomeQuotation(
                "20260001-000002",
                "2026-10-02 16:37:20",
                "杜亚展厅智能改造",
                client2,
                vendor,
                28000.0, 3500.0, 4000.0, 2500.0, 1500.0
        );
        //  打印报价单
        System.out.println(quote1);
        System.out.println();
        System.out.println(quote2);
        // 打印完整客户信息
        System.out.println();
        System.out.println("======= 完整客户信息（点击查看）=======");
        System.out.println(quote1.getClientFullInfo());
        System.out.println(quote2.getClientFullInfo());
    }
}

Config类，final类，禁止继承，private构造方法，禁止实例化

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package cn.com.d99714.smart.common;

import java.time.format.DateTimeFormatter;

public final class Config { //  final类，禁止继承
    private Config() {
    }  //  private构造方法，禁止实例化

    //  校验规则组
    public static final String PHONE_REGEX = "^1[3-9]\\d{9}$";
    public static final String ERROR_PHONE_FORMAT = "手机号码格式不正确，已置空！";

    public static final int MIN_WORK_YEAR = 0;
    public static final int MAX_WORK_YEAR = 70;
    public static final String ERROR_WORK_YEAR = "工龄0-70，其他无效！已置0";

    public static final double MIN_SCORE = 0.0;
    public static final double MAX_SCORE = 5.0;
    public static final String ERROR_SCORE = "评分只能0-5，整数或一位小数！已置0";

    public static final double MIN_HOUSE_AREA = 0.0;
    public static final double MAX_HOUSE_AREA = 5000.0;
    public static final String ERROR_HOUSE_AREA = "面积大于0小于5000，整数或一位小数！";

    // ===== 格式规则组 =====
    public static final DateTimeFormatter DATE_TIME_INPUT_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    public static final DateTimeFormatter DATE_TIME_DISPLAY_FORMATTER = DateTimeFormatter.ofPattern("yyyy年MM月dd日 HH:mm:ss");
    public static final String AMOUNT_FORMAT = "%,.2f";

    // ===== 报价单标识组 =====
    public static final String QUOTATION_PREFIX = "Q-SM-";
    public static final String LINE_CHAR = "-";
    public static final int LINE_TITLE_REPEAT_COUNT = 50;
    public static final int LINE_REPEAT_COUNT = 56;
    public static final String VERSION = "V1.0";

    // ===== 显示标签组（预埋多语言，V1.1 进 i18n 表）=====
    public static final String QUOTATION_TITLE = "智能家居报价单";
    public static final String LABEL_QUOTATION_NO = "报价编号：";
    public static final String LABEL_QUOTATION_DATE = "报价日期：";
    public static final String LABEL_VENDOR = "报价单位：";
    public static final String LABEL_PROJECT_NAME = "项目名称：";
    public static final String LABEL_CLIENT_INFO = "用户信息：";
    public static final String LABEL_TOTAL_AMOUNT = "项目金额：";
    public static final String LABEL_DETAIL_PREFIX = "其中：";
    public static final String LABEL_DEVICE_COST = "设备金额：";
    public static final String LABEL_MATERIAL_COST = "材料金额：";
    public static final String LABEL_INSTALL_COST = "安装金额：";
    public static final String LABEL_DEBUG_COST = "调试金额：";
    public static final String LABEL_OTHER_COST = "其他金额：";
    public static final String TAG_CUSTOMER = "（业主）";
    public static final String TAG_COMPANY = "（公司）";
}

SmartHomeQuotation业务类，多态，向上/向下转型

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package cn.com.d99714.smart.entity;

import cn.com.d99714.smart.common.Config;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class SmartHomeQuotation {
    private String quotationNo = "";
    private String quotationDate = "";
    private String projectName = "";
    private Person client;
    private Company vendor;
    private double deviceCost = 0.0;
    private double materialCost = 0.0;
    private double installCost = 0.0;
    private double debugCost = 0.0;
    private double otherCost = 0.0;

    public SmartHomeQuotation() {
    }

    public SmartHomeQuotation(String quotationNo, String quotationDate, String projectName, Person client, Company vendor, double deviceCost, double materialCost, double installCost, double debugCost, double otherCost) {
        this.setQuotationNo(quotationNo);
        this.setQuotationDate(quotationDate);
        this.setProjectName(projectName);
        this.setClient(client);
        this.setVendor(vendor);
        this.setDeviceCost(deviceCost);
        this.setMaterialCost(materialCost);
        this.setInstallCost(installCost);
        this.setDebugCost(debugCost);
        this.setOtherCost(otherCost);
    }

    public void setQuotationNo(String quotationNo) {
        this.quotationNo = quotationNo;
    }

    public void setQuotationDate(String quotationDate) {
        this.quotationDate = quotationDate;
    }

    public void setProjectName(String projectName) {
        this.projectName = projectName;
    }

