哪里Console.WriteLine在ASP.NET中去? [英] Where does Console.WriteLine go in ASP.NET?

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问题描述

在J2EE应用程序(在WebSphere像一个运行),当我使用的System.out.println(),我的文字去到标准输出,它被映射到通过WebSphere管理控制台的文件。

In a J2EE application (like one running in WebSphere), when I use System.out.println(), my text goes to standard out, which is mapped to a file by the WebSphere admin console.

在ASP.NET应用程序(在IIS像一个运行),其中的确的输出Console.WriteLine()去了? IIS进程必须具有标准输入,输出和错误;但标准输出映射到Windows版本的/ dev / null的,或者我在这里缺少一个关键的概念?

In an ASP.NET application (like one running in IIS), where does the output of Console.WriteLine() go? The IIS process must have a stdin, stdout and stderr; but is stdout mapped to the Windows version of /dev/null or am I missing a key concept here?

我的不要求如果我应该记录有(我用log4net的),但哪里输出去了?我最好的信息从这个<少时href=\"http://www.velocityreviews.com/forums/t91075-where-does-consolewriteline-goto.html\">discussion在那里,他们说 Console.SetOut()可修改的TextWriter ,但它仍然没有回答的问题是什么控制台的初始值,或者如何设置它在运行时code的配置/之外。

I'm not asking if I should log there (I use log4net), but where does the output go? My best info came from this discussion where they say Console.SetOut() can change the TextWriter, but it still didn't answer the question on what the initial value of the Console is, or how to set it in config/outside of runtime code.

推荐答案

如果你看一下的控制台类://en.wikipedia .ORG /维基/ .NET_Reflector>。NET的反射,你会发现,如果一个进程没有关联的控制台, Console.Out Console.Error Stream.Null 进行备份(裹在的TextWriter ),这是一个虚拟的实施,基本上忽略所有输入,并给出了无输出。

If you look at the Console class in .NET Reflector, you'll find that if a process doesn't have an associated console, Console.Out and Console.Error are backed by Stream.Null (wrapped inside a TextWriter), which is a dummy implementation of Stream that basically ignores all input, and gives no output.

因此​​,在概念上等同于的/ dev / null的,但实现更精简:有没有实际的I / O正与空设备

So it is conceptually equivalent to /dev/null, but the implementation is more streamlined: there's no actual I/O taking place with the null device.

此外,除了呼吁放样,有没有办法配置默认。

Also, apart from calling SetOut, there is no way to configure the default.

这篇关于哪里Console.WriteLine在ASP.NET中去?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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