.netcore控制台->定时任务Quartz

　　之前做数据同步时，用过timer、window服务，现在不用那么费事了，可以使用Quartz,并且配置灵活，使用cron表达式配置XML就可以。我用的是3.0.7版本支持.netcore。

• 首先创建一个.netcore控制台应用程序，添加Quartz、Quartz.Jobs、Quartz.Plugins引用，这里面添加了PostgreSql数据库的连接方法，其它数据库可以做为参考，添加Npgsql、Npgsql.EntityFrameworkCore.PostgreSQL引用，目录结构如下
• 
• 创建数据库DBContext类

• using System;
  using System.Collections.Generic;
  using System.Text;
  using Microsoft.EntityFrameworkCore;
  
  namespace QuartzPro.DbContext
  {
      public class PostgreDbContext : Microsoft.EntityFrameworkCore.DbContext
      {
          private string _conn;
          public PostgreDbContext(DbContextOptions<PostgreDbContext> options) : base(options)
          {
          }
          public PostgreDbContext(string conn)
          {
              _conn = conn;
          }
  
          protected override void OnModelCreating(ModelBuilder builder)
          {
              base.OnModelCreating(builder);
              //builder.Entity<syrequest_main>().ToTable("book", "pro");
          }
           
         // public virtual DbSet<book> book { get; set; }
  
      }
  }

• 创建Job类

• using System;
  using System.Collections.Generic;
  using System.IO;
  using System.Text;
  using System.Threading.Tasks;
  using Microsoft.Extensions.Logging;
  using Quartz;
  
  namespace QuartzPro.Jobs
  {
      public class SyncUserInfoService : IJob
      {
          private readonly ILogger<SyncUserInfoService> _logger;
  
          public SyncUserInfoService()
          {
              _logger = BootStrapIoc.GetService<ILoggerFactory>().CreateLogger<SyncUserInfoService>();
          }
          public Task Execute(IJobExecutionContext context)
          {
              _logger.LogDebug($"SyncUserInfoService Execute start...");
              return Task.Run(() =>
              {
                  using (StreamWriter sw = new StreamWriter(@"D:print.txt", true, Encoding.UTF8))
                  {
                      sw.WriteLine(DateTime.Now + "任务执行中...");
                      sw.Close();
                  }
              });
          }
      }
  }

• 创建依赖注入类

• using Microsoft.Extensions.Configuration;
  using Microsoft.Extensions.DependencyInjection;
  using Microsoft.Extensions.Logging;
  using QuartzPro.DbContext;
  
  namespace QuartzPro
  {
      public static class BootStrapIoc
      {
          /// <summary>
          /// IOC容器
          /// </summary>
          private static IServiceCollection serviceCollection { get; } = new ServiceCollection();
  
          /// <summary>
          /// 初始化IOC容器
          /// </summary>
          public static void InitIoc()
          {
  
              var configuration = new ConfigurationBuilder().AddJsonFile("appsettings.json", optional: true, reloadOnChange: true).AddEnvironmentVariables().Build();
  
              var identityConn = configuration.GetConnectionString("IdentityConnection");
              //db
              serviceCollection.AddTransient(_ => new  PostgreDbContext(identityConn));
              //log
              serviceCollection.AddLogging(configure =>
              {
                  configure.AddConfiguration(configuration.GetSection("Logging"));
                  configure.AddConsole();
              });
              //config
              serviceCollection.AddSingleton<IConfiguration>(configuration);
        
          }
  
          /// <summary>
          /// 获取实体
          /// </summary>
          /// <typeparam name="T"></typeparam>
          /// <returns></returns>
          public static T GetService<T>()
          {
              return serviceCollection.BuildServiceProvider().GetService<T>();
          }
      }
  }
  

  　　

• 创建任务监听XML文件

• <?xml version="1.0" encoding="utf-8" ?>
  <job-scheduling-data xmlns="http://quartznet.sourceforge.net/JobSchedulingData"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                   version="2.0">
  
    <processing-directives>
      <overwrite-existing-data>true</overwrite-existing-data>
    </processing-directives>
    <schedule>
    
      <!--同步用户信息：10分钟一次-->
      <job>
        <name>SyncUserInfoService</name>
        <group>GroupUserInfoManager</group>
        <description>同步用户信息</description>
        <job-type>QuartzPro.Jobs.SyncUserInfoService, QuartzPro</job-type>
        <durable>true</durable>
        <recover>false</recover>
      </job>
      <trigger>
        <cron>
          <name>TriggerSyncUserInfoService</name>
          <group>GroupTriggerUserInfoManager</group>
          <job-name>SyncUserInfoService</job-name>
          <job-group>GroupUserInfoManager</job-group>
          <start-time>2019-07-30T15:15:00.0Z</start-time>
          <cron-expression>0 0/10 * * * ?</cron-expression>
          <!--<cron-expression>1 0 0 * * ?</cron-expression>-->
        </cron>
      </trigger>
    </schedule>
  </job-scheduling-data>

• json配置文件

• {
    "Logging": {
      "LogLevel": {
        "Default": "Debug",
        "System": "Information",
        "Microsoft": "Information"
      },
      "Console": {
        "IncludeScopes": true
      }
    },
    "ConnectionStrings": {
      "IdentityConnection": "User ID=admin;Password=123456;Host=.;Port=5432;Database=identities;"
    }
  }

• Program类，注意该项目为控制台程序 UserInfoManager.xml和 appsettings.json，需要右键设置为可输出文件

• 
  using System;
  using System.Collections.Specialized;
  using System.Threading.Tasks;
  using Quartz;
  using Quartz.Impl;
  
  namespace QuartzPro
  {
      class Program
      {
          private static void Main(string[] args)
          {
              BootStrapIoc.InitIoc();
              var task = Run();
              task.Wait();
              task.ConfigureAwait(false);
              while (true)
              {
                  Console.Read();
              }
          }
          public static async Task Run()
          {
              try
              {
                  var properties = new NameValueCollection
                  {
                      ["quartz.plugin.triggHistory.type"] = "Quartz.Plugin.History.LoggingJobHistoryPlugin, Quartz.Plugins",
                      ["quartz.plugin.jobInitializer.type"] = "Quartz.Plugin.Xml.XMLSchedulingDataProcessorPlugin, Quartz.Plugins",
                      ["quartz.plugin.jobInitializer.fileNames"] = "UserInfoManager.xml",
                      ["quartz.plugin.jobInitializer.failOnFileNotFound"] = "true",
                      ["quartz.plugin.jobInitializer.scanInterval"] = "120"
                  };
                  ISchedulerFactory sf = new StdSchedulerFactory(properties);
                  IScheduler scheduler = await sf.GetScheduler();
                  Console.WriteLine("start the schedule");
                  await scheduler.Start();
                  Console.WriteLine("end");
              }
              catch (SchedulerException se)
              {
                  await Console.Error.WriteLineAsync(se.ToString());
              }
              catch (Exception ex)
              {
                  Console.Write($"err={ex.ToString()}");
              }
          }
      }
  }