    public void setClient(Person client) {
        this.client = client;
    }

    public void setVendor(Company vendor) {
        this.vendor = vendor;
    }

    public void setDeviceCost(double deviceCost) {
        this.deviceCost = deviceCost;
    }

    public void setMaterialCost(double materialCost) {
        this.materialCost = materialCost;
    }

    public void setInstallCost(double installCost) {
        this.installCost = installCost;
    }

    public void setDebugCost(double debugCost) {
        this.debugCost = debugCost;
    }

    public void setOtherCost(double otherCost) {
        this.otherCost = otherCost;
    }

    public String getQuotationNo() {

        return (Config.QUOTATION_PREFIX + this.quotationNo);
    }

    public String getQuotationDate() {
        LocalDateTime dateTime = LocalDateTime.parse(this.quotationDate, Config.DATE_TIME_INPUT_FORMATTER);
        return dateTime.format(Config.DATE_TIME_DISPLAY_FORMATTER);
    }

    public String getProjectName() {
        return this.projectName;
    }

    public Person getClient() {
        return this.client;
    }

    public Company getVendor() {
        return this.vendor;
    }

    public double getDeviceCost() {
        return this.deviceCost;
    }

    public double getMaterialCost() {
        return this.materialCost;
    }

    public double getInstallCost() {
        return this.installCost;
    }

    public double getDebugCost() {
        return this.debugCost;
    }

    public double getOtherCost() {
        return this.otherCost;
    }

    public String getClientDisplay() {
        if (client instanceof Customer) {
            Customer cu = (Customer) client;
            return Config.TAG_CUSTOMER + cu.getName();
        } else if (client instanceof Company) {
            Company co = (Company) client;
            return Config.TAG_COMPANY + co.getCompanyName();
        }
        return "";
    }

    public String getClientFullInfo() {
        if (client instanceof Customer) {
            Customer cu = (Customer) client;
            return Config.TAG_CUSTOMER + "电话：" + cu.getPhone() + "，地址：" + cu.getHouseAddress() + "，房屋面积：" + cu.getHouseArea() + "m²";
        } else if (client instanceof Company) {
            Company co = (Company) client;
            return Config.TAG_COMPANY + "联系人：" + co.getName() + "，电话：" + co.getPhone() + "，地址：" + co.getAddress();
        }
        return "";
    }

    @Override
    public String toString() {
        double totalAmount = getDeviceCost() + getMaterialCost() + getInstallCost() + getDebugCost() + getOtherCost();
        StringBuilder sb = new StringBuilder();

        //  静态拼接报价单的头
        sb.append(Config.LINE_CHAR.repeat(Config.LINE_TITLE_REPEAT_COUNT)).append(Config.QUOTATION_TITLE).append(Config.LINE_CHAR.repeat(Config.LINE_TITLE_REPEAT_COUNT)).append("\n");
        sb.append(String.format(Config.LABEL_QUOTATION_NO + "%s%n", getQuotationNo()));
        sb.append(String.format(Config.LABEL_QUOTATION_DATE + "%s%n", getQuotationDate()));
        sb.append(String.format(Config.LABEL_VENDOR + "%s%n", vendor.getCompanyName()));
        sb.append(String.format(Config.LABEL_PROJECT_NAME + "%s%n", getProjectName()));
        sb.append(String.format(Config.LABEL_CLIENT_INFO + "%s%n", getClientDisplay()));

        //  动态拼接报价单金额（按照总金额格式化后的长度右对齐）
        String totalStr = String.format(Config.AMOUNT_FORMAT, totalAmount);
        int width = totalStr.length();

        sb.append(String.format(Config.LABEL_TOTAL_AMOUNT + "%," + width + ".2f" + " 元%n", totalAmount));
        sb.append(Config.LABEL_DETAIL_PREFIX + "\n");
        sb.append(String.format(Config.LABEL_DEVICE_COST + "%," + width + ".2f" + " 元%n", getDeviceCost()));
        sb.append(String.format(Config.LABEL_MATERIAL_COST + "%," + width + ".2f" + " 元%n", getMaterialCost()));
        sb.append(String.format(Config.LABEL_INSTALL_COST + "%," + width + ".2f" + " 元%n", getInstallCost()));
        sb.append(String.format(Config.LABEL_DEBUG_COST + "%," + width + ".2f" + " 元%n", getDebugCost()));
        sb.append(String.format(Config.LABEL_OTHER_COST + "%," + width + ".2f" + " 元%n", getOtherCost()));
        sb.append(Config.LINE_CHAR.repeat(Config.LINE_REPEAT_COUNT * 2)).append("\n");

        return sb.toString();
    }
}

Person父类

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package cn.com.d99714.smart.entity;

import cn.com.d99714.smart.common.Config;

public class Person {
    private String name = "";
    private String phone = "";

    public Person() {
    }

    public Person(String name, String phone) {
        setName(name);
        setPhone(phone);
    }

