实时监控Cat之旅~对Get和Post进行封装，支持分布式消息树-白红宇

对第三方接口的调用我们需要对GET和POST进行监控，看一些请求的执行是否成功，如A调用B，B调用C，C调用D，这一连串的东西需要我们使用cat进行记录，进行记录之后，我们可以很容易的发现请求响应的时间及是否出错，下面是我对这两种请求的封装。

///     /// cat中使用的HttpClient    /// 
    public class CatHttpClient    {        ///         /// 返回当前Cat上下文        /// 
        /// 
             static CatContext GetCurrentContext(string message)        {            string currentUrl = System.Web.HttpContext.Current.Request.Url.AbsoluteUri;            var context = PureCat.CatClient.GetCatContextFromServer();            if (context == null)            {                context = PureCat.CatClient.DoTransaction("xuexiba", currentUrl, () =>                {                    PureCat.CatClient.LogEvent("xuexiba", message, "0", currentUrl);                });            }            else            {                context = PureCat.CatClient.DoTransaction("xuexiba", currentUrl, () =>                {                    PureCat.CatClient.LogRemoteCallServer(context);                    PureCat.CatClient.LogEvent("xuexiba", message, "0", currentUrl);                });            }            return context;        }        ///         /// Post数据        /// 
        ///         ///         /// 
             public static HttpResponseMessage Post(string requestUri, HttpContent content)        {            var handler = new HttpClientHandler() { };            using (var http = new HttpClient(handler))            {                PureCat.CatClient.SetCatContextToServer(http, GetCurrentContext("Post Request Sent..."));                var response = http.PostAsync(requestUri, content).Result;                return response;            }        }        ///         /// Get数据        /// 
        ///         /// 
             public static HttpResponseMessage Get(string requestUri)        {            var handler = new HttpClientHandler() { };            using (var http = new HttpClient(handler))            {                PureCat.CatClient.SetCatContextToServer(http, GetCurrentContext("Get Request Sent..."));//设置接口api的头，发送                var response = http.GetAsync(requestUri).Result;                return response;            }        }    }

在程序中使用非常方便，如下代码，一看便知

[AllowAnonymous]        public void Step1()        {            Lind.DDD.CatClientPur.CatHttpClient.Get("Http://localhost:4829/AdminCommon/Step2");        }        [AllowAnonymous]        public void Step2()        {            Lind.DDD.CatClientPur.CatHttpClient.Get("Http://localhost:4829/AdminCommon/Step3");        }        [AllowAnonymous]        public void Step3()        {            Lind.DDD.CatClientPur.CatHttpClient.Get("Http://localhost:4829/AdminCommon/Step4");        }        [AllowAnonymous]        public void Step4()        {            Lind.DDD.CatClientPur.CatHttpClient.Get("Http://localhost:4829/AdminCommon/Error");        }

而它产生的消息树也是我们希望看到的，即从step1到step4的记录，如图

下一讲我们将读一下，如何对一个请求从开始到结束进行cat的监控，敬请期待！

本文转自博客园张占岭（仓储大叔）的博客，原文链接：，如需转载请自行联系原博主。