【发布时间】：2022-07-25 19:43:08
【问题描述】：
NLog、NLog.Database、NLog.Extensions.Logging 和 NLog.Web.AspNetCore 的版本为 5.0.0。 平台为 .NET Core 3.1。
这曾经在 NLog 4.x 系列中可以正常工作，但现在这会导致异常，我还没有找到解决方法。我对 NLog.config 文件所做的唯一更改是添加对 NLog.Database 程序集的引用。当我删除 NLog.config 中 layout="${aspnet-request-posted-body}" 的行时，它工作正常。
NLog.config 内容
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
autoReload="true"
throwExceptions="false"
throwConfigExceptions="true"
internalLogLevel="Warn" internalLogFile="c:\temp\nlog-internal.log">
<!-- enable asp.net core layout renderers -->
<extensions>
<add assembly="NLog.Database"/>
<add assembly="NLog.Web.AspNetCore"/>
</extensions>
<targets async="true">
<target name="database" xsi:type="Database">
<dbProvider>Microsoft.Data.SqlClient.SqlConnection, Microsoft.Data.SqlClient</dbProvider>
<connectionString>Server=xxxxxx;Database=xxxxxx;Trusted_Connection=True;Encrypt=True;</connectionString>
<commandText>
INSERT INTO CisServiceLog
(
[Date],
[Thread],
[Level],
[Logger],
[Message],
[Exception],
[ApplicationDomain],
[MachineName],
[Action],
[Controller],
[Url],
[Method],
[RemoteIp],
[IISSiteName],
[ContentType],
[Host],
[QueryString],
[Request],
[ASPNetTraceID],
[UserAgent]
)
VALUES
(
@log_date,
@thread,
@log_level,
@logger,
@message,
@exception,
@appdomain,
@machine_name,
@action,
@controller,
@url,
@method,
@ip,
@iissitename,
@contenttype,
@host,
@querystring,
@request,
@aspnettraceid,
@useragent
)
</commandText>
<parameter name="@log_date" layout="${date}" />
<parameter name="@thread" layout="${threadid}" size="10" />
<parameter name="@log_level" layout="${level}" size="8" />
<parameter name="@logger" layout="${logger}" size="256" />
<parameter name="@message" layout="${message}" size="8000" />
<parameter name="@exception" layout="${exception:tostring}" size="8000" />
<parameter name="@appdomain" layout="${appdomain}" size="256" />
<parameter name="@machine_name" layout="${machinename}" size="256" />
<parameter name="@action" layout="${aspnet-mvc-action}" size="256" />
<parameter name="@controller" layout="${aspnet-mvc-controller}" size="256" />
<parameter name="@url" layout="${aspnet-request-url}" size="1024" />
<parameter name="@method" layout="${aspnet-request-method}" size="16" />
<parameter name="@ip" layout="${aspnet-request-ip:CheckForwardedForHeader=true}" size="32" />
<parameter name="@iissitename" layout="${iis-site-name}" size="256" />
<parameter name="@contenttype" layout="${aspnet-request-contenttype}" size="256" />
<parameter name="@host" layout="${aspnet-request-host}" size="256" />
<parameter name="@querystring" layout="${aspnet-request-querystring}" size="4096" />
<parameter name="@request" layout="${aspnet-request-posted-body}" size="8000" />
<parameter name="@aspnettraceid" layout="${aspnet-traceidentifier}" size="64" />
<parameter name="@useragent" layout="${aspnet-request-useragent}" size="1024" />
</target>
</targets>
<rules>
<logger name="*" minlevel="Warn" writeTo="database" />
</rules>
</nlog>
异常堆栈跟踪：
NLog.NLogConfigurationException: Exception when loading configuration C:\git\Commercial_BOLCISServices\BusinessOnline.WebApi\bin\Debug\netcoreapp3.1\Logging.config
---> NLog.NLogConfigurationException: 'DatabaseParameterInfo' cannot assign property 'Layout'='${aspnet-request-posted-body}'. Error: Error parsing layout aspnet-request-posted-body
---> NLog.NLogConfigurationException: Error parsing layout aspnet-request-posted-body
---> System.ArgumentException: LayoutRenderer symbol-name is unknown: 'aspnetrequestpostedbody'. Extension NLog.Web.AspNetCore not included?
