String和ByteBuffer互转

String 转换 ByteBuffer：

  

public static ByteBuffer getByteBuffer(String str) {

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

}

2

ByteBuffer 转换 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();

                       //用这个的话，只能输出来一次结果，第二次显示为空

// charBuffer = decoder.decode(buffer);

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

return charBuffer.toString();

} catch (Exception ex) {

ex.printStackTrace();

return "error";

}

}