Question

我想在asp.net中创建一个自定义HTTP模块。 This article显示了如何操作我按照步骤操作，这是继承自IHttpModule

的类

public class LanguageModule : IHttpModule
{

    public void Init(HttpApplication context)
    {
        context.AcquireRequestState += new EventHandler(OnAcquireRequestState);
    }

    public void Dispose()
    {

    }

    public void OnAcquireRequestState(Object i_object, EventArgs i_eventArgs)
    {
        HttpApplication l_httpApplication = i_object as HttpApplication;

        // check whether the language change parameter has been passed
        var l_language =
            l_httpApplication.Request.Params[Constants.SESSION_LANGUAGE];
        var l_boolLanguageChanged = false;
        if (l_language == null)
        {
            // if language parameter is not sent, then take language from session
            l_language = (string)l_httpApplication.Session[Constants.SESSION_LANGUAGE];
        }
        else
        {
            // If language parameter is indeed sent, then user wants to change language.
            // I will make sure I tag this in order to redirect to.
            l_boolLanguageChanged = true;
        }

        // having the language a thand, let us set it.
        var l_culture = new System.Globalization.CultureInfo(l_language);

        Thread.CurrentThread.CurrentCulture = l_culture;
        Thread.CurrentThread.CurrentUICulture = l_culture;

        // save language to session
        l_httpApplication.Session[Constants.SESSION_LANGUAGE] = l_language;

        // check whether I have redirect
        if (l_boolLanguageChanged && l_httpApplication.Request.UrlReferrer != null)
        {
            l_httpApplication.Response.Redirect(
               l_httpApplication.Request.UrlReferrer.AbsolutePath);
        }

    } // OnAcquireRequestState
    //-------------------------

} // class LanguageModule

然后我在web.config文件中注册了这个模块，如此

<httpModules>
       <add name="LanguageSettingModule" type="LanguageModule, App_Code" />
</httpModules>

我还尝试在system.web标签下注册，如此

<system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
        <add name="LanguageSettingModule" type="LanguageModule, App_Code" />
    </modules>
</system.webServer>

文件LanguageModule位于App_Code文件夹

下

但我总是收到此错误

无法从程序集加载类型＆＃39; App_Code＆＃39;。

Answer 1

从配置设置中删除App_Code。在web.config中，它应如下所示。即使您链接的MSDN文档也显示相同的注册方式。

<httpModules>
       <add name="LanguageSettingModule" type="LanguageModule" />
</httpModules>

无法从程序集中加载类型＆＃39; App_Code＆＃39;

1 个答案: