Java：将PrintStream转换为String？

使用a

ByteArrayOutputStream

import java.io.ByteArrayOutputStream;import java.io.PrintStream;import java.nio.charset.StandardCharsets;    final ByteArrayOutputStream baos = new ByteArrayOutputStream();    final String utf8 = StandardCharsets.UTF_8.name();    try (PrintStream ps = new PrintStream(baos, true, utf8)) {        yourFunction(object, ps);    }    String data = baos.toString(utf8);