log4net 2.0.8 nuget 中缺少 SmtpAppender? [英] SmtpAppender missing in log4net 2.0.8 nuget?

问题描述

我为 .NET Core 2.0 创建了一个控制台应用程序并安装了一个 log4net 2.0.8 nuget

I created a console app for .NET Core 2.0 and installed a log4net 2.0.8 nuget

我想使用 SmtpAppender 但它在库中不存在

I want to use the SmtpAppender but it does not exist in the library

这是我的 log4net 配置

This is my log4net configuration

<?xml version="1.0" encoding="utf-8" ?>
<log4net>
   <appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
    <to value="[e-mail]" />
    <from value="[e-mail]" />
    <subject type="log4net.Util.PatternString" value="Message logged" />
    <smtpHost value="localhost" />
    <authentication value="None" />
    <port value="25" />
    <bufferSize value="1" />
    <lossy value="false" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%utcdate [%level] - %message%newline%exception" />
    </layout>
  </appender>
  <root>
    <level value="All" />
    <appender-ref ref="SmtpAppender" />
  </root>
</log4net>

这是 Program.cs

And this is Program.cs

namespace Log4NetTest
{
    public class Program
    {
        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(Program));

        static void Main(string[] args)
        {
            XmlDocument log4netConfig = new XmlDocument();
            log4netConfig.Load(File.OpenRead("log4net.config"));

            var repo = log4net.LogManager.CreateRepository(Assembly.GetEntryAssembly(), 
                typeof(log4net.Repository.Hierarchy.Hierarchy));

            log4net.Config.XmlConfigurator.Configure(repo, log4netConfig["log4net"]);
            log.Info("TEST INFO LOG");
        }

    }
}

当我运行应用程序时，我希望将一封带有TEST INFO LOG"消息的电子邮件发送到本地主机，但 log4net 将其输出到控制台:

When I run the application, I expect an email to be sent to localhost with the message "TEST INFO LOG" but instead log4net outputs this to the console:

log4net:ERROR Could not create Appender [SmtpAppender] of type [log4net.Appender.SmtpAppender]. Reported error follows.
System.TypeLoadException: Could not load type 'log4net.Appender.SmtpAppender' from assembly 'log4net, Version=2.0.8.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'.
   at System.Reflection.RuntimeAssembly.GetType(RuntimeAssembly assembly, String name, Boolean throwOnError, Boolean ignoreCase, ObjectHandleOnStack type, ObjectHandleOnStack keepAlive)
   at System.Reflection.RuntimeAssembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
   at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement appenderElement)
log4net:ERROR Appender named [SmtpAppender] not found.
Press any key to continue . . .

SmtpAppender 类型甚至不会出现在对象浏览器中.有 SmtpPickupDirAppender 但这不是我想要使用的.

SmtpAppender type does not even appear in the object browser. There's SmtpPickupDirAppender but that's not what I want to use.

我错过了什么吗?经过一番搜索，我没有发现有人遇到过这个问题，log4net 2.0.8 已经 7 个月大，下载了数百万次.

Do I miss something? After some search I did not find anyone ever had this problem, log4net 2.0.8 is 7 months old and downloaded milion times.

推荐答案

由于内置了 SmtpAppender ，您可以很容易地为 Log4Net 创建自己的自定义 SMTP 附加程序.看看

Since the built in SmtpAppender is not supported for .Net Core, you can quite easily create your own custom SMTP appender for Log4Net. Take a look at

https://github.com/HatfieldConsultants/Log4Net.Core.CustomAppenders

作为如何构建非常基本的 SMTP appender 的示例.

as an example of how a very basic SMTP appender can be built.

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