diff --git a/proto/tool.go b/proto/tool.go
index 3000c71..e4ea6dc 100644
--- a/proto/tool.go
+++ b/proto/tool.go
@@ -10,8 +10,8 @@ type DashBoardStatisticsSt struct {
 
 // 统计过去一周每天的会话数、消息数
 type DashBoardStatisticsWeekSt struct {
-	SessionCount []int64 `json:"session_count"`
-	MessageCount []int64 `json:"message_count"`
+	SessionCount map[int]int64 `json:"session_count"`
+	MessageCount map[int]int64 `json:"message_count"`
 }
 
 type DashBoardStatisticsResp struct {
diff --git a/service/toolService.go b/service/toolService.go
index 494399e..0d6f14d 100644
--- a/service/toolService.go
+++ b/service/toolService.go
@@ -132,17 +132,22 @@ func GetBaseDashboardInfo() proto.DashBoardStatisticsSt {
 // 获取最近7天的消息、会话数量
 func GetRecent7DaysMessageSessionCount() (proto.DashBoardStatisticsWeekSt, error) {
 	var res proto.DashBoardStatisticsWeekSt
-	var err error
-	res.SessionCount, err = dao.FindSessionCountByDate()
+	SessionCounts, err := dao.FindSessionCountByDate()
 	if err != nil {
 		log.Println("get recent 7 days session count error:", err)
 		return res, err
 	}
-	res.MessageCount, err = dao.FindMessageCountByDate()
+	for i := 0; i < len(SessionCounts); i++ {
+		res.SessionCount[i] = SessionCounts[i]
+	}
+	MessageCounts, err := dao.FindMessageCountByDate()
 	if err != nil {
 		log.Println("get recent 7 days message count error:", err)
 		return res, err
 	}
+	for i := 0; i < len(MessageCounts); i++ {
+		res.MessageCount[i] = MessageCounts[i]
+	}
 	return res, nil
 }