添加状态统计接口

client-api/src/main/java/org/jiayunet/controller/JobController.java

@@ -9,6 +9,8 @@ import org.jiayunet.pojo.param.job.JobApplyParam;
 import org.jiayunet.pojo.param.job.JobApplyQueryParam;
 import org.jiayunet.pojo.param.job.JobDislikeParam;
 import org.jiayunet.pojo.param.job.JobQueryParam;
+import org.jiayunet.pojo.vo.JobApplyCountVo;
+import org.jiayunet.pojo.vo.JobFavoriteCountVo;
 import org.jiayunet.service.JobService;
 import org.jiayunet.tool.UserSecurityTool;
 import org.springframework.validation.annotation.Validated;
@@ -99,4 +101,22 @@ public class JobController {
         Long userId = UserSecurityTool.getUserId();
         jobService.applyJob(param.getJobId(), param.getStatus(), userId);
     }
+
+    /**
+     * 收藏统计
+     */
+    @GetMapping("/favorite/count")
+    public JobFavoriteCountVo getFavoriteCount() {
+        Long userId = UserSecurityTool.getUserId();
+        return jobService.getFavoriteCount(userId);
+    }
+
+    /**
+     * 投递统计
+     */
+    @GetMapping("/apply/count")
+    public JobApplyCountVo getApplyCount() {
+        Long userId = UserSecurityTool.getUserId();
+        return jobService.getApplyCount(userId);
+    }
 }

client-api/src/main/java/org/jiayunet/pojo/vo/JobApplyCountVo.java

@@ -0,0 +1,30 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.Data;
+
+/**
+ * 投递统计结果
+ *
+ * @author zk
+ */
+@Data
+public class JobApplyCountVo {
+
+    /** 投递总数 */
+    private Long totalCount;
+
+    /** 已投递数（status=0） */
+    private Long appliedCount;
+
+    /** 面试中数（status=1） */
+    private Long interviewingCount;
+
+    /** 有Offer数（status=2） */
+    private Long offerCount;
+
+    /** 未通过数（status=3） */
+    private Long rejectedCount;
+
+    /** 已结束数（status=4） */
+    private Long closedCount;
+}

client-api/src/main/java/org/jiayunet/pojo/vo/JobFavoriteCountVo.java

@@ -0,0 +1,25 @@
+package org.jiayunet.pojo.vo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * 收藏统计结果
+ *
+ * @author zk
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class JobFavoriteCountVo {
+
+    /** 收藏总数 */
+    private Long totalCount;
+
+    /** 有效收藏数（岗位status=0） */
+    private Long validCount;
+
+    /** 失效收藏数（岗位status!=0或已删除） */
+    private Long invalidCount;
+}

client-api/src/main/java/org/jiayunet/service/JobService.java

@@ -12,6 +12,8 @@ import org.jiayunet.pojo.dto.job.JobMatchScoreDto;
 import org.jiayunet.pojo.param.job.JobApplyQueryParam;
 import org.jiayunet.pojo.param.job.JobQueryParam;
 import org.jiayunet.pojo.po.*;
+import org.jiayunet.pojo.vo.JobApplyCountVo;
+import org.jiayunet.pojo.vo.JobFavoriteCountVo;
 import org.jiayunet.pojo.vo.JobListItemVo;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -461,4 +463,51 @@ public class JobService {
             userJobApplicationMapper.insert(application);
         }
     }
+
+    /**
+     * 收藏统计
+     * <p>方法逻辑流程：</p>
+     * <p>1. 查询收藏总数</p>
+     * <p>2. 查询有效收藏数（JOIN岗位表，status=0）</p>
+     * <p>3. 计算失效收藏数</p>
+     */
+    public JobFavoriteCountVo getFavoriteCount(Long userId) {
+        // 1. 查询收藏总数
+        Long totalCount = userJobFavoriteMapper.selectCount(new LambdaQueryWrapper<UserJobFavorite>().eq(UserJobFavorite::getUserId, userId));
+
+        // 2. 查询有效收藏数（岗位status=0）
+        List<UserJobFavorite> favorites = userJobFavoriteMapper.selectList(new LambdaQueryWrapper<UserJobFavorite>().eq(UserJobFavorite::getUserId, userId));
+        List<Long> jobIds = favorites.stream().map(UserJobFavorite::getJobId).collect(Collectors.toList());
+        Long validCount = 0L;
+        if (!jobIds.isEmpty()) {
+            validCount = jobMapper.selectCount(new LambdaQueryWrapper<Job>().in(Job::getId, jobIds).eq(Job::getStatus, 0));
+        }
+
+        // 3. 计算失效收藏数
+        Long invalidCount = totalCount - validCount;
+
+        return new JobFavoriteCountVo(totalCount, validCount, invalidCount);
+    }
+
+    /**
+     * 投递统计
+     * <p>方法逻辑流程：</p>
+     * <p>1. 查询所有投递记录</p>
+     * <p>2. 按状态分组统计</p>
+     */
+    public JobApplyCountVo getApplyCount(Long userId) {
+        // 1. 查询所有投递记录
+        List<UserJobApplication> applications = userJobApplicationMapper.selectList(new LambdaQueryWrapper<UserJobApplication>().eq(UserJobApplication::getUserId, userId));
+
+        // 2. 按状态分组统计
+        JobApplyCountVo vo = new JobApplyCountVo();
+        vo.setTotalCount((long) applications.size());
+        vo.setAppliedCount(applications.stream().filter(a -> a.getStatus() == 0).count());
+        vo.setInterviewingCount(applications.stream().filter(a -> a.getStatus() == 1).count());
+        vo.setOfferCount(applications.stream().filter(a -> a.getStatus() == 2).count());
+        vo.setRejectedCount(applications.stream().filter(a -> a.getStatus() == 3).count());
+        vo.setClosedCount(applications.stream().filter(a -> a.getStatus() == 4).count());
+
+        return vo;
+    }
 }