如何在不使用第三方库的情况下登录C#？

Question

我想在我的应用程序中实现日志记录,但宁愿不使用任何外部框架,如log4net.

所以我想做一些像DOS的文件回声.最有效的方法是什么？

有没有办法记录未使用外部框架记录的未处理的异常？

Answer 1

public void Logger(String lines)
{

 // Write the string to a file.append mode is enabled so that the log
 // lines get appended to  test.txt than wiping content and writing the log

  System.IO.StreamWriter file = new System.IO.StreamWriter("c:\\test.txt",true);
  file.WriteLine(lines);

  file.Close();

}

有关更多信息MSDN:

Answer 2

我宁愿不使用像log4j.net这样的外部框架.

为什么？Log4net可能会满足您的大多数要求.例如,检查此类:RollingFileAppender.

Log4net已有详细记录,网上有数千个资源和用例.

Answer 3

您可以直接写入事件日志.请查看以下链接:
http ://support.microsoft.com/kb/307024
http://msdn.microsoft.com/en-us/library/system.diagnostics.eventlog.aspx

以下是来自MSDN的示例:

using System;
using System.Diagnostics;
using System.Threading;

class MySample{

    public static void Main(){

        // Create the source, if it does not already exist.
        if(!EventLog.SourceExists("MySource"))
        {
             //An event log source should not be created and immediately used.
             //There is a latency time to enable the source, it should be created
             //prior to executing the application that uses the source.
             //Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog");
            Console.WriteLine("CreatedEventSource");
            Console.WriteLine("Exiting, execute the application a second time to use the source.");
            // The source is created.  Exit the application to allow it to be registered.
            return;
        }

        // Create an EventLog instance and assign its source.
        EventLog myLog = new EventLog();
        myLog.Source = "MySource";

        // Write an informational entry to the event log.    
        myLog.WriteEntry("Writing to event log.");

    }
}

Answer 4

如果您正在寻找一种真正简单的记录方式,您可以使用这一个衬垫.如果该文件不存在,则创建该文件.

System.IO.File.AppendAllText(@"c:\log.txt", "mymsg\n");

Answer 5

我曾经写过自己的错误记录,直到我发现了ELMAH.我从来没有能够像ELMAH那样完美地收到电子邮件部分.

Answer 6

如果您想要接近.NET,请查看Enterprise Library Logging Application Block.你看这里.或者快速入门教程检查一下.我使用了企业库中的验证应用程序块,它非常适合我的需求,并且非常容易在项目中"继承"(安装它并引用它!).