发布:2022/4/3 0:38:11作者:管理员 来源:本站 浏览次数:926
本文主要根据中间件来实现对.net core webapi
中产生的请求和响应数据进行获取并存入日志文件中;
这里不详细介绍日志文件的使用。你可以自己接入NLog,log4net,Exceptionless等
创建接口记录的中间件
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using Microliu.Core.Loggers;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Internal;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Ptibro.Partner.API.Extensions
{
public class RequestResponseLoggingMiddleware
{
private readonly RequestDelegate _next;
private readonly ILogger _logger;
private SortedDictionary< string , object > _data;
private Stopwatch _stopwatch;
public RequestResponseLoggingMiddleware(RequestDelegate next, ILogger logger)
{
_next = next;
_logger = logger;
_stopwatch = new Stopwatch();
}
public async Task Invoke(HttpContext context)
{
_stopwatch.Restart();
_data = new SortedDictionary< string , object >();
HttpRequest request = context.Request;
_data.Add( "request.url" , request.Path.ToString());
_data.Add( "request.headers" , request.Headers.ToDictionary(x => x.Key, v => string .Join( ";" , v.Value.ToList())));
_data.Add( "request.method" , request.Method);
_data.Add( "request.executeStartTime" , DateTimeOffset.Now.ToString( "yyyy-MM-dd HH:mm:ss.fff" ));
// 获取请求body内容
if (request.Method.ToLower().Equals( "post" ))
{
// 启用倒带功能,就可以让 Request.Body 可以再次读取
request.EnableRewind();
Stream stream = request.Body;
byte [] buffer = new byte [request.ContentLength.Value];
stream.Read(buffer, 0, buffer.Length);
_data.Add( "request.body" , Encoding.UTF8.GetString(buffer));
request.Body.Position = 0;
}
else if (request.Method.ToLower().Equals( "get" ))
{
_data.Add( "request.body" , request.QueryString.Value);
}
// 获取Response.Body内容
var originalBodyStream = context.Response.Body;
using (var responseBody = new MemoryStream())
{
context.Response.Body = responseBody;
await _next(context);
_data.Add( "response.body" , await GetResponse(context.Response));
_data.Add( "response.executeEndTime" , DateTimeOffset.Now.ToString( "yyyy-MM-dd HH:mm:ss.fff" ));
await responseBody.CopyToAsync(originalBodyStream);
}
// 响应完成记录时间和存入日志
context.Response.OnCompleted(() =>
{
_stopwatch.Stop();
_data.Add( "elaspedTime" , _stopwatch.ElapsedMilliseconds + "ms" );
var json = JsonConvert.SerializeObject(_data);
_logger.Debug(json, "api" , request.Method.ToUpper());
return Task.CompletedTask;
});
}
/// <summary>
/// 获取响应内容
/// </summary>
/// <param name="response"></param>
/// <returns></returns>
public async Task< string > GetResponse(HttpResponse response)
{
response.Body.Seek(0, SeekOrigin.Begin);
var text = await new StreamReader(response.Body).ReadToEndAsync();
response.Body.Seek(0, SeekOrigin.Begin);
return text;
}
}
/// <summary>
/// 扩展中间件
/// </summary>
public static class RequestResponseLoggingMiddlewareExtensions
{
public static IApplicationBuilder UseRequestResponseLogging( this IApplicationBuilder app)
{
return app.UseMiddleware<RequestResponseLoggingMiddleware>();
}
}
}
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在startup.cs中Configure方法中使用中间件
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public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseErrorHandling(); // 全局异常尽量放上面
...
app.UseRequestResponseLogging();
...
app.UseExceptionless(Configuration);
app.UseMvc();
}
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现在请求一次看一下记录的效果:我的日志存在exceptionless上,如下图
解析json,记录的数据如下:
总结
以上所述是小编给大家介绍的.net core webapi通过中间件获取请求和响应内容的方法,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!
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