Java的平台无关/ dev / null输出接收器 [英] platform-independent /dev/null output sink for Java

问题描述

除了匿名类（ new OutputStream（）{...} ）之外，任何人都可以建议道德相当于 new FileOutputStream（ / dev / null）哪个也适用于Windows？

Other than an anonymous class (new OutputStream() { ... }), can anyone suggest a moral equivalent of new FileOutputStream("/dev/null") that also works on Windows?

如果有人想知道'这是为了什么？'

In case someone's wondering 'what's this for?'

我有一个程序可以对文件进行一致性分析。它有一个'详细'选项。当verbose选项打开时，我想看到很多输出。该程序并不匆忙，它是一个工具，所以不是编写所有额外的 if 语句来测试我是否需要输出，我只想将它写入不需要时使用bit-bucket。

I have a program that does a consistency analysis on a file. It has a 'verbose' option. When the verbose option is on, I want to see a lot of output. The program is not in a hurry, it's a tool, so instead of writing all those extra if statements to test if I want the output, I just want to write it to the bit-bucket when not desired.

推荐答案

你可以在apache commons中使用NullOutputStream
https://commons.apache.org /proper/commons-io/javadocs/api-2.4/org/apache/commons/io/output/NullOutputStream.html

You can use NullOutputStream from apache commons https://commons.apache.org/proper/commons-io/javadocs/api-2.4/org/apache/commons/io/output/NullOutputStream.html

或者只是实施自己的

package mypackage;

import java.io.OutputStream;
import java.io.IOException;

public class NullOutputStream extends OutputStream {
    public void write(int i) throws IOException {
        //do nothing
    }
}

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