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Home Forums Get an OutputStream into a String – MindStick
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Get an OutputStream into a String

Anonymous User 2448 10 Aug 2015
What's the best way to pipe the output from an java.io.OutputStream to a String in Java?

Say I have the method:

  writeToStream(Object o, OutputStream out)
Which writes certain data from the object to the given stream. However, I want to get this output into a String as easily as possible.

I'm considering writing a class like this (untested):

class StringOutputStream extends OutputStream {
  StringBuilder mBuf;
  public void write(int byte) throws IOException {
    mBuf.append((char) byte);
  }
  public String getString() {
    return mBuf.toString();
  }
}
But is there a better way? I only want to run a test!
java javastring
Anonymous User
Ask by Anonymous User
Updated 11 Aug 2015

1 Answers

Anonymous User
Anonymous User 11 Aug 2015
Report Abuse
I would use a ByteArrayOutputStream. And on finish you can call:

new String( baos.toByteArray(), codepage );
or better

baos.toString( codepage );
For the String constructor the codepage can be a String or an instance of java.nio.charset.Charset. A possible value is java.nio.charset.StandardCharsets.UTF_8.

The method toString accept only a String as codepage parameter (stand Java 8).
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