nlog数据库目标参数布局错误

我正在尝试使用nlog数据库目标。如果我不手动创建数据库，首先它不起作用。另一件更重要的事情是，我无法登录。我收到有关我的参数布局的错误。从n日志内注销放：nlog数据库目标参数布局错误

2016-11-12 18:45:49.0479 Debug Setting 'DatabaseParameterInfo.layout' to '${logged}' 
2016-11-12 18:45:49.0744 Warn Error when setting property 'Layout' on 'NLog.Targets.DatabaseParameterInfo' Exception: System.ArgumentException: LayoutRenderer cannot be found: 'logged' 
    at NLog.Config.Factory`2.CreateInstance(String name) 
    at NLog.Layouts.LayoutParser.ParseLayoutRenderer(ConfigurationItemFactory configurationItemFactory, SimpleStringReader sr) 
    at NLog.Layouts.LayoutParser.CompileLayout(ConfigurationItemFactory configurationItemFactory, SimpleStringReader sr, Boolean isNested, String& text) 
    at NLog.Layouts.SimpleLayout.set_Text(String value) 
    at NLog.Internal.PropertyHelper.TryNLogSpecificConversion(Type propertyType, String value, Object& newValue, ConfigurationItemFactory configurationItemFactory) 
    at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory) 
2016-11-12 18:45:49.0909 Error Error in Parsing Configuration File. Exception: NLog.NLogConfigurationException: Exception occurred when loading configuration from C:\Github\private\WeBees\WeBees Client\WeBees.Server\NLog.config ---> NLog.NLogConfigurationException: Error when setting property 'Layout' on NLog.Targets.DatabaseParameterInfo ---> System.ArgumentException: LayoutRenderer cannot be found: 'logged' 
    at NLog.Config.Factory`2.CreateInstance(String name) 
    at NLog.Layouts.LayoutParser.ParseLayoutRenderer(ConfigurationItemFactory configurationItemFactory, SimpleStringReader sr) 
    at NLog.Layouts.LayoutParser.CompileLayout(ConfigurationItemFactory configurationItemFactory, SimpleStringReader sr, Boolean isNested, String& text) 
    at NLog.Layouts.SimpleLayout.set_Text(String value) 
    at NLog.Internal.PropertyHelper.TryNLogSpecificConversion(Type propertyType, String value, Object& newValue, ConfigurationItemFactory configurationItemFactory) 
    at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory) 
    --- End of inner exception stack trace --- 
    at NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory) 
    at NLog.Config.XmlLoggingConfiguration.ConfigureObjectFromAttributes(Object targetObject, NLogXmlElement element, Boolean ignoreType) 
    at NLog.Config.XmlLoggingConfiguration.AddArrayItemFromElement(Object o, NLogXmlElement element) 
    at NLog.Config.XmlLoggingConfiguration.SetPropertyFromElement(Object o, NLogXmlElement element) 
    at NLog.Config.XmlLoggingConfiguration.ParseTargetElement(Target target, NLogXmlElement targetElement) 
    at NLog.Config.XmlLoggingConfiguration.ParseTargetsElement(NLogXmlElement targetsElement) 
    at NLog.Config.XmlLoggingConfiguration.ParseNLogElement(NLogXmlElement 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 ---

我nlog.config

<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     internalLogFile="C:\Github\private\WeBees\WeBees Client\WeBees.Server\Logs\nlog.txt" internalLogLevel="Trace"> 
    <targets> 
    <target name="logfile" xsi:type="File" fileName="C:\Github\private\WeBees\WeBees Client\WeBees.Server\Logs\log.txt" /> 
    <target xsi:type="ColoredConsole" name="console" /> 
    <target name="database" xsi:type="Database"> 
     <!-- 
    Remarks: 
    The appsetting layouts require the NLog.Extended assembly. 
    The aspnet-* layouts require the NLog.Web assembly. 
    The Application value is determined by an AppName appSetting in Web.config. 
    The "NLogDb" connection string determines the database that NLog write to. 
    The create dbo.Log script in the comment below must be manually executed. 
    --> 

     <connectionStringName>dev</connectionStringName> 

     <!-- 
    SET ANSI_NULLS ON 
    SET QUOTED_IDENTIFIER ON 
    CREATE TABLE [dbo].[Log] (
     [Id] [int] IDENTITY(1,1) NOT NULL, 
     [Application] [nvarchar](50) NOT NULL, 
     [Logged] [datetime] NOT NULL 
    CONSTRAINT [PK_dbo.Log] PRIMARY KEY CLUSTERED ([Id] ASC) 
     WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 
    --> 

     <commandText> 
     insert into dbo.Log (
     Application, Logged 
     ) values (
     @Application, @Logged 
     ); 
     </commandText> 

     <parameter name="@application" layout="dadasda" /> 
     <parameter name="@logged" layout="${logged}" /> 
    </target> 
    </targets> 
    <rules> 
    <logger name="*" minlevel="Info" writeTo="logfile,console" /> 
    </rules> 
</nlog>

如果我手动创建表，并把常量布局就像它的工作原理“应用”参数。

我跟着文档，但不能使它的工作。我有NLog &已安装NLog.Web扩展。

在此先感谢！

来源

2016-11-12 Gal Ziv

如错误消息所示，您应该定义${logged}，例如，在您的配置文件：

<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     internalLogFile="C:\Github\private\WeBees\WeBees Client\WeBees.Server\Logs\nlog.txt" internalLogLevel="Trace"> 

    <variable name="logged" value="my var" /> 
    <targets>

或与其他布局渲染器，如${message}替换它，请参阅list of possible layout renderers

关于创建表，NLOG将只创建表，如果你提供了一个安装查询：

<target xsi:type="Database" name="db"> 

    <!-- connection string --> 
    <dbProvider>System.Data.SqlClient</dbProvider> 
    <connectionString>server=.\SQLEXPRESS;database=MyLogs;integrated security=sspi</connectionString> 

    <!-- commands to install database --> 
    <install-command> 
    <text>CREATE DATABASE MyLogs</text> 
    <connectionString>server=.\SQLEXPRESS;database=master;integrated security=sspi</connectionString> 
    <ignoreFailures>true</ignoreFailures> 
    </install-command> 

    <install-command> 
    <text> 
     CREATE TABLE LogEntries(
     id int primary key not null identity(1,1), 
     TimeStamp datetime2, 
     Message nvarchar(max), 
     level nvarchar(10), 
     logger nvarchar(128)) 
    </text>

，并调用安装，C＃：

LogManager.Configuration.Install(new InstallationContext()); //install all the targets, e.g. database, eventlogger etc.

来源

2016-11-12 22:33:58 Julian

nlog数据库目标参数布局错误

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