Nlog -Mongodb 创建集合

Question

我正在使用 Nlog(4.7.5)、Nlog.mongo(4.6.0.118) 和 mongoDB.Driver(2.11.3)。 使用 mongodb 登录时，我需要创建这样的集合 "log-2020-10-18"。 所以第 18 个日期日志存储在此集合中。第二天或等日志将存储在 "log-${shortdate}" 集合中。每天日志以集合名称的格式存储。 简而言之，我想将日志每天存储在 mongodb.so 中很容易查看日常日志。 我可以在运行时创建集合吗（我的意思是在 nlog.config 文件中） 那有可能做到吗？怎么样？

这里是 mongodb 目标

    <target xsi:type="Database"
                    name="mongo"
                    includeDefaults="false"
                    connectionString="mongodb://localhost/financeLogs"
                    collectionName="log-${shortdate}"
                    databaseName="financeLogs">
                <property name="LongDate" layout="${longdate}" bsonType="DateTime" />
                <property name="Level" layout="${level}"/>
                <property name="Message" layout="${message}"/>
    
            </target>

InternalLogger 日志

2020-10-18 14:26:06.1806 Warn Error when setting 'log-${shortdate}' on attibute 'collectionName' Exception: System.NotSupportedException: Parameter collectionName not supported on DatabaseTarget
   at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory)
   at NLog.Config.LoggingConfigurationParser.ConfigureObjectFromAttributes(Object targetObject, ILoggingConfigurationElement element, Boolean ignoreType)
2020-10-18 14:26:06.2640 Error Exception when parsing D:\Git\finance.api\FinanceAPI\bin\Debug\netcoreapp3.1\nlog.Development.config.  Exception: System.NotSupportedException: Parameter collectionName not supported on DatabaseTarget
   at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory)
   at NLog.Config.LoggingConfigurationParser.ConfigureObjectFromAttributes(Object targetObject, ILoggingConfigurationElement element, Boolean ignoreType)
   at NLog.Config.LoggingConfigurationParser.ParseTargetElement(Target target, ILoggingConfigurationElement targetElement, Dictionary`2 typeNameToDefaultTargetParameters)
   at NLog.Config.LoggingConfigurationParser.ParseTargetsElement(ILoggingConfigurationElement targetsElement)
   at NLog.Config.LoggingConfigurationParser.ParseNLogSection(ILoggingConfigurationElement configSection)
   at NLog.Config.XmlLoggingConfiguration.ParseNLogSection(ILoggingConfigurationElement configSection)
   at NLog.Config.LoggingConfigurationParser.LoadConfig(ILoggingConfigurationElement nlogConfig, String basePath)
   at NLog.Config.XmlLoggingConfiguration.ParseNLogElement(ILoggingConfigurationElement nlogElement, String filePath, Boolean autoReloadDefault)
   at NLog.Config.XmlLoggingConfiguration.ParseTopLevel(NLogXmlElement content, String filePath, Boolean autoReloadDefault)
   at NLog.Config.XmlLoggingConfiguration.Initialize(XmlReader reader, String fileName, Boolean ignoreErrors)
2020-10-18 14:26:06.2980 Warn Error has been raised. Exception: NLog.NLogConfigurationException: Exception when parsing D:\Git\finance.api\FinanceAPI\bin\Debug\netcoreapp3.1\nlog.Development.config. 
 ---> System.NotSupportedException: Parameter collectionName not supported on DatabaseTarget
   at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory)
   at NLog.Config.LoggingConfigurationParser.ConfigureObjectFromAttributes(Object targetObject, ILoggingConfigurationElement element, Boolean ignoreType)
   at NLog.Config.LoggingConfigurationParser.ParseTargetElement(Target target, ILoggingConfigurationElement targetElement, Dictionary`2 typeNameToDefaultTargetParameters)
   at NLog.Config.LoggingConfigurationParser.ParseTargetsElement(ILoggingConfigurationElement targetsElement)
   at NLog.Config.LoggingConfigurationParser.ParseNLogSection(ILoggingConfigurationElement configSection)
   at NLog.Config.XmlLoggingConfiguration.ParseNLogSection(ILoggingConfigurationElement configSection)
   at NLog.Config.LoggingConfigurationParser.LoadConfig(ILoggingConfigurationElement nlogConfig, String basePath)
   at NLog.Config.XmlLoggingConfiguration.ParseNLogElement(ILoggingConfigurationElement nlogElement, String filePath, Boolean autoReloadDefault)
   at NLog.Config.XmlLoggingConfiguration.ParseTopLevel(NLogXmlElement content, String filePath, Boolean autoReloadDefault)
   at NLog.Config.XmlLoggingConfiguration.Initialize(XmlReader reader, String fileName, Boolean ignoreErrors)
   --- End of inner exception stack trace ---
2020-10-18 14:26:06.3558 Info Validating config: TargetNames=file, fileAsException, ConfigItems=56, FilePath=D:\Git\finance.api\FinanceAPI\bin\Debug\netcoreapp3.1\nlog.Development.config
2020-10-18 14:26:06.3859 Warn Unused target detected. Add a rule for this target to the configuration. TargetName: file
2020-10-18 14:26:06.3975 Warn Unused target detected. Add a rule for this target to the configuration. TargetName: fileAsException

Answer 1

你试过这个吗（注意xsi:type="Mongo"的使用）：

    <target xsi:type="Mongo"
            name="mongo"
            includeDefaults="false"
            connectionString="mongodb://localhost/financeLogs"
            collectionName="log-${shortdate}"
            databaseName="financeLogs">
        <property name="LongDate" layout="${longdate}" bsonType="DateTime" />
        <property name="Level" layout="${level}"/>
        <property name="Message" layout="${message}"/>
    </target>

确保使用https://www.nuget.org/packages/NLog.Mongo/4.6.0.123（或更新版本）以改进对在collectionName= 中使用${shortdate} 的支持