3 创建商品实体类：Product1 定义属性：① 商品编号：spID② 商品名称 spName③ 商品价格：spPrice④ 商品描述：spDesc⑤ 商品库存：spKucun⑥ 商品上架时间：spTime2 对属性进行封装3 构造方法1：无参4 构造方法2：有参-所有属性5 定义方法：info——格式输出商品的基本信息

public class Product { private String spID; private String spName; private double spPrice; private String spDesc; private int spKucun; private LocalDateTime spTime;

public Product() {}

public Product(String spID, String spName, double spPrice, String spDesc, int spKucun, LocalDateTime spTime) {
    this.spID = spID;
    this.spName = spName;
    this.spPrice = spPrice;
    this.spDesc = spDesc;
    this.spKucun = spKucun;
    this.spTime = spTime;
}

public String getSpID() {
    return spID;
}

public void setSpID(String spID) {
    this.spID = spID;
}

public String getSpName() {
    return spName;
}

public void setSpName(String spName) {
    this.spName = spName;
}

public double getSpPrice() {
    return spPrice;
}

public void setSpPrice(double spPrice) {
    this.spPrice = spPrice;
}

public String getSpDesc() {
    return spDesc;
}

public void setSpDesc(String spDesc) {
    this.spDesc = spDesc;
}

public int getSpKucun() {
    return spKucun;
}

public void setSpKucun(int spKucun) {
    this.spKucun = spKucun;
}

public LocalDateTime getSpTime() {
    return spTime;
}

public void setSpTime(LocalDateTime spTime) {
    this.spTime = spTime;
}

public void info() {
    System.out.println("商品编号：" + spID);
    System.out.println("商品名称：" + spName);
    System.out.println("商品价格：" + spPrice);
    System.out.println("商品描述：" + spDesc);
    System.out.println("商品库存：" + spKucun);
    System.out.println("商品上架时间：" + spTime.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
}