ASP.NET Core Web API-如何解析名称＆＃x27; addCronJobConfigurations＆＃x27;在当前上下文中不存在

Question

在ASP.NET Core-5 Web API中，我有：

startup.cs：

public void Configure(IApplicationBuilder app,
    IWebHostEnvironment env,
    IRecurringJobManager recurringJobManager,
    IServiceProvider serviceProvider)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
        // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
        app.UseHsts();
    }
    app.UseHttpsRedirection();
    app.UseStaticFiles();
    app.UseHangfireDashboard();

    app.UseRouting();

    app.UseAuthorization();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
    });

    var branchService = serviceProvider.GetService<IAdminBranchService>();

    recurringJobManager.AddOrUpdate("Post_All_Branches", () => branchService.CreateBranchAsync(), Cron.Minutely);
}

但是现在我正在使用ASP.NET Core-6 Web API。因此，对于hangfire cronjob，我创建了一个类，如下所示：

public static class CronJobExtension
{
    public static void AddCronJobConfigurations(IRecurringJobManager recurringJobManager, IServiceProvider serviceProvider)
    {
        var branchService = serviceProvider.GetService<IAdminBranchService>();

        recurringJobManager.AddOrUpdate("Post_All_Branches", () => branchService.CreateBranchAsync(), Cron.Minutely);
    }
}

所以我只有program.cs。然后，我在program.cs中引用了addcronjobconfiguration。

program.cs：

app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();
app.UseHangfireDashboard();

AddCronJobConfigurations();

但是我有一个错误：

错误CS0103名称“ AddCronJobConfigurations”在当前上下文中不存在

我如何解决此问题？

谢谢

Answer 1

您可以执行此操作：

CronJobExtension.AddCronJobConfigurations(recurringJobManager ,serviceProvider);

或使用此关键字创建一个扩展方法：

public static class CronJobExtension
{
    public static void AddCronJobConfigurations(this IServiceProvider serviceProvider, IRecurringJobManager recurringJobManager)
    {
        var branchService = serviceProvider.GetService<IAdminBranchService>();

        recurringJobManager.AddOrUpdate("Post_All_Branches", () => branchService.CreateBranchAsync(), Cron.Minutely);
    }
}

并以相同的方式使用它，使用略有不同的语法：

serviceProvider.AddCronJobConfigurations(recurringJobManager);