90 lines
2.3 KiB
Java
90 lines
2.3 KiB
Java
package com.org.flashsalesystem.entity;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import javax.persistence.*;
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import javax.validation.constraints.DecimalMin;
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import javax.validation.constraints.Min;
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import javax.validation.constraints.NotNull;
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import java.math.BigDecimal;
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import java.time.LocalDateTime;
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/**
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* 秒杀活动实体类
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* 对应数据库flash_sales表
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*/
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@Entity
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@Table(name = "flash_sales")
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@Data
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@NoArgsConstructor
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@AllArgsConstructor
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public class FlashSale {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@NotNull(message = "商品ID不能为空")
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@Column(name = "product_id", nullable = false)
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private Long productId;
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@NotNull(message = "秒杀价格不能为空")
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@DecimalMin(value = "0.01", message = "秒杀价格必须大于0")
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@Column(name = "flash_price", nullable = false, precision = 10, scale = 2)
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private BigDecimal flashPrice;
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@Min(value = 1, message = "秒杀库存必须大于0")
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@Column(name = "flash_stock", nullable = false)
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private Integer flashStock;
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@NotNull(message = "开始时间不能为空")
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@Column(name = "start_time", nullable = false)
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private LocalDateTime startTime;
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@NotNull(message = "结束时间不能为空")
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@Column(name = "end_time", nullable = false)
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private LocalDateTime endTime;
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/**
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* 活动状态：1-未开始，2-进行中，3-已结束
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*/
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@Column(nullable = false)
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private Integer status = 1;
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@Column(name = "created_at", nullable = false, updatable = false)
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private LocalDateTime createdAt;
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@ManyToOne(fetch = FetchType.LAZY)
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@JoinColumn(name = "product_id", insertable = false, updatable = false)
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private Product product;
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@PrePersist
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protected void onCreate() {
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createdAt = LocalDateTime.now();
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}
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/**
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* 检查活动是否已开始
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*/
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public boolean isStarted() {
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return LocalDateTime.now().isAfter(startTime);
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}
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/**
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* 检查活动是否已结束
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*/
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public boolean isEnded() {
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return LocalDateTime.now().isAfter(endTime);
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}
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/**
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* 检查活动是否正在进行中
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*/
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public boolean isActive() {
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LocalDateTime now = LocalDateTime.now();
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return now.isAfter(startTime) && now.isBefore(endTime) && status == 2;
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}
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}
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