添加热门城市 行业 地区

manager/src/main/java/org/jiayunet/mapper/JobMapper.java

@@ -4,6 +4,9 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 import org.jiayunet.pojo.po.Job;
+import org.jiayunet.pojo.vo.HotCityVo;
+import org.jiayunet.pojo.vo.HotIndustryVo;
+import org.jiayunet.pojo.vo.HotJobCategoryVo;
 import org.jiayunet.pojo.vo.JobListItemVo;
 
 import java.time.Instant;
@@ -27,4 +30,22 @@ public interface JobMapper extends CommonMapper<Job> {
      * <p>过滤条件与 selectJobPage 共用同一段 SQL（jobPageWhere），保证列表与总数口径一致</p>
      */
     Long countJobPage(@Param("jobIds") List<Long> jobIds, @Param("statusFilter") List<Integer> statusFilter, @Param("keyword") String keyword, @Param("regionCodes") List<String> regionCodes, @Param("categoryIds") List<Long> categoryIds, @Param("industryIds") List<Long> industryIds, @Param("employmentType") Integer employmentType, @Param("excludeJobIds") List<Long> excludeJobIds, @Param("excludeCompanyIds") List<Long> excludeCompanyIds, @Param("excludeRegionCodes") List<String> excludeRegionCodes, @Param("excludeIndustryIds") List<Long> excludeIndustryIds, @Param("recruitCategory") Integer recruitCategory, @Param("companyTypes") List<String> companyTypes, @Param("companyId") Long companyId, @Param("educations") List<Integer> educations, @Param("publishStartTime") Instant publishStartTime, @Param("publishEndTime") Instant publishEndTime);
+
+    /**
+     * 查询热门行业（二级行业）
+     * <p>岗位关联公司、公司关联行业，按上架岗位数量倒序取前 limit 个</p>
+     */
+    List<HotIndustryVo> selectHotIndustries(@Param("limit") Integer limit);
+
+    /**
+     * 查询热门岗位类型（二级岗位类型）
+     * <p>岗位类型表自关联，从三级叶子上溯到二级后分组，按上架岗位数量倒序取前 limit 个</p>
+     */
+    List<HotJobCategoryVo> selectHotJobCategories(@Param("limit") Integer limit);
+
+    /**
+     * 查询热门城市
+     * <p>岗位关联公司、公司关联地区，按上架岗位数量倒序取前 limit 个</p>
+     */
+    List<HotCityVo> selectHotCities(@Param("limit") Integer limit);
 }

manager/src/main/java/org/jiayunet/pojo/vo/HotCityVo.java

@@ -0,0 +1,18 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 热门城市VO
+ *
+ * @author zk
+ */
+@Data
+public class HotCityVo {
+
+    /** 地区编码 */
+    private String code;
+
+    /** 地区名称 */
+    private String name;
+}

manager/src/main/java/org/jiayunet/pojo/vo/HotIndustryVo.java

@@ -0,0 +1,18 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 热门行业VO（二级行业）
+ *
+ * @author zk
+ */
+@Data
+public class HotIndustryVo {
+
+    /** 行业ID */
+    private Long id;
+
+    /** 行业名称 */
+    private String name;
+}

manager/src/main/java/org/jiayunet/pojo/vo/HotJobCategoryVo.java

@@ -0,0 +1,18 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 热门岗位类型VO（二级岗位类型）
+ *
+ * @author zk
+ */
+@Data
+public class HotJobCategoryVo {
+
+    /** 岗位类型ID */
+    private Long id;
+
+    /** 岗位类型名称 */
+    private String name;
+}

manager/src/main/resources/mapper/JobMapper.xml

@@ -188,4 +188,65 @@
         <include refid="jobPageWhere"/>
     </select>
 
+    <!--
+        热门行业查询（二级行业）
+        岗位 → 公司 → 公司所属行业，按上架岗位数量倒序取前 limit 个
+    -->
+    <select id="selectHotIndustries" resultType="org.jiayunet.pojo.vo.HotIndustryVo">
+        SELECT
+            i.id,
+            i.name
+        FROM bg_job j
+        INNER JOIN bg_company c ON j.company_id = c.id
+        INNER JOIN bg_industry i ON c.industry_id = i.id
+        WHERE j.status = 0
+            AND c.status = 1
+            AND i.level = 2
+        GROUP BY i.id, i.name
+        ORDER BY COUNT(j.id) DESC
+        <if test="limit != null">
+            LIMIT #{limit}
+        </if>
+    </select>
+
+    <!--
+        热门岗位类型查询（二级岗位类型）
+        bg_job.category_id 存三级叶子，自关联上溯到二级后按二级分组，按上架岗位数量倒序取前 limit 个
+    -->
+    <select id="selectHotJobCategories" resultType="org.jiayunet.pojo.vo.HotJobCategoryVo">
+        SELECT
+            cat2.id,
+            cat2.name
+        FROM bg_job j
+        INNER JOIN bg_job_category cat3 ON j.category_id = cat3.id
+        INNER JOIN bg_job_category cat2 ON cat3.parent_id = cat2.id
+        WHERE j.status = 0
+            AND cat2.level = 2
+        GROUP BY cat2.id, cat2.name
+        ORDER BY COUNT(j.id) DESC
+        <if test="limit != null">
+            LIMIT #{limit}
+        </if>
+    </select>
+
+    <!--
+        热门城市查询
+        岗位 → 公司 → 公司所在地区，按上架岗位数量倒序取前 limit 个
+    -->
+    <select id="selectHotCities" resultType="org.jiayunet.pojo.vo.HotCityVo">
+        SELECT
+            r.code,
+            r.name
+        FROM bg_job j
+        INNER JOIN bg_company c ON j.company_id = c.id
+        INNER JOIN bg_china_regions_code r ON c.region_code = r.code
+        WHERE j.status = 0
+            AND c.status = 1
+        GROUP BY r.code, r.name
+        ORDER BY COUNT(j.id) DESC
+        <if test="limit != null">
+            LIMIT #{limit}
+        </if>
+    </select>
+
 </mapper>