Question

我需要在现有的log4net配置中添加ado appender。

我需要通过代码添加它。但是我仍然坚持添加常见的字符串参数，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所以我有以下代码的错误：< / p>

    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字符串参数，类似于以下xml示例：

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

Answer 1

我终于找到了如何转换PatternLayout中的IRawLayout。

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);
    }

Log4net以编程方式配置adoAppender

1 个答案: