log4net AdoNetAppender 缺少默认参数

Question

尝试将 log4net AdoNetAppender 与 example/default 配置一起使用我收到一个奇怪的参数错误

log4net:ERROR [AdoNetAppender] ErrorCode: GenericFailure. Exception while writing to database
System.IndexOutOfRangeException: An SqlParameter with ParameterName '@log_date' is not contained by this SqlParameterCollection.

我没有发现参数声明有任何问题

<parameter>
    <parameterName value="@log_date"/>
    <dbType value="DateTime" />
    <layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>

但是，尝试删除参数只是下一个以相同方式失败的参数，我尝试更改连接字符串，认为可能存在我没有看到的潜在错误，不是运气要么。

log4net 调试日志甚至清楚地表明

 log4net: Setting Collection Property [AddParameter] to object [log4net.Appender.AdoNetAppenderParameter]

对于每个参数，所以我真的不知道发生了什么

下面是我为 log4net 准备的完整配置

<log4net>
  <root>
    <level value="ALL" />
    <appender-ref ref="DBAppender" />
    <appender-ref ref="RollingFileAppender" />
    <appender-ref ref="DebugAppender" />
  </root>

  <appender name="DBAppender" type="log4net.Appender.AdoNetAppender">
    <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    <connectionStringName value="CustomerDB" />
    <bufferSize value="1" />
    <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />
    <parameter>
      <parameterName value="@log_date"/>
      <dbType value="DateTime" />
      <layout type="log4net.Layout.RawTimeStampLayout" />
    </parameter>
    <parameter>
      <parameterName value="@thread" />
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%thread" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@log_level" />
      <dbType value="String" />
      <size value="50" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%level" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@logger" />
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%logger" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@message" />
      <dbType value="String" />
      <size value="4000" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%message" />
      </layout>
    </parameter>
  </appender>

  <appender name="DebugAppender" type="log4net.Appender.DebugAppender">
    <immediateFlush value="true" />
    <layout type="log4net.Layout.SimpleLayout" />
  </appender>
</log4net>

Answer 1

您需要更新到 log4net 2.0.5、2.0.4 AdoNetAppender 已损坏。

log4net AdoNetAppender 缺少默认参数

log4net AdoNetAppender missing default parameter

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