是否有一种简单且安全的方法将 PrintWriter 转换为 PrintStream? [英] Is there a simple and safe way to convert a PrintWriter into a PrintStream?

问题描述

是否有一种干净简单的方法可以将 java.io.PrintWriter 的实例转换为 java.io.PrintStream 的实例?

解决方案

首先从 Writer 获取一个 OutputStream.请参阅这个问题

然后将其作为参数传递给 PrintStream 构造函数:

OutputStream os = new WriterOutputStream(writer);PrintStream ps = new PrintStream(os);

更新:commons-io 2.0 有 WriterOutputStream，所以用它.>

Is there a clean and simple way to convert an instance of java.io.PrintWriter into a java.io.PrintStream?

解决方案

First obtain an OutputStream from the Writer. See this question

Then pass it as argument to the PrintStream constructor:

OutputStream os = new WriterOutputStream(writer);
PrintStream ps = new PrintStream(os);

Update: commons-io 2.0 has WriterOutputStream, so use it.

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