Enterprise Library Logging 快速上手

      这篇文章将演示花费最小的代价使用Microsoft’s Enterprise Library 4.1在你的应用程序中记录日志。下面是一些细节，第一次如何在代码logging Message:

下载安装Enterprise Library 4.1

  让我们开始，创一个VS控制台程序名叫HelloWorldEntLibLogging,在项目中引用Ent. Lib. logging assembly，如图:

为应用程序配制Logging,增加一个App.config

在App.config文件上单击右键:

在弹出的菜单编辑器选择New | Logging Application Block

这时一个新的Logging Application Block 配制节点是这样的:

接着，打开App.config的XML内容是:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  </configSections>
  <loggingConfiguration name="Logging Application Block" tracingEnabled="true"
  defaultCategory="General" logWarningsWhenNoCategoriesMatch="true">
    <listeners>
      <add source="Enterprise Library Logging" formatter="Text Formatter"
        log="Application" machineName="" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        traceOutputOptions="None" filter="All" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      name="Formatted EventLog TraceListener" />
    </listeners>
    <formatters>
      <add template="Timestamp: {timestamp}&#xD;&#xA;Message: {message}&#xD;&#xA;Category: {category}&#xD;&#xA;Priority: {priority}&#xD;&#xA;EventId: {eventid}&#xD;&#xA;Severity: {severity}&#xD;&#xA;Title:{title}&#xD;&#xA;Machine: {machine}&#xD;&#xA;Application Domain: {appDomain}&#xD;&#xA;Process Id: {processId}&#xD;&#xA;Process Name: {processName}&#xD;&#xA;Win32 Thread Id: {win32ThreadId}&#xD;&#xA;Thread Name: {threadName}&#xD;&#xA;Extended Properties: {dictionary({key} - {value}&#xD;&#xA;)}"
        type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      name="Text Formatter" />
    </formatters>
    <categorySources>
      <add switchValue="All" name="General">
        <listeners>
          <add name="Formatted EventLog TraceListener" />
        </listeners>
      </add>
    </categorySources>
    <specialSources>
      <allEvents switchValue="All" name="All Events" />
      <notProcessed switchValue="All" name="Unprocessed Category" />
      <errors switchValue="All" name="Logging Errors &amp; Warnings">
        <listeners>
          <add name="Formatted EventLog TraceListener" />
        </listeners>
      </errors>
    </specialSources>
  </loggingConfiguration>
</configuration>

好的，让我们写一些Code:

    class Program
    {
        static void Main(string[] args)
        {
            LogEntry entry = new LogEntry()
            {
                Message = "Hello Ent. Lib. Logging"
            };
            Logger.Write(entry);
        }
    }

Ok,F5运行，打开Event Viewer:

然后记下来的细节信息是：

Timestamp: 1/20/2009 11:20:08 PM
Message: Hello Ent. Lib. Logging

Category: General

Priority: -1

EventId: 0

Severity: Information

Title:

Machine: BIGRED

Application Domain: HelloEntLibLogging.vshost.exe

Process Id: 5384

Process Name: C:\projects\sandbox\HelloEntLibLogging\HelloEntLibLogging\bin\Debug\HelloEntLibLogging.vshost.exe

Win32 Thread Id: 4512

Thread Name:

Extended Properties:

完了，希望这篇Post对您有帮助。

Author: Petter Liu    http://wintersun.cnblogs.com