38 lines
1.1 KiB
C#
38 lines
1.1 KiB
C#
using Coravel.Invocable;
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using FreeRedis;
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using Microsoft.Extensions.DependencyInjection;
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using System;
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using System.Threading.Tasks;
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using VideoAnalysisCore.Common;
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namespace VideoAnalysisCore.Job
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{
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/// <summary>
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/// 设备心跳上报任务
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/// </summary>
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public class DeviceHeartbeatJob : IInvocable
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{
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public Task Invoke()
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{
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try
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{
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var redis = AppCommon.Services.GetService<RedisClient>();
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if (redis == null) return Task.CompletedTask;
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var deviceId = AppCommon.Config.ID.ToString();
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// 1. 发送心跳 (设置一个带过期时间的Key)
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// 只有当程序正常运行时，这个Key才会不断被续期
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// 过期时间设为 60秒，Job每30秒执行一次
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redis.Set(RedisExpandKey.DeviceHeartbeat(deviceId), DateTime.Now.ToString(), 60);
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}
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catch (Exception ex)
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{
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Console.WriteLine($"心跳任务异常: {ex.Message}");
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}
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return Task.CompletedTask;
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}
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}
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}
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