1，优化mapper.xml的sql语句；

2，对于无销售数据的月份，插入销售结果为0的数据；

yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/service/statistics/CrmStatisticsPerformanceServiceImpl.java

@@ -1,6 +1,7 @@
 package cn.iocoder.yudao.module.crm.service.statistics;
 
 import cn.hutool.core.collection.CollUtil;
+import cn.hutool.core.date.LocalDateTimeUtil;
 import cn.hutool.core.util.ObjUtil;
 import cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.performance.CrmStatisticsPerformanceReqVO;
 import cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.performance.CrmStatisticsPerformanceRespVO;
@@ -13,8 +14,9 @@ import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
 
 import jakarta.annotation.Resource;
-import java.util.Collections;
-import java.util.List;
+
+import java.math.BigDecimal;
+import java.util.*;
 import java.util.function.Function;
 
 import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertList;
@@ -56,24 +58,87 @@ public class CrmStatisticsPerformanceServiceImpl implements CrmStatisticsPerform
      * 获得员工业绩数据
      *
      * @param performanceReqVO  参数
-     * @param performanceFunction 排行榜方法
-     * @return 排行版数据
+     * @param performanceFunction 员工业绩统计方法
+     * @return 员工业绩数据
      */
     private List<CrmStatisticsPerformanceRespVO> getPerformance(CrmStatisticsPerformanceReqVO performanceReqVO, Function<CrmStatisticsPerformanceReqVO,
             List<CrmStatisticsPerformanceRespVO>> performanceFunction) {
 
+        List<CrmStatisticsPerformanceRespVO> performanceRespVOList;
+
         // 1. 获得用户编号数组
         final List<Long> userIds = getUserIds(performanceReqVO);
         if (CollUtil.isEmpty(userIds)) {
             return Collections.emptyList();
         }
         performanceReqVO.setUserIds(userIds);
-        // 2. 获得排行数据
+        // 2. 获得业绩数据
         List<CrmStatisticsPerformanceRespVO> performance = performanceFunction.apply(performanceReqVO);
-        if (CollUtil.isEmpty(performance)) {
-            return Collections.emptyList();
+
+        // 获取查询的年份
+        String currentYear = LocalDateTimeUtil.format(performanceReqVO.getTimes()[0],"yyyy");
+
+        // 构造查询当年和前一年，每年12个月的年月组合
+        List<String> allMonths = new ArrayList<>();
+        for (int year = Integer.parseInt(currentYear)-1; year <= Integer.parseInt(currentYear); year++) {
+            for (int month = 1; month <= 12; month++) {
+                allMonths.add(String.format("%d%02d", year, month));
+            }
+        }
+
+        List<CrmStatisticsPerformanceRespVO> computedList = new ArrayList<>();
+        List<CrmStatisticsPerformanceRespVO> respVOList = new ArrayList<>();
+
+        // 生成computedList基础数据
+        // 构造完整的2*12个月的数据，如果某月数据缺失，需要补上0，一年12个月不能有缺失
+        for (String month : allMonths) {
+            CrmStatisticsPerformanceRespVO foundData = performance.stream()
+                    .filter(data -> data.getTime().equals(month))
+                    .findFirst()
+                    .orElse(null);
+
+            if (foundData != null) {
+                computedList.add(foundData);
+            } else {
+                CrmStatisticsPerformanceRespVO missingData = new CrmStatisticsPerformanceRespVO();
+                missingData.setTime(month);
+                missingData.setCurrentMonthCount(BigDecimal.ZERO);
+                missingData.setLastMonthCount(BigDecimal.ZERO);
+                missingData.setLastYearCount(BigDecimal.ZERO);
+                computedList.add(missingData);
+            }
+        }
+        //根据查询年份和前一年的数据，计算查询年份的同比环比数据
+        for (CrmStatisticsPerformanceRespVO currentData : computedList) {
+            String currentMonth = currentData.getTime();
+
+            // 根据当年和前一年的月销售数据，计算currentYear的完整数据
+            if (currentMonth.startsWith(currentYear)) {
+                // 计算 LastMonthCount
+                int currentIndex = computedList.indexOf(currentData);
+                if (currentIndex > 0) {
+                    CrmStatisticsPerformanceRespVO lastMonthData = computedList.get(currentIndex - 1);
+                    currentData.setLastMonthCount(lastMonthData.getCurrentMonthCount());
+                } else {
+                    currentData.setLastMonthCount(BigDecimal.ZERO); // 第一个月的 LastMonthCount 设为0
+                }
+
+                // 计算 LastYearCount
+                String lastYearMonth = String.valueOf(Integer.parseInt(currentMonth) - 100);
+                CrmStatisticsPerformanceRespVO lastYearData = computedList.stream()
+                        .filter(data -> data.getTime().equals(lastYearMonth))
+                        .findFirst()
+                        .orElse(null);
+
+                if (lastYearData != null) {
+                    currentData.setLastYearCount(lastYearData.getCurrentMonthCount());
+                } else {
+                    currentData.setLastYearCount(BigDecimal.ZERO); // 如果去年同月数据不存在，设为0
+                }
+                respVOList.add(currentData);//给前端只需要返回查询当年的数据，不需要前一年数据
+            }
         }
-        return performance;
+        return respVOList;
     }
 
