这个问题之所以存在,是因为它确实存在 具有历史意义,但事实并非如此 被认为是一个很好的主题问题 因为是本网站,所以请不要使用 作为证据,你可以问类似的问题 这里的问题。 更多信息:https://stackoverflow.com/faq


总有一些功能在边缘场景中很有用,但正是因为这个原因,大多数人都不知道它们。我要求的是课本上通常没有教过的特性。

你知道的是什么?


当前回答

HttpContext.Current will always give you access to the current context's Request/Response/etc., even when you don't have access to the Page's properties (e.g., from a loosely-coupled helper class). You can continue executing code on the same page after redirecting the user to another one by calling Response.Redirect(url, false ) You don't need .ASPX files if all you want is a compiled Page (or any IHttpHandler). Just set the path and HTTP methods to point to the class in the <httpHandlers> element in the web.config file. A Page object can be retrieved from an .ASPX file programmatically by calling PageParser.GetCompiledPageInstance(virtualPath,aspxFileName,Context)

其他回答

如果您放置一个名为app_offline.htm的文件 在一个web应用程序目录的根目录,ASP。NET 2.0+将关闭应用程序并停止对该应用程序的任何新传入请求的正常处理,只显示所有新请求的app_offline.htm文件的内容。

这是在将更改重新部署(或回滚)到生产服务器时显示“站点暂时不可用”通知的最快速和最简单的方法。

另外,正如marxidad所指出的,确保文件中至少有512字节的内容,这样IE6才能正确地呈现它。

throw new HttpException(404, "Article not found");

这将被ASP捕获。NET,它将返回customErrors页面。在最近的.NET每日小贴士中了解了这一点

你知道可以用ASP。IIS或Visual Studio之外的网络?

整个运行时都打包好了,可以在任何想要尝试的进程中托管。使用ApplicationHost, HttpRuntime和HttpApplication类,你也可以打磨这些.aspx页面,并从中得到漂亮的HTML输出。

HostingClass host = ApplicationHost.CreateApplicationHost(typeof(HostingClass), 
                                            "/virtualpath", "physicalPath");
host.ProcessPage(urlToAspxFile); 

你的主持课程:

public class HostingClass : MarshalByRefObject
{
    public void ProcessPage(string url)
    {
        using (StreamWriter sw = new StreamWriter("C:\temp.html"))
        {
            SimpleWorkerRequest worker = new SimpleWorkerRequest(url, null, sw);
            HttpRuntime.ProcessRequest(worker);
        }
                    // Ta-dah!  C:\temp.html has some html for you.
    }
}

If you use web services instead WCF services, you can still use standard .Net membership to enforce authentication and login session behaviour on a set web services similarly to a how you would secure web site with membership forms authentication & without the need for a special session and/or soap headers implementations by simply calling System.Web.Security.FormsAuthentication.SetAuthCookie(userName, false) [after calling Membership.ValidateUser(userName, password) of course] to create cookie in the response as if the user has logged in via a web form. Then you can retrieve this authentication cookie with Response.Cookies[].Value and return it as a string to the user which can be used to authenticate the user in subsequent calls by re-creating the cookie in the Application_BeginRequest by extracting the cookie method call param from the Request.InputStream and re-creating the auth cookie before the membership authenticates the request this way the membership provider gets tricked and will know the request is authenticated and enforce all its rules.

将此cookie返回给用户的示例web方法签名如下: 字符串登录(用户名、密码)

后续web方法调用示例如下: 字符串DoSomething(字符串authcookie,字符串methodParam1,int methodParam2等,等),你需要提取authcookie(这是从登录方法获得的值)参数从请求。InputStreamis

这也模拟了一个登录会话并调用FormsAuthentication。签出在web方法,如注销(authcookie)将 使用户需要再次登录。

请求。IsLocal属性:

它指示当前请求是否来自本地计算机。

if( Request.IsLocal )
{
   LoadLocalAdminMailSettings();
}
else
{
   LoadServerAdminMailSettings();
}