at NLog.Config.Factory`2.CreateInstance(String itemName)
at NLog.Layouts.LayoutParser.GetLayoutRenderer(String typeName, ConfigurationItemFactory configurationItemFactory, Nullable`1 throwConfigExceptions)
--- End of inner exception stack trace ---
at NLog.Layouts.LayoutParser.GetLayoutRenderer(String typeName, ConfigurationItemFactory configurationItemFactory, Nullable`1 throwConfigExceptions)
at NLog.Layouts.LayoutParser.ParseLayoutRenderer(ConfigurationItemFactory configurationItemFactory, SimpleStringReader stringReader, Nullable`1 throwConfigExceptions)
at NLog.Layouts.LayoutParser.CompileLayout(ConfigurationItemFactory configurationItemFactory, SimpleStringReader sr, Nullable`1 throwConfigExceptions, Boolean isNested, String& text)
at NLog.Layouts.LayoutParser.CompileLayout(String value, ConfigurationItemFactory configurationItemFactory, Nullable`1 throwConfigExceptions, String& text)
at NLog.Layouts.SimpleLayout.SetLayoutText(String value, Nullable`1 throwConfigExceptions)
at NLog.Layouts.SimpleLayout..ctor(String txt, ConfigurationItemFactory configurationItemFactory, Nullable`1 throwConfigExceptions)
at NLog.Layouts.SimpleLayout..ctor(String txt, ConfigurationItemFactory configurationItemFactory)
at NLog.Internal.PropertyHelper.TryParseLayoutValue(String stringValue, ConfigurationItemFactory configurationItemFactory)
at NLog.Internal.PropertyHelper.TryNLogSpecificConversion(Type propertyType, String value, ConfigurationItemFactory configurationItemFactory, Object& newValue)
at NLog.Internal.PropertyHelper.SetPropertyFromString(Object targetObject, PropertyInfo propInfo, String stringValue, ConfigurationItemFactory configurationItemFactory)
--- End of inner exception stack trace ---
at NLog.Internal.PropertyHelper.SetPropertyFromString(Object targetObject, PropertyInfo propInfo, String stringValue, ConfigurationItemFactory configurationItemFactory)
at NLog.Internal.PropertyHelper.SetPropertyFromString(Object targetObject, String propertyName, String stringValue, ConfigurationItemFactory configurationItemFactory)
at NLog.Config.LoggingConfigurationParser.SetPropertyValueFromString(Object targetObject, String propertyName, String propertyValue, ValidatedConfigurationElement element)
at NLog.Config.LoggingConfigurationParser.ConfigureObjectFromAttributes(Object targetObject, ValidatedConfigurationElement element, Boolean ignoreType)
at NLog.Config.LoggingConfigurationParser.ConfigureFromAttributesAndElements(Object targetObject, ValidatedConfigurationElement element, Boolean ignoreTypeProperty)
at NLog.Config.LoggingConfigurationParser.ParseArrayItemFromElement(Type elementType, ValidatedConfigurationElement element)
at NLog.Config.LoggingConfigurationParser.AddArrayItemFromElement(Object o, PropertyInfo propInfo, ValidatedConfigurationElement element)
at NLog.Config.LoggingConfigurationParser.SetPropertyValuesFromElement(Object o, ValidatedConfigurationElement childElement, ILoggingConfigurationElement parentElement)
at NLog.Config.LoggingConfigurationParser.ParseTargetElement(Target target, ValidatedConfigurationElement targetElement, Dictionary`2 typeNameToDefaultTargetParameters)
at NLog.Config.LoggingConfigurationParser.ParseTargetsElement(ValidatedConfigurationElement 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)
【问题讨论】：
标签： nlog