     /**

yudao-module-crm/yudao-module-crm-biz/src/main/resources/mapper/statistics/CrmStatisticsPerformanceMapper.xml

@@ -5,27 +5,8 @@
     <select id="selectContractCountPerformance"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.performance.CrmStatisticsPerformanceRespVO">
         SELECT
-        t.time as time,
-        COALESCE(t.currentMonthCount,0) as currentMonthCount,
-        COALESCE(y.lastMonthCount,0) as lastMonthCount,
-        COALESCE(z.lastYearCount,0) as lastYearCount
-        FROM
-        (SELECT
-        COUNT(1) AS currentMonthCount,
-        DATE_FORMAT(order_date, '%Y-%m') AS time
-        FROM	crm_contract
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
-        GROUP BY time)t
-        LEFT JOIN
-        (SELECT
-        COUNT(1) AS lastMonthCount,
-        DATE_FORMAT(DATE_ADD(order_date,INTERVAL 1 MONTH), '%Y-%m') AS time
+        DATE_FORMAT(order_date, '%Y%m') AS time,
+        COUNT(1) AS currentMonthCount
         FROM	crm_contract
         WHERE deleted = 0
         AND audit_status = 20
@@ -35,45 +16,14 @@
         </foreach>
         AND (DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
         or DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1)
-        GROUP BY time)y ON t.time = y.time
-        LEFT JOIN
-        (SELECT
-        COUNT(1) AS lastYearCount,
-        DATE_FORMAT(DATE_ADD(order_date,INTERVAL 1 YEAR), '%Y-%m') AS time
-        FROM	crm_contract
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1
-        GROUP BY time)z ON t.time = z.time
+        GROUP BY time
     </select>
+
     <select id="selectContractPricePerformance"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.performance.CrmStatisticsPerformanceRespVO">
         SELECT
-        t.time as time,
-        COALESCE(t.currentMonthCount,0) as currentMonthCount,
-        COALESCE(y.lastMonthCount,0) as lastMonthCount,
-        COALESCE(z.lastYearCount,0) as lastYearCount
-        FROM
-        (SELECT
-        IFNULL(SUM(total_price), 0) AS currentMonthCount,
-        DATE_FORMAT(order_date, '%Y-%m') AS time
-        FROM	crm_contract
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
-        GROUP BY time)t
-        LEFT JOIN
-        (SELECT
-        IFNULL(SUM(total_price), 0) AS lastMonthCount,
-        DATE_FORMAT(DATE_ADD(order_date,INTERVAL 1 MONTH), '%Y-%m') AS time
+        DATE_FORMAT(order_date, '%Y%m') AS time,
+        IFNULL(SUM(total_price), 0) AS currentMonthCount
         FROM	crm_contract
         WHERE deleted = 0
         AND audit_status = 20
@@ -83,46 +33,14 @@
         </foreach>
         AND (DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
         or DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1)
-        GROUP BY time)y ON t.time = y.time
-        LEFT JOIN
-        (SELECT
-        IFNULL(SUM(total_price), 0) AS lastYearCount,
-        DATE_FORMAT(DATE_ADD(order_date,INTERVAL 1 YEAR), '%Y-%m') AS time
-        FROM	crm_contract
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(order_date, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1
-        GROUP BY time)z ON t.time = z.time
+        GROUP BY time
     </select>
 
     <select id="selectReceivablePricePerformance"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.performance.CrmStatisticsPerformanceRespVO">
         SELECT
-        t.time as time,
-        COALESCE(t.currentMonthCount,0) as currentMonthCount,
-        COALESCE(y.lastMonthCount,0) as lastMonthCount,
-        COALESCE(z.lastYearCount,0) as lastYearCount
-        FROM
-        (SELECT
-        IFNULL(SUM(price), 0) AS currentMonthCount,
-        DATE_FORMAT(return_time, '%Y-%m') AS time
-        FROM	crm_receivable
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(return_time, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
-        GROUP BY time)t
-        LEFT JOIN
-        (SELECT
-        IFNULL(SUM(price), 0) AS lastMonthCount,
-        DATE_FORMAT(DATE_ADD(return_time,INTERVAL 1 MONTH), '%Y-%m') AS time
+        DATE_FORMAT(return_time, '%Y%m') AS time,
+        IFNULL(SUM(price), 0) AS currentMonthCount
         FROM	crm_receivable
         WHERE deleted = 0
         AND audit_status = 20
@@ -132,21 +50,7 @@
         </foreach>
         AND (DATE_FORMAT(return_time, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')
         or DATE_FORMAT(return_time, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1)
-        GROUP BY time)y ON t.time = y.time
-        LEFT JOIN
-        (SELECT
-        IFNULL(SUM(price), 0) AS lastYearCount,
-        DATE_FORMAT(DATE_ADD(return_time,INTERVAL 1 YEAR), '%Y-%m') AS time
-        FROM	crm_receivable
-        WHERE deleted = 0
-        AND audit_status = 20
-        AND owner_user_id in
-        <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
-            #{userId}
-        </foreach>
-        AND DATE_FORMAT(return_time, '%Y') = DATE_FORMAT(#{times[0],javaType=java.time.LocalDateTime},'%Y')-1
-        GROUP BY time)z ON t.time = z.time
+        GROUP BY time
     </select>
 
-
 </mapper>