描述
我有一个配置文件作为程序集中的资源,并希望在我的应用程序中以编程方式更改ConnectionString。
我使用log4net.Config.XmlConfigurator.Configure
来加载配置。
我设置了断点并发现配置已成功加载,并且连接字符串为Data Source=localhost\SQLExpress;Initial Catalog=Log;Integrated Security=SSPI;
(本地SQLExpress)。
问题
没有任何反应,没有异常和日志条目。 有什么想法吗?
using (Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("MyNamespace.Properties.log4net.config"))
{
// stream is NOT null
log4net.Config.XmlConfigurator.Configure(stream);
}
Hierarchy hier = LogManager.GetRepository() as Hierarchy;
if (hier != null)
{
//get ADONetAppender
var adoAppender = (AdoNetAppender)hier.GetAppenders().Where(appender => appender.Name.Equals("AdoNetAppender", StringComparison.InvariantCultureIgnoreCase)).FirstOrDefault();
if (adoAppender != null)
{
// update connectionstring
adoAppender.ConnectionString = configuration.GetConnectionString(ConnectionStringNames.Log).ConnectionString;
//refresh settings of appender
adoAppender.ActivateOptions();
}
}
ILog logger = LogManager.GetLogger("MyProject");
logger.Warn("Test");
log4net.config文件的内容
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
<appender name="AdoNetAppender" type="log4net.Appender.ADONetAppender">
<bufferSize value="1" />
<connectionType value="System.Data.SqlClient.SqlConnection, System.Data,
Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<connectionString value="[we will set this automatically at runtime]" />
<commandText value="INSERT INTO Log ([Date],[Level],[Logger],[Message],[Exception])
VALUES (@log_date, @log_level, @logger, @message, @exception)" />
<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%p" />
</layout>
</parameter>
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%c" />
</layout>
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%m" />
</layout>
</parameter>
<parameter>
<parameterName value="@exception" />
<dbType value="String" />
<size value="2000" />
<layout type="log4net.Layout.ExceptionLayout" />
</parameter>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="AdoNetAppender" />
</root>
</log4net>
</configuration>