我在我的.NET 6应用程序中配置了Nlog,它正确地记录到文件和控制台,但是当我试图写入我的ORACLE数据库时,它在Nlog内部日志文件中抛出MISSING Select关键字错误。
下面是我的nlog.config文件。我使用github上的示例配置了它,并为ORACLE更改了必要的DbProvider。
<?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"
autoReload="true"
throwConfigExceptions="true"
internalLogLevel="Trace"
internalLogFile="c:\Temp\nlog-internal.txt">
<extensions>
<add assembly="NLog.Web.AspNetCore"/>
</extensions>
<targets>
<!-- Database Target: Logs to Oracle Database -->
<target name="database" xsi:type="Database"
dbProvider="Oracle.ManagedDataAccess.Client.OracleConnection, Oracle.ManagedDataAccess"
connectionString ="Data Source=DataSource;User Id=username;Password=pwd;"
commandText ="insert into LogTable(Level, Message, CreatedOn, Exception, URL, Logger, Action) values(:level, :message, :date, :exception, :url, :logger, :action)"
commandType ="Text">
<parameter name="level" layout="${level}" />
<parameter name="message" layout="${message}" />
<parameter name="date" layout="${longdate}" dbType="DateTime"/>
<parameter name="exception" layout="${exception:format=ToString}" />
<parameter name="url" layout="${aspnet-request-url}" />
<parameter name="logger" layout="${logger}" />
<parameter name="action" layout="${aspnet-mvc-action}" />
</target>
<!-- Console Target: Logs to Console -->
<target name="console" xsi:type="ColoredConsole" layout="${longdate} ${logger} ${level:uppercase=true} - ${message}" />
<target xsi:type="File" name="ownFile-web" fileName="c:\temp\nlog-AspNetCore6-own.log"
layout="${longdate}|${event-properties:item=EventId:whenEmpty=0}|${level:uppercase=true}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}|${callsite}" />
</targets>
<rules>
<!-- Log all messages to database and console -->
<logger name="Microsoft.*" maxlevel="off" final="true" />
<logger name="System.Net.Http.*" maxlevel="off" final="true" />
<logger name="*" minlevel="Trace" writeTo="ownFile-web" />
<logger name="*" minlevel="Trace" writeTo="database,console" />
</rules>
</nlog>
字符串
下面是我的nlog内部日志文件中的错误:
2023-11-08 07:45:15.3687 Trace DatabaseTarget(Name=database): Open connection.
2023-11-08 07:45:15.3756 Trace DatabaseTarget(Name=database): Executing Text: insert into LogTable(Level, Message, CreatedOn, Exception, URL, Logger, Action) values(:level, :message, :date, :exception, :url, :logger, :action)
2023-11-08 07:45:15.3756 Trace DatabaseTarget: Parameter: 'level' = 'Info' (String)
2023-11-08 07:45:15.3756 Trace DatabaseTarget: Parameter: 'message' = 'Successfully fetched data' (String)
2023-11-08 07:45:15.3756 Trace DatabaseTarget: Parameter: 'date' = '11/08/2023 07:45:15' (DateTime)
2023-11-08 07:45:15.3910 Trace DatabaseTarget: Parameter: 'exception' = '' (String)
2023-11-08 07:45:15.3910 Trace DatabaseTarget: Parameter: 'url' = 'http://localhost/api/message/get' (String)
2023-11-08 07:45:15.3910 Trace DatabaseTarget: Parameter: 'logger' = 'Controller' (String)
2023-11-08 07:45:15.3910 Trace DatabaseTarget: Parameter: 'action' = 'GetPage' (String)
2023-11-08 07:45:15.4523 Error DatabaseTarget(Name=database): Error when writing to database. Exception: Oracle.ManagedDataAccess.Client.OracleException (0x80004005): ORA-00928: missing SELECT keyword
at OracleInternal.ServiceObjects.OracleConnectionImpl.VerifyExecution(Int32& cursorId, Boolean bThrowArrayBindRelatedErrors, SqlStatementType sqlStatementType, Int32 arrayBindCount, OracleException& exceptionForArrayBindDML, Boolean& hasMoreRowsInDB, Boolean bFirstIterationDone)
at OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteNonQuery(String commandText, OracleParameterCollection paramColl, CommandType commandType, OracleConnectionImpl connectionImpl, Int32 longFetchSize, Int64 clientInitialLOBFS, OracleDependencyImpl orclDependencyImpl, Int64[]& scnFromExecution, OracleParameterCollection& bindByPositionParamColl, Boolean& bBindParamPresent, OracleException& exceptionForArrayBindDML, OracleConnection connection, Boolean isFromEF)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteNonQuery()
at NLog.Targets.DatabaseTarget.ExecuteDbCommandWithParameters(LogEventInfo logEvent, IDbConnection dbConnection, IDbTransaction dbTransaction)
at NLog.Targets.DatabaseTarget.WriteLogEventSuppressTransactionScope(LogEventInfo logEvent, String connectionString)
型
1条答案
按热度按时间o7jaxewo1#
LEVEL
是Oracle中的保留字,用于分层查询;如果不使用带引号的标识符,则不能将其用作列名。在尝试创建
LogTable
表时,您应该已经发现了这一点。如果你确实想使用
Level
作为标识符,那么用双引号将其括起来,并确保在标识符中使用与定义表时完全相同的大小写:字符串
更好的解决方案是不使用保留字作为列名,然后可以继续使用不带引号的标识符。
fiddle