Log4net 以编程方式配置 adoAppender

本文关键字:配置 adoAppender 方式 编程 Log4net | 更新日期: 2023-09-27 17:57:12

我需要在现有的log4net配置中添加一个ado appender。

我需要通过代码添加它。但是,我坚持添加常见的字符串参数,例如消息,因为我无法正确定义布局属性:在xml配置中,我们使用PatternLayout,但是通过代码PatternLayout不是IRowLayout,因此我遇到以下代码的错误:

    public static void AddStringParameterToAppender(this log4net.Appender.AdoNetAppender appender, string paramName, int size, string conversionPattern)
    {
        log4net.Appender.AdoNetAppenderParameter param = new log4net.Appender.AdoNetAppenderParameter();
        param.ParameterName = paramName;
        param.DbType = System.Data.DbType.String;
        param.Size = size;
        param.Layout = new log4net.Layout.PatternLayout(conversionPattern);
        appender.AddParameter(param);
    }

有人知道如何在代码中添加类似于以下xml示例的字符串参数吗:

<parameter>
    <parameterName value="@message" />
    <dbType value="String" />
    <size value="4000" />
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%message" />
    </layout>
</parameter>

Log4net 以编程方式配置 adoAppender

我终于找到了如何在IRawLayout中转换PatternLayout

为此,您必须使用log4net.Layout.Layout2RawLayoutAdapter

public static void AddStringParameterToAppender(this log4net.Appender.AdoNetAppender appender, string paramName, int size, string conversionPattern)
    {
        log4net.Appender.AdoNetAppenderParameter param = new log4net.Appender.AdoNetAppenderParameter();
        param.ParameterName = paramName;
        param.DbType = System.Data.DbType.String;
        param.Size = size;
        param.Layout = new log4net.Layout.Layout2RawLayoutAdapter(new log4net.Layout.PatternLayout(conversionPattern));
        appender.AddParameter(param);
    }