C#:如何以编程方式检查 Web 服务是否已启动并正在运行? [英] C#: How to programmatically check a web service is up and running?

问题描述

我需要创建一个 C# 应用程序来监视一组 Web 服务是否已启动并正在运行.用户将从下拉列表中选择一个服务名称.程序需要用对应的服务 URL 进行测试，显示服务是否正在运行.最好的方法是什么?我想到的一种方法是测试我们是否能够下载 wsdl.有没有更好的办法?

I need to create an C# application that will monitor whether a set of web services are up and running. User will select a service name from a dropdown. The program need to test with the corresponding service URL and show whether the service is running. What is the best way to do it? One way I am thinking of is to test whether we are able to download the wsdl. IS there a better way?

注意:此应用程序的目的是用户只需要知道服务名称.他不需要记住/存储服务的相应 URL.

Note: The purpose of this application is that the user need to know only the service name. He need not remember/store the corresponding URL of the service.

我需要这个 C# 应用程序的网站版本和桌面应用程序版本.

I need a website version and a desktop application version of this C# application.

注意:现有服务正在使用 WCF.但将来可能会添加非 WCF 服务.

Note: Existing services are using WCF. But in future a non-WCF service may get added.

注意:我的程序不会知道(或不感兴趣)服务中的操作.所以我无法调用服务操作.

Note: My program will not be aware of (or not interested in ) operations in the service. So I cannot call a service operation.

参考

1. 如何在不使用 ping 的情况下检查 Web 服务是否已启动并正在运行?
2. C 程序-How do我检查网络服务是否正在运行

推荐答案

这不能保证功能，但至少您可以检查到 URL 的连接性:

this would not guarantee functionality, but at least you could check connectivity to a URL:

var url = "http://url.to.che.ck/serviceEndpoint.svc";

try
{
    var myRequest = (HttpWebRequest)WebRequest.Create(url);

    var response = (HttpWebResponse)myRequest.GetResponse();

    if (response.StatusCode == HttpStatusCode.OK)
    {
        //  it's at least in some way responsive
        //  but may be internally broken
        //  as you could find out if you called one of the methods for real
        Debug.Write(string.Format("{0} Available", url));
    }
    else
    {
        //  well, at least it returned...
        Debug.Write(string.Format("{0} Returned, but with status: {1}", 
            url, response.StatusDescription));
    }
}
catch (Exception ex)
{
    //  not available at all, for some reason
    Debug.Write(string.Format("{0} unavailable: {1}", url, ex.Message));
}

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