String和ByteBuffer互轉

String 轉換 ByteBuffer：

  

public static ByteBuffer getByteBuffer(String str) {

return ByteBuffer.wrap(str.getBytes());

}

2

ByteBuffer 轉換 String：

 

public static String getString(ByteBuffer buffer) {

Charset charset = null;

CharsetDecoder decoder = null;

CharBuffer charBuffer = null;

try {

charset = Charset.forName("UTF-8");

decoder = charset.newDecoder();

                       //用這個的話，只能輸出來一次結果，第二次顯示為空

// charBuffer = decoder.decode(buffer);

charBuffer = decoder.decode(buffer.asReadOnlyBuffer());

return charBuffer.toString();

} catch (Exception ex) {

ex.printStackTrace();

return "error";

}

}