写了一个log4net的扩展，有兴趣的看看，高手提提改进意见。

Question

写了一个log4net的扩展，看过别人写的扩展，觉的不灵活，重写了一下，通过返射自动取属性，特别通用。
大家多提意见。using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net.Core;
using log4net;
using System.Reflection;
namespace mylognet
{
    public class MyLogImpl : LogImpl, IMyLog
    {
        private readonly static Type ThisDeclaringType = typeof(MyLogImpl);
        List<String> propList =new List<string>();
        public MyLogImpl(ILogger logger)
           : base(logger)
        {        }
        public void InitpropList(List<String> lst)
        {
            propList = lst;
        }
        private LoggingEvent CreateLogEvent(Object obj,Exception t)
        {
            if (propList.Count == 0)
            {
                throw new Exception("还没有调用InitpropList(List<String> lst),一定要先调用此函数才可用Ex扩展log!");
            }
            String msg=obj.ToString();
            LoggingEvent loggingEvent =new LoggingEvent(ThisDeclaringType, Logger.Repository,                                     Logger.Name, Level.Info,msg,t);
            Type tp=obj.GetType();           
            foreach (String prop in propList)
            {
                PropertyInfo mdinfo = tp.GetProperty(prop);
                loggingEvent.Properties[prop] = mdinfo.GetGetMethod().Invoke(obj, null);
            }
            return loggingEvent;
        }
        public void DebugEx(Object obj)
        {
            DebugEx(obj, null);
        }
        public void DebugEx(Object obj, System.Exception t)
        {
            if (this.IsDebugEnabled)
            {
                LoggingEvent loggingEvent = CreateLogEvent(obj,t);
                Logger.Log(loggingEvent);
            }
        }
        public void InfoEx(Object obj)
        {            InfoEx(obj, null);        }
        public void InfoEx(Object obj, System.Exception t)
        {            if (this.IsInfoEnabled)
            {
                LoggingEvent loggingEvent = CreateLogEvent(obj, t);
                Logger.Log(loggingEvent);
            }
        }
       public void WarnEx(Object obj)
        {            WarnEx(obj, null);        }
        public void WarnEx(Object obj, System.Exception t)
        {            if (this.IsWarnEnabled)
            {
                LoggingEvent loggingEvent = CreateLogEvent(obj, t);
                Logger.Log(loggingEvent);            }        }
        public void ErrorEx(Object obj)
        {            ErrorEx(obj, null);        }
        public void ErrorEx(Object obj, System.Exception t)
        {            if (this.IsErrorEnabled)
            {
                LoggingEvent loggingEvent = CreateLogEvent(obj, t);
                Logger.Log(loggingEvent);
            }        }
        public void FatalEx(Object obj)
        {            FatalEx(obj, null);        }
        public void FatalEx(Object obj, System.Exception t)
        {            if (this.IsFatalEnabled)
            {
                LoggingEvent loggingEvent = CreateLogEvent(obj, t);
                Logger.Log(loggingEvent);
            }
        }
    }    public class MyLogManager    {        private static readonly WrapperMap s_wrapperMap = new WrapperMap(new WrapperCreationHandler(WrapperCreationHandler));        private MyLogManager() { }
        public static IMyLog Exists(string name)
        {
            return Exists(Assembly.GetCallingAssembly(), name);
        }
        public static IMyLog Exists(string domain, string name)
        {
            return WrapLogger(LoggerManager.Exists(domain, name));
        }
        public static IMyLog Exists(Assembly assembly, string name)        
        {     
            return WrapLogger(LoggerManager.Exists(assembly, name));
        }
        public static IMyLog[] GetCurrentLoggers()
        {
            return GetCurrentLoggers(Assembly.GetCallingAssembly());
        }
        public static IMyLog[] GetCurrentLoggers(string domain)
        {
            return WrapLoggers(LoggerManager.GetCurrentLoggers(domain));
        }        public static IMyLog[] GetCurrentLoggers(Assembly assembly)
        {
            return WrapLoggers(LoggerManager.GetCurrentLoggers(assembly));
        }
        public static IMyLog GetLogger(string name)
        {
            return GetLogger(Assembly.GetCallingAssembly(), name);
        }
        public static IMyLog GetLogger(string domain, string name)
        {
            return WrapLogger(LoggerManager.GetLogger(domain, name));
        }        public static IMyLog GetLogger(Assembly assembly, string name)
        {
            return WrapLogger(LoggerManager.GetLogger(assembly, name));
       }        public static IMyLog GetLogger(Type type)
        {
           return GetLogger(Assembly.GetCallingAssembly(), type.FullName);
        }
        public static IMyLog GetLogger(string domain, Type type)
        {
            return WrapLogger(LoggerManager.GetLogger(domain, type));
        }
        public static IMyLog GetLogger(Assembly assembly, Type type)
        {
           return WrapLogger(LoggerManager.GetLogger(assembly, type));
        }
        private static IMyLog WrapLogger(ILogger logger)
        {
            return (IMyLog)s_wrapperMap.GetWrapper(logger);
        }
        private static IMyLog[] WrapLoggers(ILogger[] loggers)
        {
            IMyLog[] results = new IMyLog[loggers.Length];            for (int i = 0; i < loggers.Length; i++)            {                results[i] = WrapLogger(loggers[i]);            }            return results;
        }
        private static ILoggerWrapper WrapperCreationHandler(ILogger logger)        {            return new MyLogImpl(logger);        }    }
    public interface IMyLog : ILog
    {
        void InitpropList(List<String> lst);
        void DebugEx(Object obj);
        void DebugEx(Object obj, Exception t);
        void InfoEx(Object obj);
        void InfoEx(Object obj, Exception t);
        void WarnEx(Object obj);
        void WarnEx(Object obj, Exception t);
        void ErrorEx(Object obj);
        void ErrorEx(Object obj, Exception t);
        void FatalEx(Object obj);
        void FatalEx(Object obj, Exception t);    }
}