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

    public void setPhone(String phone) {
        if (phone != null && phone.matches(Config.PHONE_REGEX)) {
            this.phone = phone;
        } else {
            System.out.println(Config.ERROR_PHONE_FORMAT);
            this.phone = "";
        }
    }

    public String getName() {
        return this.name;
    }

    public String getPhone() {
        return this.phone;
    }

    @Override
    public String toString() {
        return "姓名：" + this.getName() + "，电话：" + this.getPhone();
    }

    public String introduce() {
        return "";
    }
}

Company实体类，继承Person

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package cn.com.d99714.smart.entity;

public class Company extends Person {
    private String companyName = "";
    private String address = "";
    private String serviceScope = "";

    public Company() {
    }

    public Company(String name, String phone, String companyName, String address, String serviceScope) {
        super(name, phone);
        setCompanyName(companyName);
        setAddress(address);
        setServiceScope(serviceScope);
    }

    public void setCompanyName(String companyName) {
        this.companyName = companyName;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public void setServiceScope(String serviceScope) {
        this.serviceScope = serviceScope;
    }

    public String getCompanyName() {
        return this.companyName;
    }

    public String getAddress() {
        return this.address;
    }

    public String getServiceScope() {
        return this.serviceScope;
    }

    @Override
    public String toString() {
        return "【公司】联系人：" + this.getName() + "，电话：" + this.getPhone() + "，品牌：" + this.getCompanyName() + "，地址：" + this.getAddress() + "，服务范围：" + this.getServiceScope();
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("您好，我们是").append(this.getCompanyName()).append("，公司位于").append(this.getAddress()).append("，主营").append(this.getServiceScope()).append("，联系人").append(this.getName());
        return sb.toString();
    }
}

Customer实体类，继承Person类

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package cn.com.d99714.smart.entity;

import cn.com.d99714.smart.common.Config;

public class Customer extends Person {
    private String houseAddress = "";
    private double houseArea = 0.0;

    public Customer() {
    }

    public Customer(String name, String phone, String houseAddress, double houseArea) {
        super(name, phone);
        setHouseAddress(houseAddress);
        setHouseArea(houseArea);
    }

    public void setHouseAddress(String houseAddress) {
        this.houseAddress = houseAddress;
    }

    public void setHouseArea(double houseArea) {
        if (houseArea > Config.MIN_HOUSE_AREA && houseArea < Config.MAX_HOUSE_AREA) {
            this.houseArea = houseArea;

        } else {
            System.out.println(Config.ERROR_HOUSE_AREA);
            this.houseArea = 0.0;
        }
    }

    public String getHouseAddress() {
        return this.houseAddress;
    }

    public double getHouseArea() {
        return this.houseArea;
    }

    @Override
    public String toString() {
        return "【业主】：" + this.getName() + "，" + this.getPhone() + "，" + this.getHouseAddress() + "，" + this.getHouseArea() + "m²";
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("业主").append(this.getName()).append(",房屋面积").append(this.getHouseArea()).append("m²，位于").append(this.getHouseAddress()).append("，需要智能家居报价。");
        return sb.toString();
    }
}

Worker实体类，继承Person类

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package cn.com.d99714.smart.entity;

import cn.com.d99714.smart.common.Config;

public class Worker extends Person {
    private String jobType = "";
    private int workYear = 0;
    private double score = 0.0;

    public Worker() {
    }

    public Worker(String name, String phone, String jobType, int workYear, double score) {
        super(name, phone);
        setJobType(jobType);
        setWorkYear(workYear);
        setScore(score);
    }

    public void setJobType(String jobType) {
        this.jobType = jobType;
    }

    public void setWorkYear(int workYear) {
        if (workYear >= Config.MIN_WORK_YEAR && workYear <= Config.MAX_WORK_YEAR) {
            this.workYear = workYear;

        } else {
            System.out.println(Config.ERROR_WORK_YEAR);
            this.workYear = 0;
        }
    }

    public void setScore(double score) {
        if (score >= Config.MIN_SCORE && score <= Config.MAX_SCORE) {
            this.score = score;

        } else {
            System.out.println(Config.ERROR_SCORE);
            this.score = 0.0;
        }
    }

    public String getJobType() {
        return this.jobType;
    }

    public int getWorkYear() {
        return this.workYear;
    }

    public double getScore() {
        return this.score;
    }

    @Override
    public String toString() {
        return "【师傅】：" + this.getName() + "，" + this.getPhone() + "，" + this.getJobType() + "，" + this.getWorkYear() + "，" + this.getScore();
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("我是").append(this.getJobType()).append(",从业").append(this.getWorkYear()).append("年，评分").append(this.getScore()).append("，电话").append(this.getPhone());
        return sb.toString();
    }
}
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