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在我们的组织中，每个客户都有自己的数据库和各自的日志记录表。如何以编程方式配置 NLog，以便我可以将它指向每个客户的正确数据库？

就像是：

var loggerA = LogManager.GetLogger("CustomerA");
loggerA.Log("Customer A Record");
//Outputs to DatabaseA

LogManager.GetLogger("CustomerB");
loggerB.Log("Customer B Record");
//Outputs to DatabaseB

此外，如果相关，我们正在尝试使用 Common.Logging 进行配置。

目前，我们将尝试调整以下内容：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NLog.Config;
using NLog;
using NLog.Targets;

namespace Internal.Logging
{
    public static class LoggingManager
    {
        public static void ConfigureLogging(string databaseTargetConnectionString = null)
        {
            ConfigureCommonLogging();
            ConfigureAdapter(databaseTargetConnectionString);
        }

        private static void ConfigureAdapter(string databaseTargetConnectionString)
        {
            // Step 1. Create configuration object 
            var config = new LoggingConfiguration();

            // Step 2. Create targets and add them to the configuration
            var debuggerTarget = new DebuggerTarget();
            config.AddTarget("console", debuggerTarget);
            var fileTarget = new FileTarget();
            config.AddTarget("file", fileTarget);

            if (!string.IsNullOrEmpty(databaseTargetConnectionString))
            {
                var databaseTarget = new DatabaseTarget();
                databaseTarget.ConnectionString = databaseTargetConnectionString;
                config.AddTarget("database", databaseTarget);
            }

            // Step 3. Set target properties 
            debuggerTarget.Layout = @"${date:format=HH\\:MM\\:ss} ${message}";
            fileTarget.FileName = "${basedir}/file.txt";
            fileTarget.Layout = "${message}";

            // Step 4. Define rules
            var rule1 = new LoggingRule("*", LogLevel.Debug, debuggerTarget);
            config.LoggingRules.Add(rule1);

            var rule2 = new LoggingRule("*", LogLevel.Debug, fileTarget);
            config.LoggingRules.Add(rule2);

            // Step 5. Activate the configuration
            LogManager.Configuration = config;
        }

        private static void ConfigureCommonLogging()
        {
            var properties = new Common.Logging.Configuration.NameValueCollection();
            properties.Add("configType", "INLINE");
            Common.Logging.LogManager.Adapter = new Common.Logging.NLog.NLogLoggerFactoryAdapter(properties);
        }
    }
}
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1 回答 1

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像这样的东西：

<?xml version="1.0" ?>
<nlog autoReload="true">
    <targets>
        <target name="databaseA" type="Database">
            <dbprovider>mssql</dbprovider>
            <!-- params -->
        </target>
        <target name="databaseB" type="Database">
            <dbprovider>mssql</dbprovider>
            <!-- params -->
        </target>       
    </targets>

    <rules>
        <logger name="CustomerA" minlevel="Debug" appendTo="databaseA" />
        <logger name="CustomerB" minlevel="Debug" appendTo="databaseB" />       
    </rules>
</nlog>
于 2015-01-15T10:58:56.190 回答