blocks|key|4624774|text|我建议使用DelegatingHandler。然后，您将不需要担心控制器中的任何日志记录代码。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4624775|public+class+LogRequestAndResponseHandler+:+DelegatingHandler
{
++++protected+override+async+Task<HttpResponseMessage>+SendAsync(
++++++++HttpRequestMessage+request,+CancellationToken+cancellationToken)
++++{
++++++++if+(request.Content+!=+null)
++++++++{
++++++++++++//+log+request+body
++++++++++++string+requestBody+=+await+request.Content.ReadAsStringAsync();
++++++++++++Trace.WriteLine(requestBody);
++++++++}
++++++++//+let+other+handlers+process+the+request
++++++++var+result+=+await+base.SendAsync(request,+cancellationToken);

++++++++if+(result.Content+!=+null)
++++++++{
++++++++++++//+once+response+body+is+ready,+log+it
++++++++++++var+responseBody+=+await+result.Content.ReadAsStringAsync();
++++++++++++Trace.WriteLine(responseBody);
++++++++}

++++++++return+result;
++++}
}|code-block|syntax|javascript|4624776|只需将Trace.WriteLine替换为您的日志记录代码，并在WebApiConfig中注册处理程序，如下所示：|4624777|config.MessageHandlers.Add(new+LogRequestAndResponseHandler());|4624778|这是完整的微软Message+Handlers文档。|4624779|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/aspnet/web-api/overview/advanced/http-message-handlers^0|5|H|0|0|3|F|W|C|0|0|7|G|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|18|8|@]|D|@$9|19|A|1A|1|1B]]|E|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

I would recommend using a <code>DelegatingHandler</code>. Then you will not need to worry about any logging code in your controllers.

<pre><code>public class LogRequestAndResponseHandler : DelegatingHandler
{
 protected override async Task&lt;HttpResponseMessage&gt; SendAsync(
 HttpRequestMessage request, CancellationToken cancellationToken)
 {
 if (request.Content != null)
 {
 // log request body
 string requestBody = await request.Content.ReadAsStringAsync();
 Trace.WriteLine(requestBody);
 }
 // let other handlers process the request
 var result = await base.SendAsync(request, cancellationToken);

 if (result.Content != null)
 {
 // once response body is ready, log it
 var responseBody = await result.Content.ReadAsStringAsync();
 Trace.WriteLine(responseBody);
 }

 return result;
 }
}
</code></pre>

Just replace <code>Trace.WriteLine</code> with your logging code and register the handler in <code>WebApiConfig</code> like this:

<pre><code>config.MessageHandlers.Add(new LogRequestAndResponseHandler());
</code></pre>

Here is the full Microsoft documentation for <a href="https://docs.microsoft.com/en-us/aspnet/web-api/overview/advanced/http-message-handlers" rel="noreferrer">Message Handlers</a>.

blocks|key|119027|text|访问请求消息很容易。您的base+class,+ApiController包含.Request+property，顾名思义，它包含解析形式的请求。您只需检查要记录的内容，并将其传递给您的日志记录工具。如果你只需要为一个或几个人做这件事，你可以把这段代码放在你动作的开始。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|119028|如果您需要在所有操作上执行此操作(所有操作都意味着不只是几个可管理的操作)，那么您可以做的就是覆盖.ExecuteAsync方法来捕获控制器的每个操作调用。|119029|public+override+Task<HttpResponseMessage>+ExecuteAsync(
++++HttpControllerContext+controllerContext,
++++CancellationToken+cancellationToken
)
{
++++//+Do+logging+here+using+controllerContext.Request
++++return+base.ExecuteAsync(controllerContext,+cancellationToken);
}|code-block|syntax|javascript|119030|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.web.http.apicontroller%2528v=vs.118%2529.aspx|1|http://msdn.microsoft.com/en-us/library/system.web.http.apicontroller.request%2528v=vs.118%2529.aspx^0|O|D|13|8|C|P|0|13|H|1|0|1D|D|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]|$9|14|A|15|1|16]]|E|$]]|$1|F|3|G|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1A|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]]]

Getting access to request message is easy. Your <a href="http://msdn.microsoft.com/en-us/library/system.web.http.apicontroller%28v=vs.118%29.aspx" rel="nofollow">base class, <code>ApiController</code></a> contains <a href="http://msdn.microsoft.com/en-us/library/system.web.http.apicontroller.request%28v=vs.118%29.aspx" rel="nofollow"><code>.Request</code> property</a>, which, as name suggests, contains the request in parsed form. You simply examine it for whatever you're looking to log and pass it to your logging facility, whichever it may be. This code you can put in the beginning of your action, if you need to do it for just one or a handful.

If you need to do it on all actions (all meaning more than a manageable handful), then what you can do is override <code>.ExecuteAsync</code> method to capture every action call for your controller.