Answer 1

配置文件
<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="log4net" type="System.Configuration.IgnoreSectionHandler"/>
  </configSections>
  <log4net>
    <!--定义输出到文件中-->
    <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
      <!--定义文件存放位置-->
      <file value="d:\log4netfile.txt"/>
      <appendToFile value="true"/>
      <rollingStyle value="Date"/>
      <datePattern value="yyyyMMdd-HH:mm:ss"/>
      <layout type="log4net.Layout.PatternLayout">
        <!--每条日志末尾的文字说明-->
        <footer value="by Guo"/>
        <!--输出格式-->
        <!--样例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info-->
        <conversionPattern value="记录时间：%date 属性GUO：%property{Guo} 属性Jian：%property{Jian}：属性Zhi%property{Zhi}"/>
      </layout>
    </appender>
    <!--定义输出到控制台命令行中-->
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>
      </layout>
    </appender>
    <!--定义输出到windows事件中-->
    <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>
      </layout>
    </appender>
    <!--定义输出到数据库中，这里举例输出到Access数据库中，数据库为C盘的log4net.mdb-->
    <appender name="AdoNetAppender_MySQL" type="log4net.Appender.AdoNetAppender">
      <param name="ConnectionType" value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data"/>
      <param name="ConnectionString" value="server=localhost;user id=swbbgl; password=swbbgl; database=swbbgl;old syntax=yes"/>
      <CommandText value="INSERT INTO log4_net(Log_Date,Thread,Level,Logger,Message) VALUES (@logDate, @thread, @logLevel, @logger,@message)"/>
      <!--定义各个参数-->
      <parameter>
        <parameterName value="@logDate"/>
        <dbType value="String"/>
        <size value="40"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%date"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@thread"/>
        <dbType value="String"/>
        <size value="40"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%thread"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@logLevel"/>
        <dbType value="String"/>
        <size value="40"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%level"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@logger"/>
        <dbType value="String"/>
        <size value="40"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%logger"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@message"/>
        <dbType value="String"/>
        <size value="240"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%message"/>
        </layout>
      </parameter>
    </appender>
    <!--定义日志的输出媒介，下面定义日志以四种方式输出。也可以下面的按照一种类型或其他类型输出。-->
    <root>
      <!--文件形式记录日志-->
      <appender-ref ref="LogFileAppender"/>
      <!--控制台控制显示日志-->
      <appender-ref ref="ConsoleAppender"/>
      <!--Windows事件日志-->
      <appender-ref ref="EventLogAppender"/>
      <appender-ref ref="AdoNetAppender_MySQL"/>
     <!-- 如果不启用相应的日志记录，可以通过这种方式注释掉
      <appender-ref ref="AdoNetAppender_Access" />
      -->
    </root>
    <logger name="Test">
<level value="ERROR"/>
<appender-ref ref="LogFileAppender"/>
    </logger>

  </log4net>  <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup>
</configuration>
测试代码
public partial class Form1 : Form
    {
        List<String> proList = new List<string>();
        public Form1()
        {
            InitializeComponent();
            proList = typeof(TestObj).GetProperties(System.Reflection.BindingFlags.Public).Select(x => x.Name).ToList();
            log4net.Config.XmlConfigurator.Configure(new FileInfo("c:\\lognet4.xml"));
            TestLog();
        }
        private void TestLog()
        {
            IMyLog log = MyLogManager.GetLogger("LogFileAppender");
          //  log.InitpropList(proList);
            TestObj obj1 = new TestObj() { Guo = 100, Jian = "TestJian" };
            TestObj obj2 = new TestObj() { Guo = 666, Jian = "this is test" };
            log.FatalEx(obj1);
            log.FatalEx(obj2);
        }
    }
    public class TestObj
    {
        public int Guo { get; set; }
        public String Jian { get; set; }
        public DateTime Zhi { get { return DateTime.Now; } }
        public override string ToString()
        {
            return Guo.ToString()+Jian+Zhi.ToString();
        }
    }我用的是LogFileAppender。
  <conversionPattern value="记录时间：%date 属性GUO：%property{Guo} 属性Jian：%property{Jian}：属性Zhi%property{Zhi}"/>