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log4net.Config.XmlConfigurator.Configure();

在什么地方让log4net读取您的配置?例如.在Global.asax中:

somewhere to make log4net read your configuration? E.g. in Global.asax:

void Application_Start(object sender, EventArgs e) 
{
    // Code that runs on application startup

    // Initialize log4net.
    log4net.Config.XmlConfigurator.Configure();
}