Transform ServletInputStream to String

I am trying to get the bo开发者_StackOverflow社区dy of a HttpServletRequest in a String. What's the best elegant way to do so?

Using Apache Commons IO:

String requestStr = IOUtils.toString(request.getInputStream());

Other way, using Guava:

ByteSource.wrap(ByteStreams.toByteArray(request.getInputStream()))
    .asCharSource(Charsets.UTF_8).read()

See also:

• http://www.baeldung.com/java-convert-inputstream-to-reader