log4net日志输出配置即输出到文件又输出到visual studio的output窗口

<configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" /> </configSections> <log4net> <appender name="LogFileAppender" type="log4net.Appender.FileAppender"> <param name="File" value="LogTest2.txt" /> <param name="AppendToFile" value="true" /> <layout type="log4net.Layout.PatternLayout"> <param name="Header" value="[Header]\r\n" /> <param name="Footer" value="[Footer]\r\n" /> <param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" /> </layout> </appender> <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" > <layout type="log4net.Layout.PatternLayout"> <param name="Header" value="[Header]\r\n" /> <param name="Footer" value="[Footer]\r\n" /> <param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" /> </layout> </appender> <root> <level value="INFO" /> <appender-ref ref="LogFileAppender" /> <appender-ref ref="ConsoleAppender" /> </root> </log4net> </configuration>

log类文件
[assembly: log4net.Config.XmlConfigurator(ConfigFile="App.config",Watch = true)]
namespace LogTest
{
    public  class Logger
    {
        /// <summary>
        /// 输出日志到Log4Net
        /// </summary>
        /// <param name="t"></param>
        /// <param name="ex"></param>
        public static void WriteLog(Type t, Exception ex)
        {
            log4net.ILog log = log4net.LogManager.GetLogger(t);
            log.Error("Error", ex);
        }

        /// <summary>
        /// 输出日志到Log4Net
        /// </summary>
        /// <param name="t"></param>
        /// <param name="msg"></param>
        public static void WriteLog(Type t, string msg)
        {
            log4net.ILog log = log4net.LogManager.GetLogger(t);
            log.Error(msg);
        }

        public static void WriterInfoLog(Type t, string msg)
        {
            log4net.ILog log = log4net.LogManager.GetLogger(t);
            log.Info(msg);
        }
    }
}