ASP.Net Core 执行Cron定时任务

安装Hangfire

dotnet add package Hangfire.AspNetCore
如果只用内存的话
dotnet add package Hangfire.MemoryStorage

配置启动项Starup.cs

 public class Startup
         {
             public Startup(IConfiguration configuration)
             {
                 Configuration = configuration;
             }
     
             public IConfiguration Configuration { get; }
     
             public void ConfigureServices(IServiceCollection services)
             {
                 services.AddRazorPages();
                 services.AddHangfire(configuration => configuration
                     .UseMemoryStorage());//使用内存
                 services.AddHangfireServer();//添加hangfire服务
                 services.AddSingleton<MyJob>();//注册执行类
             }
     

             public void Configure(IApplicationBuilder app, IWebHostEnvironment env,MyJob myJob)//上面注册了所以这里可以注入
             {
                 if (env.IsDevelopment())
                 {
                     app.UseDeveloperExceptionPage();
                 }
                 else
                 {
                     app.UseExceptionHandler("/Error");
                     app.UseHsts();
                 }
     
                 app.UseHttpsRedirection();
                 app.UseStaticFiles();
     
                 app.UseRouting();
     
                 app.UseAuthorization();
     
                 app.UseEndpoints(endpoints => { endpoints.MapRazorPages(); });
                 
                 var options = new BackgroundJobServerOptions {SchedulePollingInterval = TimeSpan.FromSeconds(1.0)};//默认最小间隔为15s，这里设置成1s
                 app.UseHangfireServer(options);//注入配置
                 app.UseHangfireDashboard();//启动看板
                 RecurringJob.AddOrUpdate(() => myJob.sout(), "0/1 * * * * ?");//绑定触发器
             }
         }