如何使用Ninject将我的服务注入GetVaryByCustomString

public class MyCustomCacheVaryByService : ICustomCacheVaryByService
{
    public string GetVaryByCustomString(HttpContext context, string custom)
    {
        // 实现GetVaryByCustomString方法的逻辑
        // ...
        return custom;
    }
}

public class MyNinjectModule : NinjectModule
{
    public override void Load()
    {
        Bind<ICustomCacheVaryByService>().To<MyCustomCacheVaryByService>();
    }
}

protected void Application_Start()
{
    // 创建Ninject内核
    var kernel = new StandardKernel();
    // 加载Ninject模块
    kernel.Load(Assembly.GetExecutingAssembly());
    // 设置Ninject作为MVC的依赖解析器
    DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));
}

public override string GetVaryByCustomString(HttpContext context, string custom)
{
    var cacheVaryByService = DependencyResolver.Current.GetService<ICustomCacheVaryByService>();
    return cacheVaryByService.GetVaryByCustomString(context, custom);
}