Ninject 中的 Httpcontext.Session 始终为 null

发布于 2024-12-19 04:18:15 字数 777 浏览 2 评论 0原文

我使用 ninject 注入 httpcontext，就像

private void RegisterDependencyResolver()
{
    HttpContextBase context = new HttpContextWrapper(HttpContext.Current);
    var kernel = new StandardKernel();
    kernel.Bind<ISession>().To<SessionService>()
                            .InRequestScope()
                           .WithConstructorArgument("context", ninjectContext => context);

    DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));
}

在 application_start 方法中调用 RegisterDependencyResolver() 一样。

该接口被注入到处理会话的类的构造函数中。

问题是会话从未初始化，所以我无法向其中添加任何内容。

任何类似 context.session["something"] ="something" 的代码都会引发空引用异常。

Application_Start 在生命周期中是否太早？我认为 .InRequestScope() 解决了这个问题，但它对我不起作用。

原文

I am injecting the httpcontext using ninject like this

private void RegisterDependencyResolver()
{
    HttpContextBase context = new HttpContextWrapper(HttpContext.Current);
    var kernel = new StandardKernel();
    kernel.Bind<ISession>().To<SessionService>()
                            .InRequestScope()
                           .WithConstructorArgument("context", ninjectContext => context);

    DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));
}

RegisterDependencyResolver() is called in the application_start method.

This interface is injected into the constructor of a class that handles session.

The problem is session is never initialised so I cant add anything to it.

Any code like context.session["something"] ="something" raises a null reference exception.

Is Application_Start too early in the lifecycle? I thought .InRequestScope() fixes this but it doesnt work for me.

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不必你懂 2024-12-26 04:18:15

如果您在 IIS 集成模式下运行，则无法访问 Application_Start 中的任何 Http 上下文对象。

尝试这样：

private void RegisterDependencyResolver()
{
    kernel
        .Bind<ISession>()
        .To<SessionService>()
        .InRequestScope()
        .WithConstructorArgument(
            "context", 
            ninjectContext => new HttpContextWrapper(HttpContext.Current)
        );

    DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));
}

If you are running in IIS integrated mode you don't have access to any Http context object in Application_Start.

Try like this:

private void RegisterDependencyResolver()
{
    kernel
        .Bind<ISession>()
        .To<SessionService>()
        .InRequestScope()
        .WithConstructorArgument(
            "context", 
            ninjectContext => new HttpContextWrapper(HttpContext.Current)
        );

    DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));
}

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