From d685dec6602233a3ceb3f12eae0b810a8948ba19 Mon Sep 17 00:00:00 2001
From: zk <sim18502043706@163.com>
Date: Fri, 31 Jul 2026 11:02:03 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=85=AC=E5=85=B1=E7=BB=9F?=
 =?UTF-8?q?=E8=AE=A1=E6=8E=A5=E5=8F=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../RecruitAnnouncementStatisticsDto.java     | 21 ++++++++++++++
 .../vo/RecruitAnnouncementStatisticsVo.java   | 21 ++++++++++++++
 .../mapper/RecruitAnnouncementMapper.xml      | 28 +++++++++++++++++++
 3 files changed, 70 insertions(+)
 create mode 100644 client-api/src/main/java/org/jiayunet/pojo/dto/recruitAnnouncement/RecruitAnnouncementStatisticsDto.java
 create mode 100644 manager/src/main/java/org/jiayunet/pojo/vo/RecruitAnnouncementStatisticsVo.java
 create mode 100644 manager/src/main/resources/mapper/RecruitAnnouncementMapper.xml

diff --git a/client-api/src/main/java/org/jiayunet/pojo/dto/recruitAnnouncement/RecruitAnnouncementStatisticsDto.java b/client-api/src/main/java/org/jiayunet/pojo/dto/recruitAnnouncement/RecruitAnnouncementStatisticsDto.java
new file mode 100644
index 0000000..0917d83
--- /dev/null
+++ b/client-api/src/main/java/org/jiayunet/pojo/dto/recruitAnnouncement/RecruitAnnouncementStatisticsDto.java
@@ -0,0 +1,21 @@
+package org.jiayunet.pojo.dto.recruitAnnouncement;
+
+import lombok.Data;
+
+/**
+ * 招聘公告统计返回
+ *
+ * @author zk
+ */
+@Data
+public class RecruitAnnouncementStatisticsDto {
+
+    /** 今日新增公告数 */
+    private Long dayCount;
+
+    /** 本月新增公告数 */
+    private Long monthCount;
+
+    /** 累计公告数 */
+    private Long totalCount;
+}
diff --git a/manager/src/main/java/org/jiayunet/pojo/vo/RecruitAnnouncementStatisticsVo.java b/manager/src/main/java/org/jiayunet/pojo/vo/RecruitAnnouncementStatisticsVo.java
new file mode 100644
index 0000000..bc89994
--- /dev/null
+++ b/manager/src/main/java/org/jiayunet/pojo/vo/RecruitAnnouncementStatisticsVo.java
@@ -0,0 +1,21 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 招聘公告统计VO（SQL查询结果）
+ *
+ * @author zk
+ */
+@Data
+public class RecruitAnnouncementStatisticsVo {
+
+    /** 今日新增公告数 */
+    private Long dayCount;
+
+    /** 本月新增公告数 */
+    private Long monthCount;
+
+    /** 累计公告数 */
+    private Long totalCount;
+}
diff --git a/manager/src/main/resources/mapper/RecruitAnnouncementMapper.xml b/manager/src/main/resources/mapper/RecruitAnnouncementMapper.xml
new file mode 100644
index 0000000..1db27fc
--- /dev/null
+++ b/manager/src/main/resources/mapper/RecruitAnnouncementMapper.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="org.jiayunet.mapper.RecruitAnnouncementMapper">
+
+    <resultMap id="RecruitAnnouncementStatisticsVoMap" type="org.jiayunet.pojo.vo.RecruitAnnouncementStatisticsVo">
+        <result column="day_count" property="dayCount"/>
+        <result column="month_count" property="monthCount"/>
+        <result column="total_count" property="totalCount"/>
+    </resultMap>
+
+    <!-- 查询最后更新时间：按id倒序取第一条的创建时间 -->
+    <select id="selectLastCreateTime" resultType="java.time.Instant">
+        SELECT create_time
+        FROM bg_recruit_announcement
+        ORDER BY id DESC
+        LIMIT 1
+    </select>
+
+    <!-- 统计公告数量：一次扫描算出日/月/累计三个计数，保证三个数字来自同一快照 -->
+    <select id="selectStatistics" resultMap="RecruitAnnouncementStatisticsVoMap">
+        SELECT
+            IFNULL(SUM(create_time <![CDATA[>=]]> #{dayStart}), 0)   AS day_count,
+            IFNULL(SUM(create_time <![CDATA[>=]]> #{monthStart}), 0) AS month_count,
+            COUNT(*)                                                AS total_count
+        FROM bg_recruit_announcement
+    </select>
+
+</mapper>