如何在 .NET Core WebAPI 中自动记录每个请求? [英] How to auto log every request in .NET Core WebAPI?

问题描述

我希望自动记录每个请求.在之前的 .Net Framwork WebAPI 项目中，我曾经注册了一个 delegateHandler 来这样做.

I'd like to have every request logged automatically. In previous .Net Framwork WebAPI project, I used to register a delegateHandler to do so.

WebApiConfig.cs

WebApiConfig.cs

public static void Register(HttpConfiguration config)
{
    config.MessageHandlers.Add(new AutoLogDelegateHandler());
}

AutoLogDelegateHandler.cs

AutoLogDelegateHandler.cs

public class AutoLogDelegateHandler : DelegatingHandler
{

    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var requestBody = request.Content.ReadAsStringAsync().Result;

        return await base.SendAsync(request, cancellationToken)
            .ContinueWith(task =>
            {
                HttpResponseMessage response = task.Result;

                //Log use log4net
                _LogHandle(request, requestBody, response);

                return response;
            });
    }
}

日志内容示例:

------------------------------------------------------
2017-08-02 19:34:58,840
uri: /emp/register
body: {
    "timeStamp": 1481013427,
    "id": "0322654451",
    "type": "t3",
    "remark": "system auto reg"
}
response: {"msg":"c556f652fc52f94af081a130dc627433","success":"true"}
------------------------------------------------------

但是在 .NET Core WebAPI 项目中，没有 WebApiConfig ，或者 Global.asax GlobalConfiguration.Configure(WebApiConfig.Register);

But in .NET Core WebAPI project, there is no WebApiConfig , or the register function at Global.asax GlobalConfiguration.Configure(WebApiConfig.Register);

那么有什么办法可以在 .NET Core WebAPI 中实现这一点吗?

So is there any way to achieve that in .NET Core WebAPI?

推荐答案

您可以创建自己的过滤器属性...

You can create your own filter attribute...

public class InterceptionAttribute : ActionFilterAttribute
{
  public override void OnActionExecuting(HttpActionContext actionContext)
  {
    var x = "This is my custom line of code I need executed before any of the controller actions, for example log stuff";
    base.OnActionExecuting(actionContext);
  }
}

...并且您将使用 GlobalFilters 注册它，但是既然您说您使用的是 .NET Core，那么您可以尝试继续...

... and you would register it with GlobalFilters, but since you said you're using .NET Core, this is how you can try proceeding...

来自 docs.microsoft.com:

您可以全局注册过滤器(适用于所有控制器和动作)通过将其添加到 MvcOptions.Filters 集合中Startup 类中的 ConfigureServices 方法:

You can register a filter globally (for all controllers and actions) by adding it to the MvcOptions.Filters collection in the ConfigureServices method in the Startup class:

让我们知道它是否有效.

Let us know if it worked.

附言这是一个关于使用 WebAPI 拦截请求的完整教程，以防万一有人需要更多详细信息.

P.S. Here's a whole tutorial on intercepting requests with WebAPI, in case someone needs more details.

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