有时候，日志输出的时候会根据时间来分类，譬如“20140821\trace.log”，在EnterPRise Library中通过工具配置，只能定义日志文件名称，可以通过代码修改FlatFileTraceListenerData实现或Custom Trace Listener方式，
通过代码修改FlatFileTraceListenerData实现代码如下：
publicstaticstringGetTraceLogPath(stringlistenersName)
{string_tracePath =string.Empty;if(!string.IsNullOrEmpty(listenersName))
{
Configuration _etlConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
LoggingSettings _loggingSettings = (LoggingSettings)_etlConfig.GetSection(LoggingSettings.SectionName);
FlatFileTraceListenerData _listeners = _loggingSettings.TraceListeners.Get(listenersName)asFlatFileTraceListenerData;if(_listeners !=null)
{
_tracePath = _listeners.FileName;
}
}return_tracePath;
}publicstaticvoidSetTraceLogPath(stringlistenersName,stringfileName)
{if(!string.IsNullOrEmpty(listenersName) && !string.IsNullOrEmpty(fileName))
{
Configuration _etlConfig = ConfigurationManager.OpenExeConfiguration(System.Configuration.ConfigurationUserLevel.None);
LoggingSettings _loggingSettings = (LoggingSettings)_etlConfig.GetSection(LoggingSettings.SectionName);
FlatFileTraceListenerData _listeners = _loggingSettings.TraceListeners.Get(listenersName)asFlatFileTraceListenerData;if(_listeners !=null)
{
_listeners.FileName = fileName;
_etlConfig.Save();
}
}
}
测试代码：
try{string_listenName ="FlatFile TraceListener";
SetTraceLogPath(_listenName,string.Format(@"{0}/trace.log", DateTime.Now.ToString("yyyyMMdd")));
LogEntry log =newLogEntry();
log.Categories.Add("Warning");
log.Title ="测试";
log.Message ="日志日志内容";
Logger.Write(log);
LogEntry log2 =newLogEntry();
log2.Categories.Add("Warning");
log2.Title ="测试2";
log2.Message ="日志日志内容2";
Logger.Write(log2);
Console.WriteLine(GetTraceLogPath(_listenName));
}catch(Exception ex)
{
Console.WriteLine(ex.Message);
}finally{
Console.ReadLine();
}
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp{ background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }测试效果：
希望有所帮助