diff --git a/sample-code/codeView.html b/sample-code/codeView.html
index d7d9bc7e8..0f19d0869 100644
--- a/sample-code/codeView.html
+++ b/sample-code/codeView.html
@@ -148,6 +148,13 @@ public class XXXDBTracingDriver extends TracingDriver {
<url-patternr>/request-uri</url-patternr>
</filter-mappingr>
+
+ 如何通过HttpClient追踪HTTP调用？
+
+ 使用SWTracingHttpClient封装所需的httpClient，此httpClient所有调用都会被监控
+ HttpClient httpclient = new SWTracingHttpClient(new DefaultHttpClient());
+ 上下文将被存储在http request head，中，默认名称和SkyWalkingFilter保持一致。如果使用dubbox的rest提供的http请求，请使用方法重载
+ HttpClient httpclient = new SWTracingHttpClient(new DefaultHttpClient(), "");