从本章开始对框架的讲叙开始进入核心类库的讲解，前面都是对框架外在功能讲解，让人有个整体的概念，知道包含哪些功能与对系统开发有什么帮助。以后多章都是讲解核心类库的，讲解的方式基本按照代码的目录结构，这样阅读代码的时候也可以针对性看；还有就是为了更好理解文章中的内容把目前还不够完善的源代码发布，这个版本Winform部分基本可以直接运行，而Web部分与WCF部分的控制器代码没有完成，所以暂时还运行不起来，不过这并不影响学习核心类库，再就是尽快在下个版本发布一个完整版本给大家；
EnterpriseFrameWork框架源代码V1.0下载：http://pan.baidu.com/s/1pJsMLlx
本文要点：
1.EntLib配置文件
2.对EntLib进行封装
3.EntLib实现数据库访问
4.EntLib实现错误日志记录
5.EntLib实现缓存管理
6.EntLib实现AOP与对象创建
核心类库EFWCoreLib目录结构
EnterpriseFrameWork框架的底层功能是使用微软企业库（EntLib）来实现的，包括使用EntLib的The Data Access Application Block实现数据库访问，The Caching Application Block进行缓存管理，The Exception Handling Application Block进行异常处理，The Logging Application Block进行日志记录，Unity Dependency Injection and Interception依赖注入容器进行对象映射；在这些功能之上再进行了一次封装，让我们再编写代码过程中更简单的运用，还有就算EntLib以后升级也不需要修改系统中的代码；
微软企业库的一些学习资料：
Enterprise Library 5.0.msi安装包：http://pan.baidu.com/s/1gdnDz7l
Enterprise Library 5.0说明文档：http://pan.baidu.com/s/1pJjtvCZ
CHM版说明文档：http://pan.baidu.com/s/1c0rhtba
学习实例代码：http://pan.baidu.com/s/1dDthk3Z
Enterprise Library 5.0源代码：http://pan.baidu.com/s/1mgKDot6
黄聪：Enterprise Library 5.0 系列教程：http://www.cnblogs.com/huangcong/archive/2010/06/08/1753988.html
一、EntLib配置文件
我们先看web项目Web.config中对EntLib的配置，Winform项目中的是App.config
其中标记的红色部分指定了EntLib的完整配置文件Entlib.config，
<configuration> <configSections> <section name="exceptionHandling" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Configuration.ExceptionHandlingSettings, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> <section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> <section name="cachingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerSettings, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> </configSections> <dataConfiguration defaultDatabase="SQL2005" /> <connectionStrings> <add name="SQL2005" connectionString="Data Source=.;Initial Catalog=3yxx_Cssd;User ID=sa;pwd=1;" providerName="System.Data.SqlClient" /> </connectionStrings> <exceptionHandling> <exceptionPolicies> <add name="HISPolicy"> <exceptionTypes> <add name="All Exceptions" type="System.Exception, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" postHandlingAction="NotifyRethrow"> <exceptionHandlers> <add name="Logging Exception Handler" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" logCategory="FileLog" eventId="100" severity="Error" title="Enterprise Library Exception Handling" formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling" priority="0" /> </exceptionHandlers> </add> </exceptionTypes> </add> </exceptionPolicies> </exceptionHandling> <loggingConfiguration name="" tracingEnabled="true" defaultCategory="ConsoleLog"> <listeners> <add listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.CustomTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" type="EFWCoreLib.CoreFrame.EntLib.Log.TraceListeners.ConsoleTraceListener, EFWCoreLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" traceOutputOptions="None" name="ConsoleTraceListener" /> <add listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.CustomTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" type="EFWCoreLib.CoreFrame.EntLib.Log.TraceListeners.FileTraceListener, EFWCoreLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="FileTraceListener" /> <add listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.CustomTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" type="EFWCoreLib.CoreFrame.EntLib.Log.TraceListeners.DatabaseTraceListener, EFWCoreLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="DatabaseTraceListener" /> <add name="Email Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.EmailTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.EmailTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" toAddress="to@example.com" fromAddress="from@example.com" filter="Off" /> <add name="Event Log Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" source="Enterprise Library Logging" formatter="Text Formatter" log="" machineName="." traceOutputOptions="None" filter="Error" /> <add name="Flat File Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" fileName="trace.log" formatter="Text Formatter" /> </listeners> <formatters> <add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" template="Timestamp: {timestamp}{newline}
Message: {message}{newline}
Category: {category}{newline}
Priority: {priority}{newline}
EventId: {eventid}{newline}
Severity: {severity}{newline}
Title:{title}{newline}
Machine: {localMachine}{newline}
App Domain: {localAppDomain}{newline}
ProcessId: {localProcessId}{newline}
Process Name: {localProcessName}{newline}
Thread Name: {threadName}{newline}
Win32 ThreadId:{win32ThreadId}{newline}
Extended Properties: {dictionary({key} - {value}{newline})}" name="Text Formatter" /> <add type="EFWCoreLib.CoreFrame.EntLib.Log.Formatters.ZhyTextFormatter, EFWCoreLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="ZhyTextFormatter" /> </formatters> <categorySources> <add switchValue="All" name="ConsoleLog"> <listeners> <add name="ConsoleTraceListener" /> </listeners> </add> <add switchValue="All" name="FileLog"> <listeners> <add name="Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="DatabaseLog"> <listeners> <add name="DatabaseTraceListener" /> </listeners> </add> <add switchValue="All" name="EmailLog"> <listeners> <add name="Email Trace Listener" /> </listeners> </add> </categorySources> <specialSources> <allEvents switchValue="All" name="All Events" /> <notProcessed switchValue="All" name="Unprocessed Category" /> <errors switchValue="All" name="Logging Errors & Warnings"> <listeners> <add name="Event Log Listener" /> </listeners> </errors> </specialSources> </loggingConfiguration> <cachingConfiguration defaultCacheManager="Cache Manager"> <cacheManagers> <add name="Cache Manager" type="Microsoft.Practices.EnterpriseLibrary.Caching.CacheManager, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" expirationPollFrequencyInSeconds="60" maximumElementsInCacheBeforeScavenging="1000" numberToRemoveWhenScavenging="10" backingStoreName="NullBackingStore" /> </cacheManagers> <backingStores> <add type="Microsoft.Practices.EnterpriseLibrary.Caching.BackingStoreImplementations.NullBackingStore, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="NullBackingStore" /> </backingStores> </cachingConfiguration> </configuration>