<pre><code>public override Task&lt;HttpResponseMessage&gt; ExecuteAsync(
 HttpControllerContext controllerContext,
 CancellationToken cancellationToken
)
{
 // Do logging here using controllerContext.Request
 return base.ExecuteAsync(controllerContext, cancellationToken);
}
</code></pre>

blocks|key|119056|text|你可以选择创建一个动作过滤器，并用它来装饰你的WebApiController/ApiMethod。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|119057|过滤器属性|119058|public+class+MyFilterAttribute+:+System.Web.Http.Filters.ActionFilterAttribute
++++{
++++++++public+override+void+OnActionExecuting(HttpActionContext+actionContext)
++++++++{
++++++++++++if+(actionContext.Request.Method+==+HttpMethod.Post)
++++++++++++{
++++++++++++++++var+postData+=+actionContext.ActionArguments;
++++++++++++++++//do+logging+here
++++++++++++}
++++++++}
++++}|code-block|syntax|javascript|119059|WebApi控制器|119060|[MyFilterAttribute]
public+class+ValuesController+:+ApiController{..}|119061|或|119062|[MyFilterAttribute]
public+void+Post([FromBody]string+value){..}|119063|希望这能有所帮助。|119064|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

One of the option you have is using creating a action filter and decorating your WebApiController/ApiMethod with it.

Filter Attribute

<pre><code>public class MyFilterAttribute : System.Web.Http.Filters.ActionFilterAttribute
 {
 public override void OnActionExecuting(HttpActionContext actionContext)
 {
 if (actionContext.Request.Method == HttpMethod.Post)
 {
 var postData = actionContext.ActionArguments;
 //do logging here
 }
 }
 }
</code></pre>

WebApi controller

<pre><code>[MyFilterAttribute]
public class ValuesController : ApiController{..}
</code></pre>

or 

<pre><code>[MyFilterAttribute]
public void Post([FromBody]string value){..}
</code></pre>

Hope this helps.

blocks|key|119102|text|这似乎是一个相当古老的主题，但我们分享了另一种解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|119103|您可以将此方法添加到您的global.asax文件中，该文件将在每次HTTP请求结束后触发。|119104|void+Application_EndRequest(Object+Sender,+EventArgs+e)
++++{
++++++++var+request+=+(Sender+as+HttpApplication).Request;
++++++++var+response+=+(Sender+as+HttpApplication).Response;

++++++++if+(request.HttpMethod+==+"POST"+%7C%7C+request.HttpMethod+==+"PUT")
++++++++{


++++++++++++byte[]+bytes+=+request.BinaryRead(request.TotalBytes);
++++++++++++string+body+=+Encoding.UTF7.GetString(bytes);
++++++++++++if+(!String.IsNullOrEmpty(body))
++++++++++++{


++++++++++++++++//+Do+your+logic+here+(Save+in+DB,+Log+in+IIS+etc.)
++++++++++++}
++++++++}
++++}|code-block|syntax|javascript|119105|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This seems to be a pretty old thread but worh sharing another solution.

You can add this method in your global.asax file which will be triggered every after HTTP request ends.

<pre><code>void Application_EndRequest(Object Sender, EventArgs e)
 {
 var request = (Sender as HttpApplication).Request;
 var response = (Sender as HttpApplication).Response;

 if (request.HttpMethod == "POST" || request.HttpMethod == "PUT")
 {


 byte[] bytes = request.BinaryRead(request.TotalBytes);
 string body = Encoding.UTF7.GetString(bytes);
 if (!String.IsNullOrEmpty(body))
 {


 // Do your logic here (Save in DB, Log in IIS etc.)
 }
 }
 }
</code></pre>

I am using Microsoft Asp.net WebApi2 hosted on IIS. I very simply would like to log the request body (XML or JSON) and the response body for each post.

There is nothing special about this project or the controller processing the post. I am not interested in using logging frameworks like nLog, elmah, log4net, or the built-in tracing features of web API unless it is necessary to do so.

I am simply wanting to know where to put my logging code and how to get the actual JSON or XML from the incoming and outgoing request and response.

My controller post method:

<pre><code>public HttpResponseMessage Post([FromBody])Employee employee)
{
 if (ModelState.IsValid)
 {
 // insert employee into to the database
 }

}
</code></pre>

Need to log asp.net webapi 2 request and response body to a database

JSON

我正在使用托管在IIS上的Microsoft Asp.net WebApi2。我只想记录每个帖子的请求正文(XML或JSON)和响应正文。这个项目和处理post的控制器没有什么特别之处。除非有必要，否则我对使用nLog、elmah、log4net等日志记录框架或web的内置跟踪功能不感兴趣。我只是想知道把我的日志代码放...

问需要将asp.net webapi 2请求和响应正文记录到数据库中
EN

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