Java中如何将字符串的编码由UTF-8转换为ISO-8859-1呢？

实现思路:
    借助ByteBuffer对象进行中间存储，然后实现字符串编码的转换

Charset utf8charset = Charset.forName("UTF-8");
Charset iso88591charset = Charset.forName("ISO-8859-1");

ByteBuffer inputBuffer = ByteBuffer.wrap(new byte[]{(byte)0xC3, (byte)0xA2});

//UTF-8解码
CharBuffer data = utf8charset.decode(inputBuffer);

//ISO-8559-1编码
ByteBuffer outputBuffer = iso88591charset.encode(data);
byte[] outputData = outputBuffer.array();