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。
/// <summary> /// cat中使用的HttpClient /// </summary> public class CatHttpClient { /// <summary> /// 返回当前Cat上下文 /// </summary> /// <returns></returns> 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; } /// <summary> /// Post数据 /// </summary> /// <param name="requestUri"></param> /// <param name="content"></param> /// <returns></returns> 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; } } /// <summary> /// Get数据 /// </summary> /// <param name="requestUri"></param> /// <returns></returns> 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：实时监控Cat之旅~对Get和Post进行封装，支持分布式消息树，如需转载请自行联系原博主。
