Nlog-Mongodb创建集合

我使用的是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”

。 因此，第18个日期日志存储在此集合中。第二天或以后，日志将存储在

日志-${shortdate}

集合中。日志每天以集合名称的格式存储。 简而言之，我想在mongodb中按天存储日志，这样就可以很容易地查看日常日志。 我可以在运行时创建集合吗（我是指在nlog.config文件中） 那么这有可能做到吗？怎么做

这是mongodb的目标

    <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>

您是否尝试过此方法（注意使用了

xsi:type=“Mongo”

）：

---

请确保使用（或更新版本）以改进对在

collectionName=

@BhavinVarsur中使用

${shortdate}

的支持。BhavinVarsur“不工作”是非常模糊的。是否创建了第一个集合？是否无法在日滚动时创建下一个集合？能否启用NLog InternalLogger并在初始创建和日滚动时显示输出？另见：啊。我现在看到了问题：（

\u defaultLogEvent

对于滚动日期来说不是一个很好的值）我刚刚从[和你的答案中的集合名称中添加了目标。我很惊讶它现在可以工作了。谢谢！！@BhavinVarsur创建了pull请求来改进对日期时间布局渲染器的支持：@BhavinVarsur现在已经发布，支持${shortdate}在collection-name.中，还记得使用

xsi:type=“Mongo”

而不是

xsi:type=“Database”

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