asp.netcore5.0使用xxl-job

書接上文go任務調器gocron和xxl-job 我們來看看asp.netcore5.0裏面怎麼使用， 非常高興有大佬們的貢獻https://github.com/NanoFabricFX/DotXxlJob， 我的xxl-job是2.2.0，按照githab上我們需要安裝DotXxlJob.Core然後準備代碼如下：

using DotXxlJob.Core;
using DotXxlJob.Core.Model;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace WebApp
{
    // 聲明一個AspNet的Middleware中間件,並擴展ApplicationBuilder，本質是攔截Post請求，解析Body中的流信息
    public class XxlJobExecutorMiddleware
    {
        private readonly IServiceProvider _provider;
        private readonly RequestDelegate _next;

        private readonly XxlRestfulServiceHandler _rpcService;
        public XxlJobExecutorMiddleware(IServiceProvider provider, RequestDelegate next)
        {
            this._provider = provider;
            this._next = next;
            this._rpcService = _provider.GetRequiredService<XxlRestfulServiceHandler>();
        }

        // 聲明一箇中間件,並擴展ApplicationBuilder，本質是攔截Post請求，解析Body中的流信息
        public async Task Invoke(HttpContext context)
        {
            string contentType = context.Request.ContentType;

            if ("POST".Equals(context.Request.Method, StringComparison.OrdinalIgnoreCase)
                && !string.IsNullOrEmpty(contentType)
                && contentType.ToLower().StartsWith("application/json"))
            {

                await _rpcService.HandlerAsync(context.Request, context.Response);

                return;
            }

            await _next.Invoke(context);
        }
    }

    //擴展ApplicationBuilderExtensions,可根據實際情況綁定在特殊的Url Path上
    public static class ApplicationBuilderExtensions
    {
        public static IApplicationBuilder UseXxlJobExecutor(this IApplicationBuilder app)
        {
            return app.UseMiddleware<XxlJobExecutorMiddleware>();
        }
    }

    //編寫JobHandler,繼承AbstractJobHandler或者直接實現接口IJobHandler，通過context.JobLogger 記錄執行過程和結果，在AdminWeb上可查看的哦
    [JobHandler("demoJobHandler")]
    public class DemoJobHandler : AbstractJobHandler
    {
        public override Task<ReturnT> Execute(JobExecuteContext context)
        {
            context.JobLogger.Log("receive demo job handler,parameter:{0}", context.JobParameter);
            Console.WriteLine("receive demo job handler,parameter:{0}", context.JobParameter);
             return Task.FromResult(ReturnT.Success("receive:"+ context.JobParameter));
        }
    }

    public class XxlJobExecutorOptions
    {

        /// <summary>
        /// 管理端地址，多個以;分隔
        /// </summary>
        public string AdminAddresses { get; set; }
        /// <summary>
        /// appName自動註冊時要去管理端配置一致
        /// </summary>
        public string AppName { get; set; } = "xxl-job-executor-dotnet";
        /// <summary>
        /// 自動註冊時提交的地址，爲空會自動獲取內網地址
        /// </summary>
        public string SpecialBindAddress { get; set; }
        /// <summary>
        /// 綁定端口
        /// </summary>
        public int Port { get; set; }
        /// <summary>
        /// 是否自動註冊
        /// </summary>
        public bool AutoRegistry { get; set; }
        /// <summary>
        /// 認證票據
        /// </summary>
        public string AccessToken { get; set; }
        /// <summary>
        /// 日誌目錄，默認爲執行目錄的logs子目錄下，請配置絕對路徑
        /// </summary>
        public string LogPath { get; set; } = Path.Combine(AppContext.BaseDirectory, "./logs");
        /// <summary>
        /// 日誌保留天數
        /// </summary>
        public int LogRetentionDays { get; set; } = 30;
    }
}

修改Startup.cs的ConfigureServices方法添加：

services.AddXxlJobExecutor(Configuration);
services.AddDefaultXxlJobHandlers();// add httpHandler;
services.AddSingleton<IJobHandler, DemoJobHandler>(); // 添加自定義的jobHandler
services.AddAutoRegistry(); // 自動註冊

在Configure方法添加：

//啓用XxlExecutor
app.UseXxlJobExecutor();

修改：appsettings.json

{
  "Logging": {
    "LogLevel": {
      "Default": "Information"
    }
  },
  "xxlJob": {
    "adminAddresses": "http://192.168.100.21:9080/xxl-job-admin",
    "appName": "xxl-job-executor-dotnet",
    "specialBindAddress": "192.168.100.2",
    "port": 5000,
    "autoRegistry": true,
    "accessToken": "",
    "logRetentionDays": 30
  }

}

同時也需要修改launchSettings.json文件 ： "applicationUrl": "http://192.168.100.2:5000",  默認是http://localhost:5000, 我這裏有2張網卡，不然xxl-job那邊無法訪問到指點的ip， 我這裏演示的時候把程序放到兩臺計算機上。

運行效果如下：