fix: 修正雨量存储

db/db.go

@@ -3,10 +3,11 @@ package db
 import (
 	"database/sql"
 	"fmt"
+	_ "gi
 	"log"
-	"rain_monitor/models"
-	"time"
+/go-sql-driver/mysql"
 
+	"rain_monitor/models"
 	_ "github.com/go-sql-driver/mysql"
 )
 
@@ -84,6 +85,44 @@ func SaveWeatherData(data *models.WeatherData) (int64, error) {
 }
 
 func SaveRainGaugeData(data *models.RainGaugeData) (int64, error) {
+	// 检查是否在短时间内已经插入过类似数据
+	// 获取最近5分钟内的数据
+	fiveMinutesAgo := data.Timestamp.Add(-5 * time.Minute)
+	rows, err := db.Query(`
+		SELECT id, timestamp, total_rainfall 
+		FROM rain_gauge_data 
+		WHERE timestamp BETWEEN ? AND ? 
+		ORDER BY timestamp DESC
+
+	
+	if err != nil {
+		log.Printf("查询最近雨量计数据失败: %v", err)
+		// 即使查询失败，我们仍然尝试插入新数据
+	} else {
+
+		
+		// 检查是否有相似数据
+		for rows.Next() {
+			var id int64
+			var ts time.Time
+
+			
+			if err := rows.Scan(&id, &ts, &rainfall); err != nil {
+				log.Printf("扫描雨量计数据失败: %v", err)
+				continue
+
+			
+			// 如果时间非常接近（小于1分钟）且雨量数据相同或非常接近，则认为是重复数据
+			timeDiff := data.Timestamp.Sub(ts)
+
+			
+			if timeDiff < time.Minute && rainfallDiff < 0.1 {
+				log.Printf("检测到重复的雨量计数据，跳过插入。ID=%d, 时间=%v", id, ts)
+				return id, nil // 返回已存在的记录ID
+			}
+		}
+	}
+
 	result, err := db.Exec(models.InsertRainGaugeDataSQL,
 		data.Timestamp, data.DailyRainfall, data.InstantRainfall, data.YesterdayRainfall,
 		data.TotalRainfall, data.HourlyRainfall, data.LastHourRainfall, data.Max24hRainfall,
@@ -96,6 +135,7 @@ func SaveRainGaugeData(data *models.RainGaugeData) (int64, error) {
 	if err != nil {
 		return 0, fmt.Errorf("获取插入ID失败: %v", err)
 	}
+	log.Printf("雨量计数据已保存，ID=%d, 时间=%v", id, data.Timestamp)
 
 	return id, nil
 }
@@ -215,8 +255,20 @@ func GetAggregatedData(start, end time.Time) ([]models.AggregatedData, error) {
 		if err != nil {
 			log.Printf("扫描行数据失败: %v", err)
 			return nil, fmt.Errorf("扫描聚合数据失败: %v", err)
-		}
-		data.FormattedTime = timestampStr
+
+		
+		// 设置格式化时间字符串
+
+		
+		// 尝试解析时间字符串为time.Time类型
+		timestamp, err := time.Parse("2006-01-02 15:04:05", timestampStr)
+		if err != nil {
+			log.Printf("解析时间字符串失败: %v, 原始字符串: %s", err, timestampStr)
+			// 即使解析失败，也继续处理，前端会使用FormattedTime
+		} else {
+			data.Timestamp = timestamp
+
+		
 		result = append(result, data)
 	}