添加设备监控，第一次上线邮件提醒

handler/tool.go

@@ -75,6 +75,13 @@ func SetDeviceStatusV2(c *gin.Context) {
 		for _, v := range devices {
 			if v == req.ID {
 				// 继续处理请求
+				//是否是暂停之后第一次上线,如果是则发送邮件通知
+				if worker.IsContainKey("monitor_"+req.ID) == false {
+					//发送邮件通知
+					title := "设备上线"
+					content := "设备上线\n设备:" + req.ID + "\t状态:" + req.Status + "\t时间：" + time.Now().String()
+					go SendMail(title, content)
+				}
 				worker.SetRedisWithExpire("monitor_"+req.ID, "1", time.Second*300)
 				c.JSON(200, gin.H{"code": 0, "message": "success"})
 				return