对Web服务调用中的会话的只读访问权限? [英] Readonly access to session in a web service call?

问题描述

我们有一个.net asmx Web服务，该服务从javascript中调用(使用ASP.Net AJAX)，并且需要访问Session.

We have a .net asmx web service that gets called from javascript (using ASP.Net AJAX), and requires access to Session.

[WebMethod(true)]
public string DoSomethingOnTheServer() { }

我们遇到了会话被读写请求锁定的问题.有什么方法可以将Web服务方法标记为需要对Session的只读访问权?

We're running into the problem of session being locked on a read/write request. Is there any way to mark a web service method as requiring read-only access to Session?

谢谢！

推荐答案

这是一个非常老的线程，但是我在寻找相同问题的答案时偶然发现了它.

This is a really old thread, but i stumbled on it in my search for an answer to the same question.

我在其他地方找到了答案，并将其留在这里供我使用其他互联网:

I found the answer else where, and will leave it here for other internets in my place:

在Global.asax中，您可以为每个请求指定请求对会话对象的访问权限，以及是否应阻止该访问对象.

In Global.asax you can specify for each request, what access the request should have to the session object, and thereby if it should block or not.

private void Application_BeginRequest(object sender, EventArgs e)
{
    // This will set the session to read only for asmx services
    // This will make the asmx services non blocking for other requests as it doesnt lock the session object
    if (Context.Request.Path.Contains(".asmx/"))
    {
        Context.SetSessionStateBehavior(SessionStateBehavior.ReadOnly);
    }
}

这样，asmx服务始终仅对会话具有只读访问权限，而不会阻止其他请求

This way asmx services always only have read only access to the session and will not block other requests

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