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  • netcore 中间件记录日志

    public class Logger
        {
            private static ILog logger;
           static Logger()
            {
                if (logger == null)
                {
                    var repository = LogManager.CreateRepository("NETCoreRepository");
                    //log4net从log4net.config文件中读取配置信息
                    XmlConfigurator.Configure(repository, new FileInfo("log4net.config"));
                    logger = LogManager.GetLogger(repository.Name, "Logger");
                }
            }
            private RequestDelegate _nextDelegate;
            public Logger(RequestDelegate nextDelegate)
            {
                _nextDelegate = nextDelegate;
            }
            public async Task Invoke(HttpContext httpContext)
            {
                logger.Info("start:" + DateTime.Now.ToString());
                await _nextDelegate.Invoke(httpContext);
                logger.Info("end:" + DateTime.Now.ToString());
            }
            public static void Info(string message, Exception exception = null)
            {
                if (exception == null)
                    logger.Info(message);
                else
                    logger.Info(message, exception);
            }
            public static void Warn(string message, Exception exception = null)
            {
                if (exception == null)
                    logger.Warn(message);
                else
                    logger.Warn(message, exception);
            }
            public static void Error(string message, Exception exception = null)
            {
                if (exception == null)
                    logger.Error(message);
                else
                    logger.Error(message, exception);
            }
        }

    然后,在startup.cs中增加

    public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
            {
                if (env.IsDevelopment())
                {
                    app.UseDeveloperExceptionPage();
                }
                else
                {
                    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                    app.UseHsts();
                }
    
                app.UseHttpsRedirection();
                app.UseMiddleware<Logger>();
                app.UseMvc();
                
            }

    所有中间件需要放在UseMvc前面

    测试

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  • 原文地址:https://www.cnblogs.com/huanyun/p/11365197.html
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