要使用log4net對(duì)SQL進(jìn)行監(jiān)控,您需要執(zhí)行以下步驟:
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
<appender name="sql" type="log4net.Appender.SqlAppender">
<connectionType value="System.Data.SqlClient" />
<connectionString value="YourConnectionString" />
<commandText value="INSERT INTO Log4NetSql (Date, Logger, Level, Message, Exception) VALUES (@Date, @Logger, @Level, @Message, @Exception)" />
<parameter>
<name value="@Date" />
<value type="System.DateTime" />
</parameter>
<parameter>
<name value="@Logger" />
<value type="System.String" />
</parameter>
<parameter>
<name value="@Level" />
<value type="System.String" />
</parameter>
<parameter>
<name value="@Message" />
<value type="System.String" />
</parameter>
<parameter>
<name value="@Exception" />
<value type="System.String" />
</parameter>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%class.%method:%line] - %message%newline" />
</layout>
</appender>
</log4net>
</configuration>
請(qǐng)確保將YourConnectionString
替換為您的數(shù)據(jù)庫(kù)連接字符串。
using log4net;
using log4net.Config;
public class MyClass
{
private static readonly ILog _log = LogManager.GetLogger(typeof(MyClass));
public void MyMethod()
{
try
{
// Your code here
}
catch (Exception ex)
{
_log.Error("An error occurred: " + ex.Message, ex);
}
}
}
// Configure log4net
var config = (log4net.Config.XmlConfigurator)LogManager.GetRepository();
config.Configure();
現(xiàn)在,每當(dāng)您的代碼中使用_log對(duì)象記錄錯(cuò)誤或信息時(shí),SQL語(yǔ)句將被插入到Log4NetSql表中。您可以使用以下查詢查看已記錄的SQL語(yǔ)句:
SELECT * FROM Log4NetSql;
請(qǐng)注意,這種方法可能會(huì)對(duì)性能產(chǎn)生影響,因?yàn)樗鼤?huì)在每次記錄日志時(shí)執(zhí)行SQL插入操作。在生產(chǎn)環(huán)境中,您可能需要考慮使用異步記錄或批量插入來(lái)減少性能影響。