通知

src/main/java/com/yunhai/campusnotice/entity/NoticeRead.java

@@ -0,0 +1,71 @@
+package com.yunhai.campusnotice.entity;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+
+/**
+ * 通知阅读记录（懒标记）。对应原 .NET Notify_ReceiveList 的「逐用户阅读状态」语义，
+ * 但仅在读者首次查看时落库，避免发通知时预插全员。
+ * <p>
+ * 唯一约束 (notice_id, reader_account)：同一用户对同一通知只记一条已读。
+ */
+@NoArgsConstructor
+@Data
+@Entity
+@Table(name = "notice_read",
+        uniqueConstraints = @UniqueConstraint(
+                name = "uk_notice_reader",
+                columnNames = {"notice_id", "reader_account"}))
+@EqualsAndHashCode(onlyExplicitlyIncluded = true, callSuper = false)
+public class NoticeRead extends BaseEntity {
+
+    /**
+     * 通知ID（关联 notice.id）
+     */
+    @Column(name = "notice_id", nullable = false)
+    private Integer noticeId;
+
+    /**
+     * 读者登录账号
+     */
+    @Column(name = "reader_account", nullable = false, length = 64)
+    private String readerAccount;
+
+    /**
+     * 读者姓名
+     */
+    @Column(name = "reader_name", length = 64)
+    private String readerName;
+
+    /**
+     * 阅读时间
+     */
+    @Column(name = "read_time")
+    private LocalDateTime readTime;
+
+    // ==================== 阅读身份快照（改造方案 2.3，学员阅读时带出） ====================
+
+    /** 学校ID（取通知 sch_id） */
+    @Column(name = "sch_id")
+    private Integer schId;
+
+    /** 年级ID快照 */
+    @Column(name = "grade_id")
+    private Integer gradeId;
+
+    /** 年级名称快照 */
+    @Column(name = "grade_name", length = 128)
+    private String gradeName;
+
+    /** 班级ID快照 */
+    @Column(name = "class_id")
+    private Integer classId;
+
+    /** 班级名称快照 */
+    @Column(name = "class_name", length = 128)
+    private String className;
+}