测试网站是否在C＃应用程序中仍然存在 [英] Test if a website is alive from a C# application

问题描述

我正在寻找测试网站是否在C＃应用程序中存活的最佳方法。

I am looking for the best way to test if a website is alive from a C# application.

我的应用程序由一个 Winforms UI ，后端 WCF服务和网站，用于将内容发布到UI和其他使用者。为了防止由于缺少WCF服务或网站关闭而导致UI启动并无法正常工作的情况，我添加了应用启动检查，以确保所有功能均有效。

My application consists of a Winforms UI, a backend WCF service and a website to publish content to the UI and other consumers. To prevent the situation where the UI starts up and fails to work properly because of a missing WCF service or website being down I have added an app startup check to ensure that all everything is alive.

该应用程序是用C＃、. NET 3.5，Visual Studio 2008编写的。

The application is being written in C#, .NET 3.5, Visual Studio 2008

当前，我正在向测试页面发出Web请求在网站上会依次测试该网站，然后显示结果。

Currently I am making a web request to a test page on the website that will inturn test the web site and then display a result.

WebRequest request = WebRequest.Create("http://localhost/myContentSite/test.aspx");
WebResponse response = request.GetResponse();

我假设如果在此调用过程中没有抛出异常，那么一切都很好，UI可以启动。

I am assuming that if there are no exceptions thown during this call then all is well and the UI can start.

这是最简单，正确的方法吗？还是在C＃中我不知道的其他偷偷摸摸的电话还是更好的方法

Is this the simplest, right way or is there some other sneaky call that I don't know about in C# or a better way to do it.

推荐答案

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
if (response == null || response.StatusCode != HttpStatusCode.OK)

如@Yanga所述，HttpClient可能是现在更常用的方法。

As @Yanga mentioned, HttpClient is probably the more common way to do this now.

HttpClient client = new HttpClient();
var checkingResponse = await client.GetAsync(url);
if (!checkingResponse.IsSuccessStatusCode)
{
   return false;
}

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