修复服务器收到数据后提示400的错误

backend/internal/handler/handler.go

@@ -108,15 +108,6 @@ func HandleMetricsPost(c *gin.Context) {
 		agentName = device.Name
 	}
 
-	// 解析请求体
-	var req MetricsRequest
-	if err := c.ShouldBindJSON(&req); err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{
-			"error": "Invalid request body",
-		})
-		return
-	}
-
 	// 更新设备状态为active
 	if err := deviceStorage.UpdateDeviceStatus(deviceID, "active"); err != nil {
 		// 只记录警告，不影响指标处理
@@ -128,63 +119,86 @@ func HandleMetricsPost(c *gin.Context) {
 		"agent_name": agentName,
 	}
 
-	// 写入CPU指标
-	if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "cpu", req.CPU, baseTags); err != nil {
-		// 只记录警告，不影响后续指标处理
-		log.Printf("Warning: Failed to write CPU metrics: %v", err)
-	}
+	// 处理请求体，支持单指标对象和指标数组
+	var metricsList []MetricsRequest
 
-	// 写入内存指标
-	if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "memory", req.Memory, baseTags); err != nil {
-		// 只记录警告，不影响后续指标处理
-		log.Printf("Warning: Failed to write memory metrics: %v", err)
-	}
-
-	// 写入磁盘指标，支持多个挂载点
-	for mountpoint, usage := range req.Disk {
-		// 为每个挂载点创建标签，包含基础标签和挂载点
-		tags := make(map[string]string)
-		// 复制基础标签
-		for k, v := range baseTags {
-			tags[k] = v
+	// 首先尝试解析为数组
+	if err := c.ShouldBindJSON(&metricsList); err != nil {
+		// 如果解析数组失败，尝试解析为单个对象
+		var singleMetric MetricsRequest
+		if err := c.ShouldBindJSON(&singleMetric); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{
+				"error": "Invalid request body",
+			})
+			return
 		}
-		// 添加挂载点标签
-		tags["mountpoint"] = mountpoint
+		// 将单个对象添加到列表中
+		metricsList = append(metricsList, singleMetric)
+	}
 
-		// 写入磁盘指标
-		if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "disk", usage, tags); err != nil {
+	// 处理所有指标
+	for i, req := range metricsList {
+		// 写入CPU指标
+		if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "cpu", req.CPU, baseTags); err != nil {
 			// 只记录警告，不影响后续指标处理
-			log.Printf("Warning: Failed to write disk metrics for mountpoint %s: %v", mountpoint, err)
+			log.Printf("Warning: Failed to write CPU metrics: %v", err)
+		}
+
+		// 写入内存指标
+		if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "memory", req.Memory, baseTags); err != nil {
+			// 只记录警告，不影响后续指标处理
+			log.Printf("Warning: Failed to write memory metrics: %v", err)
+		}
+
+		// 写入磁盘指标，支持多个挂载点
+		for mountpoint, usage := range req.Disk {
+			// 为每个挂载点创建标签，包含基础标签和挂载点
+			tags := make(map[string]string)
+			// 复制基础标签
+			for k, v := range baseTags {
+				tags[k] = v
+			}
+			// 添加挂载点标签
+			tags["mountpoint"] = mountpoint
+
+			// 写入磁盘指标
+			if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "disk", usage, tags); err != nil {
+				// 只记录警告，不影响后续指标处理
+				log.Printf("Warning: Failed to write disk metrics for mountpoint %s: %v", mountpoint, err)
+			}
+		}
+
+		// 写入网络发送指标
+		if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "network_sent", float64(req.Network.BytesSent), baseTags); err != nil {
+			// 只记录警告，不影响后续指标处理
+			log.Printf("Warning: Failed to write network sent metrics: %v", err)
+		}
+
+		// 写入网络接收指标
+		if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "network_received", float64(req.Network.BytesReceived), baseTags); err != nil {
+			// 只记录警告，不影响后续指标处理
+			log.Printf("Warning: Failed to write network received metrics: %v", err)
+		}
+
+		// 广播指标更新消息，只广播最后一个指标
+		if i == len(metricsList)-1 {
+			metrics := map[string]interface{}{
+				"cpu":    req.CPU,
+				"memory": req.Memory,
+				"disk":   req.Disk,
+				"network": map[string]uint64{
+					"bytes_sent":     req.Network.BytesSent,
+					"bytes_received": req.Network.BytesReceived,
+				},
+			}
+			broadcastMetricsUpdate(deviceID, metrics)
 		}
 	}
 
-	// 写入网络发送指标
-	if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "network_sent", float64(req.Network.BytesSent), baseTags); err != nil {
-		// 只记录警告，不影响后续指标处理
-		log.Printf("Warning: Failed to write network sent metrics: %v", err)
-	}
-
-	// 写入网络接收指标
-	if err := globalStorage.WriteMetric(c.Request.Context(), deviceID, "network_received", float64(req.Network.BytesReceived), baseTags); err != nil {
-		// 只记录警告，不影响后续指标处理
-		log.Printf("Warning: Failed to write network received metrics: %v", err)
-	}
-
-	// 广播指标更新消息
-	metrics := map[string]interface{}{
-		"cpu":    req.CPU,
-		"memory": req.Memory,
-		"disk":   req.Disk,
-		"network": map[string]uint64{
-			"bytes_sent":     req.Network.BytesSent,
-			"bytes_received": req.Network.BytesReceived,
-		},
-	}
-	broadcastMetricsUpdate(deviceID, metrics)
-
 	// 返回成功响应
 	c.JSON(http.StatusOK, gin.H{
 		"message": "Metrics received successfully",
+		"count":   len(metricsList),
 	})
 }