一、概述

log4net获取日志输出并显示到界面上

二、使用

 public void GetLogMessage()
        {
            var appender = log4net.Appender.MemoryAppender;
            if (appender == null)
            {
                return;
            }

            while (true)
            {
                try
                {
                    var level = log4net.Core.Level.All;

                    if (appender.Threshold != level)
                    {
                        appender.Threshold = level;
                    }

                    var list = appender.PopAllEvents();
                    var sb = new StringBuilder();
                    foreach (var item in list)
                    {
                        sb.AppendFormat("{1}【{0:yyyy-MM-dd HH:mm:ss.fff}】 {2}", item.TimeStamp, item.Level, item.RenderedMessage);
                        sb.AppendLine();

                        if (item.ExceptionObject != null)
                        {
                            sb.AppendLine(item.GetExceptionString());
                        }
                    }

                    if (sb.Length > 0)
                    {
                        this.Dispatcher.Invoke(() =>
                        {
                            try
                            {
                                if (tb_LogMsg.Text.Length > 1024 * 1024)
                                {
                                    tb_LogMsg.Text = tb_LogMsg.Text.Substring(tb_LogMsg.Text.Length - 1024 * 512);
                                }

                                tb_LogMsg.AppendText(sb.ToString());

                                tb_LogMsg.ScrollToVerticalOffset(double.MaxValue);
                            }
                            catch (Exception ex)
                            {
                                m_log.Error("更新日志信息到界面出错", ex);
                            }
                        });
                    }
                }
                catch (Exception ex)
                {
                    m_log.Error("刷新日志信息出错", ex);
                }

                Thread.Sleep(1000);
            }
        }

三、其他

3.1

3.2

3.3

四、省略